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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,226 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,248 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 408 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,718 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,959 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,300 |
| — |
| — |
| 0 |
| AS53448US | GAMES-ASN - REALNETWORKS LLC | — | — | 0 |
| AS53490US | MEDPLUS - MedPlus, Inc. | — | — | 0 |
| AS53547US | LHH - Lee Hecht Harrison LLC | — | — | 0 |
| AS53569US | AS-SANTA-MONICA-MD - Guggenheim Services LLC | — | — | 0 |
| AS53611US | EMS99AS01 - EARTHMETA MULTIMEDIA STUDIOS | — | — | 0 |
| AS53632US | AS-DATATILITY-GLOBAL - Datatility, Inc. | — | — | 0 |
| AS53691US | ISN-4 - Interop Show Network | — | — | 0 |
| AS53711US | OWENS-CORNING - Owens-Corning | — | — | 0 |
| AS53761US | SPARTAN-HOST - Spartan Host LLC | — | — | 0 |
| AS53776US | SPECTRUMRETIREMENT - Spectrum Retirement Communities, L.L.C. | — | — | 0 |
| AS53857US | EN-53857 - EllumNet LLC | — | — | 0 |
| AS53859US | RACE - Race Tech, LLC | — | — | 0 |
| AS53886US | NASCENT - Nascent US LLC | — | — | 0 |
| AS54011US | NYDH - NewYork-Presbyterian Hospital | — | — | 0 |
| AS54069US | AU-OHIO-BF - Aunalytics, Inc | — | — | 0 |
| AS54088US | TRAXTECH - Trax Technologies, Inc | — | — | 0 |
| AS54125US | MANDIANT - Mandiant, Inc. | — | — | 0 |
| AS54220US | IISL-COM - International Integrated Solutions | — | — | 0 |
| AS54285US | ISD-709-01 - Duluth Public Schools | — | — | 0 |
| AS54333US | MVBFIN - MVB Financial Corp | — | — | 0 |
| AS54388US | ZITOMSE - Zito Media, L.P. | — | — | 0 |
| AS54402US | MOBI - Pinnacle Online | — | — | 0 |
| AS54423US | XANDEX-INTERNET1 - Xandex Inc. | — | — | 0 |
| AS54467US | XNNET - XNNET LLC | — | — | 0 |
| AS54487US | FDIL-NET-001 - Harley-Davidson, Inc. | — | — | 0 |
| AS54577US | NEXTGENHEALTH - NextGen Healthcare Information Systems, LLC. | — | — | 0 |
| AS54596US | USFON-AS1 - USFON Inc. | — | — | 0 |
| AS54609US | TRACE3 - Trace3, Inc. | — | — | 0 |
| AS54674US | ASN-DMPL2 - GigeNET | — | — | 0 |
| AS54823US | SSI-EASTCOAST - Survey Sampling International, LLC | — | — | 0 |
| AS54844US | COMFORTCONSULTING-AS - Comfort Consulting | — | — | 0 |
| AS54868US | WIDERANGEBROADBAND - Nextlink Broadband | — | — | 0 |
| AS54935US | CITY-OF-MCALLEN - City of McAllen | — | — | 0 |
| AS54984US | FSRMIA-01 - FirstService Residential, Inc. | — | — | 0 |
| AS55030US | DTZ-AMERICAS - Cushman & Wakefield | — | — | 0 |
| AS55042US | USCONECLTD-1992 - US Conec Ltd | — | — | 0 |
| AS55051US | EBH02 - EBOUNDHOST.com | — | — | 0 |
| AS55160US | PAGE-RESTRICTED - Page Southerland Page, Inc. | — | — | 0 |
| AS55184US | BLUESHIFT - Blue Shift Technologies Inc. | — | — | 0 |
| AS55193US | LRC-EV-ASN - LR Communications, Inc. | — | — | 0 |
| AS59798US | SENSS Zenlayer Inc | — | — | 0 |
| AS62491US | CUMULUS - Nvidia Corporation | — | — | 0 |
| AS62492US | WTUC-AS - WNET TELECOM USA Corp. | — | — | 0 |
| AS62536US | REDSAIL-PUBLIC-NETWORK - NEW-TECH COMPUTER SYSTEMS, INC. | — | — | 0 |
| AS62599US | VH - Virtual Hosting, Inc. | — | — | 0 |
| AS62639US | QUADRANET - QuadraNet Enterprises LLC | — | — | 0 |