2600:380:5800::/38

Currently announced by AS20057 AT&T Enterprises, LLC, in the routed prefix 2600:380:5800::/38.

Current ASN
AS20057
AT&T Enterprises, LLC
Routed prefix
2600:380:5800::/38
Most specific route covering this prefix
ASNs over time
2
2 announcement records
RIR allocation
ARIN
United States · 2600:300::/24

Routing data · Oct 24, 2026, 06:23 UTC

ASN historyEvery routed prefix covering 2600:380:5800::/38

PrefixASNNameRegistered countryFirst seen (UTC)Last seen (UTC)Status
2600:380:5800::/38AS20057AT&T Enterprises, LLCUnited StatesBefore monitoring2026-10-24 06:23Announcing
2600:300::/24AS7018AT&T US - 7018United StatesBefore monitoring2026-10-24 06:23Announcing

More specific routes6 total

PrefixASNNameRegistered countryFirst seen (UTC)Last seen (UTC)Status
2600:380:5800::/41AS20057AT&T Enterprises, LLCUnited StatesBefore monitoring2026-10-24 06:23Announcing
2600:380:5880::/41AS20057AT&T Enterprises, LLCUnited StatesBefore monitoring2026-10-24 06:23Announcing
2600:380:5900::/41AS20057AT&T Enterprises, LLCUnited StatesBefore monitoring2026-10-24 06:23Announcing
2600:380:5980::/41AS20057AT&T Enterprises, LLCUnited StatesBefore monitoring2026-10-24 06:23Announcing
2600:380:5a00::/41AS20057AT&T Enterprises, LLCUnited StatesBefore monitoring2026-10-24 06:23Announcing
2600:380:5a80::/41AS20057AT&T Enterprises, LLCUnited StatesBefore monitoring2026-10-24 06:23Announcing

Change logAll changes

The routes covering this address have had no origin changes since ASNBase started monitoring.