IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.97.141.0 to 12.97.141.255 | 12.97.141.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.142.0 to 12.97.143.255 | 12.97.142.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.144.0 to 12.97.147.255 | 12.97.144.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.148.0 to 12.97.148.255 | 12.97.148.0/24 | AS4473 | AT&T Corp. | See Range |
| 12.97.149.0 to 12.97.149.255 | 12.97.149.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.150.0 to 12.97.151.255 | 12.97.150.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.152.0 to 12.97.159.255 | 12.97.152.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.160.0 to 12.97.175.255 | 12.97.160.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.176.0 to 12.97.179.255 | 12.97.176.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.180.0 to 12.97.181.255 | 12.97.180.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.182.0 to 12.97.182.255 | 12.97.182.0/24 | AS394041 | Heartflow Inc | See Range |
| 12.97.183.0 to 12.97.183.255 | 12.97.183.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.184.0 to 12.97.191.255 | 12.97.184.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.97.192.0 to 12.97.255.255 | 12.97.192.0/18 | AS7018 | AT&T Services Inc. | See Range |
| 12.98.0.0 to 12.99.255.255 | 12.98.0.0/15 | AS7018 | AT&T Services Inc. | See Range |
| 12.100.0.0 to 12.101.255.255 | 12.100.0.0/15 | AS7018 | AT&T Services Inc. | See Range |
| 12.102.0.0 to 12.102.127.255 | 12.102.0.0/17 | AS7018 | AT&T Services Inc. | See Range |
| 12.102.128.0 to 12.102.191.255 | 12.102.128.0/18 | AS7018 | AT&T Services Inc. | See Range |
| 12.102.192.0 to 12.102.192.255 | 12.102.192.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.102.193.0 to 12.102.193.255 | 12.102.193.0/24 | AS17224 | AT&T Enhanced Network Services | See Range |
| 12.102.194.0 to 12.102.194.255 | 12.102.194.0/24 | AS17224 | AT&T Enhanced Network Services | See Range |
| 12.102.195.0 to 12.102.195.255 | 12.102.195.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.102.196.0 to 12.102.199.255 | 12.102.196.0/22 | AS17224 | AT&T Enhanced Network Services | See Range |
| 12.102.200.0 to 12.102.200.255 | 12.102.200.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.102.201.0 to 12.102.201.255 | 12.102.201.0/24 | AS17224 | AT&T Enhanced Network Services | See Range |
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