AT&T IP Ranges
AT&T is one of the largest telecommunications and internet providers in the United States, operating fiber, DSL, and mobile networks under AS7018 across the country.
- Provider
- AT&T
- Primary ASN
- AS7018
- Category
- ISP
- Headquarters
- Dallas, TX, USA
Known IP ranges
The following IP prefixes are registered to AT&T or commonly associated with their network. Full prefix sets change over time — use WHOIS Lookup for the authoritative current record for any specific IP.
12.0.0.0/8
99.0.0.0/12
108.64.0.0/10
45.16.0.0/12
74.160.0.0/12
What does a AT&T IP mean in a privacy test?
An AT&T IP (AS7018) as your visible address means you are connecting through an AT&T internet or mobile line with no VPN active. If you expected a VPN exit, seeing AT&T means your traffic is not going through the tunnel.
Related tools
Frequently asked questions
What IP ranges does AT&T use?
AT&T operates the legacy 12.0.0.0/8 block plus ranges such as 99.0.0.0/12 and 108.64.0.0/10 under AS7018. ARIN WHOIS for AS7018 provides the authoritative current prefix list.
Why does my IP show AT&T?
If your visible IP returns AS7018 (AT&T), your traffic exits through an AT&T line. This is expected with no VPN active. A working VPN changes your visible ASN to the VPN provider.
Does AT&T offer static IP addresses?
AT&T business fiber plans offer static IP options, while residential connections typically use dynamic addresses. Both fall within AT&T AS7018 ranges.
How do I look up an AT&T IP address?
Use MyIPScan IP Geolocation Lookup. AT&T IPs return AS7018 (AT&T Services) with the service area city.
What ASN does AT&T use?
AT&T uses AS7018 for its primary US internet backbone. The AS7018 page on MyIPScan covers this network.