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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 | 24,389 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,302 |
| 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.
32,169 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 | 4,341 |
| 1.3K |
| — |
| 4 |
| AS402782US | AS-JPY - TAIPEI101 | 1.3K | 33 | 7 |
| AS40166US | DAEMEN-COLLEGE - Daemen University | 1.3K | — | 2 |
| AS53871US | DELTEK-NET - Deltek, Inc. | 1.3K | — | 5 |
| AS27239US | 101VOICE - 101VOICE | 1.3K | — | 4 |
| AS12153US | HBI-ASN1 - HBI Branded Apparel Enterprises, LLC | 1.3K | — | 5 |
| AS399334US | SKYSILK-02 - Skysilk | 1.3K | 1 | 4 |
| AS27343US | MONSANTO-INET - Monsanto | 1.3K | — | 3 |
| AS13627US | AMBYRE - Ambyre LLC | 1.3K | 1K | 10 |
| AS54466US | AS-ISSQUARED - ISSQUARED, Inc. | 1.3K | — | 5 |
| AS8104US | PENTA-DC1 - Pentagon Federal Credit Union | 1.3K | — | 4 |
| AS14139US | AS-MAXOR - Maxor National Pharmacy Services, LLC | 1.3K | — | 4 |
| AS402344US | XPCTECH - XPCTECH | 1.3K | 65.5K | 5 |
| AS395988US | ECFMG - ECFMG | 1.3K | — | 2 |
| AS35980US | GCL-01 - Good Connections, LLC | 1.3K | 15 | 20 |
| AS399435US | LIPAN-TELEPHONE-COMPANY - Lipan Telephone Company | 1.3K | — | 4 |
| AS399909US | FRANKLINCOLLEGE - Franklin College of Indiana | 1.3K | — | 3 |
| AS13347US | MIDWEST-CABLE - Midwest Cable | 1.3K | 524.3K | 6 |
| AS26063US | ALCONLABS-11975 - Alcon Labs, Inc. | 1.3K | — | 5 |
| AS62698US | SUPPLYFRAME - Supply Frame, Inc. | 1.3K | — | 4 |
| AS26215US | XCLUTEL - Xclutel LLC | 1.3K | — | 2 |
| AS5877US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | 1.3K | — | 5 |
| AS22624US | FREMONTBANK - Fremont Bank | 1.3K | — | 5 |
| AS394895US | HCDL-ST-LOUIS-DATA-CENTER - H5 Data Centers | 1.3K | 256 | 6 |
| AS19179US | COEP - City of El Paso | 1.3K | — | 4 |
| AS20111US | LENOVO-NET - Lenovo (United States) Inc. | 1.3K | — | 4 |
| AS400397US | HERKIMER-COUNTY-COMMUNITY-COLLEGE - Herkimer County Community College | 1.3K | — | 5 |
| AS396908US | LAURENS-TECHNOLOGIES-INTERNET-SERVICES - Laurens Technologies Internet Services | 1.3K | 440 | 129 |
| AS32884US | DV-TRADING-LLC - DV TRADING, LLC | 1.3K | — | 5 |
| AS16744US | WUCHICAGO - THE WESTERN UNION COMPANY | 1.3K | — | 3 |
| AS13448US | WEBSENSE - Forcepoint, LLC | 1.3K | 1 | 5 |
| AS19864US | HFASERVICES - HFA Specialty Assets LLC | 1.3K | — | 3 |
| AS11495US | COMNEXIA-CLEC - COMNEXIA Corporation | 1.3K | — | 5 |
| AS400963US | AS-GLXY-DIGITAL - Galaxy Digital LP | 1.3K | — | 5 |
| AS54761US | ARIN-SAMBREEL-SVCS - Sambreel Services, LLC | 1.3K | — | 5 |
| AS53811US | SFCL-HNP - San Francisco Chronicle, LLC | 1.3K | — | 2 |
| AS40625US | TWC-WESTELCOM-MULTIHOMED - Jefferson Community College | 1.3K | — | 5 |
| AS401948US | MIXBOOST-D - VERYBOOST INC | 1.3K | — | 5 |
| AS63434US | NFA - National Futures Association | 1.3K | — | 5 |
| AS400915US | PURENODAL-01 - Pure Nodal, Inc. | 1.3K | — | 5 |
| AS396336US | HHS-DC - Holzer Health System | 1.3K | — | 5 |
| AS401990US | STORM-NET - StormNode Systems LLC | 1.3K | — | 5 |
| AS32205US | 45SHOP - ECHO45 ADVISORS LLC | 1.3K | — | 5 |
| AS22606US | EXACT-7 - Salesforce.com, Inc. | 1.3K | — | 5 |
| AS53263US | GRCC-AS1 - Grand Rapids Community College | 1.3K | — | 2 |
| AS55291US | HARRIS-COUNTY-AS - Harris County | 1.3K | — | 2 |
| AS393972US | CMECCONNECT - Coles Moultrie Electric Cooperative | 1.3K | — | 4 |