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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 |
| 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 |
| AS33580US | VENTURETECHSOL - Venturetech Solutions, LLC | 256 | — | 1 |
| AS402090US | DANIEL - 10990 W. Highlander Rd. LLC | 256 | — | 1 |
| AS399598US | LNS - Local Network Solutions, Inc. | 256 | 65.5K | 2 |
| AS33431US | MLS-NET-01 - Major League Soccer | 256 | — | 1 |
| AS18890US | HOGARTH-WORLDWIDE - Hogarth Worldwide Inc | 256 | — | 1 |
| AS402183US | BEAZER-250 - BEAZER GENERAL SERVICES, INC. | 256 | — | 1 |
| AS54019US | ASN-WEIS - Weis Markets, Inc | 256 | — | 1 |
| AS401995US | ACH-ASN-01 - Arkansas Children's Hospital | 256 | — | 1 |
| AS394439US | BMCSAAS-US - BMC Software, Inc. | 256 | — | 1 |
| AS33124US | STORMDADDYISP - Storm Daddy Residential Broadband LLC | 256 | — | 1 |
| AS22007US | TJG-LCO - The Jay Group, Inc. | 256 | — | 1 |
| AS396231US | ABILITY-BUSINESS - Ability Business | 256 | 1 | 2 |
| AS402495US | BSH-ENT-01 - BSH | 256 | 256 | 2 |
| AS399149US | GOOD-SHEPHERD - Good Shepherd Medical Center | 256 | — | 1 |
| AS397413US | SAISD - San Antonio Independent School District | 256 | — | 1 |
| AS22802US | AMERISURE - Amerisure Mutual Insurance Company | 256 | — | 1 |
| AS62924US | COBNET-ASN-1 - City of Bryan, Texas | 256 | — | 1 |
| AS402555US | RIKKIA-NETWORK-01 - Rikkia | 256 | 1 | 2 |
| AS397675US | ASD-WHP-BLOCK - Armstrong School District | 256 | — | 1 |
| AS397568US | CLEARCORRECT - ClearCorrect | 256 | 2 | 3 |
| AS398339US | PRIME-NET-15-CA - PrimeNet, Inc | 256 | — | 1 |
| AS399872US | CULLMAN-REGIONAL-MEDICAL-CENTER - Cullman Regional | 256 | — | 1 |
| AS63135US | TABOR-COLLEGE-01 - Tabor College, Inc. | 256 | — | 1 |
| AS395960US | BUCK-INSTITUTE - Buck Institute for Research on Aging | 256 | — | 1 |