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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 |
| AUSTIN-ENERGY-01 - Austin Energy Corporation |
| 1.3K |
| — |
| 2 |
| AS18573US | WCOM-TSENGR-AS - Verizon Business | 1.3K | — | 3 |
| AS393669US | PRIME-HEALTHCARE-AS - Prime Healthcare Services, Inc. | 1.3K | — | 5 |
| AS18674US | FROST-BANK - Frost Bank | 1.3K | — | 5 |
| AS54845US | PHX-DATACENTER - Crexendo Business Solutions, Inc. | 1.3K | — | 5 |
| AS40795US | COUNTY-OF-LAKE - County of Lake | 1.3K | — | 2 |
| AS54178US | USAI-NA-01 - Urban Science Applications, Inc. | 1.3K | — | 5 |
| AS25873US | MERCY - MERCY MEDICAL CENTER | 1.3K | — | 5 |
| AS62839US | FADV - First Advantage Corporation | 1.3K | — | 3 |
| AS40694US | TEKWAV - TekWav | 1.3K | — | 2 |
| AS394470US | ECLOUD360 - Ecloud360 | 1.3K | 1 | 5 |
| AS29901US | MECK-COUNTY-INET - Mecklenburg County, NC | 1.3K | — | 2 |
| AS396021US | COMCAST-MES - Comcast Cable Communications, LLC | 1.3K | — | 4 |
| AS400097US | NATIONALWIFI - National Wi-Fi | 1.3K | 35 | 40 |
| AS204769US | VPSVirtuoso DigiRDP, LLC | 1.3K | 1 | 6 |
| AS19403US | SPIRIT-AEROSYSTEMS - Spirit AeroSystems, Inc | 1.3K | — | 4 |
| AS62476US | DANC - Development Authority of the North Country | 1.3K | — | 3 |
| AS395777US | AUBFIBER - ATHENS UTILITIES BOARD | 1.3K | 65.5K | 3 |
| AS7045US | WEATHER - THE WEATHER CHANNEL, LLC | 1.3K | — | 5 |
| AS398424US | QORVO-DC - Qorvo US, Inc | 1.3K | — | 5 |
| AS394985US | HUDSONVELOCITY - City of Hudson, Ohio | 1.3K | — | 5 |
| AS3847US | NYC-REGIONAL - ENV | 1.3K | — | 5 |
| AS46696US | DATACANOPY-C1-DFW1 - Sidus Group, LLC | 1.3K | 256 | 5 |
| AS30714US | PHX-ASN - Axway Inc | 1.3K | 257 | 4 |
| AS22348US | COGNITION - Cognition AI, Inc. | 1.3K | 256 | 3 |
| AS12085US | EQUINIX-EC-DC - Equinix, Inc. | 1.3K | 2 | 6 |
| AS396283US | ASXBAR7 - Xbar7 Communications, LLC | 1.3K | — | 2 |
| AS30229US | SE2-BGP-AS - SE2, Inc | 1.3K | — | 5 |
| AS11496US | JPMORGAN-CPS-TAMPA-FL - JPMorgan Chase & Co. | 1.3K | — | 5 |
| AS8149US | ABACUS-GROUP2 - Abacus Group LLC | 1.3K | — | 5 |
| AS395363US | INFOBLOX-1 - Infoblox, Inc. | 1.3K | 5 | 10 |
| AS401669US | CLOUDCENTRX - cloudCENTRX | 1.3K | — | 3 |
| AS7116US | TOYOTA-EXT - Toyota Motor Sales, U.S.A., Inc. | 1.3K | — | 5 |
| AS63217US | VISTEX - Vistex Inc. | 1.3K | — | 4 |
| AS399290US | INFINILINK-TX - Infinilink Broadband | 1.3K | — | 4 |
| AS394169US | NASSAU-COMMUNITY-COLLEGE - Nassau Community College | 1.3K | 256 | 6 |
| AS54925US | FNSBSD - Fairbanks North Star Borough School District | 1.3K | — | 2 |
| AS10924US | DLAS-ASN - Division of Legislative Automated Systems | 1.3K | — | 2 |
| AS32256US | CYBERLINKASP - CYBERLINK USA | 1.3K | — | 5 |
| AS397760US | OPTYM - Optym, Inc. | 1.3K | — | 2 |
| AS32286US | TRIPADVISOR - TripAdvisor LLC | 1.3K | — | 5 |
| AS394887US | MONETRA-AS - Monetra Technologies LLC | 1.3K | 4 | 9 |
| AS33352US | CNF-BLOCK - GM Financial | 1.3K | — | 4 |
| AS32149US | WEBTEAM - WEBTEAM, INC | 1.3K | — | 5 |
| AS31902US | OTS - Open Technology Solutions, LLC | 1.3K | — | 5 |
| AS205484US | SPLT-EUR1 SailPoint Technologies, Inc. | 1.3K | — | 2 |
| AS398260US | ENERMUSCLE-ASN - Alternative Internet Resources | 1.3K | — | 5 |