AS6431

AT&T Enterprises, LLC

AS 6431 ATT-RESEARCH

Autonomous Systems are networks typically governed by large ISPs that participate in global Internet routing. Each network is assigned a unique identification number known as the AS number or ASN by the Internet Assigned Numbers Authority.

398,848 IP addresses
ASN6431
NameATT-RESEARCH
OrganizationAT&T Enterprises, LLC
CountryUnited States  
RegistryARIN
IPv4 addresses398,848
IPv6 /64 networks1.51 x 223
Prefixes22
Other ASN allocated to AT&T Enterprises, LLC
ASN Name IP addresses
7018 ATT-INTERNET4 110,463,745
20057 ATT-MOBILITY-LLC-AS20057 7,553,024
6389 BELLSOUTH-NET-BLK 5,770,752
14654 WAYPORT 1,973,504
7287 PBI-NET-BLK2 448,768
19957 STATE-OF-TENNESSEE-NETTN 408,064
2386 INS-AS 313,600
4185 ATTIS-ASN4185 201,472
4473 ATTIS-ASN4473 144,896
13979 ATT-IPFR 83,972
25993 ATT-LABS-AUSTIN-TX 50,688
4466 EASYLINK2 30,208
13965 SBCIS-FYTVAR 4,096
3423 ATTIS-ASN3423 3,328
4468 EASYLINK4 1,536
5728 WORLDNET1 512
16961 HIPCS-DALLAS-SERVER-OFFICE 512
6269 ATT-INTERNET2 256
4186 ATTIS-ASN4186 256
7294 SBIS-BLK 0
14247 SBIS-WACOTX 0
13964 SBCIS-TPKAKS 0
13422 SBCIS-BUMTTX 0
11026 ATTIS-ASN11026 0
13420 SBCIS-LUBKTX 0
13421 SBCIS-ABLNTX 0
16473 STATE-OF-TENNESSEE-NETTN 0
27522 ATT-MOBILITY-LLC-AS27522 0
19956 STATE-OF-TENNESSEE-NETTN 0
19540 ATT-MOBILITY-LLC-AS19540 0
17258 ATT-MOBILITY-LLC-AS17258 0
16967 SBCIDC-DLLSTX 0
16966 SBCIDC-LSAN03 0
16965 SBIS-SPFDMO 0
16964 HIPCS-NEW-YORK-ACCESS-OFFICE 0
16963 HIPCS-SOUTHFIELD-ACCESS-OFFICE 0
16962 HIPCS-IRVINE-ACCESS-OFFICE 0
16959 SBIS-AMRLTX 0
16572 ATT-MOBILITY-LLC-AS16572 0
46164 ATT-MOBILITY-LABS 0
7286 PBI-NET-BLK2 0
5103 ATTIS-ASN5103 0
5102 ATTIS-ASN5102 0
5002 BBSATLGA 0
4990 ATTIS-ASN4990 0
4467 EASYLINK3 0
4465 EASYLINK1 0
3448 ATTMO-3-AS 0
3422 ATTIS-ASN3422 0
3421 ATTIS-ASN3421 0
3420 ATTIS-ASN3420 0
1838 CERFNET-2 0
1740 CERFNET 0
5104 ATTIS-ASN5104 0
5105 ATTIS-ASN5105 0
5107 ATTIS-ASN5107 0
7222 SBIS-KCSYMO 0
7132 SBIS-AS 0
6478 ATT-INTERNET3 0
5730 WORLDNET3 0
6385 BELLSOUTH-NET-BLK 0
6384 BELLSOUTH-NET-BLK 0
6383 BELLSOUTH-NET-BLK 0
6382 BELLSOUTH-NET-BLK 0
6381 BELLSOUTH-NET-BLK 0
5731 5731 0
5729 WORLDNET2 0
5727 WORLDNET-0 0
1698 PRODIGY 0
IPv4 Prefixes for AS6431
Network Location Addresses
12.106.32.0/23 AT&T Enterprises   Bedminster 512
12.106.34.0/24 AT&T Enterprises   Bedminster 256
12.106.35.0/24 AT&T Enterprises   Bedminster 256
135.197.0.0/16 AT&T Enterprises, LLC   Indianapolis (Mile Square) 65,536
135.197.0.0/17 AT&T Enterprises, LLC   Indianapolis (Mile Square) 32,768
135.197.128.0/17 AT&T Enterprises, LLC   Indianapolis (Mile Square) 32,768
135.205.0.0/16 AT&T Enterprises, LLC   Indianapolis (Mile Square) 65,536
135.205.0.0/17 AT&T Enterprises, LLC   Indianapolis (Mile Square) 32,768
135.205.128.0/17 AT&T Enterprises, LLC   Indianapolis (Mile Square) 32,768
135.207.0.0/16 AT&T Enterprises, LLC   Indianapolis (Mile Square) 65,536
135.207.0.0/17 AT&T Enterprises, LLC   Indianapolis (Mile Square) 32,768
135.207.128.0/17 AT&T Enterprises, LLC   Indianapolis (Mile Square) 32,768
192.20.225.0/24 AT&T Enterprises, LLC   Dallas (Dallas Downtown Historic District) 256
204.178.0.0/21 Verizon Business   New York 2,048
204.178.8.0/21 Verizon Business   Newark 2,048
207.140.168.0/24 AT&T Services   Bedminster 256
IPv6 Prefixes for AS6431
Network Location /64 Prefixes
2620:0:f00::/41 AT&T Enterprises, LLC   Dallas (Dallas Downtown Historic District) 223
2620:0:f01::/48 AT&T Enterprises, LLC   Newark 216
2620:0:f40::/44 AT&T Enterprises, LLC   Dallas (Dallas Downtown Historic District) 220
2620:0:f50::/44 AT&T Enterprises, LLC   Newark 220
2620:0:f60::/44 AT&T Enterprises, LLC   Newark 220
2620:0:f70::/44 AT&T Enterprises, LLC   Newark 220