IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.231.64.0 to 12.231.67.255 | 12.231.64.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.68.0 to 12.231.68.255 | 12.231.68.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.69.0 to 12.231.69.255 | 12.231.69.0/24 | AS18651 | Emanuel Medical Center Inc | See Range |
| 12.231.70.0 to 12.231.71.255 | 12.231.70.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.72.0 to 12.231.79.255 | 12.231.72.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.80.0 to 12.231.95.255 | 12.231.80.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.96.0 to 12.231.97.255 | 12.231.96.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.98.0 to 12.231.98.255 | 12.231.98.0/24 | AS30356 | BLUE CROSS BLUE SHIELD OF MICHIGAN MUTUAL INSURANCE | See Range |
| 12.231.99.0 to 12.231.99.255 | 12.231.99.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.100.0 to 12.231.103.255 | 12.231.100.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.104.0 to 12.231.107.255 | 12.231.104.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.108.0 to 12.231.108.255 | 12.231.108.0/24 | AS23349 | Farmers Group Inc. | See Range |
| 12.231.109.0 to 12.231.109.255 | 12.231.109.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.110.0 to 12.231.111.255 | 12.231.110.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.112.0 to 12.231.127.255 | 12.231.112.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.128.0 to 12.231.143.255 | 12.231.128.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.144.0 to 12.231.147.255 | 12.231.144.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.148.0 to 12.231.149.255 | 12.231.148.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.150.0 to 12.231.150.255 | 12.231.150.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.151.0 to 12.231.151.255 | 12.231.151.0/24 | AS13624 | Sierra Nevada Corporation | See Range |
| 12.231.152.0 to 12.231.153.255 | 12.231.152.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.154.0 to 12.231.154.255 | 12.231.154.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.155.0 to 12.231.155.255 | 12.231.155.0/24 | AS54357 | First Solar Inc. | See Range |
| 12.231.156.0 to 12.231.159.255 | 12.231.156.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.231.160.0 to 12.231.163.255 | 12.231.160.0/22 | AS7018 | AT&T Services Inc. | See Range |
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