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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 2 |
| AS25711US | VMC-PELLA-AS - Vermeer Manufacturing Company | 512 | — | 2 |
| AS32368US | MOUSER-ELECTRONICS - mouser electronics | 512 | — | 2 |
| AS30704US | WC-1162 - WellSky Corporation | 512 | — | 2 |
| AS33312US | FFBM-0049 - Premier Bank | 512 | — | 1 |
| AS773US | PARSONS-PGS-2 - Parsons Corporation | 512 | — | 2 |
| AS30367US | STRATEGIC-VALUE-PARTNERS - Strategic Value Partners | 512 | — | 2 |
| AS400045US | DUMONT-TELEPHONE-COMPANY - Dumont Telephone Company | 512 | 256 | 3 |
| AS11298US | KLD-ATX - Renew Data Corp. | 512 | — | 2 |
| AS399676US | KANIKSU-01 - Kaniksu, LLC | 512 | — | 2 |
| AS30403US | EL-ROCHESTER-NY - Ellucian Company LP | 512 | — | 2 |
| AS401763US | BLUEPULSENETWORKSLLC - Blue Pulse Networks LLC | 512 | 4.1K | 3 |
| AS54102US | FABFIBERNET - Fabulous Fiber LLC | 512 | 4.1K | 2 |
| AS64255US | EM-888 - Intercontinental Exchange, Inc. | 512 | — | 2 |
| AS26940US | LEVI-STRAUSS-CO - Levi Strauss & Co. | 512 | — | 2 |
| AS36709US | OPTIMA - NP Information Systems | 512 | — | 2 |
| AS36450US | UTSYSADM-AS-1 - University of Texas System Administration | 512 | — | 1 |
| AS53721US | CORETELLIGENT - Coretelligent, LLC | 512 | — | 2 |
| AS22751US | MOTHIC-INFINET - Mothic Technologies LLC | 512 | 4.1K | 3 |
| AS64228US | ONEIT - OneIT, Inc. | 512 | — | 2 |
| AS401894US | CYBERDELIA-INTENETWORKING-GROUP - /dev/hack | 512 | 256 | 3 |
| AS20003US | MEMBERS1STFCU - Members 1st Federal Credit Union | 512 | — | 2 |
| AS395141US | PRMHQ-AS1 - Primisys Computer Systems & Support, LLC | 512 | 65.5K | 3 |
| AS396279US | WASHINGTONELECTRIC-AS-1 - WASHINGTON ELECTRIC COOPERATIVE, INC. | 512 | 2 | 4 |
| AS36313US | LTICTASN01 - Lendingtools.com Inc. | 512 | — | 2 |
| AS33419US | TRIBAL-FUSION - Exponential Interactive, Inc. | 512 | — | 2 |
| AS19691US | 888-US - 888 US Inc. | 512 | — | 2 |
| AS22805US | CNL-FINANCIAL-GROUP - CNL Financial Group Inc. | 512 | — | 2 |
| AS62647US | GFFCU - Grow Financial Federal Credit Union | 512 | — | 2 |
| AS402123US | UNMTA-AS-01 - UNMTA LLC | 512 | 256 | 3 |
| AS399295US | STC-01 - Somerset Trust Company | 512 | — | 2 |
| AS394427US | ZOICSTUDIOS - Zoic Studios | 512 | — | 2 |
| AS401441US | GOOSEWORKS - Gooseworks LLC | 512 | 4.1K | 2 |
| AS46218US | COMPORIUM-AS-2 - Comporium, Inc | 512 | 65.5K | 6 |
| AS397273US | RENDER - Render | 512 | — | 2 |
| AS19768US | SCAN - SCAN Health Plan | 512 | — | 2 |
| AS18583US | HATTERASCPC - Hatteras CPC | 512 | — | 2 |
| AS40067US | NEWEGG - Newegg Inc. | 512 | — | 2 |
| AS97US | NTTA-97 - NTT America, Inc. | 512 | — | 2 |
| AS402242US | NEVCOFIBER-AS - Nevada County Fiber Inc. | 512 | — | 1 |
| AS401900US | PROCIRRUS - PROCIRRUS TECHNOLOGIES, INC | 512 | — | 2 |
| AS62540US | DRAKE-AS - Drake Holdings LLC | 512 | — | 2 |
| AS40350US | KEYCOOP - Key Cooperative | 512 | — | 2 |
| AS33529US | PWC-136-33529 - PAC Worldwide Corporation | 512 | — | 2 |
| AS400530US | DCS-01 - Dubuque Community Schools | 512 | — | 2 |
| AS396014US | TSG - TSG Resources, Inc. | 512 | — | 2 |
| AS396868US | SMBC-CM - SMBC Capital Markets, Inc. | 512 | — | 2 |