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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 | 21,253 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,249 |
| 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 | 3,722 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,964 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,301 |
| — |
| — |
| 0 |
| AS6293US | ESKIMO - Eskimo North, Inc. | — | — | 0 |
| AS6299US | TELALINK - Cogent Communications, LLC | — | — | 0 |
| AS6313US | PROMETHEUS - Prometheus Information Corp. | — | — | 0 |
| AS6322US | PCI FIBER ASN-2 - PCI Fiber, LLC | — | — | 0 |
| AS6346US | VUI - Valhalla Unlimited, Inc | — | — | 0 |
| AS6348US | BETTYPLATFORMS - Prodigy Services | — | — | 0 |
| AS6369US | NETRUNNER-6369 - Netrunner Inc | — | — | 0 |
| AS6409US | RESEARCHMAG - Research Holdings, LTD. | — | — | 0 |
| AS6426US | NETCOAST - NETCOAST Communications, Inc. | — | — | 0 |
| AS6440US | EMF-AS - emf.net | — | — | 0 |
| AS6444US | SBSIB - Siemens Business Systems Intranet Backbone | — | — | 0 |
| AS6474US | FLASHNET-AS - SBC IP Communications, Inc. | — | — | 0 |
| AS6496US | COGENT-6496 - Cogent Communications, LLC | — | — | 0 |
| AS6497US | ACQUION - ACQUION, Inc. | — | — | 0 |
| AS6525US | INFO-HIGHWAY - Info-Highway International, Inc | — | — | 0 |
| AS6558US | SKYGATE - DIVERSIFIED COMMUNICATIONS INC | — | — | 0 |
| AS6571US | EGIX-CHAMPAIGN-AS-6571 - Altafiber | — | — | 0 |
| AS6655US | GTE-IM - GTE Interactive Media | — | — | 0 |
| AS6935US | IDG-ISG - IDG Interactive Services Group | — | — | 0 |
| AS6972US | INETWEST - Santa Cruz Community Internet | — | — | 0 |
| AS6978US | SECURITIES-AS - Internet Securities Incorporated | — | — | 0 |
| AS7008US | TIBA-AS - The Internet Business Association | — | — | 0 |
| AS7022US | SBTAS - SBT Accounting Systems | — | — | 0 |
| AS7025US | AMLIBS - Ameritech Library Services | — | — | 0 |
| AS7028US | IBS - International Business Software, Inc. | — | — | 0 |
| AS7047US | TDSYS - Trident Data Sytems | — | — | 0 |
| AS7058US | VIASAT-1 - ViaSat,Inc. | — | — | 0 |
| AS7093US | REM-AS - Henry Kilmer, Sole Proprietor | — | — | 0 |
| AS7094US | WA-IXA - Washington Internet Services | — | — | 0 |
| AS7115US | INDEPTH-DATA-AS - Indepth Data Inc. | — | — | 0 |
| AS7134US | OTBB - Nothing But Net, Inc. | — | — | 0 |
| AS7140US | VERO-NETWORKS-AS7140 - Vero Broadband | — | — | 0 |
| AS7145US | MENO - Meno Inc. | — | — | 0 |
| AS7196US | TRINET-AS - TriNet Services | — | — | 0 |
| AS7218US | DUNBAR - Dunbar Consulting | — | — | 0 |
| AS7241US | INFINEX-SF - Infinex Telelcom, Inc. | — | — | 0 |
| AS7294US | SBIS-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS7339US | SIEMENS-CREDIT - Siemens Credit Corp | — | — | 0 |
| AS7344US | VIVIDNET - Vivid Internet Production Company | — | — | 0 |
| AS7354US | DEDIOUTLET-NETWORK-PHX - DediOutlet, LLC | — | — | 0 |
| AS7364US | GROOVE - Reality Enhancements | — | — | 0 |
| AS7368US | AMERICAN-MESSAGING-DR - American Messaging Services L.L.C. | — | — | 0 |
| AS7378US | CONNETIX - Connetix, Inc. | — | — | 0 |
| AS7424US | SILVERSY-INC-USANET - USA.Net | — | — | 0 |
| AS7432US | EGENIUS - Evil Geniuses for a Better Tomorrow | — | — | 0 |
| AS7436US | IRON - Ironlight Digital | — | — | 0 |