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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| — |
| — |
| 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 |
| AS7464US | I-WAYNET - I-Way Networks, Inc. | — | — | 0 |
| AS7728US | GRILLO - Grillo Networking, Inc. | — | — | 0 |
| AS7751US | DANCRIS - Dancris Telecom L.L.C | — | — | 0 |
| AS7776US | CENTURYLINK-MEBT-7776 - CenturyLink Communications, LLC | — | — | 0 |
| AS7783US | EARTHSTATION - EarthStation Inter.net | — | — | 0 |
| AS7793US | JMX-AS - JMX | — | — | 0 |
| AS7824US | GWIS-AS0 - Gateway to Internet Services | — | — | 0 |
| AS7842US | WEBWORLD - WebWorld Inc | — | — | 0 |
| AS7874US | SHKOO - shkoo consulting | — | — | 0 |
| AS7959US | VICON - VICON NETWORKS | — | — | 0 |
| AS7964US | ARCFOUR - Arc Four | — | — | 0 |
| AS8019US | ORCALINK - Orca Networking Technologies | — | — | 0 |
| AS8022US | WTNET - World Trade Network, Inc. | — | — | 0 |
| AS8072US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | — | — | 0 |
| AS8088US | SRTNET - SRT ENTERPRISES | — | — | 0 |
| AS8128US | UOL-AS - UOL Publishing, Inc | — | — | 0 |
| AS8130US | INFICAD - Inficad Computing and Design, LLC. | — | — | 0 |
| AS8157US | INTERNETCONNECTUSA - Internet Connection USA | — | — | 0 |
| AS8166US | PRISMNET - PrismNet, Ltd. | — | — | 0 |
| AS8168US | RAVENET-DE - Ravenet Systems, Inc. | — | — | 0 |
| AS9217US | INFONET-AP - BT-Infonet | — | — | 0 |
| AS10251US | DIALI - Digital Internet Access Link, Inc. | — | — | 0 |
| AS10252US | DOTNETUNIFIEDNETWORK - Dot-Net, Ltd | — | — | 0 |
| AS10259US | BLUEMOON - Blue Moon Online System | — | — | 0 |
| AS10286US | LEGACY-TIESOFT-STLSMO-LEGACY - TIESoft Internet Marketing Ltd. | — | — | 0 |
| AS10295US | COMPUTERDOTNET - Computer.Net LLC | — | — | 0 |
| AS10303US | AS-PRIORI - Priori Networks | — | — | 0 |
| AS10319US | ADVANTANET - Advanta Corporate Technology | — | — | 0 |
| AS10323US | PLANET - Planet Systems Network, Inc. | — | — | 0 |
| AS10333US | DIGITALINSIGHT - Digital Insight Corporation | — | — | 0 |
| AS10338US | COBITE - Communications Billing Technologies | — | — | 0 |
| AS10375US | WELLSFARGO-10372-10376 - Wells Fargo Bank, N.A. | — | — | 0 |
| AS10380US | NETXS - Net XS Communications | — | — | 0 |
| AS10447US | SKYLINKUS-AS1 - Skylink Networks, Inc. | — | — | 0 |
| AS10471US | THOMSON-REUTERS - Thomson Information Services | — | — | 0 |