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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 24,635 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,306 |
| 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.
32,220 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,003 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| 256 |
| — |
| 1 |
| AS7136US | LATINO - Latino Communications Corporation | 256 | — | 1 |
| AS32547US | NYPR-1 - New York Public Radio | 256 | — | 1 |
| AS395583US | BETHSS - M&D Wholesale Distributors Inc. | 256 | — | 1 |
| AS26911US | LITFIBER - LitFiber LLC | 256 | — | 1 |
| AS46859US | MBT-COM - MBTC | 256 | — | 1 |
| AS3751US | PHONAK-LLC - Phonak, LLC | 256 | — | 1 |
| AS53918US | HHRL-ASN - Host Hotels and Resorts, L.P. | 256 | — | 1 |
| AS3066US | RS-AS - Robert E. Seastrom | 256 | — | 1 |
| AS398462US | VPHARM-UK - Vertex Pharmaceuticals | 256 | — | 1 |
| AS401546US | HCDL-ASHBURN-DATA-CENTER - H5 Data Centers | 256 | — | 1 |
| AS402981US | CODE3HOSTING - Code | 256 | — | 1 |
| AS46365US | CYANSYN - CYANSYN CO. | 256 | 4.1K | 2 |
| AS22597US | SKALA-NETWORKS - SKALA NETWORKS LLC | 256 | — | 1 |
| AS397878US | DDI-HQ-ASN - DEVELOPMENT DIMENSIONS INTERNATIONAL INC | 256 | — | 1 |
| AS40330US | LSNB - Lone Star National Bank | 256 | — | 1 |
| AS397402US | AH-PEER1 - Atrius Health, Inc. | 256 | — | 1 |
| AS399340US | IHMEAGLE-EAGLEWIRELESS - Eagle Wireless | 256 | — | 1 |
| AS1652US | MIDFLORIDA-AS - MIDFLORIDA Federal Credit Union | 256 | — | 1 |
| AS19191US | SPRINGNET1-EOS - JAB Wireless, INC. | 256 | — | 1 |
| AS11903US | LINCOLNSHIRE-MANAGEMENT - Lincolnshire Management, Inc. | 256 | — | 1 |
| AS54124US | TRAVELINC-NSC - TRAVEL INCORPORATED | 256 | — | 1 |
| AS6216US | IV-AS - Intellectual Ventures Management, LLC | 256 | — | 1 |
| AS398081US | AS-GIGAPOP - GigaPop Internet Services LLC | 256 | 65.5K | 2 |
| AS393350US | TELTRUST - Teltrust Corp. | 256 | — | 1 |
| AS31755US | VISKASE-COMPANIES-INC-ASN - Viskase Companies, Inc. | 256 | — | 1 |
| AS53287US | 5QCLOUD - 5Q Cloud | 256 | — | 1 |
| AS22669US | CNANHQ-01 - CNA National Warranty Corporation | 256 | — | 1 |
| AS40678US | NCFCU-SB-ASN01 - NorthCountry Federal Credit Union | 256 | — | 1 |
| AS25944US | OCP-AS-01 - Society of Young Enterprise Engineers Ltd. | 256 | 16 | 2 |
| AS25744US | LOGIC-SPRINGS-TECHNOLOGIES - Logic Springs Technologies | 256 | — | 1 |
| AS393409US | HELLOSPOKE - Voitress | 256 | — | 1 |
| AS11120US | ISYS-LLC - WidePoint Integrated Solutions Corp. | 256 | — | 1 |
| AS396446US | KESTRAFINANCIAL - KESTRA FINANCIAL, INC | 256 | — | 1 |
| AS401832US | RULE YOUR OWN GAME INC - Rule Your Own Game Inc. | 256 | 2 | 3 |
| AS401186US | OPTYXBROADBAND-FL - Optyx Broadband Inc. | 256 | — | 1 |
| AS22862US | CLINTON-CITY-SCHOOLS - Clinton City Schools | 256 | — | 1 |
| AS32324US | CITYCERRITOS - CITY OF CERRITOS | 256 | — | 1 |
| AS22880US | PRIMED-HPMG - PRIMED MANAGEMENT CONSULTING INC | 256 | — | 1 |
| AS397542US | ACCDPEC - Austin Convention Center Department | 256 | — | 1 |
| AS33196US | LJA-ENG-01 - LJA Engineering, Inc. | 256 | — | 1 |
| AS400358US | TOTALDATALOSS - TOTALDATALOSS LLC | 256 | 256 | 2 |
| AS26643US | ACE-002 - Ace Data Centers II, L.L.C. | 256 | — | 1 |
| AS199594US | PMIX-AS Poema eXchange LLC | 256 | 256 | 2 |
| AS40744US | MC-CDC-01 - Coors Distributing Company | 256 | — | 1 |
| AS402597US | DBH-CORP - Blick | 256 | — | 1 |
| AS397393US | REHNAS01 - A W Rehn & Associates Inc. | 256 | — | 1 |