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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 | 24,555 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,303 |
| 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.
32,168 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| 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 | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 994 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,354 |
| 512 |
| — |
| 1 |
| AS13466US | MUZAK-AS - Muzak, LLC | 512 | — | 2 |
| AS394916US | PHLAIRPORT - Philadelphia International Airport | 512 | — | 2 |
| AS400135US | JEDUNN - JE DUNN CONSTRUCTION COMPANY | 512 | — | 2 |
| AS396369US | CITYOFLUBBOCKTX - City of Lubbock | 512 | — | 2 |
| AS398003US | TGNA-WOI - TEGNA Inc. | 512 | — | 2 |
| AS397259US | PIRATEL-LA1 - Piratel LLC | 512 | — | 2 |
| AS19209US | GMO-BOSTON - Grantham, Mayo, VanOtterloo & Co. LLC | 512 | — | 2 |
| AS397691US | CGMUS - CompuGroup Medical Inc. | 512 | — | 2 |
| AS400701US | NCCB-COOP - National Broadband Coop | 512 | 4.1K | 2 |
| AS395633US | WSU-EVT-AS - Washington State University | 512 | — | 2 |
| AS11361US | BOSCOVS - Boscov's Department Store, LLC | 512 | — | 2 |
| AS54957US | PVAL-ASN1 - Parallax Volatility Advisers LLC | 512 | — | 2 |
| AS19843US | PROSPERMARKETPLACE - Prosper Marketplace, Inc | 512 | 2 | 4 |
| AS22582US | LUMINEX - Luminex Corporation | 512 | — | 2 |
| AS16777US | NET-PROVPHP - Providence Health Plan | 512 | — | 2 |
| AS395252US | STAMFORD-HEALTH - Stamford Hospital | 512 | — | 2 |
| AS20367US | CITY-OF-STCLOUD-FL - CITY OF ST. CLOUD | 512 | — | 2 |
| AS26402US | SANTABARBARACITY - City of Santa Barbara | 512 | 2 | 4 |
| AS26283US | SFCU-AS1 - SchoolsFirst Federal Credit Union | 512 | — | 2 |
| AS18971US | BCUS - BARCLAYS FINANCIAL CORP. | 512 | — | 2 |
| AS398459US | ROGUECU-ORG-01 - Rogue Credit Union | 512 | — | 2 |
| AS22377US | ATSOL - American Traffic Solutions, Inc | 512 | — | 2 |
| AS62722US | CSF-ASN-01 - Central States Southeast and Southwest Areas Health and Welfare and Pension Funds | 512 | — | 2 |
| AS397012US | OXYAHGC-01 - oXya Corporation | 512 | — | 1 |
| AS13671US | VRIS-AS-BLOCK - Verizon Business | 512 | — | 2 |
| AS19251US | NEPGROUPINC - NEP Group, Inc. | 512 | — | 2 |
| AS23526US | HALFMOONINN-GUEST-INTERNET - Humphreys Half Moon Inn & Suites | 512 | — | 1 |
| AS36811US | WIZTECH-INTERNET - Wiztech Internet | 512 | 1 | 3 |
| AS22392US | NGS-MOE - National Geographic Society | 512 | — | 2 |
| AS395824US | BEPCOLP - Bepco, L.P. | 512 | — | 2 |
| AS33411US | BRIGHTPATTERNSC - Bright Pattern, Inc | 512 | — | 2 |
| AS399257US | INCOMM-NET4 - InComm | 512 | — | 2 |
| AS395324US | NETBLK-CBOCS-HO-NET - Cracker Barrel Old Country Store, Inc. | 512 | — | 2 |
| AS402151US | INFINIT-01 - Infinite Portal LLC | 512 | — | 1 |
| AS26304US | COBORNS-PUB - Coborn's Inc | 512 | — | 2 |
| AS53710US | OWENS-CORNING - Owens-Corning | 512 | 8 | 2 |
| AS393618US | VCT - Vision Concept Technology, LLC | 512 | — | 2 |
| AS32610US | GLOBAL-AS - Global Companies LLC | 512 | — | 2 |
| AS18679US | I4A-NETWORK - internet4associations | 512 | — | 2 |
| AS40735US | HAIB - HudsonAlpha Institute for Biotechnology | 512 | — | 2 |
| AS36796US | WCNX - Waste Connections Inc. | 512 | — | 2 |
| AS994US | AS-VIIRTUE - Viirtue LLC | 512 | — | 2 |
| AS394612US | UPMC-PINNACLE - UPMC | 512 | — | 2 |
| AS397807US | RNT-DS-NET - Reich & Tang Deposit Solutions, LLC | 512 | — | 2 |
| AS394981US | CONTINENTAL-RESOURCES-INC-2 - Continental Resources, Inc. | 512 | — | 2 |
| AS13755US | SPJC - St. Petersburg College | 512 | — | 1 |