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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 |
| AS13384US | SECURENET-AS - Worldpay, LLC | — | — | 0 |
| AS13407US | ONECOM-CTC - Windstream Communications LLC | — | — | 0 |
| AS13419US | HARDCASTLE-B2B - Peak6 Group LLC | — | — | 0 |
| AS13432US | ASN-CXA-LV-13432-CBS - Cox Communications Inc. | — | — | 0 |
| AS13587US | CITIDIRECT-GCS - Citibank N.A. | — | — | 0 |
| AS13639US | ING-AMERICAS-WHOLESALE - ING Financial Services, LLC | — | — | 0 |
| AS13665US | VRIS-AS-BLOCK - Verizon Business | — | — | 0 |
| AS13689US | BLUELINX-CORP - BlueLinx Corporation | — | — | 0 |
| AS13707US | IBGSAC-AS01 - Inertia Beverage Group Inc. | — | — | 0 |
| AS13758US | IRVING-CONVENTION-CENTER-01 - SMG - Irving Convention Center | — | — | 0 |
| AS13772US | THINKTECH-3 - Charles Schwab & Co., Inc. | — | — | 0 |
| AS13870US | SKYWOLF - Skywolf Technology LLC | — | — | 0 |
| AS13933US | HEALTHECONNECTIONS-01 - HealtheConnections | — | — | 0 |
| AS14009US | APPLESEEDS - Appleseed's | — | — | 0 |
| AS14022US | BBCOM - Backbone Communications, Inc. | — | — | 0 |
| AS14050US | SYRACUSE-METRONET - Syracuse Metronet Inc. | — | — | 0 |
| AS14077US | AMBIENT-BROADBAND - Ambient Broadband | — | — | 0 |
| AS14181US | UBETWIRELESS - UBET Wireless | — | — | 0 |
| AS14260US | USROYALINS - Royal&Sunalliance Insurance | — | — | 0 |
| AS14323US | AS14323 - Syniverse Technologies, LLC | — | — | 0 |
| AS14342US | ITCM-UCIN - Allstream Business US, LLC | — | — | 0 |
| AS14392US | COF-EQX-EAST-O365 - Capital One Financial Corporation | — | — | 0 |
| AS14394US | KBCFP-NYC - KBC BANK N.V. | — | — | 0 |
| AS14468US | RIDER-UNIVERSITY - Rider University | — | — | 0 |
| AS14648US | COUNTY-OF-BUTTE-CA - COUNTY OF BUTTE | — | — | 0 |
| AS14724US | LOCAL2U - Local2U (West Virginia) LLC | — | — | 0 |
| AS14728US | MW-INDIANA - Mercury Broadband | — | — | 0 |
| AS14741US | BIZLAND-SD - Newfold Digital, Inc. | — | — | 0 |
| AS14854US | AOL-MTC2 - Yahoo Holdings Inc. | — | — | 0 |
| AS14883US | C3-TRACI - C3 | — | — | 0 |
| AS14913US | MEDIA-NEWS-GROUP - MEDIA NEWS GROUP | — | — | 0 |
| AS14949US | VSATSYSTEMS-01 - Satassurance, LLC | — | — | 0 |
| AS15004US | GTELCO - Gunnison Telephone Company | — | — | 0 |
| AS15072US | NETRIPLEX-CORPORATION - Netriplex Corporation | — | — | 0 |
| AS15152US | MODIVCARE-ASN1 - Modivcare Inc. | — | — | 0 |
| AS16442US | M2NGAGE2 - M2ngage Telecommunications II Corp. | — | — | 0 |
| AS16474US | RESPONSYS-1 - Responsys Inc. | — | — | 0 |
| AS16484US | BROADVIEWNET-AS-16484 - Windstream Communications LLC | — | — | 0 |
| AS16644US | ZANG-01 - Zangmeister cancer Center | — | — | 0 |
| AS16651US | SOCKET-2 - Socket Holdings Corporation | — | — | 0 |
| AS16683US | MERCERGLOBAL - Mercer Global Advisors, Inc. | — | — | 0 |
| AS16694US | ICSI - ICSI | — | — | 0 |
| AS16702US | AKAMAI-AS - Akamai Technologies, Inc. | — | — | 0 |
| AS16759US | SWA-MKT-INET - Southwest Airlines Co. | — | — | 0 |
| AS16775US | APPOINTMENTPLUS - AppointmentPlus | — | — | 0 |
| AS16879US | SUSQ-CTALK - Susquehanna International Group, LLP | — | — | 0 |