AS20057 — AT&T
AT&T Mobility.
- ASN
- AS20057
- Operator
- AT&T
- Country
- United States
Live registration lookup
Questions
Who operates AS20057?
AS20057 is registered as AT&T, United States. AT&T Mobility.
Which country is listed?
We publish United States for AT&T. The live RDAP card shows the registry name returned when you load the page.
How is this different from an IP lookup?
An ASN is the whole network. An IP lookup is one address inside some network. IP pages link here when we know the ASN.