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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 |
| AS22980US | APOGEE-TELECOM-RESERVED - Apogee Telecom Inc. | 256 | — | 1 |
| AS32936US | LAKEWOODCHURCH - Lakewood Church | 256 | — | 1 |
| AS393563US | ACTIFIO-AS - Actifio, Inc. | 256 | — | 1 |
| AS398463US | MSUFSD-1-AS - Mount Sinai Union Free School District | 256 | — | 1 |
| AS395641US | USCB-01 - USCB Inc | 256 | — | 1 |
| AS218802US | NORTHSHIELD Northshield LLC | 256 | — | 1 |
| AS399118US | OPB-MACADAM-01 - Oregon Public Broadcasting | 256 | — | 1 |
| AS397868US | WHITEHAT-US-PROD-2 - Synopsys Inc. | 256 | — | 1 |
| AS396275US | MHSH-GWY-BGP1 - Material Handling Systems, Inc. | 256 | — | 1 |
| AS2886US | AS2886 - Anton Kapela, Sole Proprietorship | 256 | — | 1 |
| AS53372US | TGEN - TRANSLATIONAL GENOMICS RESEARCH INSTITUTE (TGEN) | 256 | — | 1 |
| AS1222US | EPCC-AS - EL PASO COMMUNITY COLLEGE | 256 | — | 1 |
| AS53723US | ROUTESI-MAIN - Routesi LLC | 256 | 256 | 2 |
| AS393396US | TMLLC - Technical Momentum, LLC | 256 | — | 1 |
| AS54274US | AS54274 - Henny Penny Corporation | 256 | — | 1 |
| AS395757US | SCCFCU-PUBLIC01 - Santa Clara County Federal Credit Union | 256 | — | 1 |
| AS36047US | STUDIO-PRODUCTIONS-NY - CBS Corporation | 256 | — | 1 |
| AS12235US | SEN-1 - SmartEdgeNet LLC | 256 | — | 1 |
| AS27508US | TRDLNK - TradeLink, LLC | 256 | — | 1 |
| AS54506US | STAYPINEAPPLE - Pineapple Hospitality Company | 256 | — | 1 |
| AS401265US | LWR-338 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS31754US | NORTHWEST-FINANCIAL-CORP - Northwest Financial Corp | 256 | — | 1 |
| AS40367US | HRH-GHCH - Harbor Regional Health Community Hospital | 256 | — | 1 |
| AS894US | NINJA-IX-SERVICES-ASN - Ninja-IX Services LLC | 256 | 257 | 3 |
| AS19455US | NORTH-KANSAS-CITY-SCHOOLS - North Kansas City Schools | 256 | — | 1 |
| AS26005US | CALLAWAYGOLF - Callaway Golf | 256 | — | 1 |
| AS397713US | ARCHULETA-INNOVATION-DESIGNS - Mt San Rafael Hospital | 256 | — | 1 |
| AS400312US | KHITOMER-NETWORKS - KHITOMER NETWORKS, LLC | 256 | 65.5K | 2 |
| AS27261US | STOF-GAMING-HOLLYWOOD - Seminole Gaming | 256 | — | 1 |
| AS11330US | BANKPLUS-NETWORK-01 - BankPlus | 256 | — | 1 |
| AS26627US | AS-PILOSOFT - Pilosoft, Inc. | 256 | — | 1 |
| AS402566US | MODERN-CONNECTIVITY - Modern | 256 | — | 1 |
| AS395206US | ROTARYCORP-ASN - Rotary Corporation | 256 | — | 1 |
| AS54292US | SICO-AS - Starr International USA, Inc. | 256 | — | 1 |
| AS395361US | VPAY - StoneEagle Services, Inc. | 256 | 1 | 2 |
| AS400994US | OSSD-AS - Oneida Special School District | 256 | — | 1 |
| AS46980US | NITEMARE - Nitemare Networking | 256 | 4.1K | 2 |
| AS400735US | SMARTGRID-AS400735 - Smart Grid, LLC | 256 | — | 1 |
| AS397275US | FB-ASN - Five Below, Inc | 256 | — | 1 |
| AS400827US | HCDL-VIRGINIA-DATA-CENTER - H5 Data Centers | 256 | — | 1 |
| AS398389US | PIONEERFCU-01 - Pioneer FCU | 256 | — | 1 |
| AS207563US | POSEIDON Poseidon Laboratories LLC | 256 | 2 | 3 |
| AS11285US | KW-CORPORATION - K W Corporation, Inc. | 256 | — | 1 |
| AS10544US | NETGAIN-TECHNOLOGIES - NetGain Technologies, Inc. | 256 | — | 1 |
| AS399505US | EBNHC-AS - East Boston Neighborhood Health Center | 256 | — | 1 |
| AS4887US | PORTOFCC - Port of Corpus Christi Authority | 256 | — | 1 |