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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| 1 |
| 2 |
| AS402965US | PEGASUS-CLOUD - Pegasus | 256 | — | 1 |
| AS7837US | TAIHE-NETWORKS - Taihe Networks LLC | 256 | 256 | 2 |
| AS40742US | WESTERN-MD-HEALTH-SYSTEM - UPMC | 256 | — | 1 |
| AS19407US | AMERICAN-TIRE-DISTRIBUTORS-INC-2 - AMERICAN TIRE DISTRIBUTORS, INC. | 256 | — | 1 |
| AS395346US | BCI-AS-1 - Bonneville County Idaho | 256 | — | 1 |
| AS399529US | KIRKLAND-ELLIS-AU - Kirkland & Ellis LLP | 256 | — | 1 |
| AS62581US | WPA - Wonderful Pistachios & Almonds LLC | 256 | — | 1 |
| AS400461US | CITYOFMIDLANDTX - City of Midland | 256 | — | 1 |
| AS31757US | ASN-VALLEYCREST - ValleyCrest Companies | 256 | — | 1 |
| AS54104US | INFOO-54104 - InfoObjects Inc. | 256 | — | 1 |
| AS36169US | DCS1 - DETEL Computer Solutions, LLC | 256 | — | 1 |
| AS23453US | NPBI-NOC - NEW PEOPLES BANK, INC | 256 | — | 1 |
| AS64218US | LEGACY-MIDSTATE-01 - Allied | 256 | — | 1 |
| AS397603US | SAHA-AS - Satellite Affordable Housing Associates | 256 | — | 1 |
| AS33677US | 509FIBER - 509fiber | 256 | 4.1K | 2 |
| AS40087US | NEWORLEANSPUBLICLIBRARY-01 - NEW ORLEANS PARISH LIBRARY | 256 | — | 1 |
| AS398237US | UL-ORACLE-01 - UL LLC | 256 | — | 1 |
| AS399633US | HQ-ASN - First Internet Bank of Indiana | 256 | — | 1 |
| AS394518US | CHSD230 - Consolidated High School District 230 | 256 | — | 1 |
| AS27559US | ASN-PCT - Peets Coffee & Tea | 256 | — | 1 |
| AS53643US | MCUSDN-INET - Manteno Community Unit School District 5 | 256 | — | 1 |
| AS393688US | INSULET600TECH - Insulet Corporation | 256 | — | 1 |
| AS401220US | EDGE-CITY - Edgecity 1343 LLC | 256 | — | 1 |
| AS63364US | VPHARM - Vertex Pharmaceuticals | 256 | — | 1 |
| AS14941US | INTEGRATED-DOCUMENT-SOLUTIONS - Integrated Document Solutions, Inc | 256 | — | 1 |
| AS6224US | CENTURYLINK-MTIPS2-CHI - CenturyLink Communications, LLC | 256 | — | 1 |
| AS396909US | NMMCC-AS - New Mexico Mutual Casualty Company | 256 | — | 1 |
| AS33311US | NET-TOPCON - TOPCON POSITIONING SYSTEMS INC | 256 | — | 1 |
| AS396498US | TR-ASN-SB-01 - The Tire Rack, Inc. | 256 | — | 1 |
| AS396144US | AKAMIND-ASN - Akamind | 256 | — | 1 |
| AS23111US | GSC-ATLANTAVPC - Gannett Supply Corp. - Atlanta, GA (VPC) | 256 | — | 1 |
| AS399303US | VOLLI878463 - Volli Communications, Inc | 256 | — | 1 |
| AS398934US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | 256 | — | 1 |
| AS399032US | CNC-NET-01 - Cosner-Neipp Corporation | 256 | 4.1K | 2 |
| AS401670US | ANDO-CE - Care Everywhere | 256 | — | 1 |
| AS400771US | CODEHOF - Codehof LLC | 256 | 1 | 2 |
| AS40272US | ALLENINSTITUTE - Allen Institute | 256 | — | 1 |
| AS393899US | RWLV - RESORTS WORLD LAS VEGAS LLC | 256 | — | 1 |
| AS13622US | SPRISA - Sprisa Inc | 256 | — | 1 |
| AS400836US | SLG-OMA - SL Green Realty Corp | 256 | — | 1 |
| AS40236US | NMTCDBAMATCOTOOLS - Matco Tools | 256 | — | 1 |
| AS26219US | EAS-MN-1 - Deli Express | 256 | — | 1 |
| AS17046US | ACTION-COMM - Action Communications, Inc. | 256 | — | 1 |
| AS27565US | BRIDGEWATER - Bridgewater Associates, Inc. | 256 | — | 1 |
| AS11639US | EQUITY-TRUST-COMPANY - ETC | 256 | — | 1 |
| AS13545US | MICM - Matthews International Capital Management, LLC | 256 | — | 1 |