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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 | 21,171 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,951 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,368 |
| 512 |
| — |
| 2 |
| AS14226US | STIFEL - Stifel Nicolaus and Company Incorporated | 512 | — | 2 |
| AS401645US | DATAIMPULSE-AS - Softoria LLC | 512 | — | 2 |
| AS33629US | NKU-AS1 - Northern Kentucky University | 512 | — | 2 |
| AS396066US | PASCO-COUNTY-BOCC - Pasco County Board of County Commissioners | 512 | — | 2 |
| AS401577US | STRATA-ASN-01 - StrataCare Solutions LLC | 512 | — | 2 |
| AS14458US | WORLDKITCHEN-1 - World Kitchen, LLC | 512 | — | 2 |
| AS54449US | GSC-GREENSBORONC - Gannett Supply Corp. - Greensboro, NC | 512 | — | 2 |
| AS12219US | MILLERS-SUPPLIES-AT-WORK-INC - Miller's Supplies at Work | 512 | — | 2 |
| AS196629US | DOMINION-AS Antipov Oleg | 512 | — | 2 |
| AS21553US | ASP-MAIN - Aspirus, Inc. | 512 | — | 2 |
| AS11737US | NMSL-6 - Nu-Age Managed Services, LLC | 512 | — | 2 |
| AS55128US | MCFASSOC - McFarlane Associates LLC | 512 | 17 | 4 |
| AS27201US | COLVA - CITY OF LYNCHBURG | 512 | — | 2 |
| AS10918US | ACCURANT - Accurant Cloud Services LLC | 512 | 65.5K | 3 |
| AS394294US | OTC-AS - Oriental Trading Company, Inc. | 512 | — | 2 |
| AS395369US | HPSAS001 - HPS Investment Partners, LLC | 512 | — | 2 |
| AS29928US | EDATA - LexisNexis Risk Data Management Inc. | 512 | — | 1 |
| AS25980US | SKYHELM-DC1 - SkyHelm LLC | 512 | — | 2 |
| AS63205US | ELWOOD - Elwood Union Free School District | 512 | — | 2 |
| AS40524US | FUNSOFT-AS - Fundamental Software, Inc. | 512 | — | 2 |
| AS6488US | DS6488-0 - AMUG | 512 | — | 2 |
| AS397915US | HALLRECORDS-01 - Hall Records Music | 512 | 16 | 2 |
| AS16783US | INVITE-US - INVITE Networks Incorporated | 512 | — | 1 |
| AS54732US | DOW-NETWORKS - Dow Networks | 512 | — | 1 |
| AS401014US | HQ-HAE-ASN-01 - Helena Agri-Enterprise, LLC | 512 | — | 2 |
| AS398105US | GO-DADDY-COM-LLC - GoDaddy.com, LLC | 512 | 2 | 4 |
| AS29711US | CENTURA-HEALTH - Centura Health Corporation | 512 | — | 2 |
| AS396873US | BABYPENGUIN - Baby Penguin LLC | 512 | — | 2 |
| AS62723US | CARFAX - CARFAX, Inc. | 512 | — | 2 |
| AS14419US | MOSSYOAK - HAAS OUTDOORS, Inc. | 512 | — | 2 |
| AS397400US | UCCSL-01 - United Call Center Solutions LLC | 512 | — | 2 |
| AS400734US | LTI - Link Technologies, Inc. | 512 | 16 | 3 |
| AS13705US | COLQUITT-CONNECT-01 - City of Colquitt | 512 | — | 2 |
| AS11275US | NBH-HOLDINGS-CORPORATION - National Bank Holdings Corporation | 512 | — | 2 |
| AS17361US | AUTO-AS17363 - Automated Securities Clearance LLC | 512 | — | 2 |
| AS36767US | WMUR-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS1447US | CHIPOTLE-MEXICAN-GRILL-INC - Chipotle Mexican Grill, INC | 512 | — | 2 |
| AS398287US | BITCOM - Bitcom | 512 | — | 2 |
| AS32009US | PERFECTSERVE-INC - PERFECTSERVE, INC. | 512 | — | 2 |
| AS46089US | AS2-NAVIS - Navis | 512 | — | 2 |
| AS32334US | CLOUDCALL-AS - CloudCall Inc | 512 | 1 | 3 |
| AS398942US | PZNET - Pueblo of Zia | 512 | 4.1K | 3 |
| AS394479US | EMA-RAD - eMoney Advisor | 512 | — | 2 |
| AS5651US | GMLL-AS - GMLL CAPITAL MANAGEMENT LLC | 512 | — | 2 |
| AS23247US | SAMTECNA - Samtec, inc. | 512 | — | 2 |
| AS32697US | NMFN - NM Fiber Network, LLC | 512 | 65.5K | 3 |