Summary

Country
US United States
Organization AT&T Enterprises, LLC
Domain att.net
Number of IPv4 202,240
Number of IPv6 2.3332× 1026
AS Type ISP
Registry ARIN
Allocated April 12, 1996 (about 29 years ago)
Updated March 18, 2025 (about 1 months ago)

IP Ranges

AS6431 announces 13 IPv4 ranges and 6 IPv6 ranges.

That's a total of 202,240 IPv4 addresses and 2.3332× 1026 IPv6 addresses.

Prefix Organization Size Registry Status
12.106.32.0/23
US ATT SERVICES INC.
512 ARIN REASSIGNMENT
12.106.34.0/24
US ATT SERVICES INC.
256 ARIN REASSIGNMENT
12.106.35.0/24
US ATT SERVICES INC.
256 ARIN REASSIGNMENT
135.197.0.0/17
US AT&T LABS
32,768 ARIN REASSIGNMENT
135.197.128.0/17
US AT&T LABS
32,768 ARIN REASSIGNMENT
135.205.0.0/17
US AT&T Services, Inc.
32,768 ARIN ALLOCATION
135.205.128.0/17
US AT&T Services, Inc.
32,768 ARIN ALLOCATION
135.207.0.0/17
US AT&T Services, Inc.
32,768 ARIN ALLOCATION
135.207.128.0/17
US AT&T Services, Inc.
32,768 ARIN ALLOCATION
192.20.225.0/24
US AT&T Enterprises, LLC
256 ARIN ALLOCATION
204.178.0.0/21
US AT&T Laboratories
2,048 ARIN REASSIGNMENT
204.178.8.0/21
US AT&T Laboratories
2,048 ARIN REASSIGNMENT
207.140.168.0/24
US ATT SERVICES INC.
256 ARIN REASSIGNMENT
Prefix Organization Size Registry Status
2620:0:f00::/41
US AT&T Enterprises, LLC
1.5474× 1026 ARIN ALLOCATION
2620:0:f01::/48
US AT&T Enterprises, LLC
1.2089× 1024 ARIN ALLOCATION
2620:0:f40::/44
US AT&T Enterprises, LLC
1.9343× 1025 ARIN ALLOCATION
2620:0:f50::/44
US AT&T Enterprises, LLC
1.9343× 1025 ARIN ALLOCATION
2620:0:f60::/44
US AT&T Enterprises, LLC
1.9343× 1025 ARIN ALLOCATION
2620:0:f70::/44
US AT&T Enterprises, LLC
1.9343× 1025 ARIN ALLOCATION

Peers

AS6431 does not have any direct peering agreements. Instead, its global connectivity is achieved through transit providers. While this setup ensures comprehensive reach, future peering could reduce latency and optimize route efficiency.

Upstreams

AS6431 connects to the global Internet via at least 1 upstream provider. In this setup, AS6431 acts as a customer, subscribing to these transit services to obtain full BGP routing information and ensure reliable, redundant access to external networks.

Downstreams

AS6431 currently has no downstream networks, meaning it does not serve as a transit provider to customer networks.

Get started with 100,000 free lookups: sign up