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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,129 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,664 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,947 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,375 |
| 1K |
| — |
| 3 |
| AS30233US | PAYCHEX-O - Paychex Inc. | 1K | — | 1 |
| AS397770US | TRINITYLINK - Trinity Link LLC | 1K | — | 4 |
| AS40594US | BULLE - Bulle Media Group, Inc. | 1K | — | 4 |
| AS55064US | ARISTAASN1 - Arista Networks, Inc. | 1K | 3 | 7 |
| AS397818US | LUMENTUMLLC - Lumentum Operations LLC | 1K | — | 4 |
| AS19250US | JWS-ASN-01 - John Wiley & Sons, Inc. | 1K | — | 2 |
| AS21519US | SBG-AS2 - Sinclair Broadcast Group, Inc. | 1K | — | 1 |
| AS400456US | DREAMWIRE - ITDreamwire | 1K | — | 1 |
| AS62861US | RAYCOM-MEDIA-RSA - Gray Media, Inc. | 1K | — | 4 |
| AS204491US | TEKNOSOS TEKNOSOS LLC | 1K | 7.9M | 19 |
| AS40460US | WECONNECT - WeConnect | 1K | — | 1 |
| AS100US | FMC-CTC - FMC Central Engineering Laboratories | 1K | — | 4 |
| AS398726US | CABBIT-TECH-01 - Cabbit Technology LLC | 1K | — | 1 |
| AS394903US | HCDL-PHILADELPHIA-DATA-CENTER - H5 Data Centers | 1K | 256 | 5 |
| AS19247US | AS19247 - Northwestern Memorial Hospital | 1K | — | 4 |
| AS394230US | CDCK - Civilized Discourse Construction Kit, Inc. | 1K | 5 | 9 |
| AS393837US | VNTX - VERONA NETWORKS LLC | 1K | 65.5K | 2 |
| AS62552US | SANMARINOUSD - San Marino Unified School District | 1K | — | 1 |
| AS40648US | LEE-BOCC-AS - Lee County BoCC | 1K | — | 3 |
| AS46814US | MEDICA-NET - Medica Health Plans | 1K | — | 4 |
| AS40716US | DOTCOMM - DOT.Comm | 1K | 256 | 5 |
| AS18640US | IDEALAB - Idealab | 1K | 1 | 4 |
| AS30224US | DISNEY-ABCBCS-NY - Disney Worldwide Services, Inc. | 1K | — | 1 |
| AS46745US | GCSSK12NET - Gainesville City Schools | 1K | — | 1 |
| AS18500US | PACCAR - PACCAR INFORMATION TECHNOLOGY DIVISION | 1K | — | 3 |
| AS26217US | VPHOLDINGS - V P Holdings, Inc. | 1K | — | 1 |
| AS398979US | RINGER-MOBILE-01 - Ringer | 1K | — | 2 |
| AS393989US | 3NOM-WEST - 3nom | 1K | — | 4 |
| AS40493US | GAYLORD PACIFIC IP MANAGEMENT - Gaylord Pacific Resort and Convention Center | 1K | — | 2 |
| AS206533US | CentrixNodes CentrixNodes LLC | 1K | — | 4 |
| AS36259US | AS-NALCO-NA - Ecolab, Inc. | 1K | — | 1 |
| AS53504US | PULSENET-OPTIBAND - PulseNET | 1K | — | 4 |
| AS401656US | ATINETWORKS-01 - ATI NETWORKS, INC. | 1K | — | 3 |
| AS22495US | SIMON-208-0 - Simon Property Group LP | 1K | — | 2 |
| AS397288US | MCREY - McNaughton-McKay Electric Company | 1K | — | 4 |
| AS397312US | LAKE-LINX - Lake Linx, Inc. | 1K | 65.5K | 5 |
| AS18440US | NCCI - National Council on Compensation Insurance, Inc. | 1K | — | 4 |
| AS12027US | HYTRON-CA - Hytron Network Services (US) LLC | 1K | — | 3 |
| AS5069US | NAVI-AS-CLEARBLUE - Navisite Opco LLC | 1K | — | 1 |
| AS18482US | CORASN01 - City of Raleigh | 1K | — | 3 |
| AS17374US | WALMART - Wal-Mart Stores, Inc. | 1K | — | 3 |
| AS395746US | TURN5-DC - Turn 5, Inc. | 1K | 256 | 3 |
| AS395594US | CONSUMERSENERGYCO-ASN - Consumers Energy Company | 1K | — | 2 |
| AS13751US | UAGC - University of Arizona Global Campus | 1K | — | 1 |
| AS16520US | SCFEDERAL - South Carolina Federal Credit Union | 1K | — | 2 |
| AS39954US | GATEWAYTC - Gateway Technical College | 1K | — | 4 |