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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. | 218M | 23,961 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,159 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,341 |
| — |
| — |
| 0 |
| AS27532US | MODUSLINK-RALEIGH - ModusLink Corporation | — | — | 0 |
| AS27537US | ACCAAS - Callcentric Wholesale, Inc. | — | — | 0 |
| AS27542US | KKAMERICA - K+K America Corporation | — | — | 0 |
| AS27577US | NWF-LOCALTEL-ASN-3 - Ziply Fiber | — | — | 0 |
| AS29714US | NAHB-RESEARCH-CENTER - Home Innovation Research Labs, Inc. | — | — | 0 |
| AS29735US | FSU-RES - Florida State University | — | — | 0 |
| AS29737US | WOW-INTERNET - WideOpenWest Finance LLC | — | — | 0 |
| AS29743US | NO-2-BYTE-AS-NUMBER - Fusion, LLC | — | — | 0 |
| AS29795US | DATABANK-LATISYS - Latisys-Denver, LLC | — | — | 0 |
| AS29814US | NAVE-JH - Navisite Opco LLC | — | — | 0 |
| AS29904US | THEBOE-29904 - The Boeing Company | — | — | 0 |
| AS29933US | FIRSTDIGITAL - FirstDigital Communications, LLC | — | — | 0 |
| AS30095US | WPP-IT-NEWYORK-OGILVY - Group M Worldwide, LLC | — | — | 0 |
| AS30101US | CSEINS-AS - CSE SAFEGUARD INSURANCE COMPANY | — | — | 0 |
| AS30128US | ISC-F-AS - Internet Systems Consortium, Inc. | — | — | 0 |
| AS30161US | SEMRUSH-INC - Semrush Inc. | — | — | 0 |
| AS30213US | CHARTER-30213-NA - Charter Communications LLC | — | — | 0 |
| AS30240US | RXN3 - BT Americas, Inc | — | — | 0 |
| AS30451US | LANIERTECH-TCSG-GA - Lanier Technical College | — | — | 0 |
| AS30541US | OSPRAIE-NYC - Ospraie Fund | — | — | 0 |
| AS30642US | HEALTHNET-AS - HealthNet, Inc. | — | — | 0 |
| AS30652US | JACKHENRY-4 - Jack Henry & Associates, Inc. | — | — | 0 |
| AS30660US | CHARTER-30660-NA - Charter Communications LLC | — | — | 0 |
| AS31767US | SSREBGP - SMITH SECKMAN REID, INC | — | — | 0 |
| AS31815US | MEDIATEMPLE - GoDaddy.com, LLC | — | — | 0 |
| AS31818US | RIDGEWOODPOWER-NJ - Ridgewood Power | — | — | 0 |
| AS31897US | SUMMACARE-HEALTH-PLAN-ASN - SUMMACARE HEALTH PLAN | — | — | 0 |
| AS31909US | VONAGE-04 - Vonage Holdings, Inc. | — | — | 0 |
| AS31939US | GIGSTREEM-GIGAMONSTER - GiGstreem | — | — | 0 |
| AS32078US | SFFCU-AS - San Francisco Fire Credit Union | — | — | 0 |
| AS32088US | WISCONSIN-REINSURANCE-CORP - Wisconsin Reinsurance Corporation | — | — | 0 |
| AS32090US | UHAUL-INET3 - UHAUL INTERNATIONAL, INC. | — | — | 0 |
| AS32134US | CG-US-AS1 - Cap Gemini America, Inc. | — | — | 0 |
| AS32151US | JORDAN-CU - Jordan Credit Union | — | — | 0 |
| AS32152US | CCNBI-AS1 - CCNBI, Inc | — | — | 0 |
| AS32202US | RCPL-13-ASN - Reynolds Consumer Products LLC | — | — | 0 |
| AS32235US | ASN-AAL - Antipodean Advisors, LLC | — | — | 0 |
| AS32239US | INTERACTIVECARE - InteractiveCare, LLC | — | — | 0 |
| AS32283US | CALLMOR-AS - CallMOR | — | — | 0 |
| AS32299US | TELX-RS - Telx | — | — | 0 |
| AS32448US | METROCAST-1 - Breezeline | — | — | 0 |
| AS32459US | BRANCH-PFN - Branch Networks LLC | — | — | 0 |
| AS32483US | AS32483 - Fidelity National Information Services, Inc. | — | — | 0 |
| AS32496US | JPMORGAN-AS32496 - JPMorgan Chase & Co. | — | — | 0 |
| AS32623US | TWRS-PW - Towerstream I, Inc. | — | — | 0 |
| AS32664US | CLOUDNET-AS2 - Cloudnet, Inc. | — | — | 0 |