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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 | 24,346 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 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 | 1,996 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 512 |
| 4.1K |
| 2 |
| AS64201US | PUREIP - Pure IP US LLC | 512 | — | 1 |
| AS397633US | WWE-CORP - WWE | 512 | — | 2 |
| AS396109US | YOKO-NETWORKS - Yoko Networks Inc. | 512 | 4.1K | 3 |
| AS397645US | EPICGA-DC1-AS - Epic Games Inc. | 512 | — | 2 |
| AS1437US | VISONEX-LLC - Visonex LLC | 512 | — | 2 |
| AS40532US | BUS-DATA-INC - Business Data, Inc. | 512 | — | 2 |
| AS15025US | AS-BARTOW - City of Bartow | 512 | — | 2 |
| AS396014US | TSG - TSG Resources, Inc. | 512 | — | 2 |
| AS36572US | WPBF-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS30385US | PERDUE-FARMS-INCORPORATED - Perdue Farms Incorporated | 512 | — | 2 |
| AS398193US | GCMCO - G. C. M. COMPUTERS, INC. | 512 | — | 2 |
| AS1446US | TPC-1 - Tutor Perini Corporation | 512 | — | 2 |
| AS395183US | ETEC-CORP-AS - ETEC | 512 | — | 2 |
| AS62647US | GFFCU - Grow Financial Federal Credit Union | 512 | — | 2 |
| AS396883US | MTG-RHR-ASN-01 - Millennium Technology Group, Inc. | 512 | — | 2 |
| AS36173US | KCI - Kinetic Concepts, Inc. | 512 | — | 2 |
| AS54236US | PPPA-ASN - Pacific Press Publishing Association, Inc | 512 | — | 2 |
| AS21885US | AS1 - McLane Advanced Technologies, LLC | 512 | — | 1 |
| AS36596US | FACC - Florida Association of Court Clerks, Inc. | 512 | — | 2 |
| AS19694US | VHP-ASN - Vantage Health Plan, Inc. | 512 | 16 | 2 |
| AS11789US | SURFAIRWIRELESS-IN-03 - Surf Air Wireless, LLC | 512 | — | 1 |
| AS401763US | BLUEPULSENETWORKSLLC - Blue Pulse Networks LLC | 512 | 4.1K | 3 |
| AS13516US | CTCA1336 - Cancer Treatment Centers of America, Inc. | 512 | — | 2 |
| AS16856US | BLESSING-HEALTH-SYSTEM-AS - Blessing Hospital | 512 | — | 2 |
| AS40600US | STRIDEBANK-ASN - Stride | 512 | — | 2 |
| AS26282US | SYMANTEC-US - Avago Technologies U.S. Inc. | 512 | 2 | 4 |
| AS13971US | FDS-AS-NY - HedgeServ Corporation | 512 | — | 2 |
| AS62894US | PSD-EDTEC-K20-RC-01 - Puyallup School District | 512 | — | 2 |
| AS397133US | USG-NPE-WEST01 - ULTIMATE SOFTWARE GROUP | 512 | — | 2 |
| AS394918US | TBI-ASN-3 - TrueBlue, Inc. | 512 | — | 1 |
| AS29721US | CSHS-ELSEGUNDO - Cedars-Sinai Health Systems | 512 | — | 2 |
| AS31859US | ANGELINA-COUNTY - ANGELINA COUNTY | 512 | 1 | 2 |
| AS13498US | TSYS-SDC-THS - Global Payments Inc. | 512 | — | 2 |
| AS6498US | INTRADO-CORP - West Technology Group, LLC | 512 | — | 2 |
| AS36313US | LTICTASN01 - Lendingtools.com Inc. | 512 | — | 2 |
| AS46218US | COMPORIUM-AS-2 - Comporium, Inc | 512 | 65.5K | 6 |
| AS19682US | TLFXAS01 - TeleFlex Networks, LLC | 512 | — | 1 |
| AS402251US | BOLD-ROOSEV-HED - Apogee Telecom Inc. | 512 | — | 2 |
| AS398985US | CITY-OF-ARVADA - City of Arvada | 512 | — | 2 |
| AS401900US | PROCIRRUS - PROCIRRUS TECHNOLOGIES, INC | 512 | — | 2 |
| AS398976US | ALT-1 - BELLE HOLDINGS LLC | 512 | — | 2 |
| AS401998US | CIRRUS-EXT - Cirrus Guest Services | 512 | 4.4K | 4 |
| AS25952US | AEAINVESTORS - AEA Investors Inc. | 512 | — | 2 |
| AS396868US | SMBC-CM - SMBC Capital Markets, Inc. | 512 | — | 2 |
| AS398306US | CR-NETWORK-LLC - CR Network LLC | 512 | — | 1 |
| AS395320US | LAKE-CHARLES-MEMORIAL-HOSPITAL - Lake Charles Memorial Hospital | 512 | — | 2 |