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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. | 210.9M | 21,032 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,221 |
| 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 | 48M | 3,585 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,933 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,534 |
| RACKTOPIA - Racktopia Inc. |
| 3.8K |
| 1 |
| 16 |
| AS26306US | THE-KARCHER-GROUP - The Karcher Group Inc. | 3.8K | — | 9 |
| AS14144US | ADMIN-ON-DEMAND-LLC - Admin on Demand, LLC | 3.8K | — | 9 |
| AS20334US | EPICTOUCH-AS-1 - Epic Touch Co. | 3.8K | — | 15 |
| AS393784US | EXP-ASHVA2015 - Experian | 3.8K | — | 8 |
| AS26946US | KIRKWOOD-COMMUNTIY-COLLEGE - Kirkwood Community College | 3.8K | — | 10 |
| AS27640US | GIGASNET-AS - GIGAS HOSTING USA, LLC | 3.8K | — | 5 |
| AS12075US | JACOBS - Jacobs Engineering Group Inc. | 3.8K | — | 13 |
| AS12069US | REV-NET-TECHNOLOGIES - Rev.Net Technologies | 3.8K | — | 15 |
| AS23317US | WHITMANCOLLEGE - Whitman College | 3.8K | — | 4 |
| AS394034US | BROOKLYN-FIBER - Brooklyn Fiber | 3.8K | 65.5K | 11 |
| AS30215US | AS-CISCOHPS-APAC - Cisco Systems Ironport Division | 3.8K | 2 | 17 |
| AS40526US | THE-GAP-INC - Gap, Inc. Direct | 3.8K | — | 9 |
| AS18593US | GSHULLGR - The Goldman Sachs Group, Inc. | 3.8K | — | 15 |
| AS40428US | PANDORA-EQX-SJL - Pandora Media, LLC | 3.8K | 5 | 17 |
| AS393960US | HOST4GEEKS-LLC - Host4Geeks LLC | 3.8K | — | 9 |
| AS10655US | BUREAU-NAT-AFF - BLOOMBERG INDUSTRY GROUP | 3.8K | — | 15 |
| AS30350US | REGION7-ESC - Region VII Education Service Center | 3.8K | 65.5K | 5 |
| AS18694US | SDWARREN - Sappi Fine Paper North America | 3.8K | 257 | 6 |
| AS54523US | WSTC - WSTC | 3.8K | — | 9 |
| AS16958US | BCIU-22 - Bucks County Intermediate Unit #22 | 3.8K | — | 8 |
| AS399918US | SYLUTIL - Utilities Board of the City of Sylacauga | 3.8K | 65.5K | 8 |
| AS41625US | ETSERVICE-AS Express Teleservice Corp | 3.8K | 131.1K | 14 |
| AS976US | CORENET - CoreNET Inc. | 3.8K | 9 | 21 |
| AS14734US | NEONET-HEARTLAND - Northeast Ohio Network for Educational Technology | 3.8K | — | 8 |
| AS14990US | AVNET-NA - Avnet Inc. | 3.8K | — | 10 |
| AS11471US | NSBPK - New Source Broadband | 3.8K | — | 15 |
| AS1286US | IVAS01 - Altay Corporation | 3.8K | — | 14 |
| AS54326US | MNIS1782 - McCookNet Internet Service | 3.8K | — | 13 |
| AS11135US | CROSS-DEVELOPMENT-MONTGOMERY - Cross Development/Montgomery LP | 3.8K | — | 8 |
| AS13630US | CSXT-AS-1 - CSX Technology | 3.8K | — | 8 |
| AS32824US | WWT-ASN1 - WORLD WIDE TECHNOLOGY HOLDING CO., LLC. | 3.8K | — | 9 |
| AS19239US | KLA - KLA Corporation | 3.8K | — | 15 |
| AS397027US | BLOCK-LINE-DENVER - Block Line Systems, LLC | 3.8K | — | 9 |
| AS398033US | DEPT-OF-LABOR - U.S. Department of Labor - OASAM/DIRM | 3.8K | 13 | 27 |
| AS26709US | RACKSQUARED-DATA-CENTERS - Racksquared | 3.8K | 65.5K | 18 |
| AS395110US | AERODATA - AeroData, Inc. | 3.6K | — | 9 |
| AS36791US | PDXHOSTING - Portland Internet Hosting LLC | 3.6K | 4.4K | 9 |
| AS401851US | COSD - County of San Diego | 3.6K | — | 12 |
| AS63086US | UBER-PROD - Uber Technologies, Inc | 3.6K | — | 11 |
| AS396292US | EPSILON-EGI - Epsilon Data Management LLC | 3.6K | — | 12 |
| AS11171US | AUTONATION-FTLD - Autonation, Inc | 3.6K | — | 4 |
| AS55143US | NEXUSTEK-LASASN01 - Nexus Technologies, LLC | 3.6K | — | 7 |
| AS19430US | ACXIOM-CORP - Acxiom LLC | 3.6K | — | 5 |
| AS26403US | MADERACOE - Madera County Office of Education | 3.6K | — | 3 |
| AS13690US | AMR - American Medical Response, Inc. | 3.6K | — | 8 |
| AS53571US | PCC-CORP - PRECISION CASTPARTS CORP | 3.6K | — | 14 |