1. All IP Ranges
  2. 166.0.0.0/8
  3. AS20057  | 166.200.0.0/14

166.200.0.0/14

AS20057  ·  AT&T Enterprises, LLC

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Summary

Country United States
Domain att.com
ASN AS20057
Registry ARIN
ID AEL-360

WHOIS Details

NetHandle:      NET-166-183-0-0-1
OrgID:          AEL-360
Parent:         NET-166-0-0-0-0
NetName:        AEL-360
NetRange:       166.183.0.0 - 166.209.255.255
NetType:        allocation
RegDate:        2025-04-01
Updated:        2025-04-01
Source:         ARIN


OrgID:          AEL-360
OrgName:        AT&T Enterprises, LLC
CanAllocate:    
Street:         208 S. Akard St.
City:           Dallas
State/Prov:     TX
Country:        US
PostalCode:     75202
RegDate:        2024-11-22
Updated:        2025-07-21
OrgAdminHandle: ZS44-ARIN
OrgTechHandle:  ICC-ARIN
OrgTechHandle:  ZS44-ARIN
OrgAbuseHandle: ABUSE7-ARIN
OrgRoutingHandle:   ROUTI59-ARIN
Source:         ARIN


POCHandle:      ZS44-ARIN
IsRole:         Y
LastName:       IPAdmin-ATT Internet Services
FirstName:      
Street:         7277 164th Ave NE
Street:         Attn: IP Management
City:           Redmond
State/Prov:     WA
Country:        US
PostalCode:     98052
RegDate:        2000-05-17
Updated:        2025-07-03
OfficePhone:    +1-888-510-5545
Mailbox:        ipadmin@att.com
Mailbox:        ipadmin@semail.att.com
Source:         ARIN


POCHandle:      ICC-ARIN
IsRole:         Y
LastName:       IP Team
FirstName:      
Street:         200 S. Laurel AVE
City:           MIDDLETOWN
State/Prov:     NJ
Country:        US
PostalCode:     07748
RegDate:        2002-09-24
Updated:        2025-07-03
OfficePhone:    +1-888-876-2382
Mailbox:        rm-ipspecialist@att.com
Source:         ARIN


POCHandle:      ABUSE7-ARIN
IsRole:         Y
LastName:       abuse
FirstName:      
Street:         2701 W 15th ST
City:           Plano
State/Prov:     TX
Country:        US
PostalCode:     75075
RegDate:        2002-08-24
Updated:        2025-07-03
OfficePhone:    +1-919-319-8167
Mailbox:        abuse@att.net
Source:         ARIN

Overlapping Ranges

BGP prefixes that are contained by 166.200.0.0/14

Range ASN Company Num of IPs
166.201.23.0/24 AS20057 AT&T Enterprises, LLC 256
166.200.220.0/24 AS20057 AT&T Enterprises, LLC 256
166.201.204.0/24 AS20057 AT&T Enterprises, LLC 256
166.200.118.0/24 AS20057 AT&T Enterprises, LLC 256
166.201.226.0/24 AS20057 AT&T Enterprises, LLC 256
166.201.225.0/24 AS20057 AT&T Enterprises, LLC 256
166.203.206.0/24 AS20057 AT&T Enterprises, LLC 256
166.200.117.0/24 AS20057 AT&T Enterprises, LLC 256
166.201.200.0/24 AS20057 AT&T Enterprises, LLC 256
166.201.215.0/24 AS20057 AT&T Enterprises, LLC 256
166.203.250.0/24 AS20057 AT&T Enterprises, LLC 256
166.201.201.0/24 AS20057 AT&T Enterprises, LLC 256
166.200.4.0/24 AS20057 AT&T Enterprises, LLC 256
166.200.112.0/24 AS20057 AT&T Enterprises, LLC 256
166.200.161.0/24 AS20057 AT&T Enterprises, LLC 256
166.201.193.0/24 AS20057 AT&T Enterprises, LLC 256
166.200.1.0/24 AS20057 AT&T Enterprises, LLC 256
166.200.119.0/24 AS20057 AT&T Enterprises, LLC 256
166.203.200.0/24 AS20057 AT&T Enterprises, LLC 256
166.201.206.0/23 AS20057 AT&T Enterprises, LLC 512
166.200.40.0/23 AS20057 AT&T Enterprises, LLC 512
166.203.248.0/23 AS20057 AT&T Enterprises, LLC 512
166.203.204.0/23 AS20057 AT&T Enterprises, LLC 512
166.201.230.0/23 AS20057 AT&T Enterprises, LLC 512
166.200.42.0/23 AS20057 AT&T Enterprises, LLC 512
166.200.186.0/23 AS20057 AT&T Enterprises, LLC 512
166.201.228.0/23 AS20057 AT&T Enterprises, LLC 512
166.200.218.0/23 AS20057 AT&T Enterprises, LLC 512
166.201.232.0/23 AS20057 AT&T Enterprises, LLC 512
166.200.36.0/23 AS20057 AT&T Enterprises, LLC 512
166.201.208.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.201.184.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.201.220.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.203.196.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.203.192.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.201.188.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.200.232.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.200.212.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.201.196.0/22 AS20057 AT&T Enterprises, LLC 1,024
166.201.176.0/21 AS20057 AT&T Enterprises, LLC 2,048
166.203.240.0/21 AS20057 AT&T Enterprises, LLC 2,048
166.203.160.0/20 AS20057 AT&T Enterprises, LLC 4,096
166.203.80.0/20 AS20057 AT&T Enterprises, LLC 4,096
166.201.32.0/20 AS20057 AT&T Enterprises, LLC 4,096
166.203.176.0/20 AS20057 AT&T Enterprises, LLC 4,096
166.203.224.0/20 AS20057 AT&T Enterprises, LLC 4,096
166.203.16.0/20 AS20057 AT&T Enterprises, LLC 4,096
166.203.48.0/20 AS20057 AT&T Enterprises, LLC 4,096
166.203.112.0/20 AS20057 AT&T Enterprises, LLC 4,096
166.203.0.0/20 AS20057 AT&T Enterprises, LLC 4,096

Nearby Ranges

BGP prefixes that overlap with 166.0.0.0/8

Range ASN Company Num of IPs
166.32.0.0/12 AS3371 Verizon Business 1,048,576
166.248.0.0/13 AS6167 Verizon Business 524,288
166.192.0.0/13 AS7018 AT&T Enterprises, LLC 524,288
166.148.0.0/14 AS6167 Verizon Business 262,144
166.132.0.0/14 AS20057 AT&T Enterprises, LLC 262,144
166.140.0.0/14 AS6167 Verizon Business 262,144
166.164.0.0/14 AS6167 Verizon Business 262,144
166.152.0.0/14 AS6167 Verizon Business 262,144
166.128.0.0/14 AS20057 AT&T Enterprises, LLC 262,144
166.226.0.0/15 AS6614 USCC Services, LLC 131,072
166.168.0.0/15 AS6167 Verizon Business 131,072
166.246.0.0/15 AS6167 Verizon Business 131,072
166.156.0.0/15 AS6167 Verizon Business 131,072
166.144.0.0/15 AS6167 Verizon Business 131,072
166.164.0.0/15 AS6167 Verizon Business 131,072
166.134.0.0/15 AS20057 AT&T Enterprises, LLC 131,072
166.152.0.0/15 AS6167 Verizon Business 131,072
166.166.0.0/15 AS6167 Verizon Business 131,072
166.224.0.0/15 AS6614 USCC Services, LLC 131,072
166.2.0.0/15 AS4152 USDA 131,072
166.4.0.0/15 AS4152 USDA 131,072
166.6.0.0/15 AS4152 USDA 131,072
166.212.0.0/16 AS20057 AT&T Enterprises, LLC 65,536
166.82.0.0/16 AS7029 Windstream Communications LLC 65,536
166.143.0.0/16 AS6167 Verizon Business 65,536
166.131.0.0/16 AS20057 AT&T Enterprises, LLC 65,536
166.236.0.0/16 AS6614 USCC Services, LLC 65,536
166.205.0.0/16 AS7018 AT&T Enterprises, LLC 65,536
166.170.0.0/16 AS20057 AT&T Enterprises, LLC 65,536
166.104.0.0/16 AS9321 Hanyang University 65,536
166.94.0.0/16 AS3926 Fairfax County Government 65,536
166.129.0.0/16 AS20057 AT&T Enterprises, LLC 65,536
166.166.0.0/16 AS22394 Verizon Business 65,536
166.164.0.0/16 AS22394 Verizon Business 65,536
166.145.0.0/16 AS6167 Verizon Business 65,536
166.70.0.0/16 AS6315 XMission, L.C. 65,536
166.19.0.0/16 AS206 CoreWeave, Inc 65,536
166.168.0.0/16 AS22394 Verizon Business 65,536
166.181.0.0/16 AS6614 USCC Services, LLC 65,536
166.50.0.0/16 AS3371 Verizon Business 65,536
166.20.0.0/16 AS243 L3Harris Technologies, Inc. 65,536
166.111.0.0/16 AS4538 Tsinghua University 65,536
166.202.0.0/16 AS20057 AT&T Enterprises, LLC 65,536
166.93.0.0/16 AS26914 Synoptek, LLC 65,536
166.182.0.0/16 AS6614 USCC Services, LLC 65,536
166.241.0.0/16 AS6167 Verizon Business 65,536
166.89.0.0/16 AS13918 City of Tucson 65,536
166.137.0.0/16 AS20057 AT&T Enterprises, LLC 65,536
166.238.0.0/16 AS26611 COMUNICACIÓN CELULAR S.A. COMCEL S.A. 65,536
166.128.0.0/16 AS20057 AT&T Enterprises, LLC 65,536

Hosted domains

There are 25 domain names hosted across 7 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
166.203.179.56 tulip-tree.com 4
166.203.177.190 rpfesler.com 1
166.202.233.230 giuliapenalty.it 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity
Read more

Pingable IPs

4,580 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
166.203.101.41 AS20057 AT&T Enterprises, LLC 25.89ms from Kansas City, US
166.203.167.9 AS20057 AT&T Enterprises, LLC 25.20ms from Kansas City, US
166.201.193.28 AS20057 AT&T Enterprises, LLC 39.63ms from San Jose, US
166.203.190.88 AS20057 AT&T Enterprises, LLC 19.06ms from Dallas, US
166.203.189.224 AS20057 AT&T Enterprises, LLC 22.97ms from Houston, US
166.203.204.12 AS20057 AT&T Enterprises, LLC 15.97ms from Houston, US
166.201.201.5 AS20057 AT&T Enterprises, LLC 26.92ms from Atlanta, US
166.203.185.122 AS20057 AT&T Enterprises, LLC 20.31ms from Houston, US
166.203.81.7 AS20057 AT&T Enterprises, LLC 2.90ms from Ashburn, US
166.203.199.162 AS20057 AT&T Enterprises, LLC 23.23ms from Dallas, US
166.203.181.88 AS20057 AT&T Enterprises, LLC 16.63ms from Houston, US
166.203.202.162 AS20057 AT&T Enterprises, LLC 18.21ms from Houston, US
166.201.231.29 AS20057 AT&T Enterprises, LLC 43.69ms from Houston, US
166.201.188.65 AS20057 AT&T Enterprises, LLC 26.82ms from San Jose, US
166.203.187.44 AS20057 AT&T Enterprises, LLC 22.01ms from Houston, US
166.201.196.1 AS20057 AT&T Enterprises, LLC 27.91ms from San Jose, US
166.203.233.18 AS20057 AT&T Enterprises, LLC 83.17ms from San Jose, US
166.203.227.55 AS20057 AT&T Enterprises, LLC 52.18ms from San Jose, US
166.201.210.124 AS20057 AT&T Enterprises, LLC 30.96ms from San Jose, US
166.201.189.86 AS20057 AT&T Enterprises, LLC 22.20ms from San Jose, US
166.203.225.104 AS20057 AT&T Enterprises, LLC 80.99ms from Santa Clara, US
166.203.255.32 AS20057 AT&T Enterprises, LLC 30.91ms from Houston, US
166.203.179.214 AS20057 AT&T Enterprises, LLC 24.04ms from Greenwood Village, US
166.201.230.24 AS20057 AT&T Enterprises, LLC 23.18ms from Houston, US
166.201.209.57 AS20057 AT&T Enterprises, LLC 28.48ms from San Jose, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
93.58.89.110 AS12874 Fastweb SpA 17.07ms from Arezzo, IT
96.86.24.94 AS7922 Comcast Cable Communications, LLC 7.69ms from Ashburn, US
172.190.164.94 AS8075 Microsoft Corporation 0.41ms from Ashburn, US
62.10.9.14 AS8070 Microsoft Corporation 0.67ms from Boydton, US
190.231.98.126 AS7303 Telecom Argentina S.A. 1.15ms from Buenos Aires, AR
5.58.148.14 AS16223 MAXNET TELECOM, LTD 5.46ms from Kyiv, UA
54.204.218.254 AS14618 Amazon.com, Inc. 0.18ms from Reston, US
126.237.171.46 AS17676 SoftBank Corp. 3.40ms from Tokyo, JP
108.162.73.222 AS7992 Cogeco Connexion Inc. 7.28ms from Toronto, CA
109.176.250.190 AS47692 Nessus GmbH 0.48ms from Vienna, AT
203.154.29.254 AS4618 Internet Thailand Company Limited 0.64ms from Bangkok, TH
139.199.118.174 AS45090 Shenzhen Tencent Computer Systems Company Limited 4.60ms from Beijing, CN
109.58.146.62 AS44034 Hi3G Access AB 7.33ms from Copenhagen, DK
156.0.231.238 AS328220 Altron Nexus (Pty) Ltd 0.09ms from Johannesburg, ZA
207.23.171.254 AS11105 Simon Fraser University 4.61ms from Seattle, US
209.151.160.30 AS22418 Cologuard 0.75ms from Secaucus, US
92.131.179.158 AS3215 Orange S.A. 14.13ms from Tours, FR
221.221.65.238 AS4808 China Unicom Beijing Province Network 7.06ms from Beijing, CN
60.28.183.254 AS4837 CHINA UNICOM China169 Backbone 7.89ms from Beijing, CN
75.243.228.254 AS6167 Verizon Business 19.84ms from Chicago, US
107.195.130.158 AS7018 AT&T Enterprises, LLC 3.10ms from Chicago, US
86.142.71.206 AS2856 British Telecommunications PLC 5.68ms from London, GB
185.108.203.254 AS29081 WVNET Information und Kommunikation GmbH 0.36ms from Vienna, AT
81.16.203.30 AS57389 ZNET Telekom Zrt 3.31ms from Budapest, HU
113.206.36.30 AS4837 CHINA UNICOM China169 Backbone 5.71ms from Chongqing, CN

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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