IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.129.115.0 to 12.129.115.255 | 12.129.115.0/24 | AS17228 | AT&T Enhanced Network Services | See Range |
| 12.129.116.0 to 12.129.119.255 | 12.129.116.0/22 | AS17228 | AT&T Enhanced Network Services | See Range |
| 12.129.120.0 to 12.129.127.255 | 12.129.120.0/21 | AS17228 | AT&T Enhanced Network Services | See Range |
| 12.129.128.0 to 12.129.128.255 | 12.129.128.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.129.0 to 12.129.129.255 | 12.129.129.0/24 | AS17349 | Insitu Inc | See Range |
| 12.129.130.0 to 12.129.131.255 | 12.129.130.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.132.0 to 12.129.135.255 | 12.129.132.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.136.0 to 12.129.143.255 | 12.129.136.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.144.0 to 12.129.151.255 | 12.129.144.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.152.0 to 12.129.155.255 | 12.129.152.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.156.0 to 12.129.157.255 | 12.129.156.0/23 | AS29944 | Latisys-Ashburn LLC | See Range |
| 12.129.158.0 to 12.129.159.255 | 12.129.158.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.160.0 to 12.129.160.255 | 12.129.160.0/24 | AS23189 | O.Shaughnessy Asset Management LLC | See Range |
| 12.129.161.0 to 12.129.161.255 | 12.129.161.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.162.0 to 12.129.163.255 | 12.129.162.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.164.0 to 12.129.167.255 | 12.129.164.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.168.0 to 12.129.171.255 | 12.129.168.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.172.0 to 12.129.172.255 | 12.129.172.0/24 | AS46803 | GTCR Golder Rauner LLC | See Range |
| 12.129.173.0 to 12.129.173.255 | 12.129.173.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.174.0 to 12.129.175.255 | 12.129.174.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.176.0 to 12.129.176.255 | 12.129.176.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.177.0 to 12.129.177.255 | 12.129.177.0/24 | AS22840 | ATC IP LLC | See Range |
| 12.129.178.0 to 12.129.179.255 | 12.129.178.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.180.0 to 12.129.183.255 | 12.129.180.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.129.184.0 to 12.129.191.255 | 12.129.184.0/21 | AS7018 | AT&T Services Inc. | See Range |
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