IPv4 AS & ASN Directory
| IP Range | CIDR | ASN | AS Name | |
|---|---|---|---|---|
| 12.203.152.0 to 12.203.155.255 | 12.203.152.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.156.0 to 12.203.157.255 | 12.203.156.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.158.0 to 12.203.158.255 | 12.203.158.0/24 | AS395941 | EAGLE TECHNOLOGIES INCORPORATED | See Range |
| 12.203.159.0 to 12.203.159.255 | 12.203.159.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.160.0 to 12.203.160.255 | 12.203.160.0/24 | AS54834 | Custom Data Processing | See Range |
| 12.203.161.0 to 12.203.161.255 | 12.203.161.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.162.0 to 12.203.163.255 | 12.203.162.0/23 | AS18641 | Data Consultants Corp | See Range |
| 12.203.164.0 to 12.203.164.255 | 12.203.164.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.165.0 to 12.203.165.255 | 12.203.165.0/24 | AS2386 | AT&T Data Communications Services | See Range |
| 12.203.166.0 to 12.203.167.255 | 12.203.166.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.168.0 to 12.203.168.255 | 12.203.168.0/24 | AS398026 | Indianapolis Airport Authority | See Range |
| 12.203.169.0 to 12.203.169.255 | 12.203.169.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.170.0 to 12.203.171.255 | 12.203.170.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.172.0 to 12.203.175.255 | 12.203.172.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.176.0 to 12.203.191.255 | 12.203.176.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.192.0 to 12.203.195.255 | 12.203.192.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.196.0 to 12.203.196.255 | 12.203.196.0/24 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.197.0 to 12.203.197.255 | 12.203.197.0/24 | AS22034 | McMaster Carr Supply Company | See Range |
| 12.203.198.0 to 12.203.199.255 | 12.203.198.0/23 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.200.0 to 12.203.207.255 | 12.203.200.0/21 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.208.0 to 12.203.223.255 | 12.203.208.0/20 | AS7018 | AT&T Services Inc. | See Range |
| 12.203.224.0 to 12.203.255.255 | 12.203.224.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.204.0.0 to 12.204.31.255 | 12.204.0.0/19 | AS7018 | AT&T Services Inc. | See Range |
| 12.204.32.0 to 12.204.35.255 | 12.204.32.0/22 | AS7018 | AT&T Services Inc. | See Range |
| 12.204.36.0 to 12.204.36.255 | 12.204.36.0/24 | AS7018 | AT&T Services Inc. | See Range |
Page 650 of 22.832