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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 |
| 1.3K |
| — |
| 2 |
| AS396010US | FTC-ASN1 - Franklin Telephone Company, Inc | 1.3K | — | 4 |
| AS53616US | ASYMPTOTE - ASYMPTOTE NETWORK, LLC | 1.3K | — | 2 |
| AS394218US | VXI - VXI Global Solutions, LLC | 1.3K | — | 4 |
| AS21807US | AETHERIAL-NETWORKS - Aetherial Networks LLC | 1.3K | 256 | 6 |
| AS393387US | PORT-OF-TACOMA-ASN - Port of Tacoma | 1.3K | — | 2 |
| AS33085US | THE-MENS-WEARHOUSE - The Men's Wearhouse | 1.3K | — | 5 |
| AS397410US | MTG-AS - Mainstream Technology Group | 1.3K | — | 4 |
| AS32776US | SMART-CITY-CHCC - SMART CITY NETWORKS, LIMITED PARTNERSHIP | 1.3K | — | 3 |
| AS17178US | MOTIONINDUSTRIES - Motion Industries, Inc. | 1.3K | — | 5 |
| AS399765US | FASNET-SERVICES - FasNET Services LLC | 1.3K | 320 | 6 |
| AS399408US | NUBROADWACA - COAXIAL NETWORKS INC | 1.3K | 1 | 5 |
| AS25985US | SYMBIOSYSTEMS - SymbioSystems LLC | 1.3K | — | 5 |
| AS30046US | EIC - Erie Indemnity Company | 1.3K | — | 5 |
| AS32969US | GLOBAL-CASH-ACCESS - Everi Payments Inc. | 1.3K | — | 5 |
| AS1074US | PRODUCTION-NETWORKS - Production Networks, LLC | 1.3K | — | 2 |
| AS394099US | DECORAH-METRONET - Decorah MetroNet | 1.3K | 65.5K | 4 |
| AS18693US | UCH-CENTRAL - University of Colorado Hospital | 1.3K | — | 4 |
| AS22546US | WEYERHAEUSER - Weyerhaeuser Company | 1.3K | — | 2 |
| AS62474US | EWEB - Eugene Water and Electric Board | 1.3K | — | 2 |
| AS999US | CORIX-999 - CORIX NETWORKS | 1.3K | 65.6K | 21 |
| AS11140US | BEHRPROCESS - Behr Process | 1.3K | — | 2 |
| AS46340US | HR2 - HireRight LLC | 1.3K | — | 5 |
| AS397071US | AWEB-LLC-ASN - AWEB LLC | 1.3K | 1 | 6 |
| AS27613US | TYLERTECH-CCS1 - Tyler Technologies, Inc. | 1.3K | 5 | 10 |
| AS13837US | POINT5-MS - Point5 Managed Services, LLC | 1.3K | 65.5K | 5 |
| AS400783US | DFC-ASN-01 - Dole Food Company, Inc. | 1.3K | — | 5 |
| AS394516US | COUNTYOFNAPAAS - County of Napa MIS | 1.3K | — | 2 |
| AS33261US | PHRG - Power Home Remodeling LLC | 1.3K | — | 5 |
| AS397860US | HIT - HANKINS INFORMATION TECHNOLOGY | 1.3K | — | 2 |
| AS47689US | Pudu Pudu, LLC | 1.3K | 65.8K | 13 |
| AS31814US | FSI - FlightSafety International | 1.3K | — | 5 |
| AS16493US | ABERCROMBIE-FITCH - Abercrombie & Fitch | 1.3K | — | 5 |
| AS19470US | LCPS - LAS CRUCES PUBLIC SCHOOLS | 1.3K | 256 | 3 |
| AS27527US | HTFCU-AS - Heritage Trust Federal Credit Union | 1.3K | — | 2 |
| AS14278US | BBOX-IT-AS-1 - Black Box Network Services | 1.3K | — | 5 |
| AS399545US | CCTC-ASN1 - Coleman County Telephone Cooperative, Inc. | 1.3K | — | 2 |
| AS19747US | DATAVAIL-ASN - Datavail | 1.3K | 18 | 7 |
| AS32582US | 600AMPS - 600Amps Internet Services, Inc. | 1.3K | 4.1K | 4 |
| AS33714US | HBCS-NC-AS1 - Hospital Billing and Collection Service, LTD | 1.3K | — | 2 |
| AS46171US | CFBISD-AS1 - Carrollton-Farmers Branch Independent School Dist. | 1.3K | — | 5 |
| AS53629US | CNBT-AS - THE CITY NATIONAL BANK OF TAYLOR | 1.3K | — | 5 |
| AS394915US | DFC-WASH - U.S. International Development Finance Corporation | 1.3K | 32 | 7 |
| AS40588US | WELLSPAN-WOC-AS - York Hospital | 1.3K | — | 5 |
| AS46614US | SENCI-46614 - Sencinet LatAm (Nevada) Corp. | 1.3K | — | 5 |
| AS21763US | ROSSSTORES - Ross Stores Inc. | 1.3K | — | 5 |
| AS27220US | BGPGRID - BGP GRID Inc. | 1.3K | — | 2 |