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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 |
| AS40626US | WENTWO-ASN - Wentworth-Douglass Hospital | 256 | — | 1 |
| AS62944US | BURTON-BURLINGTON - Burton Snowboards | 256 | — | 1 |
| AS393539US | SINCLAIR-SERVICES-PUBLIC - REH Services, LLC | 256 | — | 1 |
| AS33201US | TETF - Tilver Enterprises, LLC | 256 | 16 | 2 |
| AS397284US | OCHS-01 - Oakland Catholic High School | 256 | — | 1 |
| AS395769US | NUASN1 - Northwest University | 256 | — | 1 |
| AS399401US | LOUISIANA-INTERNET-TECHNOLOGY - LOUISIANA INTERNET TECHNOLOGY, LLC | 256 | — | 1 |
| AS395596US | INFINIRC-LLC - Infinirc LLC | 256 | 256 | 2 |
| AS30042US | ARIN-US-ASN-2 - Boerboel LLC | 256 | — | 1 |
| AS401027US | JDI-EAGLE - JUST DISH IT, INC | 256 | 256 | 2 |
| AS62905US | DART-CONTAINER-CORPORATION-ASN - Dart Container Corporation | 256 | — | 1 |
| AS18743US | EVERENCE-SERVICES-LLC - MENNONITE MUTUAL AID | 256 | — | 1 |
| AS46146US | BECKLAR-AS-1 - Becklar Holdings, LLC | 256 | — | 1 |
| AS394935US | CHUCK-RESERVA - Chuck Reserva, Sole Proprietorship | 256 | 64 | 5 |
| AS400512US | OPELIKA-01 - City of Opelika | 256 | — | 1 |
| AS400485US | APOG-PUERTA-DEL-SOL - Apogee Telecom Inc. | 256 | — | 1 |
| AS53729US | GESA-CU-ASN - Gesa Credit Union | 256 | — | 1 |
| AS62625US | JDBANK - JD Bank | 256 | — | 1 |
| AS33341US | EMSER-ASN01 - Emser Tile LLC | 256 | — | 1 |
| AS11726US | WBGAMES - WB Games Inc. | 256 | — | 1 |
| AS395218US | GATESCORP - GATES CORPORATION | 256 | — | 1 |
| AS30587US | TAI-GEORGETOWN - Toyota Tsusho America, Inc. | 256 | — | 1 |
| AS396448US | 1-MSP-LLC - 1 MSP LLC | 256 | — | 1 |
| AS40293US | BENEDICTINE-UNIVERSITY - BENEDICTINE UNIVERSITY | 256 | — | 1 |
| AS397406US | DCMH-DELTA-01 - Delta County Memorial Hospital | 256 | — | 1 |
| AS46331US | KUKATOLEDO - KUKA Toledo Production Operations LLC | 256 | — | 1 |
| AS32954US | GWA-ASN-NUMBER - GlobalWafers America, LLC | 256 | — | 1 |
| AS40644US | IFS - Integra Financial Services, LLC | 256 | — | 1 |
| AS30542US | MOVI-R-TECH-SOLUTIONS - MOVI-R | 256 | — | 1 |
| AS22718US | BROWNSVILLE-PUBLIC-UTILITIES-BOARD - Brownsville Public Utilities Board | 256 | — | 1 |
| AS33335US | HEAVISIDE-HOSTING-GROUP - Heaviside Hosting LLC | 256 | — | 1 |
| AS395882US | POWER-SJ - Power Integrations, INC. | 256 | — | 1 |
| AS62965US | SAFECU-AS - SAFE CREDIT UNION | 256 | — | 1 |
| AS398246US | RCC-ASN-01 - Rogue Community College | 256 | — | 1 |
| AS26916US | TCW-AS-NY - The TCW Group, Inc. | 256 | — | 1 |
| AS22137US | BCW - Blood Center of Wisconsin, Inc. | 256 | — | 1 |
| AS393348US | SUC-CORP1 - Southern Union Conference of Seventh day Adventists | 256 | — | 1 |
| AS400062US | CALL-NETWORKS - Call Networks, Inc | 256 | — | 1 |
| AS14304US | TSYS-SDC-CIV - Global Payments Inc. | 256 | — | 1 |
| AS26639US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS13610US | PROVOCRAFT-NOVELTY - Provo Craft & Novelty, Inc. | 256 | — | 1 |
| AS400044US | AS-CEIWC - Chesapeake Employers Insurance Company | 256 | — | 1 |
| AS46590US | CITY-OF-CHARLESTON - City of Charleston | 256 | — | 1 |
| AS46908US | COMVOZ-US - Comvoz Communication LLC | 256 | — | 1 |
| AS403123US | FIBERLABS - Fiber | 256 | — | 1 |
| AS402465US | TAHOMA-RADIOELECTRIC - Tahoma | 256 | 1 | 2 |