AS2386 — INS-AS

AS2386 announces 294 IPv4 prefixes covering 279,296 addresses and 1 IPv6 prefixes.

About this network

INS-AS is an AT&T network, registered to AT&T Data Communications Services and today held under AT&T Enterprises, LLC.

What it's used for

• Enterprise and data-communications networking within AT&T's US operations.

Notable

• A genuinely early allocation, registered with ARIN in 1993, so the low AS number does reflect an early-internet assignment rather than a modern reissue.

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

Announced prefixes

• 12.0.224.0/21
• 12.3.167.0/24
• 12.4.26.0/23
• 12.6.136.0/24
• 12.8.110.0/24
• 12.13.10.0/24
• 12.13.54.0/23
• 12.13.233.0/24
• 12.14.147.0/24
• 12.17.245.0/24
• 12.18.20.0/24
• 12.20.159.0/24
• 12.20.178.0/24
• 12.22.96.0/22
• 12.28.131.0/24
• 12.29.167.0/24
• 12.29.196.0/23
• 12.30.10.0/23
• 12.30.249.0/24
• 12.31.223.0/24
• 12.32.224.0/22
• 12.35.54.0/24
• 12.37.13.0/24
• 12.37.100.0/23
• 12.37.132.0/24
• 12.37.152.0/24
• 12.39.169.0/24
• 12.40.117.0/24
• 12.42.184.0/24
• 12.43.10.0/23
• 12.43.88.0/22
• 12.44.118.0/24
• 12.47.66.0/24
• 12.47.84.0/24
• 12.48.163.0/24
• 12.48.206.0/24
• 12.53.15.0/24
• 12.54.143.0/24
• 12.68.250.0/24
• 12.71.82.0/24
• 12.96.136.0/24
• 12.104.218.0/24
• 12.104.223.0/24
• 12.105.142.0/24
• 12.106.188.0/24
• 12.106.240.0/24
• 12.108.48.0/24
• 12.108.69.0/24
• 12.108.158.0/23
• 12.108.255.0/24
• 12.129.26.0/24
• 12.129.89.0/24
• 12.129.227.0/24
• 12.131.121.0/24
• 12.131.215.0/24
• 12.133.88.0/24
• 12.138.71.0/24
• 12.138.110.0/24
• 12.138.193.0/24
• 12.139.114.0/23
• 12.139.118.0/24
• 12.139.123.0/24
• 12.139.164.0/24
• 12.144.222.0/24
• 12.147.178.0/24
• 12.148.63.0/24
• 12.148.112.0/24
• 12.148.167.0/24
• 12.148.190.0/24
• 12.150.102.0/23
• 12.150.107.0/24
• 12.151.240.0/24
• 12.152.24.0/23
• 12.166.243.0/24
• 12.167.90.0/23
• 12.168.16.0/23
• 12.169.17.0/24
• 12.171.92.0/23
• 12.171.108.0/24
• 12.171.214.0/24
• 12.173.41.0/24
• 12.177.2.0/23
• 12.177.52.0/24
• 12.178.29.0/24
• 12.179.218.0/23
• 12.180.166.0/24
• 12.181.28.0/23
• 12.182.255.0/24
• 12.183.16.0/23
• 12.183.226.0/24
• 12.185.90.0/24
• 12.187.176.0/23
• 12.187.180.0/23
• 12.187.182.0/24
• 12.188.60.0/23
• 12.188.164.0/22
• 12.193.244.0/22
• 12.195.136.0/23
• 12.195.141.0/24
• 12.195.180.0/23

and 195 more.

Upstream networks

• AS7018 AT&T Enterprises, LLC
• AS32787 Akamai Technologies, Inc.
• AS55002 F5, Inc.
• AS3356 Level 3 Parent, LLC
• AS46368 DECCA Cable
• AS33662 Comcast Cable Communications, LLC

Downstream networks

• AS30313 Internal Revenue Service
• AS36224 HCL AMERICA INC
• AS393707 ABM Industries
• AS401191 Blue Star Operations Services LLC
• AS46788 Milwaukee County Government
• AS30152 Pala Band Of Mission Indians
• AS396927 Members Choice Credit Union
• AS11324 BRFHH SHREVEPORT, L.L.C.
• AS203556 IDEMIA POLAND Sp. z o.o.
• AS46511 UNIVERSAL HEALTH SERVICES
• AS400858 ARRIVIA, INC.
• AS36258 GEM SHOPPING NETWORK

Adjacent networks

• AS7018 AT&T Enterprises, LLC
• AS32787 Akamai Technologies, Inc.
• AS30313 Internal Revenue Service
• AS36224 HCL AMERICA INC
• AS55002 F5, Inc.
• AS3356 Level 3 Parent, LLC
• AS393707 ABM Industries
• AS46368 DECCA Cable
• AS33662 Comcast Cable Communications, LLC
• AS401191 Blue Star Operations Services LLC
• AS46788 Milwaukee County Government
• AS30152 Pala Band Of Mission Indians
• AS396927 Members Choice Credit Union
• AS11324 BRFHH SHREVEPORT, L.L.C.
• AS2686 AT&T Enterprises, LLC
• AS203556 IDEMIA POLAND Sp. z o.o.
• AS46511 UNIVERSAL HEALTH SERVICES
• AS400858 ARRIVIA, INC.
• AS36258 GEM SHOPPING NETWORK