Xfinity Internet IP & Network Guide

Comcast Xfinity is the largest broadband cable internet service provider in the United States, providing high-speed cable and fiber to over 32 million customers under AS7922.

Default Router IP

10.0.0.1

Enter in browser address bar to access Wi-Fi admin panel.

Primary & Secondary DNS

75.75.75.75 · 75.75.76.76

Official nameservers assigned automatically via DHCP.

Broadband Speed Profile

50 Mbps – 1.2 Gbps (DOCSIS 3.1 & Gigabit xFi)

Test your real bandwidth with our Speed Test.

Official Xfinity Internet IP Ranges (Subnets)

Reliance on BGP routing announcements means customers receive dynamic public IPs within these registered subnets:

73.0.0.0/867.160.0.0/112601::/20

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