AS797 — AMERITECH-AS

AS797 announces 18 IPv4 prefixes covering 170,752 addresses and 0 IPv6 prefixes.

About this network

Ameritech (AMERITECH-AS), one of the "Baby Bell" regional telephone companies that served the US Midwest after the breakup of AT&T.

What it's used for

• Legacy telecommunications and network operations. Ameritech was later absorbed into SBC Communications, now part of AT&T.

Notable

• A corporate telecom network from the internet's early years; the low AS number reflects an early allocation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 12.153.241.0/24
• 67.98.173.0/24
• 135.209.64.0/18
• 135.209.146.0/23
• 135.209.148.0/22
• 135.209.152.0/22
• 135.209.156.0/24
• 135.209.158.0/23
• 135.209.160.0/21
• 135.209.168.0/24
• 135.209.208.0/20
• 135.209.224.0/20
• 144.160.0.0/15
• 170.35.208.0/20
• 170.35.224.0/20
• 192.150.169.0/24
• 198.180.219.0/24
• 204.107.19.0/24

Upstream networks

• AS7018 AT&T Enterprises, LLC

Downstream networks

• AS11712 AT&T Services, Inc.

Adjacent networks

• AS7018 AT&T Enterprises, LLC
• AS11712 AT&T Services, Inc.