IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.156.96.0 to 12.156.127.255 | 12.156.96.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.128.0 to 12.156.135.255 | 12.156.128.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.136.0 to 12.156.139.255 | 12.156.136.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.140.0 to 12.156.141.255 | 12.156.140.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.142.0 to 12.156.143.255 | 12.156.142.0/23 | AS395500 | Wilson Creek Communications LLC | See Range |
| 12.156.144.0 to 12.156.151.255 | 12.156.144.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.152.0 to 12.156.155.255 | 12.156.152.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.156.0 to 12.156.157.255 | 12.156.156.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.158.0 to 12.156.158.255 | 12.156.158.0/24 | AS46756 | Freeman Health System | See Range |
| 12.156.159.0 to 12.156.159.255 | 12.156.159.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.160.0 to 12.156.191.255 | 12.156.160.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.192.0 to 12.156.192.255 | 12.156.192.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.193.0 to 12.156.193.255 | 12.156.193.0/24 | AS32512 | American Public Health Association | See Range |
| 12.156.194.0 to 12.156.195.255 | 12.156.194.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.196.0 to 12.156.199.255 | 12.156.196.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.200.0 to 12.156.207.255 | 12.156.200.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.208.0 to 12.156.223.255 | 12.156.208.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.156.224.0 to 12.156.255.255 | 12.156.224.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.157.0.0 to 12.157.31.255 | 12.157.0.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.157.32.0 to 12.157.47.255 | 12.157.32.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.157.48.0 to 12.157.51.255 | 12.157.48.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.157.52.0 to 12.157.53.255 | 12.157.52.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.157.54.0 to 12.157.54.255 | 12.157.54.0/24 | AS2386 | AT&T Data Communications Services | See Range |
| 12.157.55.0 to 12.157.55.255 | 12.157.55.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.157.56.0 to 12.157.63.255 | 12.157.56.0/21 | AS7018 | AT&T Services Inc. | See Range |
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