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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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 | 3,727 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,328 |
| — |
| — |
| 0 |
| AS20410US | DACD-MARINADELREY - Sony Pictures Technologies Inc. | — | — | 0 |
| AS20435US | ROSE-GROVE-CAPITAL-MANAGEMENT-LLC-ASN - Rose Grove Capital Management, LLC | — | — | 0 |
| AS20440US | BITTO-AS1 - BitTorrent, Inc. | — | — | 0 |
| AS21521US | EXELA-21521 - HOV Services, Inc. | — | — | 0 |
| AS21523US | EN-21523 - EllumNet LLC | — | — | 0 |
| AS21544US | THESYS-1 - Thesys Technologies, LLC | — | — | 0 |
| AS21598US | DUKE-ENERGY-ENERGY - Duke Energy Corporation | — | — | 0 |
| AS21601US | WEBSOFT-NET - Websoft Publishing Company | — | — | 0 |
| AS21675US | ESA-ASN-16800822 - Environmental Science Associates | — | — | 0 |
| AS21712US | ASN-SJHC - CommonSpirit Health | — | — | 0 |
| AS21733US | NGH-ASN-01 - Nashville General Hospital | — | — | 0 |
| AS21919US | LINX-USA - LINX USA Inc | — | — | 0 |
| AS21932US | AVISTAINC - AVISTA, INCORPORATED | — | — | 0 |
| AS21948US | BROCADE - Avago Technologies U.S. Inc. | — | — | 0 |
| AS21979US | ASN1 - Royce & Associates, LLC | — | — | 0 |
| AS22023US | MZ-PROD - AppLovin Corporation | — | — | 0 |
| AS22039US | SAM-ASN - SAM | — | — | 0 |
| AS22146US | LANDAM - Oak Point Partners | — | — | 0 |
| AS22183US | CISCO-ROS - CISCO SYSTEMS, INC. | — | — | 0 |
| AS22210US | X SOFTWORKS - X Softworks LLC | — | — | 0 |
| AS22239US | TRADINGTECH-CORP - Trading Technologies Intl, Inc. | — | — | 0 |
| AS22443US | DELTA-SOFTWARE-SUPPORT - Delta Software Support | — | — | 0 |
| AS22659US | KK8880 - Kloud Konnect | — | — | 0 |
| AS22758US | SAPIENT-DCO - Sapient Corporation | — | — | 0 |
| AS22777US | GIBNEY-ANTHONY-FLAHERTY - Gibney, Anthony & Flaherty, LLP. | — | — | 0 |
| AS22835US | BDLAWBGP - Beveridge & Diamond, P.C. | — | — | 0 |
| AS22849US | CINGULAR-AW - AT&T Services, Inc. | — | — | 0 |
| AS22901US | ATL-OFFICE - Noble Systems Corporation | — | — | 0 |
| AS22929US | VC3 - VC3, Inc. | — | — | 0 |
| AS22986US | LT-ASN-001 - Loxia Technologies, Inc. | — | — | 0 |
| AS23148US | TERRENAP - Verizon Business | — | — | 0 |
| AS23151US | TERC-1 - TERC, INC. | — | — | 0 |
| AS23292US | MILLENIUM-DIGITAL - Wave Broadband | — | — | 0 |
| AS23340US | GALAXYGATE-EDGE - GALAXYGATE, LLC | — | — | 0 |
| AS23375US | TEMA-COMMUNICATIONS-01 - Tennessee Emergency Management Agency | — | — | 0 |
| AS23391US | OASIS-SALUDA - Breezeline | — | — | 0 |
| AS23446US | NSAI - NSA, LLC. | — | — | 0 |
| AS23450US | NSX - NDIT Solutions | — | — | 0 |
| AS23460US | CISCO-SECURITY-CONSULTING-DNET - CISCO SYSTEMS, INC. | — | — | 0 |
| AS25601US | FOWLERVILLE - FreedomNet | — | — | 0 |
| AS25756US | MS-SOC - Gen Digital Inc. | — | — | 0 |
| AS25865US | PINNA-86 - Pinnacle Telecom, LLC. | — | — | 0 |
| AS25874US | LS-1 - Liquidity Services Inc. | — | — | 0 |
| AS25900US | COFL-BGP-AS - City of Fort Lauderdale | — | — | 0 |
| AS25947US | PILOTAIRFREIGHT - Pilot Air Freight Corp | — | — | 0 |
| AS25986US | IEX-MARKET-3 - IEX Group, Inc. | — | — | 0 |