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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,173 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,242 |
| 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.
31,994 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,668 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,949 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,365 |
| 512 |
| 4.1K |
| 3 |
| AS401587US | TEXTNOW-CUST-01 - TextNow Inc. | 512 | 514 | 6 |
| AS393322US | CALERO - Calero MDSL | 512 | — | 1 |
| AS40442US | ARCUSTECH - Arcustech, LLC | 512 | — | 2 |
| AS40710US | CLC-98-ILLINOIS - College of Lake County | 512 | — | 2 |
| AS395668US | EFM-ENTERPRISE-FLEET-MGMT - Enterprise Fleet Management, Inc | 512 | — | 2 |
| AS25922US | CHS-1 - Acuity - CHS, LLC | 512 | — | 2 |
| AS26208US | COUNTY-OF-ESSEX-NJ - County of Essex NJ | 512 | — | 2 |
| AS397440US | TAVANT-SC9-DATACENTER - Tavant Technologies, Inc. | 512 | — | 2 |
| AS399426US | ASTSUL-ASN-01 - Applied Satellite Technology Systems US LLC | 512 | — | 1 |
| AS399497US | TCBK-AS1 - Tri Counties Bank | 512 | — | 2 |
| AS12218US | AMERICAN-INSTITUTES-FOR-RESEARCH - American Institutes for Research | 512 | — | 2 |
| AS393846US | ROUTER12-NETWORKS-UN - Router12 Networks LLC | 512 | — | 2 |
| AS18729US | SHAWMUT - Shawmut Design & Construction | 512 | — | 2 |
| AS397065US | US-NJ - Hillside (Shared Services US) LLC | 512 | — | 2 |
| AS29721US | CSHS-ELSEGUNDO - Cedars-Sinai Health Systems | 512 | — | 2 |
| AS398574US | COMMONWEALTH-CHARTER-ACADEMY - Commonwealth Charter Academy | 512 | — | 2 |
| AS64213US | AS-ERCELITE - ERC Broadband | 512 | 1 | 3 |
| AS40618US | SESAME - Sesame Workshop | 512 | — | 2 |
| AS400411US | CHS - Sisters of Charity Hospital | 512 | — | 1 |
| AS5721US | NDU-NET - National Defense University | 512 | — | 2 |
| AS36768US | KOAT-TV - Hearst-Argyle Television, Inc. | 512 | — | 2 |
| AS18955US | TWEA-AS - Treasury Wine Estates Americas | 512 | — | 1 |
| AS17196US | COD-GE-IL - College of duPage | 512 | — | 1 |
| AS18949US | BARTELL-CORP-INTERNET - Bartell Hotels, A California Limited Partnership | 512 | — | 1 |
| AS18812US | NEWWAVECOMM - New Wave Communications | 512 | — | 2 |
| AS396326US | ASN-WATCO-IPV4-DC - Watco Companies, LLC. | 512 | — | 2 |
| AS401575US | JPPS-01 - Jeff Parrish, Sole Proprietorship | 512 | 256 | 3 |
| AS399295US | STC-01 - Somerset Trust Company | 512 | — | 2 |
| AS33312US | FFBM-0049 - Premier Bank | 512 | — | 1 |
| AS27369US | SWEDISH - Swedish Covenant Hospital | 512 | — | 2 |
| AS396359US | MASCOCABINETRY - Cabinetworks Group Michigan, LLC | 512 | — | 2 |
| AS395034US | ZTHERNET - Zthernet, LLC | 512 | — | 2 |
| AS397937US | TGNA-WTHR - TEGNA Inc. | 512 | — | 2 |
| AS21876US | THE-SAVE-MART-COMPANIES - The Save Mart Companies | 512 | — | 2 |
| AS54525US | AGT01 - APPLIED GLOBAL TECHNOLOGIES, LLC | 512 | — | 1 |
| AS397589US | AMERICAN-DREAM-NJ - AMEREAM NJP, LLC | 512 | 65.5K | 2 |
| AS53578US | DISNEY-WDAS-AS - Disney Worldwide Services, Inc. | 512 | — | 2 |
| AS399795US | INFINITY-TECH-KC1 - Infinity Technology Services LLC | 512 | — | 1 |
| AS393483US | YEO-YEO - Yeo & Yeo CPAs & Business Consultants | 512 | — | 2 |
| AS54385US | TOLLESON - City of Tolleson | 512 | — | 2 |
| AS18598US | CEQUINT-INC - Transaction Network Services, Inc. | 512 | — | 2 |
| AS22805US | CNL-FINANCIAL-GROUP - CNL Financial Group Inc. | 512 | — | 2 |
| AS401462US | SUBARU-SIA - Subaru of Indiana Automotive, Inc. | 512 | — | 1 |
| AS394653US | BHBT - Bar Harbor Bank & Trust | 512 | — | 2 |
| AS17321US | LHC-GROUP - LHC Group | 512 | — | 2 |
| AS40106US | OGIL-NA-SF - The Ogilvy Group, LLC | 512 | — | 2 |