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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,666 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 234 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,491 |
| — |
| — |
| 0 |
| AS32950US | TOWNESTELECOMMUNICATIONS - Townes Telecommunications Services Corporation | — | — | 0 |
| AS32409US | VGRS-AC23 - VeriSign Global Registry Services | — | — | 0 |
| AS31953US | HUL-44-31953 - Halajot USA LLC | — | — | 0 |
| AS30010US | DECIX-NYC-MAPS - DE-CIX North America Inc. | — | — | 0 |
| AS63375US | FULLSPANSOLUTIONS-AS02 - Full Span Solutions LLC | — | — | 0 |
| AS63323US | CAPTIONCALL - CaptionCall | — | — | 0 |
| AS63158US | LAHARPE - La Harpe Communications INC. | — | — | 0 |
| AS27471US | SYMN - Avago Technologies U.S. Inc. | — | — | 0 |
| AS62554US | BSTONE-2K12 - BLACKSTONE CALLING CARD, INC. | — | — | 0 |
| AS62505US | AS-PHX - Noble Systems Corporation | — | — | 0 |
| AS54908US | DEVONCORP2 - Devon Energy Corporation | — | — | 0 |
| AS62719US | AS-PCNET-ORL - Corserva, Inc. | — | — | 0 |
| AS214092US | Zachary-Ezetta Zachary Ezetta | — | — | 0 |
| AS212789US | BullCloud-Network-Technology BullCloud Network Technology Ltd | — | — | 0 |
| AS132128US | CTL-AS-AP - CommScope Technologies LLC | — | — | 0 |
| AS211420US | kryptoslogic Kryptos Logic LLC | — | — | 0 |
| AS147025US | ISC-AS-AP - Internet Systems Consortium | — | — | 0 |
| AS146951US | ISC-AS-AP - ISC F-Root Kolkata | — | — | 0 |
| AS47103US | ZNL-15-47103 - GIGAPATH LLC | — | — | 0 |
| AS54US | DNIC-AS-00054 - Headquarters, USAISC | — | — | 0 |
| AS46148US | MONOCOUNTYCA-BRIDGEPORT - County of Mono | — | — | 0 |
| AS401176US | OVZON - Ovzon | — | — | 0 |
| AS400864US | TNX-DFW1 - Telnetrix, LLC | — | — | 0 |
| AS399015US | COR-FO - City of Rowlett | — | — | 0 |
| AS400244US | WS-01 - WORLD SINGLES, LLC | — | — | 0 |
| AS401096US | AS - EchoSphere Tech LLC | — | — | 0 |
| AS36670US | PEAK10-FLL - Flexential Corp. | — | — | 0 |
| AS36729US | BC - Brash Concepts, Inc. | — | — | 0 |
| AS36449US | INSIGHT-AS - Insight Direct USA, Inc. | — | — | 0 |
| AS36387US | BBIX-USA-MI - BBIX USA, INC. | — | — | 0 |
| AS36045US | ITY-AS-36045 - City of Kansas City Missouri | — | — | 0 |
| AS36611US | VISTANETINC - VISTANET INC. | — | — | 0 |
| AS36386US | ADVANCED-TRACKING-TECHNOLOGIES-INC - Advanced Tracking Technologies, Inc. | — | — | 0 |
| AS58722US | CINL-58722 - SoundStack Technologies, LLC | — | — | 0 |
| AS40883US | AVALARA-SALES-TAX - Avalara, Inc | — | — | 0 |
| AS43308US | Michael-Kehoe Michael Kehoe | — | — | 0 |
| AS36790US | BERWICK - Breezeline | — | — | 0 |
| AS40290US | COMTECHNOLOGIES - Communications Technologies, Inc. | — | — | 0 |
| AS40103US | MAJESTIC-STEEL-USA - Majestic Steel USA, Inc. | — | — | 0 |
| AS400569US | NTS-ASN-FREE - Vexus Fiber | — | — | 0 |
| AS30461US | QNACO-AS004 - QnA Consulting | — | — | 0 |
| AS30431US | AS-PREFIXX - Prefixx, Inc. | — | — | 0 |
| AS30195US | CHARLESBANK - Charlesbank Capital Partners | — | — | 0 |
| AS30386US | ACI-WORLDWIDE - ACI Worldwide, Inc. | — | — | 0 |
| AS29800US | AS-NJ1-MD - Guggenheim Services LLC | — | — | 0 |
| AS29780US | WOW-INTERNET-CLV - WideOpenWest Finance LLC | — | — | 0 |