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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. | 218M | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS6578US | AXXIS - AXXIS Corporation | — | — | 0 |
| AS6588US | IN-QUICK - Internet QuickLink Corporation | — | — | 0 |
| AS6636US | ARMIGERON - Armigeron Information Services, Inc. | — | — | 0 |
| AS6814US | GTT Communications Inc. | — | — | 0 |
| AS6917US | MULTEXSYS - Multex Systems, Inc. | — | — | 0 |
| AS6925US | DIGADV-AS - Digital Advantage Corporation | — | — | 0 |
| AS6929US | COSITE-ASN-1 - COSITE, INC. | — | — | 0 |
| AS6930US | GOLD-AS - FIRST VIRTUAL HOLDINGS INC. | — | — | 0 |
| AS6940US | COMSTREAM - Comstream | — | — | 0 |
| AS6941US | HEALTHEON - Healtheon Corp. | — | — | 0 |
| AS6959US | DTS-AFRICA - Diplomatic Telecommunications Services | — | — | 0 |
| AS7001US | METACLOUD-PUBLIC-1 - Metacloud LLC | — | — | 0 |
| AS7026US | IME-AS - Internet Maine | — | — | 0 |
| AS7071US | PENET-ASN - The Press-Enterprise Co. | — | — | 0 |
| AS7118US | GIS-7118 - Global Internet Services | — | — | 0 |
| AS7128US | SABRE-AS-3 - Sabre GLBL Inc. | — | — | 0 |
| AS7182US | CMGDI-EAST - CMG Direct Interactive | — | — | 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 |