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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,133 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 638 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,235 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 368 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 48.8M | 3,614 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,941 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,429 |
| 2K |
| 5 |
| 13 |
| AS36824US | ADTAQ - Adtaq Internet, LLC | 2K | — | 1 |
| AS19071US | MATCHCOM - Match Group, LLC | 2K | — | 6 |
| AS30006US | TOP-BUSINESS-INC - TOP BUSINESS INC | 2K | 1 | 6 |
| AS22441US | WHITWORTH-NET - Whitworth University | 2K | — | 5 |
| AS19011US | ODETICS - Iteris, Inc. | 2K | — | 8 |
| AS394221US | COVESTRO-US-ASN - Covestro LLC | 2K | — | 4 |
| AS54396US | NUANCE-MOBILITY - Microsoft Corporation | 2K | — | 1 |
| AS8126US | CLOUDFABRIC - Cloud Fabric, Inc. | 2K | — | 2 |
| AS46399US | WAVELINC-1 - Wavelinc Communications LLC | 2K | — | 5 |
| AS397463US | WASHINGTON-ISLAND-ELECTRIC-COOP - Washington Island Electric Cooperative, Inc. | 2K | 69.6K | 4 |
| AS397993US | AXA-GROUP-OPERATIONS - AXA GROUP OPERATIONS AMERICAS INC. | 2K | — | 5 |
| AS42633US | DeloitteToucheTohmatsu-Global Deloitte Touche Tohmatsu Services, LLC | 2K | 8.2K | 8 |
| AS18874US | MAXAR-ASN - Vantor Parent Inc. | 2K | — | 8 |
| AS20333US | OPSUS-NET - Cloudwave | 2K | — | 8 |
| AS396317US | VITALINK-PA05 - Vitalink LLC | 2K | 65.5K | 5 |
| AS46536US | VIASAT-CARLSBAD - ViaSat, Inc. | 2K | — | 8 |
| AS36294US | WINFIELD-WIRELESS - Clark County Computer Connections | 2K | — | 2 |
| AS19586US | FIRST-CITY-INTERNET - First City Internet, LLC | 2K | 8 | 16 |
| AS1442US | ASNSISL - SureHosting Internet Solutions, Inc. | 2K | 65.5K | 3 |
| AS7876US | DRS-1 - Dominion Energy Services, Inc. | 2K | — | 2 |
| AS400US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 2K | — | 1 |
| AS40790US | BCG-NETWORK - BCG Attorney Search | 2K | — | 2 |
| AS395885US | N3T-ASN-1 - Net3 Technology Inc. | 2K | — | 4 |
| AS396528US | WEBAIR-CHI - Webair Internet Development Company Inc. | 2K | — | 7 |
| AS2621US | DNIC-AS-02621 - United States Department of Defense (DoD) | 2K | — | 2 |
| AS26529US | HILTON-E - Hilton Worldwide Holdings Inc | 2K | — | 2 |
| AS23230US | BROADNET-DENVER - Broadnet Teleservices LLC | 2K | — | 8 |
| AS54634US | SNAP-INTERNET - Snap Internet LLC | 2K | — | 1 |
| AS11523US | AS-HLEEM - H. Lee Moffitt Cancer Center & Research Institute, Inc. | 2K | — | 5 |
| AS1347US | VOYANT-LAB - Inteliquent, inc. | 2K | — | 5 |
| AS16939US | CARETECH-SOLUTIONS - CARETECH SOLUTIONS INC | 2K | — | 8 |
| AS63459US | INSTINET-LSET - Instinet | 2K | — | 4 |
| AS23248US | PPS - Paducah Power System | 2K | 65.5K | 3 |
| AS5777US | RIBBON - Ribbon Communications Operating Company, Inc. | 2K | — | 8 |
| AS12110US | AS-INTER - Internex Inc. | 2K | 69.6K | 9 |
| AS26764US | RWJF-AS - The Robert Wood Johnson Foundation | 2K | — | 5 |
| AS398996US | CALCAS-CSC - California Casualty Management Company | 2K | — | 2 |
| AS64281US | NET3-ISP - Ridgewood Holdings LLC | 2K | — | 6 |
| AS3955US | CMPC-2008 - Compucom Systems | 2K | — | 8 |
| AS14849US | SCSD-AS - Superior Court of California, County of San Diego | 2K | — | 5 |
| AS16620US | ALCAZAR-EAST - Alcazar Networks, Inc | 2K | — | 1 |
| AS402128US | PEAKFIBER-01 - PeakFiber Broadband LLC | 2K | — | 1 |
| AS14134US | NAVISITE-WEST-2 - Navisite Opco LLC | 2K | — | 1 |
| AS53872US | ASNTWO-AND-ASNTHREE - Telinta, Inc. | 2K | 4.1K | 3 |
| AS46110US | CHEMEKETA-COMMUNITY-COLLEGE - Chemeketa Community College | 2K | — | 1 |
| AS397427US | BRADFORD-BROADBAND - Bradford Broadband, LLC | 2K | — | 8 |