Autonomous System
AS19957 AT&T Enterprises, LLC
ISPActiveUnited StatesARIN
AS19957 (STATE-OF-TENNESSEE-NETTN) is an ISP network operated by AT&T Enterprises, LLC in United States, registered with ARIN. It has 54 IPv4 prefixes with 436,224 addresses, which makes it the 739th largest of 82,283 active autonomous systems by IPv4 space.
IPv4 addresses436,224in 54 prefixes
IPv6 prefixes0none
Size rank#739of 82,283 active ASNs
Details
OrganizationAT&T Enterprises, LLC
AS nameSTATE-OF-TENNESSEE-NETTN
Websiteatt.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@att.net
Registered2003-03-05
Last updated2025-02-12
IPv4 prefixes
54 prefixes · 436,224 addresses| Network | Addresses | First – last address |
|---|---|---|
| 66.4.0.0/16 | 65,536 | 66.4.0.0 – 66.4.255.255 |
| 170.142.0.0/16 | 65,536 | 170.142.0.0 – 170.142.255.255 |
| 170.143.0.0/16 | 65,536 | 170.143.0.0 – 170.143.255.255 |
| 198.146.0.0/16 | 65,536 | 198.146.0.0 – 198.146.255.255 |
| 206.23.0.0/16 | 65,536 | 206.23.0.0 – 206.23.255.255 |
| 208.182.0.0/16 | 65,536 | 208.182.0.0 – 208.182.255.255 |
| 12.204.192.0/20 | 4,096 | 12.204.192.0 – 12.204.207.255 |
| 12.204.208.0/20 | 4,096 | 12.204.208.0 – 12.204.223.255 |
| 70.158.144.0/20 | 4,096 | 70.158.144.0 – 70.158.159.255 |
| 74.252.160.0/20 | 4,096 | 74.252.160.0 – 74.252.175.255 |
| 208.63.128.0/20 | 4,096 | 208.63.128.0 – 208.63.143.255 |
| 12.204.216.0/21 | 2,048 | 12.204.216.0 – 12.204.223.255 |
| 64.79.176.0/21 | 2,048 | 64.79.176.0 – 64.79.183.255 |
| 68.156.24.0/21 | 2,048 | 68.156.24.0 – 68.156.31.255 |
| 70.150.248.0/21 | 2,048 | 70.150.248.0 – 70.150.255.255 |
| 66.4.28.0/22 | 1,024 | 66.4.28.0 – 66.4.31.255 |
| 74.254.176.0/22 | 1,024 | 74.254.176.0 – 74.254.179.255 |
| 66.4.8.0/23 | 512 | 66.4.8.0 – 66.4.9.255 |
| 66.4.14.0/23 | 512 | 66.4.14.0 – 66.4.15.255 |
| 66.4.16.0/23 | 512 | 66.4.16.0 – 66.4.17.255 |
| 66.4.18.0/23 | 512 | 66.4.18.0 – 66.4.19.255 |
| 66.4.32.0/23 | 512 | 66.4.32.0 – 66.4.33.255 |
| 66.4.60.0/23 | 512 | 66.4.60.0 – 66.4.61.255 |
| 68.156.24.0/23 | 512 | 68.156.24.0 – 68.156.25.255 |
| 68.156.26.0/23 | 512 | 68.156.26.0 – 68.156.27.255 |
66.4.0.0/16 170.142.0.0/16 170.143.0.0/16 198.146.0.0/16 206.23.0.0/16 208.182.0.0/16 12.204.192.0/20 12.204.208.0/20 70.158.144.0/20 74.252.160.0/20 208.63.128.0/20 12.204.216.0/21 64.79.176.0/21 68.156.24.0/21 70.150.248.0/21 66.4.28.0/22 74.254.176.0/22 66.4.8.0/23 66.4.14.0/23 66.4.16.0/23 66.4.18.0/23 66.4.32.0/23 66.4.60.0/23 68.156.24.0/23 68.156.26.0/23
The 25 largest of 54. The API and the database have all of them.
IPv6 prefixes
No IPv6 prefixes.
Query AS19957 with the API
The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day.
curl "https://api.ipapi.is/?q=AS19957&key=YOUR_API_KEY"Any address in its prefixes resolves to AS19957, with or without a key:
curl "https://api.ipapi.is/?q=66.4.0.1"Other networks of AT&T Enterprises, LLC
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