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  3. AS21508

AS21508

COMCAST-21508

COMCAST-21508
Organization
Title
COMCAST-21508
Details
Regional Internet registry
ARIN
IP Addresses count
72,192
Coordinates
Summary
The organization COMCAST-21508 allocates 22 IP netblocks under the autonomous system number (ASN ) of 21508. The regional internet registry (RIR ) for this ASN is ARIN. The country in which these IPs are located is United States of America (US), which is on #1 out of 249 countries by the total amount of ASNs allocated - 27,927.

AS21508 has 39 peers, 1 upstreams and 38 downstreams with a total of 72,192 IP addresses.
IP Address ranges
Block Description IPs count
50.204.101.0/24 CCCH3-4 256
50.205.217.0/24 Comcast Cable Communications, Inc. 256
50.220.111.0/24 Comcast Cable Communications, Inc. 256
50.225.179.0/24 Comcast Cable Communications, Inc. 256
50.227.24.0/24 Comcast Cable Communications, Inc. 256
50.228.113.0/24 Comcast Cable Communications, Inc. 256
50.229.95.0/24 Comcast Cable Communications, Inc. 256
50.229.113.0/24 Comcast Cable Communications, Inc. 256
50.229.114.0/24 Comcast Cable Communications, Inc. 256
50.232.58.0/23 Comcast Cable Communications, Inc. 512
50.234.62.0/23 Comcast Cable Communications, Inc. 512
50.235.34.0/24 CCCH3-4 256
50.237.96.0/24 Comcast Cable Communications, Inc. 256
76.78.84.0/24 Comcast Cable Communications, Inc. 256
141.104.0.0/16 VAK12ED-NET 65,536
157.240.147.0/24 Facebook, Inc. 256
157.240.148.0/24 Facebook, Inc. 256
173.242.174.0/24 TelCove BGP Customer netblock 256
192.100.76.0/24 Comcast Cable Communications, Inc. 256
198.90.112.0/22 Elauwit Networks, LLC (ENL-66) 1,024
204.194.47.0/24 Comcast cable Communications, Inc. 256
205.223.19.0/24 Comcast cable Communications, Inc. 256
Peers
ASN Name IPs Count
AS7922 Comcast Cable Communications, LLC 71,283,200
AS2134 Produban Servicios Informaticos Generales, S.L. 98,304
AS8360 Allianz Technology SE 1,536
AS13335 Cloudflare, Inc. 1,573,376
AS14583 Virginia Information Technologies Agency (VITA) 1,024
AS15173 Newmarket Corporation 65,792
AS19709 Helix Computer Systems, Inc. 2,048
AS19923 Shenandoah University 2,048
AS23209 Virginia Housing Development Authority 512
AS26717 Richmond Public Schools 768
AS27326 VCU HEALTH SYSTEM AUTHORITY 1,792
AS27336 Sentara Healthcare 65,536
AS30299 THE MARTIN AGENCY 256
AS32540 HP Hood 768
AS36179 Virginia Information Technologies Agency (VITA) 512
AS36244 Shenandoah Valley Electric Cooperative 512
AS36364 Mary Washington Hospital, Inc. 768
AS40288 CONGRESSIONAL FEDERAL CREDIT UNION 512
AS40323 Virginia Farm Bureau Mutual Insurance Company 256
AS40485 SANDY SPRING BANK 512
AS46643 Virginia College Savings Plan 256
AS46847 nexVortex 4,352
AS53410 APPLIED SYSTEMS, INC 512
AS54391 Crutchfield New Media LLC 512
AS54883 City of Richmond, Virginia 512
AS62971 County of Chesterfield 256
AS63434 CVALINK Broadband 1,024
AS63468 Infinitt North America, Inc. 512
AS393591 Gamewood Technology Group, Inc. 1,536
AS393613 Virginia Credit Union, Inc. 512
AS394058 Telos Corporation 512
AS395441 EdgeConneX, INC 256
AS395444 Merit Medical Systems, Inc 256
AS395527 Virginia State University 65,536
AS395772 Augusta Health Care, Inc 768
AS396017 COMCAST-D 256
AS396083 AREVA Inc. 512
AS396452 Loudoun Water 256
AS397039 WorldStrides 0
Upstreams
ASN Name IPs Count
AS7922 Comcast Cable Communications, LLC 71,283,200
Downstreams
ASN Name IPs Count
AS2134 Produban Servicios Informaticos Generales, S.L. 98,304
AS8360 Allianz Technology SE 1,536
AS13335 Cloudflare, Inc. 1,573,376
AS14583 Virginia Information Technologies Agency (VITA) 1,024
AS15173 Newmarket Corporation 65,792
AS19709 Helix Computer Systems, Inc. 2,048
AS19923 Shenandoah University 2,048
AS23209 Virginia Housing Development Authority 512
AS26717 Richmond Public Schools 768
AS27326 VCU HEALTH SYSTEM AUTHORITY 1,792
AS27336 Sentara Healthcare 65,536
AS30299 THE MARTIN AGENCY 256
AS32540 HP Hood 768
AS36179 Virginia Information Technologies Agency (VITA) 512
AS36244 Shenandoah Valley Electric Cooperative 512
AS36364 Mary Washington Hospital, Inc. 768
AS40288 CONGRESSIONAL FEDERAL CREDIT UNION 512
AS40323 Virginia Farm Bureau Mutual Insurance Company 256
AS40485 SANDY SPRING BANK 512
AS46643 Virginia College Savings Plan 256
AS46847 nexVortex 4,352
AS53410 APPLIED SYSTEMS, INC 512
AS54391 Crutchfield New Media LLC 512
AS54883 City of Richmond, Virginia 512
AS62971 County of Chesterfield 256
AS63434 CVALINK Broadband 1,024
AS63468 Infinitt North America, Inc. 512
AS393591 Gamewood Technology Group, Inc. 1,536
AS393613 Virginia Credit Union, Inc. 512
AS394058 Telos Corporation 512
AS395441 EdgeConneX, INC 256
AS395444 Merit Medical Systems, Inc 256
AS395527 Virginia State University 65,536
AS395772 Augusta Health Care, Inc 768
AS396017 COMCAST-D 256
AS396083 AREVA Inc. 512
AS396452 Loudoun Water 256
AS397039 WorldStrides 0
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