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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 24,512 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,235 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,906 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.7M | 4,281 |
| — |
| — |
| 0 |
| AS36381US | LAMESANETWORK - PICS.NET | — | — | 0 |
| AS36485US | PADTECH - PAD Technologies, Inc. | — | — | 0 |
| AS36489US | NETSOLUS-NETWORKS - IP Pathways, LLC | — | — | 0 |
| AS36524US | MOLINA - Molina Healthcare Inc. | — | — | 0 |
| AS36633US | BSPD-MINT - Brightspeed | — | — | 0 |
| AS36685US | DATACANOPY - DMS | — | — | 0 |
| AS36696US | POGOZONE-SEA - PogoZone | — | — | 0 |
| AS36700US | WBS - Tek Channel Consulting LLC | — | — | 0 |
| AS36800US | PROCTORFINANCIAL - Proctor Loan Protector | — | — | 0 |
| AS36836US | UNITED-STATES-NAVAL-INSTITUTE - United States Naval Institute | — | — | 0 |
| AS36837US | ASN-TELETRAC - Teletrac, Inc. | — | — | 0 |
| AS39955US | CHARTER-39955-NA - Charter Communications LLC | — | — | 0 |
| AS40093US | AS40093 - JMC Capital, LLC | — | — | 0 |
| AS40134US | KITTELSON-DIGIWEST-ORLANDO - KITTELSON AND ASSOCIATES, INC. | — | — | 0 |
| AS40145US | BLD-INT - Builders Insurance Group, Inc. | — | — | 0 |
| AS40174US | COMMUNITY-INTERNET-PROVIDERS - Point Broadband Fiber Holding, LLC | — | — | 0 |
| AS40250US | UCHEALTH-01 - UCHealth | — | — | 0 |
| AS40256US | RL-NET1-DFW - RingLogix LLC | — | — | 0 |
| AS40432US | CAMBRIDGE-NA - Cambridge Integrated Services Group, Inc. | — | — | 0 |
| AS40445US | RISE-UT-LASTMILE-AS40045 - JAB Wireless, INC. | — | — | 0 |
| AS40570US | VISTAPRINT - Vista Print USA, Incorporated | — | — | 0 |
| AS40590US | AS40590 - CISCO SYSTEMS, INC. | — | — | 0 |
| AS40610US | DTS-ASN40610 - dts.edu | — | — | 0 |
| AS40637US | MAILROUTE - Thomas A. Johnson Group, Inc. | — | — | 0 |
| AS40697US | NEGU-01 - NEGU | — | — | 0 |
| AS40753US | KINGS-COLLEGE-AS - King's College | — | — | 0 |
| AS40775US | TICALI-OPERATIONS-01 - TICALI Corporation | — | — | 0 |
| AS40822US | PTS-108 - Persistent Telecom Solutions Inc. | — | — | 0 |
| AS40928US | TAM-NYC - THIRD AVENUE MANAGEMENT LLC | — | — | 0 |
| AS43014US | Kirkland-AS Kirkland & Ellis International, LLP | — | — | 0 |
| AS45422US | SFDC-AS-AP - SalesForce.com, Inc. | — | — | 0 |
| AS46132US | HITACHI-ENRGY - Hitachi Energy USA Inc. | — | — | 0 |
| AS46163US | MOODYS - Moody's Corp. | — | — | 0 |
| AS46310US | TSRI-FL-AS - The Scripps Research Institute | — | — | 0 |
| AS46343US | ALKIRA-PUBLIC-ASN - Alkira Inc | — | — | 0 |
| AS46395US | WEEDEN-GRN - Piper Sandler Companies | — | — | 0 |
| AS46509US | INTERACTIVE-BROKERS-GOP - Interactive Brokers LLC | — | — | 0 |
| AS46615US | EPIC-1-46615 - EPIC Consolidated Operations, LLC | — | — | 0 |
| AS46660US | WINSONIC - WinSonic Digital Cable Systems Network, Ltd. | — | — | 0 |
| AS46715US | ENERGYNET-COM - EnergyNet.com, Inc. | — | — | 0 |
| AS46823US | NEUSTAR-DENVER - NeuStar, Inc. | — | — | 0 |
| AS46909US | PHILADELPHIAFCU - Philadelphia Federal Credit Union | — | — | 0 |
| AS46929US | GABBIT-EAST-ALB - Gabbit, LLC | — | — | 0 |
| AS46981US | OPAQ-2 - OPAQ Networks, Inc. | — | — | 0 |
| AS47008US | SKYLO-TECH - Skylo Technologies Inc. | — | — | 0 |
| AS47012US | TASER-VIRTUAL-SYSTEMS - Taser International, Inc. | — | — | 0 |