ResearchRouting table, RPKI, IRR & looking glass

AS7922 Comcast Cable Communications, LLC

AS7922 (COMCAST-7922) is registered to Comcast Cable Communications, LLC in US, through ARIN. It originates 437 prefixes in the global routing table.

426
IPv4 prefixes
11
IPv6 prefixes
68,238,848
IPv4 addresses
98%
RPKI valid
Registration

Who holds AS7922

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS7922
Handle
COMCAST-7922
Organization
Comcast Cable Communications, LLC
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       7922
ASName:         COMCAST-7922
ASHandle:       AS7922
RegDate:        1997-02-14
Updated:        2021-01-25
Ref:            https://rdap.arin.net/registry/autnum/7922



OrgName:        Comcast Cable Communications, LLC
OrgId:          CCCS
Address:        1800 Bishops Gate Blvd
City:           Mt Laurel
StateProv:      NJ
PostalCode:     08054
Country:        US
RegDate:        2001-09-18
Updated:        2020-11-18
Ref:            https://rdap.arin.net/registry/entity/CCCS


OrgRoutingHandle: ROUTI25-ARIN
OrgRoutingName:   Routing
OrgRoutingPhone:  +1-856-792-2300 
OrgRoutingEmail:  routing@comcast.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ROUTI25-ARIN

OrgTechHandle: IC161-ARIN
OrgTechName:   Comcast Cable Communications Inc
OrgTechPhone:  +1-856-792-2300 
OrgTechEmail:  CNIPEO-Ip-registration@cable.comcast.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IC161-ARIN

OrgAbuseHandle: NAPO-ARIN
OrgAbuseName:   Network Abuse and Policy Observance
OrgAbusePhone:  +1-888-565-4329 
OrgAbuseEmail:  abuse@comcast.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NAPO-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#
Routing

What AS7922 announces

Prefixes originated by AS7922 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
426
IPv6 prefixes
11
IPv4 addresses
68,238,848 (266,558 /24s)
RPKI valid
429 98%
RPKI invalid
6
RPKI not found
2
ROAs naming AS7922
775
With an IRR route object
164 37%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (426)
23.24.0.0/1523.30.0.0/1523.68.0.0/1424.0.0.0/1224.16.0.0/1324.30.0.0/1724.34.0.0/1624.40.0.0/1824.40.64.0/2024.60.0.0/1424.91.0.0/1624.98.0.0/1524.104.0.0/1724.104.128.0/1924.118.0.0/1624.124.128.0/1724.125.0.0/1624.126.0.0/1524.128.0.0/1624.129.0.0/1724.130.0.0/1524.147.0.0/1624.153.64.0/1924.218.0.0/1624.245.0.0/1848.44.1.0/2448.44.2.0/2448.44.4.0/2448.44.6.0/2348.44.8.0/2348.44.28.0/2248.44.32.0/2348.44.34.0/2448.44.36.0/2248.44.51.0/2448.44.52.0/2348.44.54.0/2448.44.64.0/2248.44.68.0/2348.44.71.0/2448.44.72.0/2148.44.81.0/2448.44.82.0/2348.44.84.0/2448.44.86.0/2348.44.88.0/2348.44.92.0/2248.44.96.0/2248.44.101.0/2448.44.102.0/2348.44.104.0/2248.44.109.0/2448.44.110.0/2348.44.113.0/2448.44.114.0/2348.44.117.0/2448.44.118.0/2348.44.122.0/2348.44.124.0/2448.44.126.0/2348.44.160.0/2048.44.192.0/2148.44.200.0/2248.44.204.0/2248.44.208.0/2248.44.212.0/2248.44.216.0/2248.44.220.0/2248.45.0.0/1948.45.0.0/2348.45.2.0/2348.45.4.0/2348.45.8.0/2248.45.12.0/2348.45.14.0/2348.45.16.0/2248.45.20.0/2248.45.24.0/2148.45.32.0/2048.45.32.0/2348.45.34.0/2348.45.36.0/2348.45.38.0/2348.45.40.0/2148.45.48.0/2048.45.64.0/1848.45.64.0/2348.45.66.0/2348.45.68.0/2248.45.72.0/2248.45.76.0/2348.45.78.0/2348.45.80.0/2148.45.88.0/2148.45.96.0/2148.45.104.0/2148.45.112.0/2148.45.120.0/2148.45.128.0/2448.45.129.0/2448.45.131.0/2448.45.132.0/2348.45.135.0/2448.45.136.0/2448.45.137.0/2448.45.139.0/2448.45.141.0/2448.45.143.0/2448.45.144.0/2448.45.145.0/2448.45.147.0/2448.45.148.0/2348.45.152.0/2448.45.153.0/2448.45.155.0/2448.45.156.0/2348.45.159.0/2448.45.160.0/2448.45.161.0/2448.45.163.0/24
Show 306 more
48.45.166.0/2348.45.168.0/2448.45.169.0/2448.45.171.0/2448.45.172.0/2348.45.175.0/2448.45.176.0/2348.45.179.0/2448.45.180.0/2348.45.183.0/2448.45.184.0/2448.45.185.0/2448.45.187.0/2448.45.188.0/2348.45.190.0/2448.45.204.0/2248.45.208.0/2448.45.210.0/2348.45.212.0/2448.45.213.0/2448.45.215.0/2448.45.216.0/2348.45.218.0/2448.45.227.0/2448.45.228.0/2348.45.230.0/2448.45.232.0/2248.45.237.0/2448.45.238.0/2448.45.240.0/2448.45.241.0/2448.45.243.0/2448.45.244.0/2448.45.245.0/2448.45.246.0/2448.45.247.0/2448.45.249.0/2448.45.250.0/2348.45.252.0/2448.45.253.0/2448.45.255.0/2448.46.0.0/1848.46.0.0/2248.46.4.0/2248.46.8.0/2248.46.12.0/2248.46.16.0/2248.46.20.0/2248.46.24.0/2248.46.28.0/2248.46.32.0/2148.46.40.0/2348.46.42.0/2348.46.44.0/2248.46.48.0/2348.46.50.0/2348.46.52.0/2348.46.54.0/2348.46.56.0/2248.46.60.0/2348.46.62.0/2348.46.65.0/2448.46.66.0/2348.46.68.0/2348.46.71.0/2448.46.72.0/2348.46.76.0/2248.46.81.0/2448.46.82.0/2348.46.84.0/2248.46.88.0/2348.46.91.0/2448.46.92.0/2248.46.96.0/2248.46.101.0/2448.46.102.0/2348.46.104.0/2248.46.108.0/2348.46.112.0/2248.46.116.0/2348.46.119.0/2448.46.120.0/2248.46.124.0/2348.46.127.0/2448.46.128.0/1848.46.128.0/2148.46.136.0/2248.46.140.0/2248.46.144.0/2148.46.152.0/2148.46.160.0/2148.46.168.0/2148.46.176.0/2348.46.178.0/2348.46.180.0/2248.46.184.0/2248.46.188.0/2248.46.192.0/1948.46.192.0/2148.46.200.0/2148.46.208.0/2148.46.216.0/2148.46.232.0/2148.46.240.0/2048.46.240.0/2148.46.248.0/2348.46.250.0/2348.46.252.0/2248.47.1.0/2448.47.2.0/2348.47.4.0/2348.47.6.0/2448.47.8.0/2248.47.12.0/2348.47.15.0/2448.47.16.0/2248.47.20.0/2448.47.22.0/2348.47.24.0/2248.47.29.0/2448.47.30.0/2348.47.32.0/2348.47.34.0/2448.47.36.0/2248.47.40.0/2348.47.43.0/2448.47.44.0/2348.47.46.0/2348.47.48.0/2448.47.50.0/2348.47.52.0/2248.47.57.0/2448.47.58.0/2348.47.60.0/2348.47.62.0/2448.47.64.0/2248.47.68.0/2348.47.71.0/2448.47.72.0/2248.47.76.0/2448.47.78.0/2348.47.80.0/2248.47.85.0/2448.47.86.0/2348.47.88.0/2348.47.90.0/2448.47.92.0/2248.47.96.0/2348.47.99.0/2448.47.100.0/2248.47.104.0/2448.47.106.0/2348.47.108.0/2248.47.113.0/2448.47.114.0/2348.47.116.0/2348.47.118.0/2448.47.120.0/2248.47.124.0/2248.47.128.0/1848.47.128.0/2148.47.136.0/2148.47.144.0/2148.47.152.0/2148.47.160.0/2148.47.168.0/2148.47.176.0/2148.47.184.0/2148.47.192.0/1948.47.192.0/2148.47.200.0/2248.47.204.0/2248.47.208.0/2248.47.212.0/2248.47.216.0/2248.47.220.0/2248.47.224.0/2148.47.232.0/2348.47.234.0/2348.47.240.0/2148.47.248.0/2348.47.252.0/2250.73.0.0/1650.76.0.0/1450.128.0.0/950.220.178.0/2464.56.32.0/1964.139.64.0/1965.34.128.0/1765.96.0.0/1665.97.0.0/1966.30.0.0/1566.41.0.0/1666.56.0.0/1866.93.43.0/2466.93.45.0/2466.93.46.0/2466.93.47.0/2466.93.180.0/2466.93.181.0/2466.93.182.0/2466.93.183.0/2466.176.0.0/1566.208.192.0/1866.229.0.0/1666.240.0.0/1866.253.72.0/2466.253.76.0/2466.253.77.0/2466.253.78.0/2467.160.0.0/1168.32.0.0/1168.80.0.0/1368.167.24.0/2468.167.25.0/2468.167.26.0/2468.167.27.0/2468.167.56.0/2468.167.57.0/2468.167.58.0/2468.167.59.0/2469.136.0.0/1369.180.0.0/1569.240.0.0/1270.88.0.0/1471.24.0.0/1471.56.0.0/1371.192.0.0/1271.224.0.0/1272.55.0.0/1772.244.138.0/2472.244.144.0/2472.244.146.0/2472.244.152.0/2473.0.0.0/874.16.0.0/1274.49.227.0/2474.49.240.0/2474.49.242.0/2474.49.244.0/2474.49.246.0/2474.81.128.0/1974.92.0.0/1475.64.0.0/1375.72.0.0/1575.74.0.0/1675.75.0.0/1775.75.128.0/1875.144.0.0/1376.16.0.0/1276.96.0.0/1176.128.0.0/1196.64.0.0/1196.96.0.0/1296.112.0.0/1396.120.0.0/1496.124.0.0/1696.128.0.0/1196.192.0.0/1198.32.0.0/1198.192.0.0/10107.0.0.0/14107.4.0.0/15140.99.49.0/24140.99.77.0/24140.99.79.0/24140.99.127.0/24140.99.132.0/22140.99.210.0/24147.191.0.0/16162.17.0.0/16162.148.0.0/14165.137.0.0/16169.152.0.0/16172.244.0.0/16173.8.0.0/13173.160.0.0/13173.214.184.0/23174.48.0.0/12174.140.228.0/23174.160.0.0/11184.108.0.0/14184.112.0.0/12198.0.0.0/16198.137.252.0/23198.178.8.0/21204.11.116.0/22204.93.173.0/24205.234.162.0/24205.234.234.0/24207.180.8.0/24207.180.9.0/24207.180.15.0/24207.180.54.0/24208.39.128.0/18209.23.192.0/18209.101.248.0/24209.101.249.0/24209.101.250.0/24209.101.251.0/24216.45.128.0/17216.122.112.0/22216.122.116.0/22216.246.7.0/24216.246.28.0/24216.246.102.0/24
IPv6 (11)
2001:558::/292001:559:9005::/482001:559:900e::/482001:559:9013::/482001:559:9015::/482001:559:9026::/482001:559:9028::/482601::/202603:2000::/202603:3000::/242620:fd:8000::/48

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS7922 is reached through

The AS just before AS7922 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS174 COGENT-174 60AS7029 WINDSTREAM 60AS3356 LEVEL3 60AS6939 HURRICANE 60
ASPA

Provider authorization

AS7922 publishes no ASPA of its own. 15 ASes name it as a provider in theirs. Check a path.

The 15 ASes that name AS7922 as a provider
AS6248 DEKA-R-DAS11983 TIKTOK-USDSAS16881 DAVID-C-PRALL-INTERNETAS27421 APPLAUSEMAAS29298 SUSEAS39961 CCSFAS54256 VELOCITY-COMMUNICATIONSAS54384 CORE-ASNAS211757 PANASCAISAS393819 LACKAWANNA-COUNTYAS395011 SF-PSNAS395141 PRMHQ-AS1AS397170 COMPASS-FOUNDATIONAS400240 NEEBUNETAS401422 ASNCOBBCOUNTY
IRR

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RADBCOMCAST-IBONEMAINT-AS7922

Route objects with origin AS7922: RADB 401 · ARIN 233 · RIPE 9 · AFRINIC 5

as-sets that list AS7922 (30)
AS-10099AS-17117IMPORTAS-36193AS-ACT-GLOBALAS-COMCAST-IBONEAS-CTBC-CUSTOMERS109AS-EBPROVIDERSAS-FIBERFED-MIAAS-FKBPROVIDERSAS-FRANKLININSTITUTEAS-GBLXAS-GCI-UPSTREAMAS-H5DATA-AS-SETPA01AS-JCC-TORONTO-OHAS-LEVEL3-CUSTOMERS-NAAS-LEVEL3-IPV6AS-LEVEL3-ORIGINS-NAAS-LUMEN-CUSTOMERS-ASNSAS-OOWLPROVIDERAS-TBMI-IRR-SETAS-TMNET-CUSTOMERSAS-TRANSIT-FREE-V4AS-TRANSIT-FREE-V6AS-ZITOMEDIAAS199746:AS-BLACKLISTAS204464:AS-BLACKLISTAS211757:AS-TRANSITAS395141:AS-PEERSAS397813:AS-PEERSAS400977:AS-PEERS
Tools

Check AS7922 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup