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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. | 218.2M | 25,766 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| 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.
32,243 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,998 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,359 |
| 512 |
| — |
| 2 |
| AS21885US | AS1 - McLane Advanced Technologies, LLC | 512 | — | 1 |
| AS17196US | COD-GE-IL - College of duPage | 512 | — | 1 |
| AS33318US | AS-AHC-80 - Agfa HealthCare Corporation | 512 | — | 2 |
| AS11929US | MFAOIL - MFA Oil Company | 512 | — | 2 |
| AS30403US | EL-ROCHESTER-NY - Ellucian Company LP | 512 | — | 2 |
| AS32639US | SOLARNETONE - SolarNetOne, Inc. | 512 | 4.1K | 4 |
| AS32192US | EMPRISEBANK - EMPRISE BANK | 512 | — | 1 |
| AS26699US | MUHLENBERG-COLLEGE - Muhlenberg College | 512 | — | 2 |
| AS20286US | AMER-COLLEGE-OF-CARDIOLOGY-WASHINGTONDC - American College of Cardiology | 512 | — | 2 |
| AS36551US | COMPASSION-INTL-GMC1 - Compassion International, Inc. | 512 | — | 2 |
| AS394040US | WELLS-ENTERPRISES - Wells Enterprises, Inc. | 512 | — | 2 |
| AS399241US | OCEAN-BANK - Ocean Bank | 512 | — | 2 |
| AS395725US | USACS-1001 - USACS | 512 | — | 2 |
| AS396359US | MASCOCABINETRY - Cabinetworks Group Michigan, LLC | 512 | — | 2 |
| AS46870US | NJRNET-2009 - New Jersey Resources | 512 | — | 2 |
| AS6305US | AENT-AS - Alliance Entertainment | 512 | — | 2 |
| AS35974US | QTS-EEM - Quality Technology Services, LLC | 512 | — | 2 |
| AS17167US | MCSNOC01 - Microchip Computer Solutions, Inc. | 512 | — | 2 |
| AS40604US | N2N-TECHNOLOGIES - N2N Technologies, Inc. | 512 | — | 2 |
| AS30061US | WINSUPPLY-INC - Winsupply Inc. | 512 | — | 2 |
| AS36376US | AS-CHENIERE - Cheniere Energy, Inc. | 512 | — | 2 |
| AS53546US | LEGION - Legion, Inc. | 512 | — | 1 |
| AS399480US | TI-GARLAND-QX-HUB - Texas Instruments Incorporated | 512 | — | 2 |
| AS16693US | AS-MIKES-HARD - mikes hard lemonade | 512 | — | 2 |
| AS36546US | OREILLYAUTO - O'Reilly Automotive Inc. | 512 | — | 2 |
| AS27480US | MTC-CORP - Management & Training Corporation | 512 | — | 1 |
| AS1003US | ANDREWNET - andrewnet | 512 | 11 | 13 |
| AS400227US | INTERACTIVE-BROKERS-CORP - Interactive Brokers Corp | 512 | — | 2 |
| AS22579US | INDEPENDENCE-HEALTH-SYSTEM-BUTLER - Butler Memorial Hospital | 512 | — | 2 |
| AS30508US | TXDPS - Texas Department of Public Safety | 512 | — | 2 |
| AS17009US | SHOPTIKAL - Shopko Optical | 512 | — | 2 |
| AS22588US | DOMIN-AS - DOMINION ENTERPRISES | 512 | — | 2 |
| AS18679US | I4A-NETWORK - internet4associations | 512 | — | 2 |
| AS27206US | COSL-01 - City of Sugar Land | 512 | — | 2 |
| AS400135US | JEDUNN - JE DUNN CONSTRUCTION COMPANY | 512 | — | 2 |
| AS13457US | 13457-WOLVERINE-POWER-SUPPLY - Wolverine Power Supply | 512 | — | 2 |
| AS63249US | RSFH - Roper Saint Francis Healthcare | 512 | — | 2 |
| AS401365US | SMF-ASN-01 - Saia Motor Freight Line, LLC | 512 | — | 2 |
| AS396041US | HFC-ASN - HollyFrontier Corporation | 512 | — | 2 |
| AS394127US | ALACRITYSERVICES - Alacrity Services | 512 | — | 2 |
| AS18798US | INTERNET-SERVICES - Encore Group (USA) LLC | 512 | — | 2 |
| AS402091US | AYIT-01 - oknumbers inc | 512 | — | 2 |
| AS31922US | DATTO-ENT - Datto, LLC | 512 | — | 2 |
| AS47094US | ITRON-6-47094 - Itron | 512 | — | 2 |
| AS394499US | DIMENSIONAL - Dimensional Fund Advisors | 512 | — | 2 |
| AS62517US | TAIWAN-TELECOM - Taiwan Telecom | 512 | 1 | 3 |