Autonomous System details

AS21508

Comcast Cable Communications, LLC  ·  comcast.com

United States

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AS21508 – Comcast Cable Communications, LLC

Field Value
Country United States
Website comcast.com
Hosted domains 10
IPv4 addresses 71,424
IPv6 addresses 79,789,104,094,565,525,530,607,616
ASN type Business
Registry arin
Allocated 25 years ago on May 16, 2001
Updated 5 years ago on Jan 25, 2021

IP Ranges

Netblock Company Num of IPs
141.104.0.0/16 Virginia Department of Education 65,536
50.219.12.0/22 Comcast Cable Communications, LLC 1,024
198.90.112.0/22 WhiteSky Communications, LLC. 1,024
50.204.101.0/24 Comcast Cable Communications, LLC 256
50.205.217.0/24 Comcast Cable Communications, LLC 256
50.216.229.0/24 Comcast Cable Communications, LLC 256
50.217.1.0/24 Comcast Cable Communications, LLC 256
50.217.207.0/24 Comcast Cable Communications, LLC 256
50.218.47.0/24 Comcast Cable Communications, LLC 256
50.228.113.0/24 Comcast Cable Communications, LLC 256
50.229.113.0/24 Comcast Cable Communications, LLC 256
50.229.114.0/24 Comcast Cable Communications, LLC 256
50.235.34.0/24 Comcast Cable Communications, LLC 256
157.240.147.0/24 Facebook, Inc. 256
157.240.148.0/24 Facebook, Inc. 256
173.242.174.0/24 County of Henrico 256
204.194.47.0/24 Va. Dept. of Rehabilitative Services 256
205.223.19.0/24 Virginia State Lottery Department 256

Netblock Company
2001:559:8a::/48 Comcast Cable Communications, LLC
2001:559:c0::/48 Comcast Cable Communications, LLC
2001:559:f7::/48 Comcast Cable Communications, LLC
2001:559:220::/48 Comcast Cable Communications, LLC
2001:559:243::/48 Comcast Cable Communications, LLC
2001:559:280::/48 Comcast Cable Communications, LLC
2001:559:37d::/48 Comcast Cable Communications, LLC
2001:559:3ac::/48 Comcast Cable Communications, LLC
2001:559:3b9::/48 Comcast Cable Communications, LLC
2001:559:3c8::/48 Comcast Cable Communications, LLC
2001:559:40a::/48 Comcast Cable Communications, LLC
2001:559:49a::/48 Comcast Cable Communications, LLC
2001:559:49b::/48 Comcast Cable Communications, LLC
2001:559:53c::/48 Comcast Cable Communications, LLC
2001:559:5c9::/48 Comcast Cable Communications, LLC
2001:559:5db::/48 Comcast Cable Communications, LLC
2001:559:72b::/48 Comcast Cable Communications, LLC
2001:559:73c::/48 Comcast Cable Communications, LLC
2001:559:788::/48 Comcast Cable Communications, LLC
2001:559:78a::/48 Comcast Cable Communications, LLC
2001:559:79d::/48 Comcast Cable Communications, LLC
2001:559:79e::/48 Comcast Cable Communications, LLC
2001:559:7a7::/48 Comcast Cable Communications, LLC
2001:559:7db::/48 Comcast Cable Communications, LLC
2001:559:804c::/48 Comcast Cable Communications, LLC
2001:559:81bf::/48 Comcast Cable Communications, LLC
2001:559:81d7::/48 Comcast Cable Communications, LLC
2001:559:81d8::/48 Comcast Cable Communications, LLC
2001:559:8201::/48 Comcast Cable Communications, LLC
2001:559:82fd::/48 Comcast Cable Communications, LLC
2001:559:833e::/48 Comcast Cable Communications, LLC
2001:559:8416::/48 Comcast Cable Communications, LLC
2001:559:841c::/48 Comcast Cable Communications, LLC
2001:559:8445::/48 Comcast Cable Communications, LLC
2001:559:84a7::/48 Comcast Cable Communications, LLC
2001:559:8535::/48 Comcast Cable Communications, LLC
2001:559:85c1::/48 Comcast Cable Communications, LLC
2001:559:85ff::/48 Comcast Cable Communications, LLC
2001:559:8604::/48 Comcast Cable Communications, LLC
2001:559:871a::/48 Comcast Cable Communications, LLC
2001:559:875f::/48 Comcast Cable Communications, LLC
2001:559:8773::/48 Comcast Cable Communications, LLC
2001:559:87b2::/48 Comcast Cable Communications, LLC
2001:559:c071::/48 Comcast Cable Communications, LLC
2001:559:c0f6::/48 Comcast Cable Communications, LLC
2001:559:c0f7::/48 Comcast Cable Communications, LLC
2001:559:c0fa::/48 Comcast Cable Communications, LLC
2001:559:c10a::/48 Comcast Cable Communications, LLC
2001:559:c174::/48 Comcast Cable Communications, LLC
2001:559:c1a5::/48 Comcast Cable Communications, LLC
2001:559:c1ca::/48 Comcast Cable Communications, LLC
2001:559:c28f::/48 Comcast Cable Communications, LLC
2001:559:c290::/48 Comcast Cable Communications, LLC
2001:559:c2a7::/48 Comcast Cable Communications, LLC
2001:559:c344::/48 Comcast Cable Communications, LLC
2001:559:c3e9::/48 Comcast Cable Communications, LLC
2001:559:c458::/48 Comcast Cable Communications, LLC
2001:559:c45f::/48 Comcast Cable Communications, LLC
2001:559:c460::/48 Comcast Cable Communications, LLC
2001:559:c495::/48 Comcast Cable Communications, LLC
2001:559:c4c8::/48 Comcast Cable Communications, LLC
2001:559:c4c9::/48 Comcast Cable Communications, LLC
2001:559:c4db::/48 Comcast Cable Communications, LLC
2001:559:c4f6::/48 Comcast Cable Communications, LLC
2001:559:c515::/48 Comcast Cable Communications, LLC
2001:559:c538::/48 Comcast Cable Communications, LLC

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WHOIS Details

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                                                ASHandle:       AS21508
                                                OrgID:          AS21508
                                                ASName:         AS21508
                                                ASNumber:       AS21508
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 10 domain names hosted across 7 IP addresses on this ASN.

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IP Address Domain Domains on this IP
50.216.229.251 ██████████ 1
50.205.217.50 ██████████ 1
50.204.101.60 ██████████ 1
141.104.145.20 ██████████ 1
50.204.101.61 ██████████ 1
50.235.34.25 ██████████ 1
173.242.174.203 ██████████ 1

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Peers

There are 48 peers for this ASN.

Peers Name
AS10794 Bank of America, National Association
AS11679 Stihl Inc.
AS11739 Digital Fortress, Inc.
AS13335 Cloudflare, Inc.
AS14583 Virginia Information Technologies Agency (VITA)
AS15173 Newmarket Corporation
AS15297 EPLUS, Inc.
AS17381 Williams-Sonoma
AS18773 County of Henrico
AS19404 Quest
AS19923 Shenandoah University
AS2134 Santander Global Technology and Operations, S.L.
AS22274 Standard Motor Products, Inc
AS23209 Virginia Housing Development Authority
AS27326 VCU HEALTH SYSTEM AUTHORITY
AS27341 Gannet Fleming, Inc.
AS30299 THE MARTIN AGENCY
AS32540 HP Hood
AS36040 Google LLC
AS36244 Shenandoah Valley Electric Cooperative
AS36364 Mary Washington Hospital, Inc.
AS393415 LITTLER MENDELSON, P.C.
AS393591 Gamewood Technology Group, Inc.
AS393613 Virginia Credit Union, Inc.
AS394058 Telos Corporation
AS394276 TurnAround Factor, Inc.
AS395441 EdgeConneX, INC
AS395527 VSU_AS395527
AS395772 Augusta Health Care, Inc
AS396083 Framatome Inc.
AS396452 Loudoun Water
AS397039 WorldStrides
AS397190 WSP
AS397483 UNIVERSAL HEALTH SERVICES
AS398475 Drilling Info Inc.
AS399099 petersburg city public schools
AS399232 Seton Home Study School
AS399607 Louisa County Public Schools
AS399938 Berkshire Hathaway Energy Company
AS400114 Apogee Telecom Inc.
AS40641 MGW Telephone Company, Inc.
AS46643 Virginia College Savings Plan
AS54219 Matthews International Corporation
AS54391 Crutchfield New Media LLC
AS54883 City of Richmond, Virginia
AS62971 County of Chesterfield
AS63468 Infinitt North America, Inc.
AS7922 Comcast Cable Communications, LLC
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ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams Name
AS7922 Comcast Cable Communications, LLC
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ASN API & Database

Downstreams

There are 46 downstreams for this ASN.

Downstreams Name
AS10794 Bank of America, National Association
AS11679 Stihl Inc.
AS11739 Digital Fortress, Inc.
AS13335 Cloudflare, Inc.
AS14583 Virginia Information Technologies Agency (VITA)
AS15173 Newmarket Corporation
AS15297 EPLUS, Inc.
AS17381 Williams-Sonoma
AS18773 County of Henrico
AS19404 Quest
AS19923 Shenandoah University
AS2134 Santander Global Technology and Operations, S.L.
AS22274 Standard Motor Products, Inc
AS23209 Virginia Housing Development Authority
AS27326 VCU HEALTH SYSTEM AUTHORITY
AS27341 Gannet Fleming, Inc.
AS30299 THE MARTIN AGENCY
AS32540 HP Hood
AS36040 Google LLC
AS36244 Shenandoah Valley Electric Cooperative
AS36364 Mary Washington Hospital, Inc.
AS393415 LITTLER MENDELSON, P.C.
AS393591 Gamewood Technology Group, Inc.
AS393613 Virginia Credit Union, Inc.
AS394058 Telos Corporation
AS394276 TurnAround Factor, Inc.
AS395441 EdgeConneX, INC
AS395527 VSU_AS395527
AS395772 Augusta Health Care, Inc
AS396083 Framatome Inc.
AS396452 Loudoun Water
AS397039 WorldStrides
AS397190 WSP
AS397483 UNIVERSAL HEALTH SERVICES
AS398475 Drilling Info Inc.
AS399099 petersburg city public schools
AS399232 Seton Home Study School
AS399607 Louisa County Public Schools
AS400114 Apogee Telecom Inc.
AS40641 MGW Telephone Company, Inc.
AS46643 Virginia College Savings Plan
AS54219 Matthews International Corporation
AS54391 Crutchfield New Media LLC
AS54883 City of Richmond, Virginia
AS62971 County of Chesterfield
AS63468 Infinitt North America, Inc.
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API & Database

Pingable IPs

18 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
198.90.112.6 AS21508 Comcast Cable Communications, LLC 3.07ms from Ashburn, US
173.242.174.1 AS21508 Comcast Cable Communications, LLC 5.13ms from Ashburn, US
50.204.101.75 AS21508 Comcast Cable Communications, LLC 3.65ms from Ashburn, US
50.205.217.1 AS21508 Comcast Cable Communications, LLC 5.02ms from Ashburn, US
205.223.19.19 AS21508 Comcast Cable Communications, LLC 5.09ms from Ashburn, US
50.216.229.247 AS21508 Comcast Cable Communications, LLC 3.00ms from Ashburn, US
50.219.13.30 AS21508 Comcast Cable Communications, LLC 9.66ms from Ashburn, US
2001:559:49b:1f07:dead:beef:123:157 AS21508 Comcast Cable Communications, LLC 6.25ms from Ashburn, US
50.235.34.2 AS21508 Comcast Cable Communications, LLC 11.73ms from Atlanta, US
50.218.47.1 AS21508 Comcast Cable Communications, LLC 12.54ms from Atlanta, US
50.217.207.4 AS21508 Comcast Cable Communications, LLC 8.18ms from Ashburn, US
50.217.1.1 AS21508 Comcast Cable Communications, LLC 3.51ms from Ashburn, US
50.228.113.1 AS21508 Comcast Cable Communications, LLC 3.76ms from Ashburn, US
50.229.113.2 AS21508 Comcast Cable Communications, LLC 5.81ms from Ashburn, US
2001:559:c290:5::941 AS21508 Comcast Cable Communications, LLC 13.34ms from Atlanta, US
157.240.147.14 AS21508 Comcast Cable Communications, LLC 11.56ms from Atlanta, US
50.219.12.41 AS21508 Comcast Cable Communications, LLC 6.78ms from Ashburn, US
157.240.148.1 AS21508 Comcast Cable Communications, LLC 4.53ms from Ashburn, 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
54.196.143.180 AS14618 Amazon.com, Inc. 0.52ms from Ashburn, US
18.18.242.20 AS3 Massachusetts Institute of Technology 0.46ms from Boston, US
36.135.56.36 AS134810 China Mobile Group JiLin communications corporation 4.24ms from Changchun, CN
4.245.141.228 AS8075 Microsoft Corporation 0.21ms from Dublin, IE
87.121.93.52 AS134697 Launtel 0.70ms from Melbourne, AU
81.112.105.100 AS3269 Telecom Italia S.p.A. 2.56ms from Milan, IT
88.120.203.212 AS12322 Free SAS 11.12ms from Paris, FR
182.40.221.180 AS136195 Qingdao, Shandong Province, P.R.China. 1.34ms from Qingdao, CN
143.225.93.212 AS137 Consortium GARR 4.22ms from Rome, IT
73.93.233.244 AS7922 Comcast Cable Communications, LLC 5.34ms from San Jose, US
122.201.111.4 AS38719 Dreamscape Networks Limited 0.21ms from Sydney, AU
104.17.144.68 AS13335 Cloudflare, Inc. 0.11ms from Wrocław, PL
111.172.227.228 AS138982 Hubei Jiangxia IDC 1.77ms from Wuhan, CN
171.14.0.68 AS4134 CHINANET-BACKBONE 8.69ms from Zhengzhou, CN
134.147.42.20 AS29484 Ruhr-Universitaet Bochum 4.69ms from Amsterdam, NL
148.78.241.36 AS16811 SageNet LLC 0.56ms from Atlanta, US
204.111.136.132 AS4922 Shenandoah Cable Television LLC 3.06ms from Berkeley Springs, US
78.28.131.116 AS43752 Ministry of Science and Technology Development and Higher Education 16.90ms from Budapest, HU
135.8.129.36 AS18676 Avaya LLC 2.35ms from Dallas, US
149.19.43.132 AS396253 iboss,inc 1.38ms from Dallas, US
103.109.97.4 AS134734 Velocity Networks Limited 0.45ms from Dhaka, BD
27.153.233.20 AS4134 CHINANET-BACKBONE 4.47ms from Fuzhou, CN
45.124.79.100 AS55991 CNNIC ASN block 4.87ms from Hangzhou, CN
113.188.59.228 AS45899 VNPT Corp 4.70ms from Ho Chi Minh City, VN
41.22.171.84 AS29975 Vodacom 15.81ms from Johannesburg, ZA

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f2 -m13 141.104.200.184
traceroute to 141.104.200.184 (141.104.200.184): 13 hops max, 52 byte packets
3 *
4 [AS6453] 66.110.59.250 0.907 ms
5 [AS7922] 96.110.34.161 46.804 ms
6 [AS7922] 96.110.43.194 56.665 ms
7 [AS7922] 68.86.172.250 56.816 ms
8 [AS7922] 96.110.203.22 57.036 ms
9 [AS7922] 96.110.203.25 63.283 ms
10 [AS7922] 96.110.203.58 57.585 ms
11 *
12 *
13 *
Measurement taken from IPinfo ProbeNet in Los Angeles, US
On

Related Networks

What is an ASN?

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.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS21508 at robtex.

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