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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. | 211.1M | 21,110 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,246 |
| 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 | 1,954 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,419 |
| — |
| — |
| 0 |
| AS31954US | CARDINALHEALTH-AS03 - Cardinal Health, Inc. | — | — | 0 |
| AS31985US | WANONYMOUS - WANSecurity, Inc. | — | — | 0 |
| AS31988US | WESTCOAST-COLO - Inuvo Inc. | — | — | 0 |
| AS32070US | TAMNET - TAM Network | — | — | 0 |
| AS32084US | GOS-MIA1 - Global Outsource Services LLC | — | — | 0 |
| AS32116US | YAHOO-4 - Yahoo Holdings Inc. | — | — | 0 |
| AS32184US | ANY2-RS-EAST - CoreSite | — | — | 0 |
| AS32199US | EUSEHOST LLC - EuseHost LLC | — | — | 0 |
| AS32241US | ACPANA - HostPapa | — | — | 0 |
| AS32271US | TRAPP-ONLINE - Trapp Online, LLC | — | — | 0 |
| AS32272US | UNWIRED-ASN - Unwired Broadband, LLC | — | — | 0 |
| AS32357US | STRUCTURED-AS - Structured IP services | — | — | 0 |
| AS32407US | FREEDOM-MORTGAGE - Freedom Mortgage Corporation | — | — | 0 |
| AS32499US | SHEKELS - Shekels LLC | — | — | 0 |
| AS32502US | SLCL-ASN - St. Louis County Library | — | — | 0 |
| AS32724US | WEST-B2B-OMA - West Technology Group, LLC | — | — | 0 |
| AS32748US | STEADFAST - Steadfast | — | — | 0 |
| AS32780US | HOSTINGSERVICES-INC - Hosting Services, Inc. | — | — | 0 |
| AS32807US | ASN-INTERFACE-INC - INTERFACE INCORPORATED | — | — | 0 |
| AS32874US | ASSOCIATION-TECHNOLOGIES - Association Technologies, Inc. | — | — | 0 |
| AS32937US | XOGROUP - XO Group, Inc. | — | — | 0 |
| AS32972US | CORPTAX-INC-1 - Corptax, Inc. | — | — | 0 |
| AS33020US | DEEPLY2 - Deeply II LLC | — | — | 0 |
| AS33049US | TELENAV2004 - TeleNav, Inc. | — | — | 0 |
| AS33064US | SNEI-SD - Sony Media Software and Services Inc. | — | — | 0 |
| AS33104US | AS769 - hostdaz LLC | — | — | 0 |
| AS33224US | TWRS-LA - Towerstream I, Inc. | — | — | 0 |
| AS33231US | IMTECH-GRAPHICS - Imtech Graphics, Inc. | — | — | 0 |
| AS33267US | JMC-FRB - JPMorgan Chase & Co. | — | — | 0 |
| AS33334US | RISE-TX-ECCENTRIX-AS33334 - JAB Wireless, INC. | — | — | 0 |
| AS33338US | TUALITY-HEALTHCARE - TUALITY HEALTHCARE | — | — | 0 |
| AS33386US | EFRONTIER-0 - Adobe Inc. | — | — | 0 |
| AS33421US | EXIUM - Exium, Inc. | — | — | 0 |
| AS33423US | AS-SGT - SierraGem Technologies, LLC | — | — | 0 |
| AS33451US | METACAPITAL-NYC - METACAPITAL MANAGEMENT, L.P. | — | — | 0 |
| AS33453US | FLUENTTRADE - Fluent API Development Inc | — | — | 0 |
| AS33497US | CHARTER-33497-NA - Charter Communications LLC | — | — | 0 |
| AS33562US | ASSURANT-MIA01INET - Assurant, Inc. | — | — | 0 |
| AS33571US | TEC-ELCAMINO-BGP - Vistage Worldwide, Inc. | — | — | 0 |
| AS33578US | ALTER-TRADING - ALTER TRADING COMPANY | — | — | 0 |
| AS33681US | COMPTRK - Competitrack Inc. | — | — | 0 |
| AS33686US | MIDCO-SUNDOT - Midcontinent Communications | — | — | 0 |
| AS33698US | SECURE-24-DCA - NTT Managed Services Americas, LLC | — | — | 0 |
| AS33750US | FASTSIGNS-INTL - FASTSIGNS International, Inc. | — | — | 0 |
| AS35882US | TERADATACLOUD1 - Teradata Operations, Inc. | — | — | 0 |
| AS35961US | AIM-33-AS - CareIon Medical Benefits Management, Inc. | — | — | 0 |