IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.239.6.0 to 12.239.6.255 | 12.239.6.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.7.0 to 12.239.7.255 | 12.239.7.0/24 | AS13659 | InterTECH Corp | See Range |
| 12.239.8.0 to 12.239.15.255 | 12.239.8.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.16.0 to 12.239.31.255 | 12.239.16.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.32.0 to 12.239.47.255 | 12.239.32.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.48.0 to 12.239.51.255 | 12.239.48.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.52.0 to 12.239.52.255 | 12.239.52.0/24 | AS19524 | Comerica Incorporated | See Range |
| 12.239.53.0 to 12.239.53.255 | 12.239.53.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.54.0 to 12.239.55.255 | 12.239.54.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.56.0 to 12.239.63.255 | 12.239.56.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.64.0 to 12.239.95.255 | 12.239.64.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.96.0 to 12.239.111.255 | 12.239.96.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.112.0 to 12.239.115.255 | 12.239.112.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.116.0 to 12.239.117.255 | 12.239.116.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.118.0 to 12.239.119.255 | 12.239.118.0/23 | AS2386 | AT&T Data Communications Services | See Range |
| 12.239.120.0 to 12.239.123.255 | 12.239.120.0/22 | AS40885 | E2Open LLC | See Range |
| 12.239.124.0 to 12.239.127.255 | 12.239.124.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.128.0 to 12.239.135.255 | 12.239.128.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.136.0 to 12.239.136.255 | 12.239.136.0/24 | AS2386 | AT&T Data Communications Services | See Range |
| 12.239.137.0 to 12.239.137.255 | 12.239.137.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.138.0 to 12.239.139.255 | 12.239.138.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.140.0 to 12.239.143.255 | 12.239.140.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.144.0 to 12.239.159.255 | 12.239.144.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.160.0 to 12.239.191.255 | 12.239.160.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.239.192.0 to 12.239.207.255 | 12.239.192.0/20 | AS7018 | AT&T Services Inc. | See Range |
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