IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.171.214.0 to 12.171.214.255 | 12.171.214.0/24 | AS2386 | AT&T Data Communications Services | See Range |
| 12.171.215.0 to 12.171.215.255 | 12.171.215.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.171.216.0 to 12.171.223.255 | 12.171.216.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.171.224.0 to 12.171.225.255 | 12.171.224.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.171.226.0 to 12.171.226.255 | 12.171.226.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.171.227.0 to 12.171.227.255 | 12.171.227.0/24 | AS398189 | NFocus Consulting Inc. | See Range |
| 12.171.228.0 to 12.171.231.255 | 12.171.228.0/22 | AS40098 | Community Antenna Service Inc. | See Range |
| 12.171.232.0 to 12.171.235.255 | 12.171.232.0/22 | AS40098 | Community Antenna Service Inc. | See Range |
| 12.171.236.0 to 12.171.239.255 | 12.171.236.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.171.240.0 to 12.171.243.255 | 12.171.240.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.171.244.0 to 12.171.247.255 | 12.171.244.0/22 | AS27202 | City of Bardstown Kentucky | See Range |
| 12.171.248.0 to 12.171.255.255 | 12.171.248.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.0.0 to 12.172.31.255 | 12.172.0.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.32.0 to 12.172.35.255 | 12.172.32.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.36.0 to 12.172.37.255 | 12.172.36.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.38.0 to 12.172.38.255 | 12.172.38.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.39.0 to 12.172.39.255 | 12.172.39.0/24 | AS32326 | MorphoTrust USA Inc. | See Range |
| 12.172.40.0 to 12.172.43.255 | 12.172.40.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.44.0 to 12.172.47.255 | 12.172.44.0/22 | AS11066 | XPO Logistics Inc | See Range |
| 12.172.48.0 to 12.172.63.255 | 12.172.48.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.64.0 to 12.172.65.255 | 12.172.64.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.66.0 to 12.172.66.255 | 12.172.66.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.67.0 to 12.172.67.255 | 12.172.67.0/24 | AS27015 | Fresenius Medical Care Holdings Inc | See Range |
| 12.172.68.0 to 12.172.71.255 | 12.172.68.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.172.72.0 to 12.172.73.255 | 12.172.72.0/23 | AS7018 | AT&T Services Inc. | See Range |
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