IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.96.138.0 to 12.96.139.255 | 12.96.138.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.96.140.0 to 12.96.143.255 | 12.96.140.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.96.144.0 to 12.96.159.255 | 12.96.144.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.96.160.0 to 12.96.167.255 | 12.96.160.0/21 | AS36351 | SoftLayer Technologies Inc. | See Range |
| 12.96.168.0 to 12.96.169.255 | 12.96.168.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.96.170.0 to 12.96.170.255 | 12.96.170.0/24 | AS13461 | The Options Clearing Corporation | See Range |
| 12.96.171.0 to 12.96.171.255 | 12.96.171.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.96.172.0 to 12.96.175.255 | 12.96.172.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.96.176.0 to 12.96.191.255 | 12.96.176.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.96.192.0 to 12.96.255.255 | 12.96.192.0/18 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.0.0 to 12.97.63.255 | 12.97.0.0/18 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.64.0 to 12.97.65.255 | 12.97.64.0/23 | AS393508 | Personal Network Computing | See Range |
| 12.97.66.0 to 12.97.66.255 | 12.97.66.0/24 | AS393508 | Personal Network Computing | See Range |
| 12.97.67.0 to 12.97.67.255 | 12.97.67.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.68.0 to 12.97.68.255 | 12.97.68.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.69.0 to 12.97.69.255 | 12.97.69.0/24 | AS62721 | Aechelon Technology Inc. | See Range |
| 12.97.70.0 to 12.97.71.255 | 12.97.70.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.72.0 to 12.97.79.255 | 12.97.72.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.80.0 to 12.97.95.255 | 12.97.80.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.96.0 to 12.97.127.255 | 12.97.96.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.128.0 to 12.97.129.255 | 12.97.128.0/23 | AS21945 | Harland Clarke Corp. | See Range |
| 12.97.130.0 to 12.97.131.255 | 12.97.130.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.132.0 to 12.97.135.255 | 12.97.132.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.136.0 to 12.97.139.255 | 12.97.136.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.140.0 to 12.97.140.255 | 12.97.140.0/24 | AS62747 | DirecTV LLC | See Range |
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