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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) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS6016US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS244US | DNIC-AS-00244 - United States Department of Defense (DoD) | — | — | 0 |
| AS1392US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS7269US | ONESOURCE - OneSource Information Services,Inc | — | — | 0 |
| AS7240US | URAEUS - Uraeus Consulting | — | — | 0 |
| AS7135US | KOHALA - Kohala Software | — | — | 0 |
| AS7160US | NETDYNAMICS - Oracle Corporation | — | — | 0 |
| AS7006US | CYBERNEX - Cybernex Inc. | — | — | 0 |
| AS6983US | ITCDELTA - Windstream Communications LLC | — | — | 0 |
| AS6641US | SPORTSLINE - SportsLine USA Inc. | — | — | 0 |
| AS7081US | CARIN-AS-BLOCK - ISI | — | — | 0 |
| AS4950US | ASN-SPRN-NYSERNET1 - SPRINT, Business Serices Group | — | — | 0 |
| AS4942US | B-NET - B-Net Technologies | — | — | 0 |
| AS4490US | EMTF-LAK - Air Force Systems Networking | — | — | 0 |
| AS4873US | EATON-CORPORATION-2 - Eaton Corporation | — | — | 0 |
| AS4264US | CERNET-ASN-BLOCK - California Education and Research Federation Network | — | — | 0 |
| AS3505US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS21776US | BLOSSOMTEL-AS - CHICKASAW TELEPHONE | — | — | 0 |
| AS21991US | BASED-NETWORKING - BNS Services LLC | — | — | 0 |
| AS20287US | OFINY - Invesco Group Services, Inc. | — | — | 0 |
| AS20240US | VENTURAFOODS - VENTURA FOODS, LLC | — | — | 0 |
| AS2911US | CITI4 - Citigroup Inc. | — | — | 0 |
| AS20415US | COUNCILROCKSD-PA - Council Rock School District | — | — | 0 |
| AS2052US | RJRNI-NFGI - Nabisco Foods Group | — | — | 0 |
| AS2035US | NGIS-AS3 - Northrop Grumman Corp. | — | — | 0 |
| AS1728US | SRI-TPA-GW1 - SRI-TPA-gw1 | — | — | 0 |
| AS7335US | LOOP - Loop Phone Organization | — | — | 0 |
| AS1524US | DNIC-ASBLK-01522-01526 - Headquarters, USAISC | — | — | 0 |
| AS1504US | DNIC-AS-01504 - Headquarters, USAISC | — | — | 0 |
| AS3994US | INET-CORE-AS - Internetworsks, Inc. | — | — | 0 |
| AS393314US | ORACLE-BYOASN - Oracle Corporation | — | — | 0 |
| AS1919US | UMASSNET-AS1919 - UMASSNET | — | — | 0 |
| AS2965US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3075US | CITI9 - Citigroup Inc. | — | — | 0 |
| AS3438US | ESNET-AS - ESnet | — | — | 0 |
| AS2987US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2978US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS301US | C3PO-AS - Air Force Systems Networking | — | — | 0 |
| AS3008US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS182US | MERIT-AS-2 - Merit Network Inc. | — | — | 0 |
| AS134US | CORONA-GW-AS - Fleet Analysis Center | — | — | 0 |
| AS1468US | DNIC-ASBLK-01467-01468 - Headquarters, USAISC | — | — | 0 |
| AS83US | DNIC-AS-00083 - Headquarters, USAISC | — | — | 0 |
| AS403032US | RDOFFUTTCO-AS - R.D. | — | — | 0 |
| AS403018US | TITANFORGE - NodeNinja | — | — | 0 |
| AS402887US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |