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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 | 24,632 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,307 |
| 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.
32,210 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 256 |
| — |
| 1 |
| AS19896US | AS-ALBROHOLDINGS-1 - Albro Holdings LLC | 256 | 1 | 2 |
| AS54808US | SUN-COAST-RESOURCES - SUN COAST RESOURCES, INC | 256 | — | 1 |
| AS394683US | ACHE - Arkansas Colleges of Health Education | 256 | — | 1 |
| AS402409US | QFANALYTICS - QF | 256 | — | 1 |
| AS402117US | WHITE-TIE-PRODUCTIONS - White Tie Productions LLC | 256 | — | 1 |
| AS16636US | CWF-ASN-BGP - The Colonial Williamsburg Foundation | 256 | — | 1 |
| AS393364US | STARWOOD-NYC-417FIFTH - Marriott International, Inc. | 256 | — | 1 |
| AS198015US | INOXWEB-LLC Inoxweb LLC | 256 | — | 1 |
| AS397059US | CNSC-PBI - Polar Bears International | 256 | — | 1 |
| AS6302US | AGP-AS1 - AG PROCESSING INC., A COOPERATIVE | 256 | — | 1 |
| AS15019US | ZAPPOS - Zappos.com, Inc. | 256 | — | 1 |
| AS63064US | YCAS - Yotta Connect LLC | 256 | — | 1 |
| AS22897US | 84LUMB-CORP - 84 LUMBER COMPANY | 256 | — | 1 |
| AS394186US | SE-BRANDS-01 - Self Esteem Brands, LLC | 256 | 4 | 2 |
| AS400009US | RELSPACE-ASN-01 - Relativity Space, Inc. | 256 | — | 1 |
| AS11494US | KELLOGGCC - Kellogg Community College | 256 | — | 1 |
| AS53557US | PITTS-18 - Pittsburgh Penguins LP | 256 | — | 1 |
| AS18473US | EC-BACKUP - Spring View Hospital | 256 | — | 1 |
| AS30379US | JEFFPARISH - Parish of Jefferson | 256 | — | 1 |
| AS51095US | E1-EMEA EdgeUno, Inc. | 256 | 16 | 2 |
| AS63189US | ANDESASERVICESINC - Andesa Services, Inc | 256 | — | 1 |
| AS395234US | ANESTHESIALLC - ANESTHESIA BUSINESS CONSULTANTS LLC | 256 | — | 1 |
| AS22022US | HUB-GROUP - Hub Group, Inc. | 256 | — | 1 |
| AS54537US | STOCKMAN-BANK-19 - Stockman Bank of Montana | 256 | — | 1 |
| AS13858US | CPG-ASN2 - TransCanada Pipelines Limited | 256 | — | 1 |
| AS26640US | OGFIBER - Oso Grande Technologies, Inc. | 256 | — | 1 |
| AS29956US | WAML-ASN - Waterfall Asset Management, LLC | 256 | — | 1 |
| AS398458US | LINCOLN-COMPUTERS-SERVICES - Lincoln IT LLC | 256 | — | 1 |
| AS53900US | ORBIMED - OrbiMed Advisors, LLC | 256 | — | 1 |
| AS23174US | ARKEMAINC - Arkema Inc. | 256 | — | 1 |
| AS23469US | HIGHWOODS - Highwoods Properties, Inc. | 256 | — | 1 |
| AS395615US | COF-EQX-SEA-PP - Capital One Financial Corporation | 256 | — | 1 |
| AS30037US | AS30037 - Fiserv Solutions, LLC | 256 | 1 | 2 |
| AS395603US | NASSAU-COLISEUM - AEG | 256 | — | 1 |
| AS17315US | OTELCO-CORP - GoNetSpeed | 256 | — | 1 |
| AS15079US | IONIC-AS - Ionic Capital Management LLC | 256 | — | 1 |
| AS15281US | NGCPUB - National Gypsum Company | 256 | — | 1 |
| AS395841US | TAMCLOUD - tamCloud, Inc. | 256 | 4.1K | 2 |
| AS17333US | COLLEGE-OF-SAINT-MARY - College of Saint Mary | 256 | — | 1 |
| AS21629US | TWR - TWR Tech, LLC | 256 | 3 | 4 |
| AS46168US | CALLTOWER - CallTower, Inc. | 256 | — | 1 |
| AS402698US | MINUTE - Minute | 256 | 256 | 2 |
| AS46605US | MGRC - MCGRATH RENTCORP | 256 | — | 1 |
| AS21611US | NET-WSGWIN - Wilson Sporting Goods Co. | 256 | — | 1 |
| AS401066US | LOWPING-US - LowPing | 256 | 2 | 3 |
| AS395296US | MSFA - MSFA | 256 | — | 1 |