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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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 | 24,543 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,304 |
| 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.
32,174 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,884 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,999 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,345 |
| 256 |
| — |
| 1 |
| AS33477US | KNOX-COLLEGE-1837 - Knox College | 256 | — | 1 |
| AS15137US | JETPAY-AS - JetPay, LLC | 256 | — | 1 |
| AS398135US | NWNC - SKYWEB OF ILLINOIS, INC. | 256 | — | 1 |
| AS25974US | D11 - EXPEDIA, INC | 256 | — | 1 |
| AS53544US | LUMUGRACEFUL - LUMU GRACEFUL | 256 | — | 1 |
| AS394044US | TERRITORIAL - Bank of Hope | 256 | — | 1 |
| AS36228US | LANCASTERBIBLECOLLEGE - Lancaster Bible College | 256 | — | 1 |
| AS394637US | LIGHTCHANGE - LightChange Technologies | 256 | 1 | 2 |
| AS53946US | HMNMH - Henry Mayo Newhall Memorial Hospital | 256 | — | 1 |
| AS20261US | MSA-CORP - Medical Services of America | 256 | — | 1 |
| AS394119US | EXPERIMENTAL-COMPUTING-FACILITY - eXperimental Computing Facility Foundation | 256 | 4.1K | 3 |
| AS207419US | Richard-Marino Richard Marino | 256 | — | 1 |
| AS14687US | NLG-ASN-1 - National Life Insurance Company | 256 | — | 1 |
| AS394327US | OCTAPHARMAPLASMA-1 - Octapharma Plasma, Inc. | 256 | — | 1 |
| AS396530US | DCX-GOODYEAR1 - DCX Goodyear 1, LLC | 256 | — | 1 |
| AS394238US | GCFA-ASN01 - GENERAL COUNCIL ON FINANCE AND ADMINISTRATION OF THE UNITED METHODIST CHURCH | 256 | — | 1 |
| AS56640US | BAIN-AND-COMPANY-INC-UNITED-KINGDOM BAIN AND COMPANY INC UNITED KINGDOM | 256 | — | 1 |
| AS400017US | AS-CORP-RM-817 - Ruoff Mortgage | 256 | — | 1 |
| AS398162US | PANOLA-COLLEGE - Panola College | 256 | — | 1 |
| AS394253US | 1ST-TECH - XPRESSBET INC. | 256 | — | 1 |
| AS402425US | QLL-AS-001 - QOREXA | 256 | — | 1 |
| AS402235US | UNWRD-CO-01 - Unwired Access, LLC | 256 | 8.2K | 3 |
| AS397138US | JUSTUS-AS - The Vegetable Group | 256 | 1 | 2 |
| AS399198US | OKCCC - Oklahoma City Convention Center | 256 | — | 1 |
| AS36746US | SYMQUEST-SB-NET - SymQuest Group. Inc | 256 | — | 1 |
| AS402744US | GSA-NET-01 - GRC | 256 | — | 1 |
| AS400910US | MOOSE - Uptown Moose, Inc. | 256 | 65.5K | 2 |
| AS400216US | PARKWAY-SCHOOL-DISTRICT - Parkway School District | 256 | — | 1 |
| AS199770US | IQ-NET IQNET COMMUNICATIONS LLC | 256 | — | 1 |
| AS397346US | SBC-GTY-01 - SBFiber | 256 | — | 1 |
| AS399948US | CCU-LAKEWOOD - Colorado Christian University | 256 | — | 1 |
| AS395664US | ALTIUS-INSTITUTE-FOR-BIOMEDICAL-SCIENCES - Altius Institute for Biomedical Sciences | 256 | — | 1 |
| AS27439US | MULTIPLEX-NET - MultiPlex Networks LLC | 256 | 4.1K | 2 |
| AS30169US | WLATC2160 - Western Light and Tower Company Inc | 256 | — | 1 |
| AS397715US | KPFA - KPFA | 256 | 1 | 2 |
| AS17236US | TULSAL-74103 - Tulsa City-County Library | 256 | — | 1 |
| AS29803US | FANATIC NODE LLC - FanaticNode LLC | 256 | — | 1 |
| AS32846US | MDP - MDP | 256 | — | 1 |
| AS401264US | UACCM-AS - University of Arkansas Community College at Morrilton | 256 | 256 | 2 |
| AS32170US | SLVRMC - San Luis Valley Regional Medical Center | 256 | 1 | 2 |
| AS394771US | THALESAVIONICS - Thales Avionics | 256 | — | 1 |
| AS54419US | LIGHTPATH-PHOENIX - Cablevision Lightpath LLC | 256 | 1 | 2 |
| AS25989US | STONEEAGLE - StoneEagle Insurance Systems, Inc. | 256 | — | 1 |
| AS15357US | HCL-186-15357 - HARBIN CLINIC, LLC | 256 | — | 1 |
| AS16390US | WIFI-BEAR-ASN - WiFi Bear LLC | 256 | — | 1 |
| AS402232US | ADMA-ASN-01 - ADMA BIOMANUFACTURING, LLC | 256 | — | 1 |