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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS620US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS3032US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3009US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2938US | SPRINT-MRN - U.S. Sprint | — | — | 0 |
| AS3080US | CITI14 - Citigroup Inc. | — | — | 0 |
| AS2582US | CDE - California Department of Education | — | — | 0 |
| AS2009US | BT-CLOUD-CONNECT - INFONET Services Corporation | — | — | 0 |
| AS1867US | DISN-PILOTNET13 - RTX BBN Technologies, Inc. | — | — | 0 |
| AS1976US | DNIC-AS-01976 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS53921US | TTCLA - The Telephone Connection of Los Angeles, Inc. | — | — | 0 |
| AS53637US | BASS3 - Signature Aviation USA, LLC | — | — | 0 |
| AS560US | LVLT-560 - Level 3 Parent, LLC | — | — | 0 |
| AS2759US | MCI-NETC - Verizon Business | — | — | 0 |
| AS47080US | SINGLEHOP-LLC-2 - Internap Holding LLC | — | — | 0 |
| AS47033US | CANTON-DC - MTD Products, Inc | — | — | 0 |
| AS63075US | GL-SDWAN - GeoStar, LLC. | — | — | 0 |
| AS63158US | LAHARPE - La Harpe Communications INC. | — | — | 0 |
| AS62481US | TRUIST-ASN-62481 - Truist Financial Corporation | — | — | 0 |
| AS58251US | PANDA-AS Panda Network,Inc | — | — | 0 |
| AS54504US | HEITAS - Heitman LLC. | — | — | 0 |
| AS62655US | TRANSFORMATIVEMED - TransformativeMed, Inc. | — | — | 0 |
| AS46092US | RAI - RESOURCE AMERICA | — | — | 0 |
| AS43308US | Michael-Kehoe Michael Kehoe | — | — | 0 |
| AS22194US | SWITCH-COMMUNICATIONS - SWITCH, LTD | — | — | 0 |
| AS30222US | CONTE-25-XERO-PROJECT - Contegix | — | — | 0 |
| AS30209US | DATAPIPE-ASN3 - DataPipe, Inc. | — | — | 0 |
| AS30040US | PIM-ASN - Amundi Asset Management US, Inc. | — | — | 0 |
| AS27063US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS29722US | ACLAB2 - Ascend Clinical, LLC | — | — | 0 |
| AS27633US | THOMSON-REUTERS - Thomson Reuters Holdings Inc | — | — | 0 |
| AS22547US | VGRS-AC20 - VeriSign Global Registry Services | — | — | 0 |
| AS22723US | UN - United Nations | — | — | 0 |
| AS22074US | CAL-NYC-ASN - Calamos Advisors LLC | — | — | 0 |
| AS21875US | PICK-INTERNET - Sands River Wireless | — | — | 0 |
| AS21524US | WSP - Parsons Brinckerhoff Inc. | — | — | 0 |
| AS23345US | WEBCORE - EvolveIP, LLC | — | — | 0 |
| AS26331US | ZENFOLIO - Zenfolio, Inc. | — | — | 0 |
| AS26169US | QTD - QTD Systems | — | — | 0 |
| AS25685US | FNIS-ALB - Fidelity National Information Services, Inc. | — | — | 0 |
| AS25911US | US-REPSOLSERVICESCOMPANY-EX-TLM - Repsol Services Company | — | — | 0 |
| AS23326US | BROADCOM-CORP - Avago Technologies U.S. Inc. | — | — | 0 |
| AS23287US | WBD-AS23287 - Discovery Communications | — | — | 0 |
| AS22963US | AFINITI-AI - Afiniti, INC. | — | — | 0 |
| AS7061US | COGENT-7061 - Cogent Communications, LLC | — | — | 0 |
| AS199018US | ASXKRME Xkrme Network LLC | — | 82 | 4 |
| AS733US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |