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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,245 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 398 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,708 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,952 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS10637US | TROYSAT - Troy Systems | — | — | 0 |
| AS10642US | POWERNET - DHM Information Management, Inc | — | — | 0 |
| AS10648US | PACIFICBROK - Pacific Brokerage Services | — | — | 0 |
| AS10652US | NETSIDE - NetSide Corporation | — | — | 0 |
| AS10669US | JOBTRAK-AS - Jobtrak Corp. | — | — | 0 |
| AS10672US | REDSTORM - Red Storm Entertainment | — | — | 0 |
| AS10743US | GLOBALFEED - NTT Multimedia Communication Laboratories | — | — | 0 |
| AS10746US | TAI - Toshiba America, Inc. | — | — | 0 |
| AS10762US | CDN-DNS - TestDrive Corporation | — | — | 0 |
| AS10782US | HPINC - HP Inc. | — | — | 0 |
| AS10853US | ANDERSENCORP - Andersen Corporation | — | — | 0 |
| AS10861US | E-Z-NET - E-Z.Net, Inc | — | — | 0 |
| AS10864US | ELOGIC - Elogic | — | — | 0 |
| AS10892US | ISSI - Infinite Software Solutions, Inc. | — | — | 0 |
| AS10900US | EDUC-NET-PROV - Educational Network Provider | — | — | 0 |
| AS10932US | UC2B - UC2B | — | — | 0 |
| AS11111US | THOMSON-REUTERS - Thomson Reuters Holdings Inc | — | — | 0 |
| AS11116US | WATCHCOMM-IN - Watch Communications | — | — | 0 |
| AS11150US | LIGHTBOARD CORP - Lightboard Realty | — | — | 0 |
| AS11154US | SWS - Hilltop Securities Inc. | — | — | 0 |
| AS11234US | DEF-ASN-001 - Drew Eckl & Farnham, LLP | — | — | 0 |
| AS11310US | BOSTONPUB - Boston Public Schools | — | — | 0 |
| AS11400US | LNRP - LNR Property Corp | — | — | 0 |
| AS11413US | IHERB-AS-IHERB-NETWORKS - IHERB INC | — | — | 0 |
| AS11424US | TEMPLE-UNIVERSITY-HEALTH-SYSTEM - Temple University Health System, Inc. | — | — | 0 |
| AS11456US | NUVOX - Windstream Communications LLC | — | — | 0 |
| AS11536US | SRC-ASN01 - Sunrise Communications LLC | — | — | 0 |
| AS11616US | PEAPOD - Peapod, Inc. | — | — | 0 |
| AS11689US | NN-JORSM-CHI01 - Altafiber | — | — | 0 |
| AS11707US | TWC-11707-NA - Charter Communications Inc | — | — | 0 |
| AS11859US | NELLIX-RS - NELLICUS, LLC | — | — | 0 |
| AS11890US | IVANET-LA - iBasis, Inc. | — | — | 0 |
| AS12000US | FMR-AS4 - FMR LLC | — | — | 0 |
| AS12016US | SDNBROS - SDNBROS LLC | — | — | 0 |
| AS12032US | PSJAISD - Pharr-San Juan-Alamo ISD | — | — | 0 |
| AS12064US | ASN-CXA-HR-12064-CBS - Cox Communications Inc. | — | — | 0 |
| AS12108US | PROFITDEV - PROFIT DEVELOPERS INC | — | — | 0 |
| AS12117US | WCN-OMNI-BLKS - west central wireless | — | — | 0 |
| AS12197US | DRUGSTORE-COM - Drugstore.Com, Inc. | — | — | 0 |
| AS12224US | CITYOFNEWHAVEN - City of New Haven | — | — | 0 |
| AS12263US | STBH - Saint Bernard Hospital | — | — | 0 |
| AS12274US | AS-12274 - Fujitsu North America, Inc. | — | — | 0 |
| AS12441US | COMMTOUCH-ASN Cyren Inc | — | — | 0 |
| AS13321US | BROADWAY-BANDWIDTH2 - Technet International | — | — | 0 |
| AS13346US | CENTURION-MEDICAL-PRODUCTS - Centurion Medical Products Corporation | — | — | 0 |
| AS13386US | SKYRIVER - Skyriver Communications, Inc. | — | — | 0 |