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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS395343US | AR-CORP01 - Amazon Robotics LLC | — | — | 0 |
| AS395329US | KBRANJ - KBRA | — | — | 0 |
| AS27104US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS26458US | CENTRAL-BL - Level 3 Parent, LLC | — | — | 0 |
| AS26331US | ZENFOLIO - Zenfolio, Inc. | — | — | 0 |
| AS25911US | US-REPSOLSERVICESCOMPANY-EX-TLM - Repsol Services Company | — | — | 0 |
| AS29881US | TPAIX - WideOpenWest Finance LLC | — | — | 0 |
| AS23345US | WEBCORE - EvolveIP, LLC | — | — | 0 |
| AS23343US | TRNS - Transbeam Inc. | — | — | 0 |
| AS29760US | UNITI-M2 - Uniti Fiber Holdings Inc. | — | — | 0 |
| AS25658US | EQUINIX-CX-SV - Equinix, Inc. | — | — | 0 |
| AS26983US | HPINC - HP Inc. | — | — | 0 |
| AS27318US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS20250US | RMWC-NET - Randolph College | — | — | 0 |
| AS27141US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS6465US | PAXIO - Paxio Inc. | — | — | 0 |
| AS6448US | QAD - QAD, Inc. | — | — | 0 |
| AS6334US | ASN-TSG - Sabre GLBL Inc. | — | — | 0 |
| AS27619US | AS-CUSTOMCRITICAL - FedEx Custom Critical | — | — | 0 |
| AS6061US | OREILLYMEDIA-AS2 - O'Reilly Media, Inc. | — | — | 0 |
| AS6045US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6260US | SIX2SIXO-NETWORKS - MOD Mission Critical, LLC | — | — | 0 |
| AS6013US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS7416US | UCM - UNICOM | — | — | 0 |
| AS30480US | ONENET-OKCIX-AS-1 - OneNet | — | — | 0 |
| AS16961US | HIPCS-DALLAS-SERVER-OFFICE - AT&T Enterprises, LLC | — | — | 0 |
| AS17027US | PEAK10ATL - Flexential Corp. | — | — | 0 |
| AS19604US | IBM-RALEIGH-CL - IBM | — | — | 0 |
| AS19587US | H2-CREDIT-MANAGEMENT - H/2 Credit Manager GP LLC | — | — | 0 |
| AS19466US | EZ-PING-ASN - EZ Ping Networks Inc | — | — | 0 |
| AS18597US | RVBD - RIVERBED TECHNOLOGY, INC. | — | — | 0 |
| AS19007US | COG-INET-01 - City of Goodyear | — | — | 0 |
| AS19003US | IHSENERGY-CALGARY - IHS Global, Inc. | — | — | 0 |
| AS18915US | MONKEY-US-01 - Surveymonkey Inc. | — | — | 0 |
| AS18990US | AIRBAND-DALLAS - Airband Communications, Inc | — | — | 0 |
| AS10960US | CENTURYLINK-QC-MOE-TUCSON - CenturyLink Communications, LLC | — | — | 0 |
| AS30288US | ANRO-INC - ANRO, Inc. | — | — | 0 |
| AS30122US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30585US | HPINC - HP Inc. | — | — | 0 |
| AS29965US | CHARTER-29965-NA - Charter Communications LLC | — | — | 0 |
| AS30204US | RENEGADE-TECH-01 - Renegade Technologies | — | — | 0 |
| AS32499US | SHEKELS - Shekels LLC | — | — | 0 |
| AS32748US | STEADFAST - Steadfast | — | — | 0 |
| AS32116US | YAHOO-4 - Yahoo Holdings Inc. | — | — | 0 |
| AS32084US | GOS-MIA1 - Global Outsource Services LLC | — | — | 0 |
| AS31885US | INFINITYSOFTWARE - Infinity Software Development | — | — | 0 |