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Summary
| Country |
 United States
|
| Domain | att.net |
| Size | 512 |
| Registry | ARIN |
| Network Name | ATTGMS |
Whois
American Registry for Internet Numbers NET199 (NET-199-0-0-0-0) 199.0.0.0 - 199.255.255.255
AT&T Services, Inc. ATTGMS (NET-199-191-128-0-1) 199.191.128.0 - 199.191.255.255CIDR IP address subranges within 199.191.128.0/23 subnet
- 199.191.128.0/24
- 199.191.129.0/24