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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 |
| DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) |
| — |
| — |
| 0 |
| AS6078US | JERSEY - InterActive Network Services | — | — | 0 |
| AS6088US | BOX - The Black Box | — | — | 0 |
| AS6136US | NWRAINET - NW RAIN.net, Inc | — | — | 0 |
| AS6157US | SPRINTLINK-HOSTING - SPRINT, Business Serices Group | — | — | 0 |
| AS6161US | COMCAST-6161 - Comcast Cable Communications, LLC | — | — | 0 |
| AS6196US | INTERNET-SYSTEMS - Internet Systems, Inc. | — | — | 0 |
| AS6226US | CENTURYLINK-LEGACY-QWEST-PROJECT-LION2 - CenturyLink Communications, LLC | — | — | 0 |
| AS6297US | NETBLK-ORGANIC-2 - Organic, Inc | — | — | 0 |
| AS6382US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS6397US | LIBBY - Lincoln County Tech Group | — | — | 0 |
| AS6445US | SIEMENS-US - Siemens Corporation | — | — | 0 |
| AS6449US | SPRINT-ISP - Sprint Multimedia Internet Division | — | — | 0 |
| AS6451US | SFEFCU-AS - South Florida Educational Federal Credit Union | — | — | 0 |
| AS6478US | ATT-INTERNET3 - AT&T Enterprises, LLC | — | — | 0 |
| AS6499US | AFP - Augsburg Fortress Publishers | — | — | 0 |
| AS6511US | BKGV-ASN - StrataCom, Inc. | — | — | 0 |
| AS6546US | AGAIN-NET-1 - PEGLabs | — | — | 0 |
| AS6564US | CONSTANT - CONSTANT COMMUNICATIONS | — | — | 0 |
| AS6578US | AXXIS - AXXIS Corporation | — | — | 0 |
| AS6588US | IN-QUICK - Internet QuickLink Corporation | — | — | 0 |
| AS6636US | ARMIGERON - Armigeron Information Services, Inc. | — | — | 0 |
| AS6814US | GTT Communications Inc. | — | — | 0 |
| AS6917US | MULTEXSYS - Multex Systems, Inc. | — | — | 0 |
| AS6925US | DIGADV-AS - Digital Advantage Corporation | — | — | 0 |
| AS6929US | COSITE-ASN-1 - COSITE, INC. | — | — | 0 |
| AS6930US | GOLD-AS - FIRST VIRTUAL HOLDINGS INC. | — | — | 0 |
| AS6940US | COMSTREAM - Comstream | — | — | 0 |
| AS6941US | HEALTHEON - Healtheon Corp. | — | — | 0 |
| AS6959US | DTS-AFRICA - Diplomatic Telecommunications Services | — | — | 0 |
| AS7001US | METACLOUD-PUBLIC-1 - Metacloud LLC | — | — | 0 |
| AS7026US | IME-AS - Internet Maine | — | — | 0 |
| AS7071US | PENET-ASN - The Press-Enterprise Co. | — | — | 0 |
| AS7118US | GIS-7118 - Global Internet Services | — | — | 0 |
| AS7128US | SABRE-AS-3 - Sabre GLBL Inc. | — | — | 0 |
| AS7182US | CMGDI-EAST - CMG Direct Interactive | — | — | 0 |
| AS7204US | GIS - Galaxy Internet Services Inc. | — | — | 0 |
| AS7229US | GLOBAL-ONE-RESTON - Global One Communications L.L.C. | — | — | 0 |
| AS7261US | JDEDWARDS - J D EDWARDS & COMPANY | — | — | 0 |
| AS7264US | SBCC - Santa Barbara Community College District | — | — | 0 |
| AS7275US | WINGBERLIN - Wing Net | — | — | 0 |
| AS7278US | ACCRUE - Accrue Software, Inc. | — | — | 0 |
| AS7286US | PBI-NET-BLK2 - AT&T Enterprises, LLC | — | — | 0 |
| AS7326US | NUNET - Northwestern University | — | — | 0 |
| AS7392US | DELPHI-INTERNET-AS - Delphi Internet Services Corporation | — | — | 0 |
| AS7409US | CONFLUX-NET - Grand Designs, Ltd | — | — | 0 |
| AS7411US | WINTERSTORM - StormNet Communications | — | — | 0 |