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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| 768 |
| — |
| 3 |
| AS7741US | CIBC-WORLD-MARKETS - CIBC World Markets | 768 | — | 3 |
| AS400213US | COMANDSOLUTIONS - COMAND Solutions, Inc | 768 | — | 3 |
| AS54565US | SMART-CITY-KCCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 768 | — | 2 |
| AS54803US | BT-AS-1 - Boys Town | 768 | — | 3 |
| AS14032US | FOOT-LOCKER-CORPORATE-SERVICES - Foot Locker Corporate Services, Inc | 768 | 1 | 4 |
| AS6973US | AS6973 - Morgan Stanley | 768 | — | 3 |
| AS394598US | CVLD - CROSSLINK LONG DISTANCE, COMPANY | 768 | — | 2 |
| AS30625US | AKERMAN-SENTERFITT - AKERMAN SENTERFITT | 768 | — | 3 |
| AS53499US | MCLEOD-HEALTH - McLeod Health | 768 | — | 3 |
| AS13464US | CPLP-ASN - Centerbridge Partners, L.P. | 768 | — | 3 |
| AS26695US | BOGLETECH - Cubed Networks LLC | 768 | 4.4K | 9 |
| AS54949US | NYS-SENATE - New York State Senate | 768 | — | 2 |
| AS17215US | AMEREN-AS3 - Ameren Corp. | 768 | — | 3 |
| AS33575US | TFINET-PUBLIC - The Franklin Institute Science Museum | 768 | — | 2 |
| AS401398US | POLY-GAMMA - Poly-Gamma LLC | 768 | — | 3 |
| AS20457US | VERDINET-AS-01 - Verdinet LLC | 768 | — | 2 |
| AS54413US | FPKI-AS - General Services Administration | 768 | 2 | 5 |
| AS398382US | ABV-WC - AbbVie, Inc. | 768 | — | 3 |
| AS40956US | NORTHWOOD-UNIVERSITY - Northwood University | 768 | — | 3 |
| AS33611US | NUVO2 - Nuvodia, LLC | 768 | — | 3 |
| AS14473US | I3ASN1-200E - Inside The Internet, Inc | 768 | — | 2 |
| AS53636US | XERIO - Xerio | 768 | — | 3 |
| AS53922US | THRIVE-C1 - Thrive Operations, LLC | 768 | — | 3 |
| AS54226US | SUNY-OPTOMETRY - SUNY College of Optometry | 768 | — | 3 |
| AS27451US | USO-ASN - US Oncology, Inc. | 768 | — | 3 |
| AS396173US | SWA-W11-MKT-INET - Southwest Airlines Co. | 768 | — | 3 |
| AS26096US | LODDEN - Lodden Services | 768 | — | 3 |
| AS36365US | NEOVEST-US - Neovest, Inc | 768 | — | 3 |
| AS22157US | AS1-A2W - mGage | 768 | — | 3 |
| AS22839US | MIMOWORKS-01 - Mimoworks Internet LLC | 768 | 256 | 3 |
| AS26751US | IGT-AS-26751 - IGT | 768 | — | 3 |
| AS55217US | TRIWEST-HA-DC1 - TRIWEST HEALTHCARE ALLIANCE | 768 | — | 2 |
| AS19868US | AS-UL-LV - UnitedLayer, LLC | 768 | — | 3 |
| AS197570US | BladeX BladeX Networks LLC | 768 | — | 3 |
| AS16429US | TGNA-WCSH - TEGNA Inc. | 768 | — | 3 |
| AS398361US | HORIZON-WIRELESS - Horizon Satellite, LLC | 768 | — | 2 |
| AS16968US | AURELIA-TEL - Aurelia Telecom Systems LLC | 768 | — | 2 |
| AS33504US | FNBP-2-HERM - FIRST NATIONAL BANK OF PA | 768 | — | 3 |
| AS26879US | AURELIA-TELECOM-LLC - Aurelia Telecom Systems LLC | 768 | 16 | 4 |
| AS399088US | NVENERGY-1 - Nevada Power Company | 768 | — | 3 |
| AS394622US | EMMIX - Emmix | 768 | — | 3 |
| AS23384US | REEDTECH - Reed Technology and Information Services, Inc. | 768 | — | 3 |
| AS400279US | REVELYST-OPERATIONS - Revelyst Operations | 768 | — | 3 |
| AS63071US | STAFFORDCOUNTYPUBLICSCHOOLS - Stafford County Public Schools | 768 | — | 3 |
| AS399103US | SPRY-WIRELESS-02 - Spry Wireless Communications Inc | 768 | — | 2 |
| AS1004US | AMBYRE - Ambyre LLC | 768 | 524.3K | 7 |