AS number 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 6
Number of IPv4 71,936
Number of IPv6 82,206,955,733,794,783,880,019,968
ASN type Business
Registry arin
Allocated 24 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
198.90.112.0/22 WhiteSky Communications, LLC. 1,024
50.219.12.0/22 Comcast Cable Communications, LLC 1,024
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
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
50.220.111.0/24 Custom Computers 256
50.227.24.0/24 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

Netblock Company
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
2001:559:4b6::/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
2001:559:720::/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
2001:559:8a::/48 Comcast Cable Communications, LLC
2001:559:c0::/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
2001:559:f7::/48 Comcast Cable Communications, LLC

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IP Ranges API

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 6 domain names hosted across 7 IP addresses on this ASN.

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IP Address Domain Domains on this IP
50.235.34.25 ██████████ 1
173.242.174.203 ██████████ 1
50.204.101.60 ██████████ 1
50.216.229.251 ██████████ 1
50.204.101.61 ██████████ 1
50.205.217.50 ██████████ 1
141.104.145.20 ██████████ 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.
AS13952 New College Institute
AS14583 Virginia Information Technologies Agency (VITA)
AS15173 Newmarket Corporation
AS15297 EPLUS, Inc.
AS17381 Williams-Sonoma
AS18773 County of Henrico
AS19923 Shenandoah University
AS20332 Winchester Wireless
AS2134 Santander Global Technology, S.L.U
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
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.
AS40485 SANDY SPRING BANK
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
Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.
ASN API ASN Database Download

Upstreams

There is 1 peer for this ASN.

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

Downstreams

There are 47 downstreams for this ASN.

Downstreams Name
AS10794 Bank of America, National Association
AS11679 Stihl Inc.
AS11739 Digital Fortress, Inc.
AS13335 Cloudflare, Inc.
AS13952 New College Institute
AS14583 Virginia Information Technologies Agency (VITA)
AS15173 Newmarket Corporation
AS15297 EPLUS, Inc.
AS17381 Williams-Sonoma
AS18773 County of Henrico
AS19923 Shenandoah University
AS20332 Winchester Wireless
AS2134 Santander Global Technology, S.L.U
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
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.
AS40485 SANDY SPRING BANK
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 ASN Database Download

Pingable IPs

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

IP Address ASN Details
198.90.112.1 AS21508 Comcast Cable Communications, LLC 2.97ms from Ashburn, US
205.223.19.19 AS21508 Comcast Cable Communications, LLC 5.02ms from Ashburn, US
173.242.174.1 AS21508 Comcast Cable Communications, LLC 5.05ms from Ashburn, US
50.228.113.1 AS21508 Comcast Cable Communications, LLC 3.74ms from Ashburn, US
50.229.113.2 AS21508 Comcast Cable Communications, LLC 5.83ms from Ashburn, US
50.204.101.75 AS21508 Comcast Cable Communications, LLC 3.85ms from Ashburn, US
50.216.229.247 AS21508 Comcast Cable Communications, LLC 2.92ms from Ashburn, US
50.235.34.255 AS21508 Comcast Cable Communications, LLC 11.08ms from Ashburn, US
50.217.1.1 AS21508 Comcast Cable Communications, LLC 3.52ms from Ashburn, US
50.217.207.4 AS21508 Comcast Cable Communications, LLC 8.17ms from Ashburn, US
50.219.13.63 AS21508 Comcast Cable Communications, LLC 9.81ms from Ashburn, US
157.240.147.7 AS21508 Comcast Cable Communications, LLC 11.59ms from Atlanta, US
50.219.12.43 AS21508 Comcast Cable Communications, LLC 6.56ms from Ashburn, US
50.205.217.1 AS21508 Comcast Cable Communications, LLC 5.02ms from Ashburn, US
50.218.47.1 AS21508 Comcast Cable Communications, LLC 12.58ms from Atlanta, US
157.240.148.43 AS21508 Comcast Cable Communications, LLC 4.42ms from Ashburn, US
2001:559:49b:1f07:dead:beef:123:157 AS21508 Comcast Cable Communications, LLC 6.13ms from Ashburn, US
2001:559:c290:5::941 AS21508 Comcast Cable Communications, LLC 13.36ms from Atlanta, 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
20.228.136.164 AS8075 Microsoft Corporation 0.44ms from Ashburn, US
124.81.188.180 AS136907 HUAWEI CLOUDS 2.06ms from Bangkok, TH
93.206.0.4 AS3320 Deutsche Telekom AG 6.18ms from Frankfurt am Main, DE
88.241.126.68 AS9121 Turk Telekomunikasyon Anonim Sirketi 2.97ms from Istanbul, TR
86.161.232.244 AS2856 British Telecommunications PLC 1.93ms from London, GB
176.122.141.4 AS25820 IT7 Networks Inc 0.23ms from Los Angeles, US
73.198.189.228 AS7922 Comcast Cable Communications, LLC 6.79ms from New York City, US
187.126.252.68 AS7738 V tal 7.35ms from Osasco, BR
204.156.179.4 AS17018 Quality Technology Services, LLC 3.70ms from San Jose, US
38.94.66.20 AS28409 ENI NETWORKS SAPI de CV 3.48ms from Santiago de Queretaro, MX
36.39.22.196 AS17839 LG HelloVision Corp. 1.82ms from Seoul, KR
193.241.18.36 AS9201 Swedish Armed Forces 2.35ms from Stockholm, SE
172.207.95.84 AS8075 Microsoft Corporation 0.21ms from Tokyo, JP
40.143.4.196 AS17378 TierPoint, LLC 3.93ms from Boston, US
108.59.177.244 AS53610 Metro Communications Company, Inc. 2.50ms from Chicago, US
43.129.183.228 AS132203 Tencent Building, Kejizhongyi Avenue 0.46ms from Hong Kong, HK
154.212.103.244 AS134548 DXTL Tseung Kwan O Service 0.72ms from Hong Kong, HK
84.66.117.36 AS5378 Vodafone Limited 7.92ms from Manchester, GB
81.119.71.52 AS3269 Telecom Italia S.p.A. 5.30ms from Milan, IT
114.100.20.164 AS4134 CHINANET-BACKBONE 9.12ms from Nanchang, CN
220.106.106.36 AS4713 NTT Communications Corporation 5.22ms from Osaka, JP
193.3.243.4 AS209903 Conscia Norge AS 1.92ms from Oslo, NO
78.27.74.244 AS16086 DNA Oyj 0.73ms from Oulu, FI
201.225.60.132 AS11556 Cable & Wireless Panama 0.97ms from Panama, PA
88.180.195.100 AS12322 Free SAS 1.93ms from Paris, FR

Traceroute

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

$
traceroute -a -n -q1 -m11 141.104.64.153
traceroute to 141.104.64.153 (141.104.64.153): 11 hops max, 52 byte packets
2 [AS7922] 96.87.11.173 7.038 ms
3 [AS7922] 96.110.34.173 48.371 ms
4 [AS7922] 96.110.43.206 58.155 ms
5 [AS7922] 68.86.172.250 59.939 ms
6 [AS7922] 96.110.203.22 59.235 ms
7 [AS7922] 96.110.203.25 59.246 ms
8 [AS7922] 96.110.203.58 59.538 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Las Vegas, 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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