IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.107.144.0 to 12.107.159.255 | 12.107.144.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.160.0 to 12.107.167.255 | 12.107.160.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.168.0 to 12.107.171.255 | 12.107.168.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.172.0 to 12.107.172.255 | 12.107.172.0/24 | AS30356 | Blue Cross Blue Shield Of Michigan Mutual Insurance | See Range |
| 12.107.173.0 to 12.107.173.255 | 12.107.173.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.174.0 to 12.107.175.255 | 12.107.174.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.176.0 to 12.107.177.255 | 12.107.176.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.178.0 to 12.107.178.255 | 12.107.178.0/24 | AS33311 | Topcon Positioning Systems Inc | See Range |
| 12.107.179.0 to 12.107.179.255 | 12.107.179.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.180.0 to 12.107.183.255 | 12.107.180.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.184.0 to 12.107.185.255 | 12.107.184.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.186.0 to 12.107.186.255 | 12.107.186.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.187.0 to 12.107.187.255 | 12.107.187.0/24 | AS18539 | Dayton Superior Corporation | See Range |
| 12.107.188.0 to 12.107.188.255 | 12.107.188.0/24 | AS40934 | Fortinet Inc. | See Range |
| 12.107.189.0 to 12.107.189.255 | 12.107.189.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.190.0 to 12.107.191.255 | 12.107.190.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.192.0 to 12.107.199.255 | 12.107.192.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.200.0 to 12.107.203.255 | 12.107.200.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.204.0 to 12.107.205.255 | 12.107.204.0/23 | AS2386 | AT&T Data Communications Services | See Range |
| 12.107.206.0 to 12.107.207.255 | 12.107.206.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.208.0 to 12.107.215.255 | 12.107.208.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.216.0 to 12.107.217.255 | 12.107.216.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.218.0 to 12.107.218.255 | 12.107.218.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.107.219.0 to 12.107.219.255 | 12.107.219.0/24 | AS55083 | Numerex Corp | See Range |
| 12.107.220.0 to 12.107.223.255 | 12.107.220.0/22 | AS7018 | AT&T Services Inc. | See Range |
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