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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 |
| AS14906US | MAXIM-7227 - Maxim Healthcare Services, Inc. | 256 | — | 1 |
| AS396267US | TAFT-STETTINIUS-HOLLISTER - Taft, Stettinius & Hollister, LLP | 256 | — | 1 |
| AS54730US | BSA-ASN1 - BS&A Software, LLC | 256 | — | 1 |
| AS17002US | AVISTA-CAPITAL - Avista Capital, Inc. | 256 | — | 1 |
| AS40752US | TVG-NETWORK - TVG Network | 256 | — | 1 |
| AS393781US | HELMGROUP-FREEPORT - Helm Group, Inc. | 256 | — | 1 |
| AS402421US | FUTONET - FUTO | 256 | — | 1 |
| AS32532US | KMC-37-ASN - Kuakini Medical Center | 256 | — | 1 |
| AS63463US | EXPRESSSERVER-INTERNET - Express Employment Professionals | 256 | — | 1 |
| AS14784US | STCU - SPOKANE TEACHERS CREDIT UNION | 256 | — | 1 |
| AS64252US | LITE-PIPES - Lite Pipes Communications LLC | 256 | — | 1 |
| AS219106US | EU-VOXIMPLANTINC Voximplant, Inc. | 256 | — | 1 |
| AS36774US | AS-36774 - Intuit Inc. | 256 | — | 1 |
| AS29697US | BEEKS-AS - BeeksFX VPS USA Inc. | 256 | — | 1 |
| AS398345US | NETGRICHGLOBAL - NEW AGE NETWORKS, LLC | 256 | — | 1 |
| AS20402US | LL-942-20402 - LEDVANCE | 256 | — | 1 |
| AS14501US | ENTERPRISECOMMUNITY - Enterprise Business Partners, LLC | 256 | — | 1 |
| AS216242US | JUTLEY-AS Jeremy Utley | 256 | 256 | 5 |
| AS399607US | LCPS-VA - Louisa County Public Schools | 256 | — | 1 |
| AS393453US | SMILEDIRECTCLUB-1 - Smile Direct Club, LLC | 256 | — | 1 |
| AS63341US | ROKI-AMERICA - ROKI America Co., Ltd. | 256 | — | 1 |
| AS925US | SIFIBE - SiFibe, LLC | 256 | — | 1 |
| AS63171US | PASADENA-ISD-AS1 - Pasadena Independent School District | 256 | — | 1 |
| AS6248US | DEKA-R-D - DEKA Research & Development Corp | 256 | — | 1 |
| AS22704US | CEI-COLLEGE-OF-EASTERN-IDAHO - College of Eastern Idaho | 256 | — | 1 |
| AS402171US | GW-ALB-01 - Glitch Works, LLC | 256 | 1 | 2 |
| AS51095US | E1-EMEA EdgeUno, Inc. | 256 | 16 | 2 |
| AS25788US | CPL-AS - Centerview Partners, LLC | 256 | — | 1 |
| AS62736US | LANDMARK-COLLEGE - Landmark College, Inc | 256 | — | 1 |
| AS18824US | PCCA-HQ - Plains Cotton Cooperative Association | 256 | — | 1 |
| AS4578US | NETCENTER - Network Center Inc. | 256 | — | 1 |
| AS395957US | POLARSEMI - Polar Semiconductor, LLC | 256 | — | 1 |
| AS397190US | WSP-DIGITAL - WSP | 256 | 1 | 2 |
| AS15338US | CEROBI - CEROBI LLC | 256 | — | 1 |
| AS399747US | AMSP-ASN - Aaron McDaniel, Sole Proprietor | 256 | 1 | 2 |
| AS62510US | NESATX - North East Independent School District | 256 | — | 1 |
| AS7362US | HST-CHRON - Hearst Newspapers, LLC | 256 | — | 1 |
| AS30546US | INFINEON TECHNOLOGIES AMERICAS CORP - Infineon technologies Americas Corp | 256 | 1 | 2 |
| AS54218US | BERENET - SYSTEM36 L.L.C. | 256 | 515 | 6 |
| AS16389US | ST-INTERNET-AS - Shurtape Technologies, LLC | 256 | — | 1 |
| AS394251US | CFF - Cystic Fibrosis Foundation | 256 | — | 1 |
| AS33675US | SURESCRIPTS - Surescripts, LLC | 256 | — | 1 |
| AS35944US | MEYER-SOUND - Meyer Sound | 256 | — | 1 |
| AS398967US | 810-SEVENTH-AVENUE-BGP - etc.venues NYC LLC | 256 | — | 1 |
| AS26500US | FISHER-TITUS - Fisher-Titus Medical Center | 256 | — | 1 |
| AS54692US | GS-ASN-01 - GuideStone Financial Resources of the Southern Baptist Convention | 256 | — | 1 |