AS21508
Comcast Cable Communications, LLC
Scanned 3h 54m ago
🔄 Rescan

📋 Summary

IP address summary information
NameComcast Cable Communications, LLC
IPv4 addresses70K
IPv6 addresses~2^86
ASN typeTransit
RegistryARIN
AllocatedMay 16, 2001
UpdatedJan 25, 2021

📊 IP Ranges

IPv4: 17 | IPv6: 61
NetblockIP Count
50.217.207.0/24 256
173.242.174.0/24 256
2001:559:79e::/48 0
2001:559:5db::/48 0
2001:559:85c1::/48 0
2001:559:871a::/48 0
2001:559:49b::/48 0
2001:559:7db::/48 0
2001:559:f7::/48 0
2001:559:c0f7::/48 0
2001:559:c28f::/48 0
2001:559:c460::/48 0
2001:559:8445::/48 0
2001:559:73c::/48 0
157.240.147.0/24 256
50.217.1.0/24 256
2001:559:c1a5::/48 0
50.229.114.0/24 256
50.235.34.0/24 256
2001:559:833e::/48 0
2001:559:c0f6::/48 0
2001:559:c458::/48 0
2001:559:8773::/48 0
50.229.113.0/24 256
2001:559:8416::/48 0
50.216.229.0/24 256
198.90.112.0/22 1.0K
2001:559:85ff::/48 0
2001:559:53c::/48 0
2001:559:c4f6::/48 0
2001:559:c515::/48 0
2001:559:3c8::/48 0
2001:559:c2a7::/48 0
2001:559:c538::/48 0
2001:559:78a::/48 0
2001:559:c1ca::/48 0
2001:559:7a7::/48 0
141.104.0.0/16 66K
2001:559:81bf::/48 0
2001:559:788::/48 0
2001:559:841c::/48 0
2001:559:5c9::/48 0
50.218.47.0/24 256
2001:559:c45f::/48 0
2001:559:3b9::/48 0
2001:559:8a::/48 0
2001:559:8535::/48 0
2001:559:220::/48 0
2001:559:8604::/48 0
2001:559:81d7::/48 0
2001:559:c344::/48 0
2001:559:81d8::/48 0
205.223.19.0/24 256
2001:559:c071::/48 0
2001:559:c0::/48 0
50.205.217.0/24 256
2001:559:c174::/48 0
2001:559:280::/48 0
2001:559:804c::/48 0
204.194.47.0/24 256
2001:559:c3e9::/48 0
157.240.148.0/24 256
2001:559:37d::/48 0
2001:559:87b2::/48 0
2001:559:8201::/48 0
50.228.113.0/24 256
2001:559:875f::/48 0
2001:559:79d::/48 0
2001:559:82fd::/48 0
2001:559:c290::/48 0
2001:559:c4db::/48 0
2001:559:c10a::/48 0
2001:559:72b::/48 0
2001:559:40a::/48 0
2001:559:243::/48 0
2001:559:3ac::/48 0
2001:559:49a::/48 0
50.204.101.0/24 256

Prefix data from RIPE Stat / RIR allocation records.

📄 WHOIS

ARIN
HandleAS21508
NameCOMCAST-21508
OrganizationComcast Cable Communications, LLC
Statusactive
AllocatedMay 16, 2001
UpdatedJan 25, 2021

Contacts

RegistrantComcast Cable Communications, LLC
Address1800 Bishops Gate Blvd Mt Laurel NJ 08054 United States

Source: ARIN

🔗 Peers

0 peers for this ASN

No peers found.

⬆️ Upstreams

1 upstream
ASNName
AS7922 Comcast Cable Communications, LLC

Upstream data from RIPE Stat routing history.

⬇️ Downstreams

47 downstreams
ASNNameCountry
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 -
AS22274 Standard Motor Products, Inc -
AS23209 Virginia Housing Development Authority -
AS27326 VCU HEALTH SYSTEM AUTHORITY -
AS27341 Gannet Fleming, Inc. -
AS30299 THE MARTIN AGENCY HQ
AS32540 HP Hood -
AS36040 Google LLC -
AS36244 Shenandoah Valley Electric Cooperative -
AS36364 Mary Washington Hospital, Inc. -
AS393591 Gamewood Technology Group, Inc. -
AS393613 Virginia Credit Union, Inc. -
AS394058 Telos Corporation -
AS394276 TurnAround Factor, Inc. -
AS395441 EdgeConneX, INC -
AS395527 Not available -
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 VA
AS399938 Berkshire Hathaway Energy Company -
AS400114 Apogee Telecom Inc. -
AS402549 Terraservers -
AS40641 MGW Telephone Company, Inc. -
AS46643 Virginia College Savings Plan -
AS54113 Fastly, Inc. -
AS54219 Matthews International Corporation -
AS54391 Crutchfield New Media LLC -
AS54883 City of Richmond, Virginia -
AS62971 County of Chesterfield VA
AS63468 Infinitt North America, Inc. -

🔒 RPKI / ROA

Source: rpki.zorn.ltd
PrefixOrigin ASNMax LengthValidity
50.217.207.0/24 AS21508 /24 ✓ Valid
173.242.174.0/24 AS21508 /24 Not Found
157.240.147.0/24 AS21508 /24 Not Found
50.217.1.0/24 AS21508 /24 ✓ Valid
50.229.114.0/24 AS21508 /24 ✓ Valid
50.235.34.0/24 AS21508 /24 ✓ Valid
50.229.113.0/24 AS21508 /24 ✓ Valid
50.216.229.0/24 AS21508 /24 ✓ Valid
198.90.112.0/22 AS21508 /22 Not Found
141.104.0.0/16 AS21508 /16 Not Found
50.218.47.0/24 AS21508 /24 ✓ Valid
205.223.19.0/24 AS21508 /24 Not Found
50.205.217.0/24 AS21508 /24 ✓ Valid
204.194.47.0/24 AS21508 /24 Not Found
157.240.148.0/24 AS21508 /24 Not Found
50.228.113.0/24 AS21508 /24 ✓ Valid
50.204.101.0/24 AS21508 /24 ✓ Valid

RPKI validation powered by rpki.zorn.ltd (Routinator).