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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) | 227.7M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| — |
| — |
| 0 |
| AS6323US | ENEWS - The Electronic Newstand | — | — | 0 |
| AS6381US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS6384US | BELLSOUTH-NET-BLK - AT&T Enterprises, LLC | — | — | 0 |
| AS6438US | OMINUX-NETWORK - Outwest Network Services Inc. | — | — | 0 |
| AS6452US | WESTWORLD - Westworld Communications | — | — | 0 |
| AS6467US | CENTURYLINK-LEGACY-TW-XSPEDIUS-ESPIRECOMM - Level 3 Parent, LLC | — | — | 0 |
| AS6470US | WEB2000-ASN - Web2000, Inc. | — | — | 0 |
| AS6502US | INTEGRA-ELIX - Allstream Business US, LLC | — | — | 0 |
| AS6514US | SRMC - Scientific Research Management Corporation | — | — | 0 |
| AS6520US | NOLA-INXP-1 - InterCommerce Corporation | — | — | 0 |
| AS6521US | LUMPN-6521 - Lumpnet | — | — | 0 |
| AS6548US | GLOB - Glob, Inc. | — | — | 0 |
| AS6581US | PATHLINK - Pathlink Technology | — | — | 0 |
| AS6606US | TYLERTECH-6606 - Tyler Technologies, Inc. | — | — | 0 |
| AS6635US | NARROWLINE207 - NarrowLine | — | — | 0 |
| AS6638US | USIC-Z - US Internet Corp | — | — | 0 |
| AS6647US | NTPPOOL-ANYCAST - Solfo Inc. | — | — | 0 |
| AS6934US | ATT-COLUMBUS-AS - AT & T | — | — | 0 |
| AS6961US | DTS-EAST-ASIAN - Diplomatic Telecommunications Services | — | — | 0 |
| AS6982US | DRAGON - A2 Hosting, Inc. | — | — | 0 |
| AS7051US | ASN-SNS - Secure Network Systems | — | — | 0 |
| AS7076US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS7079US | OPENPIPES-CHICAGO - openpipes | — | — | 0 |
| AS7082US | CARIN-AS-BLOCK - ISI | — | — | 0 |
| AS7099US | NORTELRCH - NORTEL | — | — | 0 |
| AS7114US | USFG-AS - USF&G | — | — | 0 |
| AS7144US | VOYAGERONLINE - Voyager Online, LLC | — | — | 0 |
| AS7169US | WALRUS - Walrus Internet | — | — | 0 |
| AS7237US | LFCI - Levine, Frayer & Carlson, Inc. | — | — | 0 |
| AS7245US | TECLINK-AS - TECLink Inc. | — | — | 0 |
| AS7263US | GOFASTNET - gofast.net Inc. | — | — | 0 |
| AS7266US | INFOSEEK - InfoSeek | — | — | 0 |
| AS7282US | DXNET-AS - DXNET | — | — | 0 |
| AS7369US | VERO-NETWORKS-AS7369 - Vero Broadband | — | — | 0 |
| AS7370US | CDSINC - Commercial Data Systems | — | — | 0 |
| AS7379US | VIEWCALL - Viewcall America | — | — | 0 |
| AS7395US | INTEGRATELECOM - Allstream Business US, LLC | — | — | 0 |
| AS7397US | DIGILINK-AS-MDR - Digilink | — | — | 0 |
| AS7404US | ACS - Ameritech Cellular | — | — | 0 |
| AS7447US | ONLINEINTERACTIVE - Online Interactive | — | — | 0 |
| AS7745US | BIGSKY-AS - Big Sky Net | — | — | 0 |
| AS7760US | STAC - Stac, Inc. | — | — | 0 |
| AS7778US | PARACEL - Paracel Online Systems | — | — | 0 |
| AS7785US | ALEXUS - Alexus | — | — | 0 |
| AS7804US | SOFTWOOD - Softwood | — | — | 0 |
| AS7822US | AVICENNA - Avicenna Systems Corporation | — | — | 0 |