Home ASN LookupAS20214

AS20214 COMCAST-20214 - Comcast Cable Communications, LLC

🇺🇸

ARINassigned

Announced Prefixes (BGP)

299total

190 IPv4109 IPv6

IPv4 Addresses

Allocated (RIR)131,072

Announced (BGP)1.7M

IPv6 Addresses

Allocated (RIR)0

Announced (BGP)1×10³¹

Prefix Limit (IPv4)

500

Prefix Limit (IPv6)

500

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2001-04-06

Announced Prefixes

(BGP)299

Prefix	RPKI	IRR	Last Seen
23.24.160.0/19	Valid	-	2026-10-11
23.31.0.0/18	Valid	-	2026-10-11
24.124.144.0/22	Valid	-	2026-10-11
24.153.64.0/22	Valid	-	2026-10-11
50.73.0.0/21	Valid	-	2026-10-11
50.73.128.0/19	Valid	-	2026-10-11
50.76.148.0/23	Valid	-	2026-10-11
50.76.232.0/21	Valid	-	2026-10-11
50.77.5.0/24	Valid	-	2026-10-11
50.77.112.0/20	Valid	-	2026-10-11

1-10 of 299

1 / 30

Allocated Prefixes

(RIR)2

Prefix	Country	RIR	Status
147.137.0.0/16	🇺🇸 US	ARIN	allocated
168.221.0.0/16	🇺🇸 US	ARIN	allocated

All 299 announced prefixes of AS20214 →

BGP Neighbours

(seen in AS paths)

Upstreams (1)

Networks AS20214 hands its own prefixes to: transit providers, or peers at an exchange.

AS7922Comcast Cable Communications299

Downstreams (14)

Networks whose own prefixes AS20214 passes on: usually its customers.

AS63415Great Healthworks3
AS31812Palm Beach County Sheriffs Office2
AS36040Google2
AS54113Fastly2
AS17035NBCUniversal1
AS19899Miami Dade College1
AS22032Ocean Reef Club1
AS393843WPLG TV1
AS395619The College Of Florida Keys1
AS398044Trinity Network Solutions1
AS401195Broward Sheriffs Office1
AS401671ACCESSPARKS1
AS401691UNIVERSAL HEALTH SERVICES1
AS402232ADMA BIOMANUFACTURING1

Other adjacent networks (1)

Adjacent to AS20214 in the transit part of AS paths: peers, providers or customers.

AS3356Level 3 Parent2

Transfer History

Registry transfers of AS20214 between organisations.

AS20214M&A · 2016-08-31
Comcast Cable Communications Holdings, Inc
🇺🇸 US ARIN
→
Comcast Cable Communications, LLC
🇺🇸 US ARIN

Date	Resource	From	To	Type
2016-08-31	AS20214	Comcast Cable Communications Holdings, Inc 🇺🇸 US ARIN	Comcast Cable Communications, LLC 🇺🇸 US ARIN	M&A

ASPA

No ASPA

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS20214 should publish an ASPA object
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/20214

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/20214" | jq