Comcast (Xfinity) IP Ranges
Comcast, marketed as Xfinity, says Xfinity is the largest internet provider in the US. Its home and business internet network runs under AS7922, which announces about 68 million IPv4 addresses.
- Provider
- Comcast (Xfinity)
- Primary ASN
- AS7922
- Category
- ISP
- Headquarters
- Philadelphia, PA, USA
- Announced IPv4 prefixes
- 427
Known IP ranges
The blocks below are the major address allocations associated with Comcast (Xfinity). A network of this size deaggregates heavily, so an individual route in the global routing table is usually more specific than the block shown. Prefix sets change over time — use WHOIS Lookup for the authoritative current record for any specific IP.
73.0.0.0/8
24.0.0.0/12
68.80.0.0/13
96.64.0.0/11
98.192.0.0/10
Where the current list lives
We found no published IP list or geofeed in the Comcast ARIN registry records we sampled or in a web search on 21 Oct 2026. Registry record checked
The current view of what the network announces is in the routing table: AS7922 on RIPEstat.
What does a Comcast (Xfinity) IP mean in a privacy test?
A Comcast IP (AS7922) as your visible address means you are connecting from a Comcast residential or business line with no VPN active. If you expected a VPN exit, seeing your Comcast ISP means the tunnel is not routing your traffic.
Related tools
Frequently asked questions
What IP ranges does Comcast use?
Comcast announces large blocks under AS7922, including 73.0.0.0/8, 24.0.0.0/12 and 96.64.0.0/11. They serve both home and business customers; 96.64.0.0/11, for example, includes Comcast Business static addresses. RIPEstat lists the 427 IPv4 prefixes AS7922 announces today; ARIN WHOIS shows who holds a given block.
Why does my IP show Comcast?
If your visible IP returns AS7922 (Comcast), you are connecting directly through your Comcast internet line. This is normal when no VPN or proxy is active. With a VPN on, your visible ASN should change to the VPN provider.
Does Comcast assign static or dynamic IPs?
Residential Comcast connections use dynamic IPs that can change over time. Business plans offer static IP options. Your assigned address always falls within Comcast AS7922 ranges.
How do I look up a Comcast IP address?
Enter the IP in MyIPScan IP Geolocation Lookup. Comcast IPs return AS7922 (Comcast Cable Communications) with the approximate service city.
What ASN does Comcast use?
Comcast uses AS7922 as its primary consumer network ASN. Use ASN Lookup to see what AS7922 announces today.