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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 | 21,173 |
| 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 | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,420 |
| — |
| — |
| 0 |
| AS22329US | BAYMOUNTAIN - Flexential Corp. | — | — | 0 |
| AS22526US | ITC-ASN - ITC Holdings Corp | — | — | 0 |
| AS22852US | PLESKLOGIN - PleskLogin Net | — | — | 0 |
| AS22859US | GOOGLE - Google LLC | — | — | 0 |
| AS22914US | BIGRIVER2 - Big River Telephone Company, LLC | — | — | 0 |
| AS22956US | AST - American Stock Transfer & Trust Co. | — | — | 0 |
| AS22967US | CIMATELECOM1 - Cima Telecom, Inc. | — | — | 0 |
| AS23328US | EST-INC-ASN - EST, Inc. | — | — | 0 |
| AS23365US | IFBYPHONE - Invoca, Inc. | — | — | 0 |
| AS23440US | PEAK10CIN - Flexential Corp. | — | — | 0 |
| AS23449US | EXODO-ANYCAST-NET - Exodo LLC | — | — | 0 |
| AS23519US | NGISCORV - Alyrica Networks Inc. | — | — | 0 |
| AS25572US | ISC-MAD1 Internet Systems Consortium Inc. | — | — | 0 |
| AS25665US | EV-CLOUD - Veritas Technologies LLC | — | — | 0 |
| AS25721US | AS-CHICAGO - Morningstar, Inc. | — | — | 0 |
| AS25919US | CONST-89-25919 - ConstructConnect Inc. | — | — | 0 |
| AS26033US | VIRTU-26033 - Virtu Financial Operating LLC | — | — | 0 |
| AS26103US | ACIG - ACIG | — | — | 0 |
| AS26238US | OPTICALS - OPTICAL SOCIETY OF AMERICA | — | — | 0 |
| AS26390US | SERVESA-LLC - Servesa LLC | — | — | 0 |
| AS26509US | AS-CDS-OFFICE-1 - Computer Development Systems, LLC | — | — | 0 |
| AS26530US | SIRUS-AS1 - Sirus, Inc | — | — | 0 |
| AS26648US | MERITENERGY - Merit Energy Company | — | — | 0 |
| AS26656US | MISYS-AS - Finastra Technology Inc. | — | — | 0 |
| AS26689US | CL-IX - H5 Data Centers | — | — | 0 |
| AS26719US | AI-18-26719 - Otava, LLC | — | — | 0 |
| AS26749US | CALLTOWER - CallTower, Inc. | — | — | 0 |
| AS26834US | ROSE-WEB-SERVICES - Rose Web Services LLC | — | — | 0 |
| AS26910US | GOOGLE-CLOUD-2 - Google LLC | — | — | 0 |
| AS26985US | MACERICH - THE MACERICH COMPANY | — | — | 0 |
| AS27040US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27048US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27092US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27095US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS27266US | SN-155 - Supernova Networks, INC | — | — | 0 |
| AS27273US | DC37 - District Council 37 | — | — | 0 |
| AS27308US | INTELEMAGE - Intelemage, LLC | — | — | 0 |
| AS27354US | EQUINIX-CX-MI - Equinix, Inc. | — | — | 0 |
| AS27467US | AS-TIERP-27467 - TierPoint, LLC | — | — | 0 |
| AS27494US | NATL-MACH10 - Performive LLC | — | — | 0 |
| AS27525US | FNF-CLOUD2 - Fidelity National Financial Inc. | — | — | 0 |
| AS27538US | NOBLEENERGY-ASN2 - Chevron Corporation | — | — | 0 |
| AS27561US | BRONGUS - Brongus | — | — | 0 |
| AS27627US | KINGDOM-TECHNOLOGY-SOLUTIONS - Kingdom Technology Solutions | — | — | 0 |
| AS27642US | THEDOCTORSCOMPANY - The Doctors Company | — | — | 0 |
| AS29710US | BUNCOMBECOSCHOOLS - Buncombe County Schools | — | — | 0 |