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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,512 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,281 |
| — |
| — |
| 0 |
| AS815US | UUNET-CANADA - Verizon Business | — | — | 0 |
| AS943US | CENTIVA-ASN-01 - Centiva Capital, LP | — | — | 0 |
| AS1040US | ACI-INFRA - Academy City Internet LLC | — | — | 0 |
| AS1047US | LAKESIDE-NETWORKS - Lakeside Networks LLC | — | — | 0 |
| AS1214US | COLOEXCHANGE - COLOEXCHANGE.COM A CALIFORNIA CORP | — | — | 0 |
| AS1266US | DNIC-AS-01266 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1284US | COGENT-1284 - Cogent Communications, LLC | — | — | 0 |
| AS1330US | ANSBB-ASNNET-1 - Verizon Business | — | — | 0 |
| AS1356US | ASN-55WATER - SULLCROM | — | — | 0 |
| AS1393US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1440US | ALFORD-MEDIA-SERVICES-DAL-TX - Alford Media Services, Inc. | — | — | 0 |
| AS1453US | DNIC-ASBLK-01451-01456 - Headquarters, USAISC | — | — | 0 |
| AS1464US | DNIC-ASBLK-01464-01465 - Headquarters, USAISC | — | — | 0 |
| AS1477US | DNIC-ASBLK-01474-01477 - Headquarters, USAISC | — | — | 0 |
| AS1514US | DNIC-ASBLK-01513-01518 - Headquarters, USAISC | — | — | 0 |
| AS1522US | DNIC-ASBLK-01522-01526 - Headquarters, USAISC | — | — | 0 |
| AS1529US | DNIC-ASBLK-01529-01530 - Headquarters, USAISC | — | — | 0 |
| AS1536US | DNIC-ASBLK-01534-01546 - Headquarters, USAISC | — | — | 0 |
| AS1587US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS1667US | ANS-DC2 - Verizon Business | — | — | 0 |
| AS1668US | AOL-ATDN - Yahoo Holdings Inc. | — | — | 0 |
| AS1688US | ANS-AT-PACBELL-NAP - Verizon Business | — | — | 0 |
| AS1690US | BOCES - BOCES Southern Westchester | — | — | 0 |
| AS1799US | COGENT-1799 - Cogent Communications, LLC | — | — | 0 |
| AS1862US | DISN-PILOTNET8 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS1870US | HPINC - HP Inc. | — | — | 0 |
| AS1907US | IPSERV-AS - Single Source Network Systems, Inc. | — | — | 0 |
| AS1917US | CTCSERV-AS - CTC | — | — | 0 |
| AS1928US | WRNL-PDVS - Parke-Davis | — | — | 0 |
| AS1931US | HPINC - HP Inc. | — | — | 0 |
| AS1981US | DNIC-AS-01981 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2022US | SIEMENS-AS - Siemens Power Corp | — | — | 0 |
| AS2050US | SPRINTCORP - Sprint Enterprise Information Services | — | — | 0 |
| AS2718US | APSCN-AR - Arkansas Public School Computer Network | — | — | 0 |
| AS2829US | I-LINK - I-Link | — | — | 0 |
| AS2888US | MCI-AREA-1 - Verizon Business | — | — | 0 |
| AS2896US | ANGELVA - Genesys Telecommunications Laboratories,Inc. | — | — | 0 |
| AS2997US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3001US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3013US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3150US | NTTA-3150 - NTT America, Inc. | — | — | 0 |
| AS3416US | DNIC-AS-03416 - United States Department of Defense (DoD) | — | — | 0 |
| AS3429US | ESNET-AS - ESnet | — | — | 0 |
| AS3500US | BLACK-STAR - Black Star Publishing Co. Inc. | — | — | 0 |
| AS3501US | ES-USDA - USDA | — | — | 0 |
| AS3509US | NET-CALPUC - California Public Utilities Commission | — | — | 0 |