Comcast (Xfinity) IP Ranges
Comcast, marketed as Xfinity, is the largest residential internet provider in the United States. It operates a nationwide access network under AS7922 serving tens of millions of home and business subscribers.
- Provider
- Comcast (Xfinity)
- Primary ASN
- AS7922
- Category
- ISP
- Headquarters
- Philadelphia, PA, USA
Known IP ranges
The following IP prefixes are registered to Comcast (Xfinity) or commonly associated with their network. Full 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
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 operates large blocks under AS7922 including 73.0.0.0/8, 24.0.0.0/12, and 96.64.0.0/11. These are dynamically assigned to residential customers. ARIN WHOIS for AS7922 lists the full registered prefixes.
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. The AS7922 page on MyIPScan covers this network.