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AS4473
AS4473 AT&T Enterprises, LLC
ATTIS-ASN4473 - AT&T Enterprises, LLC · registered in the United States
IPv4 addresses 12,800 20 prefixes · <0.001% of announced IPv4
Rank in United States #2,628 largest network in US by IPv4 space, of 18,338 · <0.01% of US
Rank worldwide #7,972 of 79,396 networks with IPv4
IPv6 none no IPv6 routes announced
IPv4 prefixes
All 20 prefixes, in address order.
12.17.241.0/24 12.29.116.0/22 12.71.77.0/24 12.96.45.0/24 12.96.46.0/24 12.97.148.0/24 12.105.210.0/24 12.226.120.0/22 151.107.0.0/20 198.183.168.0/24 206.197.1.0/24 207.140.216.0/23 207.140.220.0/22 209.37.104.0/22 209.37.109.0/24 209.37.110.0/24 209.65.8.0/23 209.65.160.0/23 209.65.163.0/24 209.65.164.0/24
Other ASNs named AT&T Enterprises, LLC
24 other networks use the same organisation name; together with AS4473 they announce 103,072,004 IPv4 addresses.
ASN Name IPv4 addresses
AS7018 ATT-INTERNET4 - AT&T Enterprises, LLC US 90,002,688 AS6389 BELLSOUTH-NET-BLK - AT&T Enterprises, LLC US 4,237,056 AS20057 ATT-MOBILITY-LLC-AS20057 - AT&T Enterprises, LLC US 3,979,776 AS2686 ATGS-MMD-AS - AT&T Enterprises, LLC US 1,370,368 AS14654 WAYPORT - AT&T Enterprises, LLC US 916,480 AS2687 ATGS-MMD-AS - AT&T Enterprises, LLC US 727,040 AS7287 PBI-NET-BLK2 - AT&T Enterprises, LLC US 420,864 AS2688 ATGS-MMD-AS - AT&T Enterprises, LLC US 345,600 AS19957 STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC US 291,072 AS2386 INS-AS - AT&T Enterprises, LLC US 272,128 AS6431 ATT-RESEARCH - AT&T Enterprises, LLC US 200,192 AS4185 ATTIS-ASN4185 - AT&T Enterprises, LLC US 131,328 AS2685 ATGS-MMD-AS - AT&T Enterprises, LLC US 94,464 AS25993 ATT-LABS-AUSTIN-TX - AT&T Enterprises, LLC US 44,288 AS5671 PBI-NET-BLK - AT&T Enterprises, LLC US 8,448 AS5672 PBI-NET-BLK - AT&T Enterprises, LLC US 5,376 AS13965 SBCIS-FYTVAR - AT&T Enterprises, LLC US 4,096 AS3423 ATTIS-ASN3423 - AT&T Enterprises, LLC US 3,328 AS4468 EASYLINK4 - AT&T Enterprises, LLC US 1,536 AS6269 ATT-INTERNET2 - AT&T Enterprises, LLC US 1,280 AS7291 SBIS-BLK - AT&T Enterprises, LLC US 1,024 AS5728 WORLDNET1 - AT&T Enterprises, LLC US 512 AS4466 EASYLINK2 - AT&T Enterprises, LLC US 256 AS13979 ATT-IPFR - AT&T Enterprises, LLC US 4
Similar-sized networks in United States
ASN Name IPv4 addresses
AS636 #2625 DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD)12,800 AS1294 #2626 NTTDATA-SERVICES-AS1 - NTT DATA Services Holdings Corporation12,800 AS2615 #2627 BECHTEL - Bechtel Corporation12,800 AS4514 #2629 PVSCHOOLS-ASN-01 - Paradise Valley Unified School District12,800 AS13499 #2630 CH-ENT-DC-IL - NEW CCH, LLC12,800 AS16410 #2631 DKM3-ARIN - The Reynolds and Reynolds Company12,800
IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources