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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 |
| ADVENTIST-HEALTHCARE-MARYLAND - Adventist Healthcare |
| 256 |
| — |
| 1 |
| AS401508US | INNGEST-01 - Inngest Inc. | 256 | 2 | 3 |
| AS393800US | AWMF - The Andrew W. Mellon Foundation | 256 | — | 1 |
| AS401106US | TECHIES365 - Techies365 | 256 | 3 | 4 |
| AS22416US | LIBERTYDENTALPLAN - Liberty Dental Plan | 256 | — | 1 |
| AS397516US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 256 | 1 | 2 |
| AS219051US | XND-NET X Next Digital LLC | 256 | 20 | 6 |
| AS36362US | MAIL-AMERICA-COMMUNICATIONS-INC - Mail America Communications, Inc | 256 | — | 1 |
| AS27347US | DATAPRO-NETWORKS - Datapro Telecom Solutions LLC | 256 | — | 1 |
| AS397995US | CITYOFEDMOND - City of Edmond | 256 | — | 1 |
| AS401770US | OMNIVERY-US - Omnivery | 256 | — | 1 |
| AS32691US | CSC - Corporation Service Company | 256 | — | 1 |
| AS19716US | UNITED-SUPERMARKETS - UNITED SUPERMARKETS LLC | 256 | — | 1 |
| AS19359US | 19359 - GID Investment Advisers LLC | 256 | — | 1 |
| AS40655US | WINTHROP-AS - Winthrop & Weinstine, P.A. | 256 | — | 1 |
| AS36186US | 3DS-AS02 - 3ds Communications LLC | 256 | 256 | 2 |
| AS396301US | YETI-COOLERS - YETI Coolers, LLC | 256 | — | 1 |
| AS54693US | AS24950 - AlphaSimplex Group, LLC | 256 | — | 1 |
| AS47244US | IXGATE MEDIA PLUS SOLUTION INC | 256 | — | 1 |
| AS15253US | SDSHERIFF-2 - SDSO | 256 | — | 1 |
| AS397495US | TOWNOFOROVALLEY-02 - Town of Oro Valley | 256 | — | 1 |
| AS26355US | TIDIPRODUCTSLLC - TIDI Products LLc | 256 | — | 1 |
| AS215520US | JOSH-BOYD JOSHUA BOYD | 256 | 1 | 2 |
| AS46741US | AS-LONDON - Morningstar, Inc. | 256 | — | 1 |
| AS54678US | GRMIMS - GRM Information Management Services, LLC | 256 | — | 1 |
| AS394857US | RVRWLK - Riverwalk Consulting LLC | 256 | 65 | 3 |
| AS63378US | JJI - J. Josephson, Inc. | 256 | — | 1 |
| AS26376US | IBC4-AS - International Bonded Couriers, Inc. | 256 | — | 1 |
| AS4940US | IAP-WORLDWIDE-SERVICES - IAP World Service Inc | 256 | — | 1 |
| AS25834US | LAYNE-ASN-1 - Layne Christensen Company | 256 | — | 1 |
| AS399344US | DISNEY-TELEVISION-STUDIOS - Disney Worldwide Services, Inc. | 256 | — | 1 |
| AS32384US | MILLERWELDSASN01 - MILLER Electric Mfg. Co. | 256 | — | 1 |
| AS32774US | NGK-SPARKPLUGS-USA - NGK Sparkplugs USA | 256 | — | 1 |
| AS54619US | GHCSCW - GROUP HEALTH COOPERATIVE OF SOUTH CENTRAL WISCONSIN | 256 | — | 1 |
| AS395613US | ASNFPT300 - Footprint Solutions | 256 | — | 1 |
| AS33560US | LINCOLNINVESTMENTPLANNING - Lincoln Investment Planning, LLC. | 256 | — | 1 |
| AS394553US | SARC-01 - Samsung Austin Research and Development Center | 256 | — | 1 |
| AS399820US | ATOMIC-NETWORKS-1 - SPARKED HOST LLC | 256 | 1 | 2 |
| AS46940US | AS46940 - IAC/InterActiveCorp | 256 | — | 1 |
| AS62580US | PILOT-CORP - Pilot Fiber, Inc. | 256 | — | 1 |
| AS11073US | MPR-DUAL-INT - Minnesota Public Radio | 256 | — | 1 |
| AS19010US | HODC - FloWorks International LLC | 256 | — | 1 |
| AS62991US | CVCH-AS - Columbia Valley Community Health | 256 | — | 1 |
| AS26382US | APAHQ - Allied Pilots Association | 256 | — | 1 |
| AS30053US | DUQUESNE-CAPITAL-MANAGEMENT-LLC - DUQUESNE CAPITAL MANAGEMENT LLC | 256 | — | 1 |
| AS26436US | IMS-ASN - Inperium Management Services, Inc. | 256 | — | 1 |
| AS23211US | JCOM-2 - J2 Cloud Services, LLC | 256 | — | 1 |