The report below shows ASNs assigned to United States, ranked by the total number of IP addresses currently active on each network. Click on the ASN for full IP address information, whois details and more. You can also view our hosting report to see the networks ranked by how many domain names they host.

ASN Name Num IPs
AS7018 AT&T Services, Inc. 83,856,640
AS721 DoD Network Information Center 72,462,080
AS7922 Comcast Cable Communications, LLC 71,221,504
AS3356 Level 3 Communications, Inc. 43,848,832
AS701 MCI Communications Services, Inc. d/b/a Verizon Business 43,372,544
AS71 Hewlett-Packard Company 33,740,032
AS6167 Cellco Partnership DBA Verizon Wireless 30,652,928
AS174 Cogent Communications 27,873,792
AS8075 Microsoft Corporation 20,908,288
AS209 Qwest Communications Company, LLC 20,744,704
AS16509 Amazon.com, Inc. 18,240,000
AS1239 Sprint 18,214,912
AS2686 AT&T Global Network Services, LLC 17,502,464
AS7377 University of California, San Diego 17,049,856
AS714 Apple Inc. 16,794,880
AS6389 BellSouth.net Inc. 15,037,696
AS5650 Frontier Communications of America, Inc. 14,923,264
AS35994 Akamai Technologies, Inc. 12,786,048
AS21928 T-Mobile USA, Inc. 12,681,984
AS22394 Cellco Partnership DBA Verizon Wireless 12,462,080
AS22773 Cox Communications Inc. 12,093,184
AS3 Massachusetts Institute of Technology 11,685,120
AS4249 Eli Lilly and Company 11,534,592
AS3651 Sprint 9,736,960
AS237 Merit Network Inc. 9,717,760
AS20115 Charter Communications 9,377,024
AS14618 Amazon.com, Inc. 9,276,672
AS3561 Savvis 9,062,656
AS7029 Windstream Communications LLC 9,023,744
AS10796 Time Warner Cable Internet LLC 7,940,352
AS2914 NTT America, Inc. 7,333,760
AS2828 MCI Communications Services, Inc. d/b/a Verizon Business 6,907,904
AS20001 Time Warner Cable Internet LLC 6,764,544
AS3549 Level 3 Communications, Inc. 6,559,232
AS702 MCI Communications Services, Inc. d/b/a Verizon Business 6,500,864
AS1668 AOL Transit Data Network 5,807,360
AS20057 AT&T Mobility LLC 5,400,832
AS6128 Cablevision Systems Corp. 5,216,000
AS11351 Time Warner Cable Internet LLC 5,129,216
AS306 DoD Network Information Center 5,113,600
AS33363 BRIGHT HOUSE NETWORKS, LLC 5,102,592
AS11427 Time Warner Cable Internet LLC 5,026,048
AS1541 Headquarters, USAISC 4,715,776
AS11003 The Procter and Gamble Company 4,689,408
AS10455 Alcatel-Lucent 4,654,336
AS11426 Time Warner Cable Internet LLC 4,585,984
AS36351 SoftLayer Technologies Inc. 4,249,088
AS81 MCNC 3,496,960
AS6983 Earthlink, Inc. 3,488,000
AS10507 Sprint Personal Communications Systems 3,423,232
AS14962 NCR Corporation 3,360,512
AS385 754th Electronic Systems Group 3,274,240
AS12271 Time Warner Cable Internet LLC 3,254,016
AS4152 USDA 3,080,448
AS19108 Suddenlink Communications 2,853,376
AS16625 Akamai Technologies, Inc. 2,796,544
AS7132 AT&T Internet Services 2,786,560
AS768 Navy Network Information Center (NNIC) 2,774,016
AS35916 MULTACOM CORPORATION 2,709,760
AS1761 General Services Commission 2,690,048
AS15169 Google LLC 2,688,512
AS7843 Time Warner Cable Internet LLC 2,294,272
AS16591 Google Fiber Inc. 2,244,608
AS2152 California State University, Office of the Chancellor 2,148,608
AS4565 MegaPath Networks Inc. 1,799,168
AS3479 Kennesaw State University 1,780,224
AS27064 DoD Network Information Center 1,763,328
AS10695 Wal-Mart Stores, Inc. 1,704,960
AS7385 Integra Telecom, Inc. 1,679,360
AS18566 MegaPath Corporation 1,658,880
AS5998 DoD Network Information Center 1,638,400
AS210 Utah Education Network 1,575,936
AS18676 Avaya Inc. 1,507,328
AS22561 CenturyTel Internet Holdings, Inc. 1,507,328
AS18779 EGIHosting 1,467,392
AS600 OARnet 1,446,400
AS13335 Cloudflare, Inc. 1,374,720
AS3371 MCI 1,367,808
AS30036 Mediacom Communications Corp 1,350,912
AS2687 AT&T Global Network Services, LLC 1,340,416
AS158 Ericsson Network Systems, Inc. 1,325,824
AS7160 Oracle Corporation 1,244,416
AS5006 Onvoy 1,211,136
AS15003 Nobis Technology Group, LLC 1,194,496
AS6614 UNITED STATES CELLULAR TELEPHONE COMPANY (GREATER KNOXVILLE), L.P. 1,184,768
AS4010 Headquarters, USAISC 1,178,624
AS1226 California Technology Agency 1,169,152
AS109 Cisco Systems, Inc. 1,166,080
AS22284 Department of the Interior, Office of theSecretary 1,164,800
AS14061 DigitalOcean, LLC 1,154,560
AS12083 WideOpenWest Finance LLC 1,144,064
AS7155 ViaSat,Inc. 1,141,760
AS4181 TDS TELECOM 1,120,000
AS2386 AT&T Data Communications Services 1,115,392
AS72 Schlumberger Limited 1,102,848
AS7792 3M Company 1,075,712
AS6621 Hughes Network Systems 1,067,264
AS8103 Florida Department of Management Services - Technology Program 1,064,448
AS3491 PCCW Global, Inc. 1,054,720
AS46690 Southern New England Telephone Company and SNET America, Inc. 1,049,088
AS31898 Oracle Corporation 1,048,576
AS14654 Wayport, Inc. 974,848
AS11492 CABLE ONE, INC. 972,544
AS26496 GoDaddy.com, LLC 962,560
AS637 DoD Network Information Center 959,232
AS6079 RCN 952,576
AS19957 BellSouth.net Inc. 940,544
AS1906 Northrop Grumman 932,096
AS6325 Illinois Century Network 882,944
AS2379 Embarq Corporation 874,496
AS703 MCI Communications Services, Inc. d/b/a Verizon Business 871,428
AS5972 DoD Network Information Center 854,784
AS7430 Hewlett-Packard Company 829,952
AS7046 MCI Communications Services, Inc. d/b/a Verizon Business 817,920
AS157 Silicon Graphics International Corp. 807,936
AS297 National Aeronautics and Space Administration 802,048
AS36352 ColoCrossing 790,016
AS2572 University of Missouri - dba the Missouri Research and Education Network (MOREnet) 787,968
AS3354 University of Texas System 786,944
AS16586 CLEAR WIRELESS LLC 783,360
AS32392 The Endurance International Group, Inc. 770,048
AS40676 Psychz Networks 747,776
AS19773 Motorola, Inc. 734,464
AS7065 Sonoma Interconnect 731,648
AS6461 Zayo Bandwidth 706,048
AS33070 Rackspace Hosting 696,064
AS18978 Enzu Inc 689,664
AS87 Indiana University 688,384
AS31822 City University of New York 676,096
AS3737 PenTeleData Inc. 662,016
AS7726 FedEx Internet Technologies Corporation 658,432
AS497 754th Electronic Systems Group 657,152
AS3128 University of Wisconsin System 655,360
AS11232 Midcontinent Communications 652,800
AS10430 Washington State K-20 Telecommunications Network 647,936
AS2381 WiscNet 647,680
AS46606 Unified Layer 647,168
AS4193 Department of Information Services 644,352
AS33588 Charter Communications 644,096
AS6181 Cincinnati Bell Telephone Company LLC 635,136
AS20473 Choopa, LLC 614,144
AS14977 State of Wyoming Department A&I 612,608
AS395954 Leaseweb USA, Inc. 611,072
AS14265 TPx Communications 604,160
AS7011 Frontier Communications of America, Inc. 598,528
AS36375 University of Michigan 597,120
AS11404 vanoppen.biz LLC 593,152
AS2897 Georgia Technology Authority 590,080
AS7844 OASIS TECHNOLOGIES 589,824
AS17184 CBEYOND COMMUNICATIONS, LLC 582,400
AS30693 Eonix Corporation 564,992
AS8030 AT&T WorldNet 563,968
AS22192 Pennsylvania State System of Higher Education 563,712
AS6453 TATA COMMUNICATIONS (AMERICA) INC 559,360
AS6939 Hurricane Electric, Inc. 531,968
AS3598 Microsoft Corporation 528,128
AS386 754th Electronic Systems Group 525,568
AS13325 State of Michigan, DMB-CNOC 524,544
AS6071 Unisys Corporation 521,728
AS1767 Indiana Higher Education Telecommunication System 520,704
AS19994 Rackspace Hosting 511,232
AS491 754th Electronic Systems Group 509,696
AS35908 Krypt Technologies 480,768
AS10753 Level 3 Communications, Inc. 477,056
AS387 754th Electronic Systems Group 474,112
AS391 754th Electronic Systems Group 464,384
AS393406 DigitalOcean, LLC 463,104
AS46652 ServerStack, Inc. 461,824
AS62567 DigitalOcean, LLC 461,356
AS10782 Hewlett-Packard Company 460,800
AS5056 Aureon Network Services 455,680
AS8001 Net Access Corporation 449,792
AS3999 The Pennsylvania State University 442,880
AS270 National Aeronautics and Space Administration 431,872
AS27085 DoD Network Information Center 431,360
AS17 Purdue University 426,240
AS4544 ConXioN Corporation 422,144
AS27046 DoD Network Information Center 421,632
AS46887 Lightower Fiber Networks I, LLC 420,352
AS63949 Linode, LLC 420,096
AS797 AT&T Services, Inc. 411,648
AS440 754th Electronic Systems Group 411,136
AS2711 Spirit Communications 410,624
AS16657 Fibertech Networks, LLC 410,112
AS6559 State of NC - State Telecommunications Services 409,600
AS11686 Education Networks of America 408,064
AS21769 Colocation America Corporation 406,016
AS7381 SunGard Availability Services LP 405,760
AS11663 State of Utah 400,896
AS1503 Headquarters, USAISC 399,104
AS17055 University of Utah 398,592
AS6122 Iowa Communications Network 394,240
AS3136 State of WI Dept. of Administration 394,240
AS357 DoD Network Information Center 393,216
AS3372 MCI 392,960
AS11022 Alabanza, Inc. 377,856
AS1452 Headquarters, USAISC 377,344
AS1464 Headquarters, USAISC 376,320
AS8100 QuadraNet, Inc 372,736
AS1998 State of Minnesota 361,984
AS17054 CONTINENTAL BROADBAND PENNSYLVANIA, INC. 353,792
AS54489 CoreSpace, Inc. 353,024
AS17306 JAB Wireless, INC. 351,744
AS647 DoD Network Information Center 350,720
AS26577 BAE Systems Inc. 344,064
AS13649 ViaWest 338,944
AS3527 National Institutes of Health 336,128
AS32190 CDK Global, LLC 332,288
AS11363 Fujitsu America Inc. 331,776
AS6075 Lockheed Martin Corporation 331,008
AS291 ESnet 330,240
AS132 754th Electronic Systems Group 329,216
AS8 Rice University 329,216
AS6289 American Honda Motor Corporation 328,960
AS3480 Kennesaw State University 328,704
AS52 University of California, Los Angeles 328,704
AS59 University of Wisconsin Madison 328,448
AS29992 Department of Veterans Affairs 327,936
AS361 DoD Network Information Center 327,680
AS326 DoD Network Information Center 327,680
AS26662 XEROX CORPORATION 327,680
AS32 Stanford University 327,680
AS217 University of Minnesota 327,680
AS13977 FAIRPOINT COMMUNICATIONS, INC. 326,656
AS6517 Reliance Globalcom Services, Inc 322,304
AS11798 Ace Data Centers, Inc. 322,048
AS5778 Embarq Corporation 321,280
AS19165 Webpass Inc. 321,280
AS26810 U.S. Dept. of Health and Human Services 320,768
AS14340 Salesforce.com, Inc. 320,000
AS22742 Connecticut Education Network 318,976
AS32475 SingleHop, Inc. 318,464
AS19271 Peak 10 317,440
AS2688 AT&T Global Network Services, LLC 315,648
AS54600 PEG TECH INC 315,648
AS226 Los Nettos 315,208
AS21852 State Of Arkansas, Department of InformationSystems 313,088
AS27364 Armstrong Cable Services 312,320
AS18747 IFX Corporation 306,944
AS54290 Hostwinds LLC. 303,872
AS3680 Novell, Inc. 297,472
AS3064 Affinity Internet, Inc 297,216
AS557 University of Maine System 296,448
AS73 University of Washington 295,936
AS18 University of Texas at Austin 295,424
AS747 Headquarters, USAISC 294,656
AS7795 LUMOS Networks, Inc. 293,376
AS243 Harris Government Systems Sector 289,280
AS20021 HostMySite 289,024
AS7127 Southern California Edison 286,976
AS11714 Network Nebraska 286,720
AS1249 Five Colleges Network 283,904
AS683 Argonne National Lab 283,008
AS1202 National Aeronautics and Space Administration 282,880
AS1970 Texas A&M University 282,624
AS26228 DataPipe, Inc. 282,112
AS8147 Ericsson Inc. 280,320
AS3464 Alabama Supercomputer Network 279,552
AS8047 GENERAL COMMUNICATION, INC. 278,784
AS27357 Rackspace Hosting 277,504
AS23537 Micro Source 276,992
AS4185 AT&T Internet Services 275,712
AS4583 West Publishing Corporation 275,200
AS127 Jet Propulsion Laboratory 274,944
AS122 UPMC 272,896
AS7459 Grande Communications Networks, LLC 270,848
AS36444 NEXCESS.NET L.L.C. 269,312
AS409 754th Electronic Systems Group 269,312
AS16983 Conduent Business Services, LLC 269,056
AS2576 U. S. Department of Transportation 268,544
AS1843 National Aeronautics and Space Administration 267,264
AS36149 Hawaiian Telcom Services Company, Inc. 264,960
AS792 Oracle Corporation 264,960
AS19113 Duke Energy Corporation 264,704
AS6126 CA, Inc. 263,424
AS19902 Department of Administrative Services 263,424
AS68 Los Alamos National Laboratory 263,168
AS14041 University Corporation for Atmospheric Research 262,912
AS55 University of Pennsylvania 262,656
AS36384 Google LLC 262,400
AS292 ESnet 262,400
AS299 University of California, Irvine 262,400
AS4454 State of Tennessee 262,400
AS14298 Environmental Protection Agency 262,144
AS22390 XEROX CORPORATION 262,144
AS7246 Bristol-Myers Squibb Company 262,144
AS40127 Longwood Medical and Academic Area (LMA) 262,144
AS23352 Server Central Network 259,584
AS206 Computer Sciences Corporation 257,536
AS6316 PaeTec Communications, Inc. 257,024
AS25653 FortressITX 253,952
AS63008 Contina 250,112
AS8010 Digicon Corporation 249,856
AS23089 Hotwire Communications 249,344
AS11486 MCI Communications Services, Inc. d/b/a Verizon Business 248,832
AS7270 IDT Corporation 248,576
AS19817 DSL Extreme 247,296
AS6360 University of Hawaii 246,016
AS16572 AT&T Mobility LLC 245,760
AS32244 Liquid Web, L.L.C 244,992
AS46375 Sonic Telecom LLC 241,664
AS13490 Buckeye Cablevision, Inc. 241,408
AS3475 Navy Network Information Center (NNIC) 237,824
AS33330 CloudRadium L.L.C 235,008
AS46261 QuickPacket, LLC 232,960
AS16526 Birch Telecom, Inc. 232,192
AS6527 Commonwealth of Massachusetts 230,656
AS6192 University of California at Davis 229,632
AS1488 Headquarters, USAISC 229,632
AS10405 Union Pacific Railroad Company 229,376
AS395139 NewYork-Presbyterian Hospital 229,376
AS5180 DoD Network Information Center 228,608
AS21859 Zenlayer Inc 227,328
AS23148 MCI Communications Services, Inc. d/b/a Verizon Business 225,024
AS11272 C Spire Fiber 222,464
AS22552 eSited Solutions 221,696
AS20013 CyrusOne LLC 221,440
AS46573 Global Frag Networks 220,416
AS2048 State of Louisiana Office of Telecommunications Management 220,416
AS1798 State of Oregon 219,392
AS32982 U.S. Department of Energy 219,136
AS15288 Alcanet International NA 217,344
AS1742 Harvard University 215,808
AS23520 Columbus Networks USA, Inc. 213,760
AS11757 Whirlpool Corporation 212,992
AS38 University of Illinois 212,992
AS5669 Interoute USA Inc. 211,456
AS14566 Conduent Business Services, LLC 210,944
AS2055 Louisiana State University 210,688
AS14 Columbia University 208,896
AS21976 NJEDge.Net, Inc. 208,640
AS26854 New York State 208,384
AS10846 Deere & Company 205,824
AS11530 Embarq Corporation 204,800
AS1504 Headquarters, USAISC 203,520
AS23005 SWITCH, LTD 203,264
AS36850 University of North Carolina at Chapel Hill 202,752
AS25 University of California at Berkeley 202,496
AS6431 ATT LABS 202,496
AS1479 Headquarters, USAISC 202,496
AS19973 MCI Communications Services, Inc. d/b/a Verizon Business 201,984
AS22351 INTELSAT GLOBAL SERVICE CORPORATION 201,984
AS450 754th Electronic Systems Group 201,472
AS111 Boston University 201,216
AS30449 State of Arizona 201,216
AS5976 DoD Network Information Center 199,424
AS91 Rensselaer Polytechnic Institute 198,912
AS2013 PG&E 198,656
AS13541 Mentor Graphics Corporation 198,656
AS159 The Ohio State University 198,400
AS18819 Entergy Corporation 198,144
AS36291 Aventis Pharmaceuticals Inc. 198,144
AS225 University of Virginia 197,888
AS194 University Corporation for Atmospheric Research 197,888
AS1506 Headquarters, USAISC 197,888
AS4130 University of Pittsburgh 197,632
AS11442 North Carolina State University 197,632
AS26 Cornell University 197,376
AS2637 Georgia Institute of Technology 197,376
AS11719 Eaton Corporation 197,376
AS11188 LOS ANGELES COUNTY - INTERNAL SERVICESDIVISION 197,376
AS1999 U.S. House of Representatives 197,120
AS10933 ATX Telecommunications Services 197,120
AS2553 Florida State University 196,864
AS1467 Headquarters, USAISC 196,864
AS27026 networkMaryland 196,864
AS22252 The City of New York 196,608
AS6591 Intergraph Corporation 196,608
AS18852 Ashland, Inc. 196,608
AS523 Headquarters, USAISC 196,608
AS1637 Headquarters, USAISC 196,608
AS5653 University of California San Francisco 196,608
AS12079 Cellco Partnership DBA Verizon Wireless 196,608
AS1602 Headquarters, USAISC 196,608
AS3778 Temple University 196,608
AS340 DoD Network Information Center 196,608
AS3389 Ford Motor Company 196,608
AS1477 Headquarters, USAISC 196,608
AS20225 TelJet 196,352
AS13536 Tech Valley Communications 196,352
AS33491 Comcast Cable Communications, LLC 194,816
AS665 DoD Network Information Center 193,024
AS2648 NIST/U.S. Dept. of Commerce 192,768
AS7979 Servers.com, Inc. 191,488
AS36647 Yahoo 191,488
AS7859 pair Networks 188,416
AS6130 American Internet Services, LLC. 182,016
AS20278 Nexeon Technologies, Inc. 181,760
AS22576 DataPipe, Inc. 180,480
AS12129 123.Net, Inc. 177,920
AS3593 Frontier Communications of America, Inc. 177,152
AS1280 Internet Systems Consortium, Inc. 176,640
AS45 Lawrence Livermore National Laboratory 175,360
AS3701 Network for Education and Research in Oregon (NERO) 175,104
AS7349 TierPoint, LLC 174,592
AS2920 Los Angeles County Office of Education 174,336
AS1489 Headquarters, USAISC 173,312
AS62904 Eonix Corporation 172,544
AS13645 BroadbandONE, Inc. 171,008
AS33132 Fibernet Direct 171,008
AS14992 CrystalTech Web Hosting Inc. 170,752
AS1600 DoD Network Information Center 170,240
AS41 National Aeronautics and Space Administration 169,984
AS2749 Navy Network Information Center (NNIC) 169,984
AS11398 Embarq Corporation 169,472
AS11878 tzulo, inc. 169,216
AS14615 Comporium, Inc 168,960
AS14135 Navisite, Inc. 168,960
AS7393 CYBERCON, INC. 168,448
AS26347 New Dream Network, LLC 168,192
AS6221 US Cybersites, Inc 166,144
AS26101 Yahoo! 165,632
AS2900 Arizona Tri University Network 165,376
AS5078 Oklahoma Network for Education Enrichment and 165,120
AS6072 Unisys Corporation 164,864
AS53889 Micfo, LLC. 164,608
AS10921 Commonwealth of KentuckyDepartment of Information Systems 164,352
AS4983 Intel Corporation 164,096
AS2495 Kansas Research and Education Network 163,840
AS10967 The Home Depot 163,840
AS3851 Nevada System of Higher Education 163,840
AS53755 Input Output Flood LLC 161,792
AS6035 DoD Network Information Center 161,280
AS11215 Logix 161,024
AS14989 Broadview Networks, Inc. 160,512
AS22302 INOC, LLC 160,256
AS11303 MCI Communications Services, Inc. d/b/a Verizon Business 160,256
AS11776 Atlantic Broadband Finance, LLC 160,000
AS14492 DataPipe, Inc. 159,488
AS393398 Dallas Infrastructure Services, LLC 159,232
AS2044 Infinity Internet, Inc. 158,976
AS10838 Oceanic Internet 158,464
AS195 San Diego Supercomputer Center 157,952
AS7782 Alaska Communications Systems Group, Inc. 157,440
AS30361 Swiftwill, Inc. 156,672
AS3663 NetNet 155,904
AS3707 MCI Communications Services, Inc. d/b/a Verizon Business 155,904
AS6099 Alameda County Office of Education 155,648
AS32098 Transtelco Inc 153,600
AS23473 PAVLOV MEDIA INC 153,088
AS5050 Pittsburgh Supercomputing Center 152,832
AS54103 MOD Mission Critical 152,832
AS14051 Consolidated Communications, Inc. 151,552
AS1494 Headquarters, USAISC 151,296
AS103 Northwestern University 150,784
AS32440 Louisiana Board of Regents/Louisiana Optical Network Initiative (LONI) 150,784
AS1706 University of Arizona 150,272
AS1842 United States Geological Survey 150,016
AS8070 Microsoft Corporation 149,504
AS1312 Virginia Polytechnic Institute and State Univ. 148,992
AS14551 MCI Communications Services, Inc. d/b/a Verizon Business 148,736
AS7091 ViaNet Communications 148,736
AS20454 SECURED SERVERS LLC 148,736
AS30496 Colo4, LLC 148,480
AS6629 NOAA 148,480
AS10599 McKesson Corp. 148,480
AS5742 Consolidated Communications, Inc. 148,480
AS13371 Duke University 147,712
AS1491 Headquarters, USAISC 147,456
AS151 Hewlett-Packard Company 147,200
AS10437 University of Kentucky, Communication Services 146,432
AS19397 ACN 146,432
AS399 754th Electronic Systems Group 144,384
AS31863 Centrilogic, Inc. 144,384
AS6039 DoD Network Information Center 144,128
AS1585 DoD Network Information Center 143,872
AS33084 DC-Net 143,872
AS1498 Headquarters, USAISC 143,872
AS3734 Santa Clara County Office of Education 143,104
AS3614 Dell, Inc. 142,592
AS2685 AT&T Global Network Services, LLC 142,592
AS1968 University of Massachusettes 142,592
AS3456 Time Warner Cable 142,080
AS11488 BBN Technologies Corp. 141,824
AS3573 Accenture LLP 141,056
AS27 University of Maryland 140,800
AS4922 Shentel Communications, LLC 139,264
AS26554 US Signal Company, L.L.C. 139,264
AS675 Minnesota State Colleges and Universities 139,264
AS396190 Leaseweb USA, Inc. 139,264
AS3931 Logical Net Corporation 139,264
AS14381 Caterpillar, Inc. 139,008
AS1252 University of Nebraska Medical Center 139,008
AS18494 Embarq Corporation 138,752
AS29791 Voxel Dot Net, Inc. 138,496
AS11377 SendGrid, Inc. 138,496
AS6059 University of Maryland 138,496
AS26934 University of Missouri-Columbia 138,496
AS5691 The MITRE Corporation 138,496
AS17007 Alliant Techsystems Operations LLC 137,728
AS6 Bull HN Information Systems Inc. 137,728
AS10879 Unitedhealthcare 137,472
AS62943 Bluebird Network 137,472
AS88 Princeton University 137,472
AS377 Sandia National Laboratories 136,704
AS5647 Eastman Kodak Company 136,448
AS1341 Allen-Bradley Company, Inc. 136,448
AS13 Headquarters, USAISC 136,448
AS10794 Bank of America 135,936
AS32748 Steadfast 135,936
AS13333 Consolidated Communications, Inc. 135,424
AS246 754th Electronic Systems Group 135,168
AS19 Leidos, Inc. 135,168
AS20248 Take 2 Hosting, Inc. 135,168
AS771 National Aeronautics and Space Administration 135,168
AS7849 CROCKER COMMUNICATIONS 135,168
AS11273 FIRST DATA CORPORATION 134,144
AS1500 Headquarters, USAISC 134,144
AS10497 The World Bank Group 134,144
AS3724 State of Alaska 133,888
AS9 Carnegie Mellon University 133,632
AS14365 Adobe Systems Inc. 133,632
AS50 Oak Ridge National Laboratory 133,632
AS427 754th Electronic Systems Group 133,632
AS47 University of Southern California 133,376
AS1580 DoD Network Information Center 133,376
AS26658 HT 133,376
AS1778 DoD Network Information Center 133,376
AS15227 LUMOS Networks, Inc. 133,248
AS3512 Emory University 133,152
AS3582 University of Oregon 133,120
AS7212 Vanderbilt University 132,864
AS6041 DoD Network Information Center 132,608
AS3388 University of New Mexico 132,608
AS6356 Northeast Regional Data Center 132,352
AS14987 Rethem Hosting LLC 132,352
AS11857 Aegon USA, Inc. 132,352
AS3562 Sandia National Laboratories 132,352
AS20337 SUNY Institute of Technology 132,352
AS10441 CH2M HILL 132,352
AS10343 National Aeronautics and Space Administration 132,096
AS1556 DoD Network Information Center 132,096
AS1649 Headquarters, USAISC 132,096
AS1460 Headquarters, USAISC 132,096
AS11834 Drexel University 132,096
AS131 University of California, Santa Barbara 132,096
AS31 California Institute of Technology 132,096
AS3955 Compucom Systems 132,096
AS5719 SUNY at Stony Brook 131,840
AS347 DoD Network Information Center 131,840
AS13576 SOUTH DAKOTA NETWORK 131,840
AS22093 Cleveland Clinic Foundation 131,840
AS46 Rutgers University 131,840
AS2642 State of California 131,840
AS36081 State of Colorado General Government Computer 131,584
AS2025 University of Toledo 131,584
AS1451 Headquarters, USAISC 131,584
AS11596 Best Buy Co., Inc. 131,584
AS13695 American Electirc Power Co. 131,584
AS2901 Oso Grande Technologies, Inc. 131,584
AS1462 Headquarters, USAISC 131,584
AS29 Yale University 131,584
AS1254 National Aeronautics and Space Administration 131,584
AS10370 Northwest Airlines 131,584
AS5723 Johns Hopkins University 131,584
AS20478 General Mills 131,328
AS19527 Meebo, Inc. 131,328
AS156 Northeastern University 131,328
AS16831 Fujitsu Network Communications, Inc. 131,328
AS22216 Siemens Corporation 131,328
AS6200 University of Illinois at Chicago 131,328
AS11078 Brown University 131,328
AS3676 University of Iowa 131,328
AS6106 University of California, Riverside 131,328
AS33442 Zebra Technologies 131,328
AS20426 PriceWaterhouseCoopers, LLP 131,328
AS1224 National Center for Supercomputing Applications 131,200
AS5739 University of California, Santa Cruz 131,072
AS5707 The University of Texas Health Science Center at Houston 131,072
AS14017 Burlington Northern Sante Fe Railway Corp 131,072
AS331 DoD Network Information Center 131,072
AS3743 ARCELORMITTAL USA INC. 131,072
AS351 DoD Network Information Center 131,072
AS10702 Idaho National Laboratory 131,072
AS1701 National Aeronautics and Space Administration 131,072
AS6966 U.S. Department of State 131,072
AS10995 PNC Bank 131,072
AS1832 Southern Methodist University 131,072
AS3452 University of Alabama at Birmingham 131,072
AS32480 Loma Linda University Medical Center 131,072
AS341 DoD Network Information Center 131,072
AS19530 State of North Dakota, ITD 131,072
AS11872 Syracuse University 131,072
AS16988 International Paper 131,072
AS16 Lawrence Berkeley National Laboratory 131,072
AS11975 The College of William and Mary 131,072
AS18722 SUPERVALU, Inc. 131,072
AS23193 Community College of Allegheny County 131,072
AS688 Department of Interior 131,072
AS7925 West Virginia Network for Educational Telecomputing 131,072
AS555 Velocity Technology Solutions II, Inc. 131,072
AS6300 Consolidated Communications, Inc. 131,072
AS4190 Binghamton University 131,072
AS11577 Vermont Department of Information and Innovation 131,072
AS10273 Florida Power & Light Company 131,072
AS3134 U.S. Agency for International Development 131,072
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AS10837 Wells Fargo & Company 125,440
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AS12 New York University 99,072
AS20412 Clarity Telecom LLC 99,072
AS6428 CDM 98,816
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AS62 CyrusOne LLC 94,720
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AS33490 Comcast Cable Communications, LLC 84,480
AS2906 Netflix Streaming Services Inc. 84,224
AS1527 Headquarters, USAISC 84,224
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AS13567 Kimberly-Clark Corporation 74,240
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AS22299 GCR Company/GCR Online 70,912
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AS4373 Online Computer Library Center 70,656
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AS22 Navy Network Information Center (NNIC) 69,888
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AS18709 Bank of the West 68,352
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AS12217 UNITED PARCEL SERVICE 67,840
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AS77 Johns Hopkins University Applied Physics Laboratory 67,584
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AS11052 Intermountain Health Care 67,584
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AS63 Massachusetts Institute of Technology 67,584
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AS7973 Mayo Foundation for Medical Education and Research 66,048
AS3447 Embarq Corporation 66,048
AS102 National Science Foundation 66,048
AS2559 Visa International 66,048
AS15352 The Coca-Cola Company 66,048
AS3671 SLAC National Accelerator Laboratory 66,048
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AS46832 University of Missouri - dba the Missouri Research and Education Network (MOREnet) 66,048
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AS252 Headquarters, USAISC 66,048
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AS7800 Allina Health System, Inc. 65,792
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AS1484 Headquarters, USAISC 65,792
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AS30070 Hershey Chocolate & Confectionery Corporation 65,792
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AS17094 Mutual of Omaha Insurance Company 65,792
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AS4201 Oregon State University 65,792
AS14319 Furman University 65,792
AS2384 Architect of the Capitol 65,792
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AS54973 Sacred Heart University 65,536
AS4246 New Jersey Institute of Technology 65,536
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AS13548 College of Charleston 65,536
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AS13759 Wilkes University 65,536
AS10508 University of Arkansas 65,536
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AS25969 St. Louis University 65,536
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AS21798 International Truck and Engine Corp 65,536
AS54640 The Moses H. Cone Memorial Hospital 65,536
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AS32906 FACTORY MUTUAL INSURANCE COMPANY 65,536
AS10448 Villanova University 65,536
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AS53785 University of North Carolina at Greensboro 65,536
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AS3606 Connecticut College 65,536
AS16435 Fluke Electronics 65,536
AS40155 APL Limited 65,536
AS18715 New York Power Authority 65,536
AS32136 Farmingdale State College 65,536
AS1201 Old Dominion University 65,536
AS21897 Virtua Health 65,536
AS40102 Montgomery College. 65,536
AS33608 Hood College 65,536
AS53695 Southern Illinois University at Edwardsville 65,536
AS18481 BOCES Southern Westchester Lower Hudson Regional Information Center 65,536
AS29899 Geisinger System Services 65,536
AS53984 Wellstar Health System 65,536
AS19933 Buffalo State College 65,536
AS355 DoD Network Information Center 65,536
AS14348 University of Rhode Island 65,536
AS46290 MtSAC 65,536
AS19106 Andrews University 65,536
AS14981 Kirkland & Ellis LLP 65,536
AS393296 Augustana College 65,536
AS21984 Fairfax County Public Schools 65,536
AS46520 California Department of Justice 65,536
AS14890 Haynes and Boone, L.L.P. 65,536
AS10953 Exelon Corporation 65,536
AS63319 Fairleigh Dickinson University 65,536
AS25929 Millennium Pharmaceuticals, Inc. 65,536
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AS32104 Wellmont Health System 65,536
AS30679 California State Polytechnic University - Pomona 65,536
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AS36368 Oberlin College 65,536
AS23241 big planet, inc. 65,536
AS26675 Region IV Education Service Center 65,536
AS11205 City of Philadelphia 65,536
AS26087 Gardner-Webb University 65,536
AS30408 Arkansas State University 65,536
AS16595 The Toro Company 65,536
AS27616 The New School 65,536
AS26551 Sargent & Lundy Engineers 65,536
AS11231 GETTYSBURG COLLEGE 65,536
AS349 DoD Network Information Center 65,536
AS394769 University of Michigan - Flint 65,536
AS350 DoD Network Information Center 65,536
AS33281 BRIGHAM YOUNG UNIVERSITY - IDAHO 65,536
AS46543 University of Maryland at Baltimore 65,536
AS348 DoD Network Information Center 65,536
AS2496 University of Kansas 65,536
AS10561 Brandeis University 65,536
AS784 Henry M. Jackson Foundation for The Advancement of Military Medicine 65,536
AS26367 Bradley University 65,536
AS6510 Brigham Young University 65,536
AS6652 Pima Community College 65,536
AS33523 Rowan University 65,536
AS10487 Simple Network Communications, Inc 65,536
AS19464 Washington & Lee University 65,536
AS26818 Columbus Public Schools 65,536
AS16677 AutoZone Inc 65,536
AS12173 The University of Alabama 65,536
AS10867 Foothill-DeAnza Community College District 65,536
AS22834 Boston College 65,536
AS16461 The University of Texas at El Paso 65,536
AS22498 Pinellas County Government 65,536
AS55194 Bowling Green State University 65,536
AS395501 Reed College 65,536
AS30051 Santa Clara County 65,536
AS46662 Boise State University 65,536
AS358 DoD Network Information Center 65,536
AS14241 Oakland Schools 65,536
AS17311 Erie County Medical Center 65,536
AS40245 Wake Forest University 65,536
AS3681 Florida International University 65,536
AS21727 Hamline University 65,536
AS33187 Sam Houston State University 65,536
AS335 DoD Network Information Center 65,536
AS62585 Messiah College 65,536
AS1289 Colgate University 65,536
AS11318 Georgetown University 65,536
AS360 DoD Network Information Center 65,536
AS64226 MDU Resources Group, Inc. 65,536
AS6056 Colby College 65,536
AS17231 AT&T Enhanced Network Services 65,536
AS33030 College of Wooster 65,536
AS16753 BELO Corporation 65,536
AS22282 The Cosmopolitan of Las Vegas 65,536
AS36300 Pinellas County Schools 65,536
AS289 Headquarters, USAISC 65,536
AS53434 SRI International 65,536
AS14048 The University of Memphis 65,536
AS11214 University of North Florida 65,536
AS10357 James Madison University 65,536
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AS1975 PROQUEST LLC 65,536
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AS8158 LGS Innovations, LLC 65,536
AS186 The Catholic University of America 65,536
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AS20062 WASTE MANAGEMENT INC. 65,536
AS23282 Santa Barbara County 65,536
AS23122 Dakota State University 65,536
AS11809 Embry-Riddle University 65,536
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AS13598 Daimler Trucks North America LLC 65,536
AS33692 Macalester College 65,536
AS19661 Susquehanna Partners 65,536
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AS14852 DaimlerChrysler Corporation 65,536
AS337 DoD Network Information Center 65,536
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AS10849 Dallas County Community College District 65,536
AS27274 Central Michigan University 65,536
AS32229 Jackson State University 65,536
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AS10294 Coast Community College District 65,536
AS7847 NASA Goddard Space Flight Center 65,536
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AS7816 Concurrent Technologies Corporation 65,536
AS2532 Library of Congress 65,536
AS393337 University of Hartford 65,536
AS18663 University of the Pacific 65,536
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AS17234 Gustavus Adolphus College 65,536
AS15295 University of Northern Colorado 65,536
AS394003 University of Massachusetts Dartmouth 65,536
AS14946 Baptist Memorial Health Care Corporation 65,536
AS53604 University of Arkansas at Pine Bluff 65,536
AS2575 Salt River Project Agricultural Improvement & Power District 65,536
AS7136 Only Networking Inc. (ONLY2-DOM) 65,536
AS23341 Fashion Institute of Technology 65,536
AS32417 Elon University 65,536
AS40497 Bethel University 65,536
AS27402 Independence Blue Cross 65,536
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AS26539 Ahold U.S.A., Inc. 65,536
AS325 DoD Network Information Center 65,536
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AS14512 Bentley University 65,536
AS13918 City of Tucson 65,536
AS322 DoD Network Information Center 65,536
AS11866 Ellucian Company LP 65,536
AS4211 Maricopa County Government 65,536
AS3709 City of San Antonio 65,536
AS30279 Virtuzo 65,536
AS354 DoD Network Information Center 65,536
AS53585 The State Insurance Fund 65,536
AS19342 Trinity University 65,536
AS7152 American Red Cross 65,536
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AS33004 Empire State College 65,536
AS2640 Ames Laboratory 65,536
AS15323 Bellevue School District #405 65,536
AS19708 St. Luke's Episcopal Hospital 65,536
AS54177 St. John Fisher College 65,536
AS22217 Calvin College 65,536
AS21783 State of Nevada 65,536
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AS11333 CyberTrails 65,536
AS30237 Chaney Systems, Inc. 65,536
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AS25656 The University of Mississippi 65,536
AS15141 Bausch & Lomb 65,536
AS32513 BATTELLE MEMORIAL INSTITUTE 65,536
AS14529 Saint Joseph's University 65,536
AS30674 Baylor University 65,536
AS33170 Morgan State University 65,536
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AS33632 Morehead State University 65,536
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AS1736 Marquette University 65,536
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AS7867 TECH DATA CORPORATION 65,536
AS7328 The Children's Hospital of Philadelphia 65,536
AS19217 IVY Tech Community College of Indiana 65,536
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AS21680 Great-West Life Assurance Company 65,536
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AS196 The Boeing Company 65,536
AS7054 Merck and Co., Inc. 65,536
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AS25776 University of Oklahoma 65,536
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AS2003 Electric Power Research Institute 65,536
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AS3495 US Senate 65,536
AS14183 University of Arkansas at Little Rock 65,536
AS70 National Library of Medicine 65,536
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AS11417 Northern Illinois University 65,536
AS10952 East Carolina University 65,536
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AS22828 Parklawn Computer Center / DIMES HQ 65,536
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AS14655 Hampton University 65,536
AS15307 Childrens Hospital and Regional Medical Center 65,536
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AS19564 Lousiana Tech University 65,536
AS362 DoD Network Information Center 65,536
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AS205 Montclair State University 65,536
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AS22700 University of San Francisco 65,536
AS30488 Springs Industries, Inc. 65,536
AS54654 Mills College 65,536
AS3705 U.S. Government Printing Office 65,536
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AS15119 Southern Illinois University 65,536
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AS5656 accessU.S./BASENet 65,536
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AS369 DoD Network Information Center 65,536
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AS25789 Loyola Marymount University 65,536
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AS5661 UNIVERSITY OF SOUTH FLORIDA 65,536
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AS11870 ALTICOR INC 65,536
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AS338 DoD Network Information Center 65,536
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AS46476 Texas Tech University Health Sciences Center 65,536
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AS27336 Sentara Healthcare 65,536
AS2936 National Energy Research Scientific Computing Center 65,536
AS11659 University of Kansas Medical Center 65,536
AS54965 Polytechnic Institute of NYU 65,536
AS22594 University of Northern Iowa 65,536
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AS6074 Long Island University 65,536
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AS1657 University of Louisville 65,536
AS7386 Illinois State University 65,536
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AS346 DoD Network Information Center 65,536
AS36161 County of Westchester 65,536
AS31746 Franklin and Marshall College 65,536
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AS3795 Bryn Mawr College 65,536
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AS32073 Montgomery County Public Schools 65,536
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AS18791 Texas Christian University 65,536
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AS14737 Colorado Community College and Occupational Education System 65,536
AS98 The Rockefeller University 65,536
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AS18515 University of Texas at Arlington 65,536
AS32501 Tucson Unified School District #1 65,536
AS395624 General Atomics 65,536
AS22854 Catawba College 65,536
AS26462 SUNY Geneseo Computer Center 65,536
AS545 Corporation for National Research Initiatives 65,536
AS1621 Securian Financial Group, Inc. 65,536
AS26174 Saginaw Valley State University 65,536
AS18815 CITY AND COUNTY OF DENVER 65,536
AS46158 OCM BOCES 65,536
AS53352 Henry Ford Health System 65,536
AS21787 CERIDIAN 65,536
AS17052 Target Corporation 65,536
AS319 DoD Network Information Center 65,536
AS11685 Huntington National Bank 65,536
AS552 DoD Network Information Center 65,536
AS13429 Medical University of South Carolina 65,536
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AS33670 Nova University 65,536
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AS22990 University at Albany, State University of New York 65,536
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AS668 DoD Network Information Center 65,536
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AS25968 Southeastern Louisiana University 65,536
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AS14513 Des Moines Area Community College 65,536
AS1261 National Instruments Corporation 65,536
AS323 DoD Network Information Center 65,536
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AS364 DoD Network Information Center 65,536
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AS46470 Skidmore College 65,536
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AS32795 HEARST CORPORATION 61,184
AS16966 AT&T Internet Services 60,928
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AS30600 Metronet 51,968
AS3909 Qwest Communications Company, LLC 51,712
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AS40723 The University of Virginia's College at Wise 49,152
AS17307 Virtela Technology Services Incorporated 49,152
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AS4268 California Education and Research Federation Network 46,080
AS54994 QUANTIL NETWORKS INC 45,888
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AS13618 Carolina Internet, Ltd. 45,568
AS40913 Quality Technology Services Santa Clara, LLC 45,312
AS15250 USFamily.net 45,312
AS17310 BRISTOL VIRGINIA UTILITIES 45,312
AS40065 CNSERVERS LLC 45,312
AS63262 Univera Network 45,056
AS30447 InternetNamesForBusiness.com 45,056
AS14910 Embarq Corporation 44,544
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AS25977 HOUSTON COMMUNITY COLLEGE SYSTEM 42,752
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AS14671 FairPoint Communications 17,920
AS17071 UBS AG 17,920
AS394901 vXchnge Operating, LLC 17,920
AS22534 CS Technologies 17,920
AS22944 Kentucky Community and Technical College System 17,920
AS55140 Sho Me Technologies, LLC 17,920
AS1828 Unitas Global LLC 17,920
AS11383 Xand Corporation 17,920
AS22402 Nextera Communications LLC 17,664
AS3738 State Street Bank and Trust Company 17,664
AS21713 Bulloch County Rural Telephone Cooperative, Inc. 17,664
AS25844 Skadden, Arps, Slate, Meagher & Flom LLP 17,664
AS16477 ACNIELSEN 17,664
AS16557 Colo Solutions, Inc. 17,664
AS26081 Santee Cooper 17,664
AS6250 NeoNova Network Services, LLC 17,664
AS16673 Bayer Corporation 17,664
AS14904 IBM 17,664
AS32524 Grupo-SMS USA, LLC 17,664
AS4261 Intermart Inc. 17,664
AS22241 IC2NET 17,664
AS4284 Savvis 17,664
AS36790 MetroCast Communications 17,664
AS25649 AYERA TECHNOLOGIES, INC. 17,664
AS6598 Wired Waters, Inc. 17,408
AS11855 Internap Network Services Corporation 17,408
AS12281 APAC Customer Services 17,408
AS16923 New Wave Communications 17,408
AS26919 Giggle Fiber 17,408
AS30597 A.M. Best Company 17,408
AS5783 Kern County Superintendent of Schools 17,408
AS6534 Oceanic Cable 17,408
AS25612 DSL EXPRESS 17,408
AS36105 Big Bend Telephone, Inc. 17,408
AS8018 Velocity Networks, Inc. 17,408
AS15054 Northeast Texas Broadband, LLC 17,408
AS1640 Thacker-Grigsby Communications 17,408
AS39948 Phoenix Internet 17,408
AS2140 IBM Corporation 17,408
AS10962 Cerner Corporation 17,408
AS21623 Spacelink Systems 17,408
AS36103 Central Utah Telephone, Inc. 17,408
AS3745 Dell Systems Corporation 17,408

Details

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

This page shows ASNs for United States. See the global ASN report for network, IP address information and whois details for other countries.