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.
ASN | 4473 |
Name | ATTIS-ASN4473 |
Organization | AT&T Corp. |
Country | United States
|
Registry | ARIN |
IPv4 addresses | 145,152 |
IPv6 /64 networks | 1.13 x 224 |
Prefixes | 42 |
Other ASN allocated to AT&T Corp.
ASN |
Name |
IP addresses |
6389 |
BELLSOUTH-NET-BLK |
8,144,640 |
19957 |
TENNESSEE-NET |
408,064 |
7287 |
PBI-NET-BLK2 |
216,320 |
4185 |
ATTIS-ASN4185 |
201,472 |
5671 |
PBI-NET-BLK |
12,800 |
6384 |
BELLSOUTH-NET-BLK |
7,680 |
19483 |
SBCASI-AKRON-OH-COVLIL |
7,424 |
5672 |
PBI-NET-BLK |
6,400 |
3423 |
ATTIS-ASN3423 |
3,584 |
6385 |
BELLSOUTH-NET-BLK |
3,072 |
13965 |
SBCIS-FYTVAR |
2,304 |
16959 |
SBIS-AMRLTX |
2,304 |
6382 |
BELLSOUTH-NET-BLK |
1,024 |
16961 |
HIPCS-DALLAS-SERVER-OFFICE |
512 |
4186 |
ATTIS-ASN4186 |
256 |
19956 |
TENNESSEE-NET |
0 |
16473 |
TNII |
0 |
14247 |
SBIS-WACOTX |
0 |
16967 |
SBCIDC-DLLSTX |
0 |
13964 |
SBCIS-TPKAKS |
0 |
13422 |
SBCIS-BUMTTX |
0 |
13421 |
SBCIS-ABLNTX |
0 |
13420 |
SBCIS-LUBKTX |
0 |
19496 |
SBCASI-AKRON-OH-COVLIL |
0 |
16966 |
SBCIDC-LSAN03 |
0 |
16965 |
SBIS-SPFDMO |
0 |
4990 |
ATTIS-ASN4990 |
0 |
16964 |
HIPCS-NEW-YORK-ACCESS-OFFICE |
0 |
19485 |
SBCASI-AKRON-OH-COVLIL |
0 |
16963 |
HIPCS-SOUTHFIELD-ACCESS-OFFICE |
0 |
19486 |
SBCASI-AKRON-OH-COVLIL |
0 |
19495 |
SBCASI-AKRON-OH-COVLIL |
0 |
16962 |
HIPCS-IRVINE-ACCESS-OFFICE |
0 |
11026 |
ATTIS-ASN11026 |
0 |
10774 |
SBIS-ASN-BLK-2 |
0 |
1698 |
PRODIGY |
0 |
5107 |
ATTIS-ASN5107 |
0 |
5105 |
ATTIS-ASN5105 |
0 |
5104 |
ATTIS-ASN5104 |
0 |
5103 |
ATTIS-ASN5103 |
0 |
5102 |
ATTIS-ASN5102 |
0 |
5002 |
BBSATLGA |
0 |
3422 |
ATTIS-ASN3422 |
0 |
3421 |
ATTIS-ASN3421 |
0 |
6381 |
BELLSOUTH-NET-BLK |
0 |
6383 |
BELLSOUTH-NET-BLK |
0 |
7132 |
SBIS-AS |
0 |
10772 |
SBIS-ASN-BLK-2 |
0 |
10771 |
SBIS-ASN-BLK-2 |
0 |
10770 |
SBIS-ASN-BLK-2 |
0 |
8063 |
BELLSOUTH-NET-BLK3 |
0 |
8061 |
BELLSOUTH-NET-BLK3 |
0 |
7891 |
BELLSOUTH-NET-BLK2 |
0 |
7294 |
SBIS-BLK |
0 |
7286 |
PBI-NET-BLK2 |
0 |
7222 |
SBIS-KCSYMO |
0 |
3420 |
ATTIS-ASN3420 |
0 |
IPv4 Prefixes for AS4473 - showing the first 20 of 38 networks