AS19957 AT&T Enterprises LLC
IP Address Ranges
| Netblock | From IP | To IP | Number of IPs | |
|---|---|---|---|---|
| 12.165.35.0/24 | 12.165.35.0 | 12.165.35.255 | 256 | |
| 12.204.192.0/21 | 12.204.192.0 | 12.204.199.255 | 2,048 | |
| 12.204.201.0/24 | 12.204.201.0 | 12.204.201.255 | 256 | |
| 12.204.202.0/23 | 12.204.202.0 | 12.204.203.255 | 512 | |
| 12.204.204.0/23 | 12.204.204.0 | 12.204.205.255 | 512 | |
| 12.204.206.0/24 | 12.204.206.0 | 12.204.206.255 | 256 | |
| 12.204.207.0/24 | 12.204.207.0 | 12.204.207.255 | 256 | |
| 12.204.208.0/24 | 12.204.208.0 | 12.204.208.255 | 256 | |
| 12.204.209.0/24 | 12.204.209.0 | 12.204.209.255 | 256 | |
| 12.204.210.0/23 | 12.204.210.0 | 12.204.211.255 | 512 | |
| 12.204.212.0/22 | 12.204.212.0 | 12.204.215.255 | 1,024 | |
| 12.204.216.0/21 | 12.204.216.0 | 12.204.223.255 | 2,048 | |
| 12.230.239.0/24 | 12.230.239.0 | 12.230.239.255 | 256 | |
| 64.79.182.0/23 | 64.79.182.0 | 64.79.183.255 | 512 | |
| 65.82.99.0/24 | 65.82.99.0 | 65.82.99.255 | 256 | |
| 66.4.0.0/21 | 66.4.0.0 | 66.4.7.255 | 2,048 | |
| 66.4.8.0/24 | 66.4.8.0 | 66.4.8.255 | 256 | |
| 66.4.9.0/24 | 66.4.9.0 | 66.4.9.255 | 256 | |
| 66.4.10.0/23 | 66.4.10.0 | 66.4.11.255 | 512 | |
| 66.4.12.0/23 | 66.4.12.0 | 66.4.13.255 | 512 | |
| 66.4.14.0/23 | 66.4.14.0 | 66.4.15.255 | 512 | |
| 66.4.16.0/23 | 66.4.16.0 | 66.4.17.255 | 512 | |
| 66.4.18.0/24 | 66.4.18.0 | 66.4.18.255 | 256 | |
| 66.4.19.0/24 | 66.4.19.0 | 66.4.19.255 | 256 | |
| 66.4.20.0/22 | 66.4.20.0 | 66.4.23.255 | 1,024 | |
| 66.4.24.0/23 | 66.4.24.0 | 66.4.25.255 | 512 | |
| 66.4.26.0/24 | 66.4.26.0 | 66.4.26.255 | 256 | |
| 66.4.27.0/24 | 66.4.27.0 | 66.4.27.255 | 256 | |
| 66.4.28.0/22 | 66.4.28.0 | 66.4.31.255 | 1,024 | |
| 66.4.32.0/23 | 66.4.32.0 | 66.4.33.255 | 512 | |
| 66.4.34.0/23 | 66.4.34.0 | 66.4.35.255 | 512 | |
| 66.4.36.0/23 | 66.4.36.0 | 66.4.37.255 | 512 | |
| 66.4.38.0/24 | 66.4.38.0 | 66.4.38.255 | 256 | |
| 66.4.39.0/24 | 66.4.39.0 | 66.4.39.255 | 256 | |
| 66.4.40.0/24 | 66.4.40.0 | 66.4.40.255 | 256 | |
| 66.4.41.0/24 | 66.4.41.0 | 66.4.41.255 | 256 | |
| 66.4.42.0/23 | 66.4.42.0 | 66.4.43.255 | 512 | |
| 66.4.44.0/22 | 66.4.44.0 | 66.4.47.255 | 1,024 | |
| 66.4.48.0/21 | 66.4.48.0 | 66.4.55.255 | 2,048 | |
| 66.4.56.0/22 | 66.4.56.0 | 66.4.59.255 | 1,024 | |
| 66.4.60.0/23 | 66.4.60.0 | 66.4.61.255 | 512 | |
| 66.4.62.0/23 | 66.4.62.0 | 66.4.63.255 | 512 | |
| 66.4.64.0/21 | 66.4.64.0 | 66.4.71.255 | 2,048 | |
| 66.4.72.0/22 | 66.4.72.0 | 66.4.75.255 | 1,024 | |
| 66.4.76.0/23 | 66.4.76.0 | 66.4.77.255 | 512 | |
| 66.4.78.0/24 | 66.4.78.0 | 66.4.78.255 | 256 | |
| 66.4.79.0/24 | 66.4.79.0 | 66.4.79.255 | 256 | |
| 66.4.80.0/24 | 66.4.80.0 | 66.4.80.255 | 256 | |
| 66.4.81.0/24 | 66.4.81.0 | 66.4.81.255 | 256 | |
| 66.4.82.0/23 | 66.4.82.0 | 66.4.83.255 | 512 | |
| 66.4.84.0/22 | 66.4.84.0 | 66.4.87.255 | 1,024 | |
| 66.4.88.0/21 | 66.4.88.0 | 66.4.95.255 | 2,048 | |
| 66.4.96.0/20 | 66.4.96.0 | 66.4.111.255 | 4,096 | |
| 66.4.112.0/21 | 66.4.112.0 | 66.4.119.255 | 2,048 | |
| 66.4.120.0/22 | 66.4.120.0 | 66.4.123.255 | 1,024 | |
| 66.4.124.0/24 | 66.4.124.0 | 66.4.124.255 | 256 | |
| 66.4.125.0/24 | 66.4.125.0 | 66.4.125.255 | 256 | |
| 66.4.126.0/24 | 66.4.126.0 | 66.4.126.255 | 256 | |
| 66.4.127.0/24 | 66.4.127.0 | 66.4.127.255 | 256 | |
| 66.4.128.0/17 | 66.4.128.0 | 66.4.255.255 | 32,768 | |
| 68.156.24.0/23 | 68.156.24.0 | 68.156.25.255 | 512 | |
| 68.156.26.0/23 | 68.156.26.0 | 68.156.27.255 | 512 | |
| 68.156.28.0/23 | 68.156.28.0 | 68.156.29.255 | 512 | |
| 68.156.30.0/23 | 68.156.30.0 | 68.156.31.255 | 512 | |
| 70.150.21.0/24 | 70.150.21.0 | 70.150.21.255 | 256 | |
| 70.150.247.0/24 | 70.150.247.0 | 70.150.247.255 | 256 | |
| 70.150.248.0/21 | 70.150.248.0 | 70.150.255.255 | 2,048 | |
| 70.158.144.0/20 | 70.158.144.0 | 70.158.159.255 | 4,096 | |
| 72.158.184.0/24 | 72.158.184.0 | 72.158.184.255 | 256 | |
| 72.159.76.0/24 | 72.159.76.0 | 72.159.76.255 | 256 | |
| 74.252.160.0/20 | 74.252.160.0 | 74.252.175.255 | 4,096 | |
| 74.254.176.0/22 | 74.254.176.0 | 74.254.179.255 | 1,024 | |
| 74.254.180.0/24 | 74.254.180.0 | 74.254.180.255 | 256 | |
| 170.141.56.0/23 | 170.141.56.0 | 170.141.57.255 | 512 | |
| 170.141.60.0/23 | 170.141.60.0 | 170.141.61.255 | 512 | |
| 198.146.0.0/16 | 198.146.0.0 | 198.146.255.255 | 65,536 | |
| 206.23.0.0/16 | 206.23.0.0 | 206.23.255.255 | 65,536 | |
| 208.63.128.0/24 | 208.63.128.0 | 208.63.128.255 | 256 | |
| 208.63.129.0/24 | 208.63.129.0 | 208.63.129.255 | 256 | |
| 208.63.130.0/23 | 208.63.130.0 | 208.63.131.255 | 512 | |
| 208.63.132.0/22 | 208.63.132.0 | 208.63.135.255 | 1,024 | |
| 208.63.136.0/21 | 208.63.136.0 | 208.63.143.255 | 2,048 | |
| 208.182.0.0/18 | 208.182.0.0 | 208.182.63.255 | 16,384 | |
| 208.182.64.0/19 | 208.182.64.0 | 208.182.95.255 | 8,192 | |
| 208.182.96.0/22 | 208.182.96.0 | 208.182.99.255 | 1,024 | |
| 208.182.100.0/24 | 208.182.100.0 | 208.182.100.255 | 256 | |
| 208.182.101.0/24 | 208.182.101.0 | 208.182.101.255 | 256 | |
| 208.182.102.0/23 | 208.182.102.0 | 208.182.103.255 | 512 | |
| 208.182.104.0/21 | 208.182.104.0 | 208.182.111.255 | 2,048 | |
| 208.182.112.0/21 | 208.182.112.0 | 208.182.119.255 | 2,048 | |
| 208.182.120.0/22 | 208.182.120.0 | 208.182.123.255 | 1,024 | |
| 208.182.124.0/24 | 208.182.124.0 | 208.182.124.255 | 256 | |
| 208.182.125.0/24 | 208.182.125.0 | 208.182.125.255 | 256 | |
| 208.182.126.0/23 | 208.182.126.0 | 208.182.127.255 | 512 | |
| 208.182.128.0/17 | 208.182.128.0 | 208.182.255.255 | 32,768 |
| Netblock | From IP | To IP | Number of IPs |
|---|
Downstreams
There are no downstreams for this ASN.
What is an Autonomous System (AS)?
An Autonomous System (AS) is a collection of connected networks that operate under a common administrative domain and share routing policies. Each AS is identified by a unique Autonomous System Number (ASN), which is used to exchange routing information with other ASs. AS can control how traffic flows through networks and then filter out unwanted traffic.
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