AS7922
Comcast Cable Communications LLC
Philadelphia, Pennsylvania, US
Cable ISP ARIN United States
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🏢 Organisation
Full nameComcast Cable Communications LLC
ASNAS7922
TypeCable ISP
CountryUnited States
HeadquartersPhiladelphia, Pennsylvania, US
Founded1963
Websitexfinity.com
RegistryARIN
🌐 Network
Total IPs~70 million (IPv4)
UpstreamTier-1 and Tier-2 transit — largest cable ISP in the US
IPv62601::/20
RIRARIN
Abuse emailabuse@comcast.net
Abuse formReport abuse →
📌 IPv4 Address Ranges
24.0.0.0/8 50.0.0.0/8 67.160.0.0/11 68.32.0.0/11 73.0.0.0/8 96.0.0.0/8
🔁 BGP Peers
AS7018 (AT&T) AS701 (Verizon) AS3356 (Lumen) AS174 (Cogent) AS1299 (Telia)
🔒
Your ISP can see every website you visit
A VPN encrypts your traffic and hides it from Comcast and any other ISP.
PureVPN → IPVanish →

About Comcast Cable Communications LLC (AS7922)

AS7922 is Comcast's primary ASN for its Xfinity cable internet service — the largest residential ISP in the United States by subscribers. Comcast residential customers are typically assigned dynamic IPs in the 73.0.0.0/8 or 96.0.0.0/8 ranges. Comcast uses Carrier-Grade NAT (CGNAT) in some areas, meaning multiple customers share a single public IP from the 100.64.0.0/10 range.

What AS7922 Means for Your Privacy

Every time you visit a website, your IP address — and therefore your ISP (Comcast Cable Communications LLC) — is visible to that site. Comcast Cable Communications LLC as your ISP can see all unencrypted traffic passing through their network, including the domains you visit. This is standard practice for all ISPs and is typically used for network management, legal compliance, and in some cases targeted advertising.

If your device is assigned an IP in Comcast Cable Communications LLC’s ranges, websites you visit will identify your connection as coming from Comcast Cable Communications LLC. To prevent this, a VPN replaces your ISP-assigned IP with the VPN server’s IP, making your traffic appear to come from a different provider entirely.

Technical Notes for AS7922

AS7922 is registered with ARIN — the Regional Internet Registry responsible for IP allocations in North America. The ASN is used to announce IP prefixes to the global BGP routing table, allowing other networks to route traffic to Comcast Cable Communications LLC’s infrastructure.

Comcast Cable Communications LLC peers with major transit providers and internet exchanges to ensure global reachability. BGP peering relationships determine how traffic flows between Comcast Cable Communications LLC and the rest of the internet.

Frequently Asked Questions About AS7922

What IP range do Comcast Xfinity customers get?
Comcast Xfinity residential customers are typically assigned dynamic IPs from the 73.x.x.x or 96.x.x.x ranges. Some areas use CGNAT with addresses in the 100.64.x.x range. Business customers get static IPs from different ranges.
Does Comcast use CGNAT?
Yes, in some areas. Comcast uses Carrier-Grade NAT (CGNAT) assigning customers private IPs in the 100.64.0.0/10 range. This can cause issues with port forwarding, VPNs, and P2P connections. Contact Comcast to request a dedicated public IP.
Does Comcast monitor internet traffic?
Comcast, like all US ISPs, can see your browsing activity at the DNS level and may throttle specific types of traffic. Using a VPN encrypts your traffic and prevents Comcast from seeing what sites you visit.

Learn More About IP Addresses & Privacy

Related ISPs & Networks

AS7018
AT&T Services Inc.
Tier-1 ISP / Telecom
AS701
Verizon Communications
Tier-1 ISP / Telecom
AS3356
Lumen Technologies Inc.
Tier-1 Transit Provider

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Last updated: March 30, 2026 • Data sourced from ARIN WHOIS, BGP.he.net, and public routing tables. • Report an error

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