IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.166.44.0 to 12.166.45.255 | 12.166.44.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.46.0 to 12.166.46.255 | 12.166.46.0/24 | AS393485 | Tiffany and Company | See Range |
| 12.166.47.0 to 12.166.47.255 | 12.166.47.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.48.0 to 12.166.55.255 | 12.166.48.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.56.0 to 12.166.59.255 | 12.166.56.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.60.0 to 12.166.60.255 | 12.166.60.0/24 | AS33347 | NAVICENT HEALTH | See Range |
| 12.166.61.0 to 12.166.61.255 | 12.166.61.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.62.0 to 12.166.63.255 | 12.166.62.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.64.0 to 12.166.95.255 | 12.166.64.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.96.0 to 12.166.103.255 | 12.166.96.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.104.0 to 12.166.107.255 | 12.166.104.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.108.0 to 12.166.108.255 | 12.166.108.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.109.0 to 12.166.109.255 | 12.166.109.0/24 | AS20358 | Sugar Shack LLC | See Range |
| 12.166.110.0 to 12.166.111.255 | 12.166.110.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.112.0 to 12.166.127.255 | 12.166.112.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.128.0 to 12.166.135.255 | 12.166.128.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.136.0 to 12.166.137.255 | 12.166.136.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.138.0 to 12.166.138.255 | 12.166.138.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.139.0 to 12.166.139.255 | 12.166.139.0/24 | AS398337 | Community Internet Providers LLC | See Range |
| 12.166.140.0 to 12.166.143.255 | 12.166.140.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.144.0 to 12.166.159.255 | 12.166.144.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.160.0 to 12.166.191.255 | 12.166.160.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.192.0 to 12.166.195.255 | 12.166.192.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.166.196.0 to 12.166.199.255 | 12.166.196.0/22 | AS11966 | Global Data Systems Inc. | See Range |
| 12.166.200.0 to 12.166.207.255 | 12.166.200.0/21 | AS7018 | AT&T Services Inc. | See Range |
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