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
50.204.101.61 ██████████ 1
141.104.145.20 ██████████ 1
173.242.174.203 ██████████ 1
50.204.101.60 ██████████ 1
50.235.34.25 ██████████ 1
50.205.217.50 ██████████ 1
50.216.229.251 ██████████ 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
50.216.229.1 AS21508 Comcast Cable Communications, LLC 2.93ms from Ashburn, US
50.218.47.2 AS21508 Comcast Cable Communications, LLC 12.56ms from Atlanta, US
157.240.148.43 AS21508 Comcast Cable Communications, LLC 4.42ms from Ashburn, US
2001:559:c290:5::946 AS21508 Comcast Cable Communications, LLC 13.36ms from Atlanta, US
205.223.19.19 AS21508 Comcast Cable Communications, LLC 5.03ms from Ashburn, US
50.204.101.75 AS21508 Comcast Cable Communications, LLC 3.83ms from Ashburn, US
198.90.112.1 AS21508 Comcast Cable Communications, LLC 2.96ms from Ashburn, US
50.219.12.43 AS21508 Comcast Cable Communications, LLC 6.61ms from Ashburn, US
50.217.207.4 AS21508 Comcast Cable Communications, LLC 8.21ms from Ashburn, US
50.205.217.248 AS21508 Comcast Cable Communications, LLC 5.01ms from Ashburn, US
50.217.1.1 AS21508 Comcast Cable Communications, LLC 3.54ms from Ashburn, US
50.219.13.30 AS21508 Comcast Cable Communications, LLC 9.57ms from Ashburn, US
50.228.113.1 AS21508 Comcast Cable Communications, LLC 3.75ms from Ashburn, US
173.242.174.1 AS21508 Comcast Cable Communications, LLC 5.08ms from Ashburn, US
50.229.113.2 AS21508 Comcast Cable Communications, LLC 5.83ms from Ashburn, US
50.235.34.0 AS21508 Comcast Cable Communications, LLC 11.71ms from Atlanta, US
2001:559:49b:1f07:dead:beef:123:157 AS21508 Comcast Cable Communications, LLC 6.28ms from Ashburn, US
157.240.147.32 AS21508 Comcast Cable Communications, LLC 11.60ms 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
106.87.58.132 AS4134 CHINANET-BACKBONE 10.98ms from Chongqing, CN
34.60.171.228 AS396982 Google LLC 0.12ms from Council Bluffs, US
106.215.103.4 AS24560 Bharti Airtel Ltd., Telemedia Services 9.46ms from Delhi, IN
34.253.99.212 AS16509 Amazon.com, Inc. 0.24ms from Dublin, IE
81.98.17.132 AS5089 Virgin Media Limited 15.24ms from Dublin, IE
78.50.202.148 AS6805 Telefonica Germany GmbH & Co.OHG 6.00ms from Hamburg, DE
103.141.30.4 AS137503 Spidernet Co.,Ltd 7.28ms from Ho Chi Minh City, VN
72.134.117.180 AS20001 Charter Communications Inc 6.38ms from Los Angeles, US
98.225.112.68 AS7922 Comcast Cable Communications, LLC 15.35ms from Los Angeles, US
185.33.15.20 AS200741 EasyTeam SAS 1.76ms from Paris, FR
112.158.111.212 AS17858 LG POWERCOMM 2.40ms from Seoul, KR
115.17.146.180 AS4766 Korea Telecom 6.83ms from Seoul, KR
115.144.134.180 AS4766 Korea Telecom 1.01ms from Seoul, KR
116.59.69.164 AS17421 Mobile Business Group 6.83ms from Taipei, TW
3.165.25.20 AS16509 Amazon.com, Inc. 0.96ms from Tokyo, JP
204.111.136.132 AS4922 Shenandoah Cable Television LLC 1.85ms from Ashburn, US
20.121.67.180 AS8075 Microsoft Corporation 0.62ms from Ashburn, US
47.247.19.100 AS55836 Reliance Jio Infocomm Limited 6.37ms from Bengaluru, IN
68.146.49.20 AS6327 Shaw Communications Inc. 5.10ms from Calgary, CA
116.205.232.180 AS55990 Huawei Cloud Service data center 1.61ms from Guangzhou, CN
77.8.45.68 AS6805 Telefonica Germany GmbH & Co.OHG 1.08ms from Hamburg, DE
3.239.221.180 AS14618 Amazon.com, Inc. 0.14ms from Reston, US
69.42.4.68 AS11404 Wave Broadband 5.46ms from San Jose, US
104.68.96.20 AS16625 Akamai Technologies, Inc. 0.52ms from San Jose, US
13.209.158.228 AS16509 Amazon.com, Inc. 0.19ms from Seoul, KR

Traceroute

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

$
traceroute -a -n -q1 -m14 141.104.101.221
traceroute to 141.104.101.221 (141.104.101.221): 14 hops max, 52 byte packets
2 *
3 [] 182.79.247.94 219.875 ms
4 *
5 *
6 *
7 [AS7922] 96.110.43.206 270.345 ms
8 [AS7922] 68.86.172.250 266.584 ms
9 [AS7922] 96.110.203.22 271.981 ms
10 [AS7922] 96.110.203.25 270.877 ms
11 [AS7922] 96.110.203.58 262.739 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Bengaluru, IN
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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