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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,289 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,731 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,972 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,335 |
| — |
| — |
| 0 |
| AS13757US | ASBDS - Blue diamond solutions inc | — | — | 0 |
| AS13792US | INTERNAP-BLK3 - Unitas Global | — | — | 0 |
| AS13856US | GDRG-NET-01 - Global Data Resource Group LLC | — | — | 0 |
| AS13908US | BLOOMBERG-700 - Bloomberg, LP | — | — | 0 |
| AS13995US | PDRINET1 - Personnel Decisions Research Institutes, Inc. | — | — | 0 |
| AS14040US | XO-ASN1 - Verizon Business | — | — | 0 |
| AS14107US | PCINW-PN001 - Preferred Connections, Inc. NW | — | — | 0 |
| AS14130US | BPC-164-ASN - Boston PainCare Center | — | — | 0 |
| AS14284US | ROCKHURST - ROCKHURST UNIVERSITY | — | — | 0 |
| AS14326US | MFCLLC - PacketFabric, Inc. | — | — | 0 |
| AS14376US | SSF-22 - Fidelity National Information Services, Inc. | — | — | 0 |
| AS14391US | WNSC-NET-12-40-212-0-1 - Automatic Data Processing, Inc. | — | — | 0 |
| AS14400US | CLST-ASN-01 - Clear Street | — | — | 0 |
| AS14455US | SUNGARD-RECOVERY - Sungard Availability Network Solutions, Inc. | — | — | 0 |
| AS14580US | REGENTEC - Regeneration Technologies, Inc. | — | — | 0 |
| AS14704US | SURFX - SurfXpress, LLC | — | — | 0 |
| AS14730US | CAVTEL01 - Windstream Communications LLC | — | — | 0 |
| AS14751US | ONECOM-CVT - Windstream Communications LLC | — | — | 0 |
| AS14764US | ROWE-MIBD02 - Rowe Furniture | — | — | 0 |
| AS14768US | NETSG-AS-AP - Network Solutions Group Pty Ltd | — | — | 0 |
| AS14802US | UMPQUABANK - UMPQUA BANK | — | — | 0 |
| AS14806US | COMMONWEALTH-OF-PA - Commonwealth of PA - OA / Integrated Network Management Services | — | — | 0 |
| AS14876US | DDNET-1 - Dell, Inc. | — | — | 0 |
| AS14940US | LIGO-HANFORD-OBSERVATORY - LIGO Livingston Observatory | — | — | 0 |
| AS15018US | SEYFARTH-SHAW9 - Seyfarth Shaw LLP | — | — | 0 |
| AS15093US | NEWWAVECOMM2 - New Wave Communications | — | — | 0 |
| AS15271US | CENTENE-CORPORATION - Centene Corporation | — | — | 0 |
| AS16422US | NEWSKIES-NETWORKS - New Skies Satellites, Inc. | — | — | 0 |
| AS16457US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16473US | STATE-OF-TENNESSEE-NETTN - AT&T Enterprises, LLC | — | — | 0 |
| AS16494US | EME - En Masse Entertainment Inc. | — | — | 0 |
| AS16496US | COLORADOSTATEUNIV-SCONE - Colorado State University | — | — | 0 |
| AS16561US | ARIBANETWORK - SAP America Inc. | — | — | 0 |
| AS16635US | POMONA-02 - Pomona Consulting LLC | — | — | 0 |
| AS16670US | REG8-ESC - Region 8 Education Service Center | — | — | 0 |
| AS16672US | FEDBID - FedBid, Inc. | — | — | 0 |
| AS16709US | VIDALIA - Vidalia Labs LLC | — | — | 0 |
| AS16765US | BHN-16765-NA - Charter Communications, Inc | — | — | 0 |
| AS16779US | IBL-JC - Interactive Brokers LLC | — | — | 0 |
| AS16862US | ODESSA-COLLEGE-JUNIOR-COLLEGE-DISTRICT - Odessa College | — | — | 0 |
| AS16895US | SAN-BRUNO-CABLE - San Bruno Cable | — | — | 0 |
| AS16947US | MIMEOCOMINC - Mimeo.com, INC. | — | — | 0 |
| AS16974US | WESTSTAR-PHX-001 - WestStar Multimedia Entertainment, Inc. | — | — | 0 |
| AS16985US | LIGHTYEARAS - Fusion, LLC | — | — | 0 |
| AS17022US | SHELLBARK-ASN - Celadon Trucking Services, Inc. | — | — | 0 |
| AS17036US | AS-FIBERDASH - Fiberdash Networks LLC | — | — | 0 |