IPv4 AS Names Directory: AS Name AT&T Enhanced Network Services
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.64.144.0 to 12.64.147.255 | 12.64.144.0/22 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.64.148.0 to 12.64.149.255 | 12.64.148.0/23 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.64.152.0 to 12.64.155.255 | 12.64.152.0/22 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.64.156.0 to 12.64.157.255 | 12.64.156.0/23 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.66.32.0 to 12.66.47.255 | 12.66.32.0/20 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.66.62.0 to 12.66.62.255 | 12.66.62.0/24 | AS17227 | AT&T Enhanced Network Services | See Range |
| 12.66.63.0 to 12.66.63.255 | 12.66.63.0/24 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.66.64.0 to 12.66.67.255 | 12.66.64.0/22 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.66.69.0 to 12.66.69.255 | 12.66.69.0/24 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.66.70.0 to 12.66.71.255 | 12.66.70.0/23 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.66.85.0 to 12.66.85.255 | 12.66.85.0/24 | AS17227 | AT&T Enhanced Network Services | See Range |
| 12.66.86.0 to 12.66.87.255 | 12.66.86.0/23 | AS17227 | AT&T Enhanced Network Services | See Range |
| 12.66.88.0 to 12.66.95.255 | 12.66.88.0/21 | AS17227 | AT&T Enhanced Network Services | See Range |
| 12.66.96.0 to 12.66.103.255 | 12.66.96.0/21 | AS17227 | AT&T Enhanced Network Services | See Range |
| 12.66.104.0 to 12.66.105.255 | 12.66.104.0/23 | AS17227 | AT&T Enhanced Network Services | See Range |
| 12.67.0.0 to 12.67.0.255 | 12.67.0.0/24 | AS17229 | AT&T Enhanced Network Services | See Range |
| 12.67.5.0 to 12.67.5.255 | 12.67.5.0/24 | AS17227 | AT&T Enhanced Network Services | See Range |
| 12.67.6.0 to 12.67.6.255 | 12.67.6.0/24 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.67.7.0 to 12.67.7.255 | 12.67.7.0/24 | AS17233 | AT&T Enhanced Network Services | See Range |
| 12.67.9.0 to 12.67.9.255 | 12.67.9.0/24 | AS17231 | AT&T Enhanced Network Services | See Range |
| 12.67.12.0 to 12.67.12.255 | 12.67.12.0/24 | AS17226 | AT&T Enhanced Network Services | See Range |
| 12.67.13.0 to 12.67.13.255 | 12.67.13.0/24 | AS17229 | AT&T Enhanced Network Services | See Range |
| 12.102.193.0 to 12.102.193.255 | 12.102.193.0/24 | AS17224 | AT&T Enhanced Network Services | See Range |
| 12.102.194.0 to 12.102.194.255 | 12.102.194.0/24 | AS17224 | AT&T Enhanced Network Services | See Range |
| 12.102.196.0 to 12.102.199.255 | 12.102.196.0/22 | AS17224 | AT&T Enhanced Network Services | See Range |
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