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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| NUTMEG-STATE-FINANCIAL-CREDIT-UNION - Nutmeg State Financial Credit Union |
| — |
| — |
| 0 |
| AS7126US | UNITEDMEDIA - United Media | — | — | 0 |
| AS31974US | RIML-CORP-AS-2 - BlackBerry Corporation | — | — | 0 |
| AS26435US | MERCHANT-SOLUTIONS-26435 - Worldpay, LLC | — | — | 0 |
| AS30701US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS26635US | MCCC-10152002-NJEDGE - Mercer County Community College | — | — | 0 |
| AS26586US | COMENTUM - Comentum Corp. | — | — | 0 |
| AS26212US | DRF-IXNET-HI - DR Fortress, LLC | — | — | 0 |
| AS26900US | LPS-6 - Black Knight IP Holding Company, LLC | — | — | 0 |
| AS26047US | MGMEAD - Meadgroup, Inc. | — | — | 0 |
| AS21829US | AS21829 - Uvation Industries, LLC | — | — | 0 |
| AS13776US | QX-NET-ASN-1 - QX.Net | — | — | 0 |
| AS15109US | TRAPP-ONLINE-02 - Trapp Online, LLC | — | — | 0 |
| AS16421US | NRT-HAWAII - Realogy Group LLC | — | — | 0 |
| AS21827US | CALIX-TX-DAL - Calix, Inc. | — | — | 0 |
| AS398630US | CHARTER-BGP-INFRASTRUCTURE - Charter Communications LLC | — | — | 0 |
| AS14856US | AS-VUDU - VUDU, Inc. | — | — | 0 |
| AS14774US | WILLIAM-PENN-FOUNDATION - William Penn Foundation | — | — | 0 |
| AS21560US | INFINITE-CAMPUS-DC3 - Infinite Campus, Incorporated | — | — | 0 |
| AS21587US | SAI-AS - Salomon Analytics Inc | — | — | 0 |
| AS13670US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS20140US | EHI-CORP-MV-AS - eHealthInsurance Services Inc. | — | — | 0 |
| AS27626US | AS-JOYTEL - Joytel | — | — | 0 |
| AS22767US | AS22767 - National Aeronautics and Space Administration | — | — | 0 |
| AS22307US | VINS-AS-7 - Flexential Colorado Corp. | — | — | 0 |
| AS22264US | CONTE-25-BLA - Contegix | — | — | 0 |
| AS18771US | 3DS-BB01 - 3ds Communications LLC | — | — | 0 |
| AS21890US | RISE-OK-DURCM-AS21890 - JAB Wireless, INC. | — | — | 0 |
| AS18510US | MDP-ASN3551 - Midwest Data Processing, Inc. | — | — | 0 |
| AS16768US | PCS-BGP - Pacific Crest Securities Inc. | — | — | 0 |
| AS8177US | QADAS - Qadas, Inc. | — | — | 0 |
| AS8127US | CONNECTEXPRESS - ConnectExpress | — | — | 0 |
| AS10266US | 1PATH-AS - 1Path | — | — | 0 |
| AS8074US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | — | — | 0 |
| AS8061US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS16529US | US-CLOUD-TX - SoftCom America Inc. | — | — | 0 |
| AS17075US | PARA-1 - Blackhawk Network, Inc. | — | — | 0 |
| AS16829US | TESSCO-MD - Tessco Technologies | — | — | 0 |
| AS204012US | JEAO Justin O'Reilly | — | — | 0 |
| AS19279US | VISTAAR - VISTAAR | — | — | 0 |
| AS19057US | KYN-GTS - Kyndryl | — | — | 0 |
| AS19143US | FWS-NET - U.S. Fish and Wildlife Service | — | — | 0 |
| AS19134US | FTBONLINE - First Horizon National Corporation | — | — | 0 |
| AS15217US | HPINC - HP Inc. | — | — | 0 |
| AS18677US | COLUMBUS-NETWORKS - Columbus Networks USA, Inc. | — | — | 0 |
| AS14357US | KCIT-I-NET - King County IT/I-NET | — | — | 0 |
| AS14154US | FAIRPOINT-UNITE - Fidium | — | — | 0 |