IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.10.192.0 to 12.10.207.255 | 12.10.192.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.10.208.0 to 12.10.215.255 | 12.10.208.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.10.216.0 to 12.10.216.255 | 12.10.216.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.10.217.0 to 12.10.217.255 | 12.10.217.0/24 | AS22610 | Coventry Health Care Inc. | See Range |
| 12.10.218.0 to 12.10.218.255 | 12.10.218.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.10.219.0 to 12.10.219.255 | 12.10.219.0/24 | AS6307 | American Express Company | See Range |
| 12.10.220.0 to 12.10.223.255 | 12.10.220.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.10.224.0 to 12.10.255.255 | 12.10.224.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.0.0 to 12.11.31.255 | 12.11.0.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.32.0 to 12.11.39.255 | 12.11.32.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.40.0 to 12.11.43.255 | 12.11.40.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.44.0 to 12.11.45.255 | 12.11.44.0/23 | AS396116 | Community Cable and Broadband LLC | See Range |
| 12.11.46.0 to 12.11.47.255 | 12.11.46.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.48.0 to 12.11.63.255 | 12.11.48.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.64.0 to 12.11.95.255 | 12.11.64.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.96.0 to 12.11.111.255 | 12.11.96.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.112.0 to 12.11.113.255 | 12.11.112.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.114.0 to 12.11.114.255 | 12.11.114.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.115.0 to 12.11.115.255 | 12.11.115.0/24 | AS393300 | Cato Corporation | See Range |
| 12.11.116.0 to 12.11.119.255 | 12.11.116.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.120.0 to 12.11.127.255 | 12.11.120.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.128.0 to 12.11.143.255 | 12.11.128.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.144.0 to 12.11.147.255 | 12.11.144.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.11.148.0 to 12.11.151.255 | 12.11.148.0/22 | AS14267 | PTC | See Range |
| 12.11.152.0 to 12.11.159.255 | 12.11.152.0/21 | AS7018 | AT&T Services Inc. | See Range |
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