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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 |
| AS7218US | DUNBAR - Dunbar Consulting | — | — | 0 |
| AS7241US | INFINEX-SF - Infinex Telelcom, Inc. | — | — | 0 |
| AS7294US | SBIS-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS7339US | SIEMENS-CREDIT - Siemens Credit Corp | — | — | 0 |
| AS7344US | VIVIDNET - Vivid Internet Production Company | — | — | 0 |
| AS7354US | DEDIOUTLET-NETWORK-PHX - DediOutlet, LLC | — | — | 0 |
| AS7364US | GROOVE - Reality Enhancements | — | — | 0 |
| AS7368US | AMERICAN-MESSAGING-DR - American Messaging Services L.L.C. | — | — | 0 |
| AS7378US | CONNETIX - Connetix, Inc. | — | — | 0 |
| AS7424US | SILVERSY-INC-USANET - USA.Net | — | — | 0 |
| AS7432US | EGENIUS - Evil Geniuses for a Better Tomorrow | — | — | 0 |
| AS7436US | IRON - Ironlight Digital | — | — | 0 |
| AS7759US | OSTER - Oster Communications, Inc. | — | — | 0 |
| AS7770US | TRITON - Triton Technologies, Inc. | — | — | 0 |
| AS7787US | FAN-NETWORK - Fan Network Consulting | — | — | 0 |
| AS7830US | COMMWERKS - Sudjam, LLC | — | — | 0 |
| AS7833US | EXTRANET-01 - Extra.Net | — | — | 0 |
| AS7886US | EMPIRICAL-AS - Empirical Media Corporation | — | — | 0 |
| AS7900US | HOOSIER - Hoosier Online Systems Corp. | — | — | 0 |
| AS7924US | ADVANCEDONLINE - Advanced Online Services Inc. | — | — | 0 |
| AS7945US | CYBERG8T - Cyberg8t Internet Services, Inc. | — | — | 0 |
| AS7976US | SEDONA-AS - Wolen Computer Services | — | — | 0 |
| AS7977US | EMCCORP - Dell, Inc. | — | — | 0 |
| AS8009US | AEGON-USA - Money Services, Inc. | — | — | 0 |
| AS8073US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | — | — | 0 |
| AS8078US | I-2 - Information Interclear | — | — | 0 |
| AS8097US | OPENIX-RC - P Foundation | — | — | 0 |
| AS8101US | RTCI-AS - Research Triangle Consultants, Inc. | — | — | 0 |
| AS8115US | VRIS-8112-8115 - Verizon Business | — | — | 0 |
| AS8169US | ACCESSINDY - Ameritech Access Indiana | — | — | 0 |
| AS8174US | MHPCC-ASNET2 - Maui High Performance Computing Center | — | — | 0 |
| AS8185US | THAWEB - Terry Hines And Associates | — | — | 0 |
| AS8347US | Callcentric Wholesale Inc | — | — | 0 |
| AS8379US | CYBERNET-AG GTT Communications Inc. | — | — | 0 |
| AS10281US | DIALIP-E-NE - GLOBAL ONE | — | — | 0 |
| AS10289US | WEBNETWORKS - WebNetworks International, Inc. | — | — | 0 |
| AS10345US | INCONNECT - Internet Connect, Inc. | — | — | 0 |
| AS10408US | SPECTRUME - Spectrum Enterprises, Inc. | — | — | 0 |
| AS10413US | GLOBALLY - Global Net | — | — | 0 |
| AS10437US | KYRON-10437 - Kentucky Regional Optical Network (KY-RON) | — | — | 0 |
| AS10459US | WANSASN - Web America Networks | — | — | 0 |
| AS10467US | NEWMEDIA - New Media Laboratories | — | — | 0 |
| AS10498US | IWAVE-ASN - I-Wave Corp. | — | — | 0 |
| AS10582US | MONDONET-USA-AS - TMI-USA | — | — | 0 |
| AS10591US | IONSNET - Interact Communications | — | — | 0 |
| AS10639US | ALPHABLOX - ALPHABLOX CORPORATION | — | — | 0 |