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 71,680
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
50.227.24.0/24 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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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
173.242.174.203 ██████████ 1
50.204.101.60 ██████████ 1
50.205.217.50 ██████████ 1
50.235.34.25 ██████████ 1
141.104.145.20 ██████████ 1
50.204.101.61 ██████████ 1
50.216.229.251 ██████████ 1

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Peers

There are 46 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
AS19923 Shenandoah University
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 45 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
AS19923 Shenandoah University
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
205.223.19.19 AS21508 Comcast Cable Communications, LLC 5.03ms from Ashburn, US
173.242.174.1 AS21508 Comcast Cable Communications, LLC 5.05ms from Ashburn, US
50.205.217.243 AS21508 Comcast Cable Communications, LLC 5.03ms from Ashburn, US
50.229.113.2 AS21508 Comcast Cable Communications, LLC 5.62ms from Ashburn, US
2001:559:c290:5::941 AS21508 Comcast Cable Communications, LLC 13.36ms from Atlanta, US
50.235.34.255 AS21508 Comcast Cable Communications, LLC 11.70ms from Atlanta, US
50.228.113.1 AS21508 Comcast Cable Communications, LLC 3.70ms from Ashburn, US
50.204.101.75 AS21508 Comcast Cable Communications, LLC 3.84ms from Ashburn, US
198.90.112.33 AS21508 Comcast Cable Communications, LLC 2.98ms from Ashburn, US
157.240.148.30 AS21508 Comcast Cable Communications, LLC 4.43ms from Ashburn, US
50.217.1.1 AS21508 Comcast Cable Communications, LLC 3.41ms from Ashburn, US
2001:559:49b:1f07:dead:beef:123:157 AS21508 Comcast Cable Communications, LLC 6.23ms from Ashburn, US
50.218.47.1 AS21508 Comcast Cable Communications, LLC 12.53ms from Atlanta, US
50.219.13.63 AS21508 Comcast Cable Communications, LLC 9.89ms from Ashburn, US
157.240.147.15 AS21508 Comcast Cable Communications, LLC 11.59ms from Atlanta, US
50.219.12.43 AS21508 Comcast Cable Communications, LLC 6.61ms from Ashburn, US
50.216.229.1 AS21508 Comcast Cable Communications, LLC 2.91ms from Ashburn, US
50.217.207.4 AS21508 Comcast Cable Communications, LLC 8.16ms 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
75.240.123.180 AS6167 Verizon Business 17.91ms from Chicago, US
35.232.135.36 AS396982 Google LLC 0.13ms from Council Bluffs, US
52.31.213.132 AS16509 Amazon.com, Inc. 0.16ms from Dublin, IE
79.228.153.68 AS3320 Deutsche Telekom AG 4.04ms from Frankfurt am Main, DE
152.89.163.244 AS9009 M247 Europe SRL 0.12ms from Frankfurt am Main, DE
123.20.90.180 AS45899 VNPT Corp 1.47ms from Ho Chi Minh City, VN
139.64.133.132 AS33387 Nocix, LLC 0.02ms from Kansas City, US
86.133.18.36 AS2856 British Telecommunications PLC 5.64ms from London, GB
95.107.92.84 AS12389 PJSC Rostelecom 12.59ms from Moscow, RU
173.72.17.196 AS701 Verizon Business 5.57ms from New York City, US
52.41.231.164 AS16509 Amazon.com, Inc. 4.52ms from Portland, US
34.212.205.52 AS16509 Amazon.com, Inc. 4.50ms from Portland, US
18.235.80.180 AS14618 Amazon.com, Inc. 0.20ms from Reston, US
89.192.103.4 AS8011 MongoDB, Inc. 0.15ms from Reston, US
23.108.186.36 AS7203 Leaseweb USA, Inc. 0.14ms from San Jose, US
12.70.107.4 AS7018 AT&T Enterprises, LLC 4.72ms from Secaucus, US
23.73.5.132 AS20940 Akamai International B.V. 0.70ms from Stockholm, SE
125.168.154.36 AS9443 Vocus Retail 1.63ms from Sydney, AU
211.90.198.4 AS4837 CHINA UNICOM China169 Backbone 2.35ms from Taiyuan, CN
148.78.241.36 AS16811 SageNet LLC 0.56ms from Atlanta, US
179.244.35.100 AS26599 TELEFÔNICA BRASIL S.A 12.24ms from Belo Horizonte, BR
97.156.226.84 AS6167 Verizon Business 13.85ms from Chicago, US
38.142.160.228 AS174 Cogent Communications 0.16ms from Denver, US
40.122.29.52 AS8075 Microsoft Corporation 0.20ms from Des Moines, US
52.48.119.84 AS16509 Amazon.com, Inc. 0.13ms from Dublin, IE

Traceroute

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

$
traceroute -a -n -q1 -f5 -m14 141.104.223.76
traceroute to 141.104.223.76 (141.104.223.76): 14 hops max, 52 byte packets
6 [AS7922] 96.110.34.173 17.745 ms
7 [AS7922] 96.110.43.206 28.135 ms
8 [AS7922] 68.86.172.250 29.289 ms
9 [AS7922] 96.110.203.22 28.424 ms
10 [AS7922] 96.110.203.25 28.445 ms
11 [AS7922] 96.110.203.58 28.741 ms
12 *
13 *
14 *
Measurement taken from IPinfo ProbeNet in Dallas, 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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