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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS397349US | MUTABLE - Mutable | 256 | — | 1 |
| AS55065US | FORTHEALTHCARE-FTAWI - Fort HealthCare Inc | 256 | — | 1 |
| AS33534US | OTICONUS-COM - OTICON, INC. | 256 | — | 1 |
| AS26981US | GLM-MEDIA - Glm Media | 256 | — | 1 |
| AS1067US | HC-CB-216 - Hamilton County, Ohio | 256 | — | 1 |
| AS46596US | NPH - Nazarene Publishing House | 256 | — | 1 |
| AS19243US | ACMLLC - Atlantic Coast Mortgage LLC | 256 | — | 1 |
| AS401214US | HANSEN-LABS - Jacob Hansen, Sole Proprietorship | 256 | 1 | 2 |
| AS393732US | BCS - Bogdan Computer Services Inc. | 256 | 4 | 5 |
| AS40903US | KENNETWORK - Turbine Inc. | 256 | — | 1 |
| AS47078US | HEARTLAND-HEALTH - Heartland Regional Medical Center | 256 | — | 1 |
| AS401765US | CITY-OF-THOUSAND-OAKS - City of Thousand Oaks | 256 | — | 1 |
| AS395093US | TSMG7891302 - TECHNOLOGY SERVICES MANAGEMENT GROUP, LLC | 256 | — | 1 |
| AS40215US | CONTRANCORP-DAL - Contran Corporation | 256 | — | 1 |
| AS13813US | BROADSOFT-INC-NORTH-AMERICA - BroadSoft, Inc. | 256 | — | 1 |
| AS399133US | VANTAGE-POINT-SOLUTIONS - VPS Solutions, LLC | 256 | 256 | 2 |
| AS46774US | MAYVI-AS - MAYVILLE ENGINEERING COMPANY, INC. | 256 | — | 1 |
| AS402673US | ATOMROUTE-GLOBAL-AS - AtomRoute | 256 | 1 | 2 |
| AS30381US | JIMAMBA - JIMAMBA LLC | 256 | — | 1 |
| AS36151US | ACUOA-NET - The Alta Condominium Unit Owner's Association | 256 | — | 1 |
| AS402122US | SSSOOO-NETWORKS - SSS.OOO LLC | 256 | 1 | 2 |
| AS397883US | HILLIARD-CITY - City of Hilliard | 256 | — | 1 |
| AS1055US | CITY-OF-MANTECA-CALIFORNIA - City of Manteca | 256 | — | 1 |
| AS395182US | HEMPFIELDSD-PA - Hempfield School District | 256 | 256 | 2 |
| AS63215US | DRILLCOMM - Sound & Cellular, Inc. | 256 | — | 1 |
| AS35889US | GOREX - University of Hawaii | 256 | 65.5K | 2 |
| AS399842US | EA-VICTORIA - Electronic Arts, Inc. | 256 | — | 1 |
| AS1064US | AS-RIVULET - Rivulet Wireless Inc. | 256 | — | 1 |
| AS5098US | OPUSONE-NETS - Opus One Winery, LLC | 256 | — | 1 |
| AS36726US | ARROW-INTERNATIONAL - Arrow International Inc. | 256 | 1 | 2 |
| AS53652US | PMDC - Providence Management and Development Company Incorporated | 256 | — | 1 |
| AS39980US | BAER-CONSULTING - Baer Consulting, Incorporated | 256 | — | 1 |
| AS46953US | INCLEAF - FENGYE INC | 256 | 256 | 2 |
| AS64251US | MTCCC - Monona Terrace Community and Convention Center | 256 | 1 | 2 |
| AS17016US | EIS-NET - Elevation Improvement Systems, LLC | 256 | — | 1 |
| AS398484US | CLARKEUNIVERSITY-BGP - Clarke University | 256 | — | 1 |
| AS395837US | EIN - E-Innovations Networking Inc. | 256 | — | 1 |
| AS53500US | WIDOJ - Wisconsin Department of Justice | 256 | — | 1 |
| AS396885US | HEART-ASN - Heart Technologies, Inc. | 256 | — | 1 |
| AS54792US | CHICAGOWHITESOX - Chicago White Sox, LTD. | 256 | — | 1 |
| AS399059US | ROUNDABOUT - Roundabout Entertainment Inc. | 256 | — | 1 |
| AS395331US | NEW-YORK-PROTON-MANAGEMENT - New York Proton Management, LLC | 256 | — | 1 |
| AS21610US | SAP-SE-YVR - SAP America Inc. | 256 | — | 1 |
| AS1829US | LANL-NV - Los Alamos National Laboratory | 256 | 1 | 2 |
| AS393685US | SCOPUSFUND - Scopus Asset Management, L.P. | 256 | — | 1 |
| AS21953US | TCSL - Time Clock Solutions, LLC | 256 | — | 1 |