IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.28.168.0 to 12.28.171.255 | 12.28.168.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.172.0 to 12.28.173.255 | 12.28.172.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.174.0 to 12.28.174.255 | 12.28.174.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.175.0 to 12.28.175.255 | 12.28.175.0/24 | AS394795 | Communication Solutions LLC | See Range |
| 12.28.176.0 to 12.28.191.255 | 12.28.176.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.192.0 to 12.28.195.255 | 12.28.192.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.196.0 to 12.28.196.255 | 12.28.196.0/24 | AS19449 | Concurrent Technologies Corp. | See Range |
| 12.28.197.0 to 12.28.197.255 | 12.28.197.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.198.0 to 12.28.199.255 | 12.28.198.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.200.0 to 12.28.207.255 | 12.28.200.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.208.0 to 12.28.223.255 | 12.28.208.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.28.224.0 to 12.28.255.255 | 12.28.224.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.0.0 to 12.29.31.255 | 12.29.0.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.32.0 to 12.29.39.255 | 12.29.32.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.40.0 to 12.29.41.255 | 12.29.40.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.42.0 to 12.29.42.255 | 12.29.42.0/24 | AS16873 | Hart Systems Inc | See Range |
| 12.29.43.0 to 12.29.43.255 | 12.29.43.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.44.0 to 12.29.47.255 | 12.29.44.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.48.0 to 12.29.63.255 | 12.29.48.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.64.0 to 12.29.95.255 | 12.29.64.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.96.0 to 12.29.99.255 | 12.29.96.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.100.0 to 12.29.101.255 | 12.29.100.0/23 | AS6307 | American Express Company | See Range |
| 12.29.102.0 to 12.29.102.255 | 12.29.102.0/24 | AS6307 | American Express Company | See Range |
| 12.29.103.0 to 12.29.103.255 | 12.29.103.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.29.104.0 to 12.29.111.255 | 12.29.104.0/21 | AS7018 | AT&T Services Inc. | See Range |
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