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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 | 21,186 |
| 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 | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,373 |
| MMU-53-AS-NET - Mount Mercy University |
| 256 |
| 1 |
| 2 |
| AS36746US | SYMQUEST-SB-NET - SymQuest Group. Inc | 256 | — | 1 |
| AS36186US | 3DS-AS02 - 3ds Communications LLC | 256 | 256 | 2 |
| AS3728US | ONR-ASN - LightEdge Solutions | 256 | — | 1 |
| AS393538US | ARLP-OPSTECH - Alliance Coal, LLC | 256 | — | 1 |
| AS55262US | ANTHEMCONNECT-LA2 - Anthem Broadband | 256 | 65.5K | 2 |
| AS14163US | SHEARMAN - Shearman & Sterling | 256 | — | 1 |
| AS16834US | WEBSTER-BANK - Webster Bank, National Association | 256 | — | 1 |
| AS16590US | DGF-SERVICES - DGF Services, LLC | 256 | — | 1 |
| AS399603US | APPSYNERGY - APPSYNERGY INC | 256 | — | 1 |
| AS22574US | COCONET - CocoNet Corporation | 256 | — | 1 |
| AS54279US | SMT - SportsMEDIA Technology Corporation | 256 | — | 1 |
| AS395548US | HFCU-NET - Hughes Federal Credit Union | 256 | — | 1 |
| AS46613US | CV-RI-HQ - COLLETTE VACATIONS | 256 | — | 1 |
| AS216044US | Terranode_LLC Terranode LLC | 256 | 3 | 4 |
| AS399981US | CRST-THE-TRANSPORTATION-SOLUTION - CRST THE TRANSPORTATION SOLUTION | 256 | — | 1 |
| AS400228US | STARLIGHTFIBER - Starlight Fiber Ltd | 256 | 8 | 2 |
| AS22875US | LIFEU - Life University, INC. | 256 | — | 1 |
| AS393377US | JJKA-PUB1 - J. J. Keller & Associates, Inc. | 256 | — | 1 |
| AS398099US | BVFNET - Bay View Funding | 256 | 16 | 2 |
| AS395694US | GSO-INTERNET - Qorvo US, Inc | 256 | — | 1 |
| AS399022US | ALLEGIANCE-01 - ALLEGIANCE BENEFIT PLAN MANAGEMENT, INC | 256 | — | 1 |
| AS395229US | TEMPLE-COLLEGE-TX - Temple College | 256 | — | 1 |
| AS393452US | FSST - Flandreau Santee Sioux Tribe | 256 | — | 1 |
| AS18445US | POLYONE-CORPORATION - PolyOne Corporation | 256 | — | 1 |
| AS35966US | AEW-AS - AEW Capital Management LP | 256 | — | 1 |
| AS36862US | AS36862 - Green Mountain Technology, LLC | 256 | — | 1 |
| AS63146US | WC-28 - Wolf Creek Nuclear Operating Corporation | 256 | — | 1 |
| AS22991US | SPE-199-26-202 - SOCIETY OF PETROLEUM ENGINEERS (SPE), INC. | 256 | — | 1 |
| AS10257US | TANGOE-PROD-1 - Tangoe US, Inc. | 256 | — | 1 |
| AS33233US | OECU-BGP1 - Oklahoma Employees Credit Union | 256 | — | 1 |
| AS393267US | ATCC - American Type Culture Collection | 256 | — | 1 |
| AS13374US | DYC-DYU - D'Youville College | 256 | — | 1 |
| AS11874US | COLUMBUSREGIONALHOSPIAL - Columbus Regional Hospital | 256 | — | 1 |
| AS36442US | MERCURY HEALTHCARE - WebMD, LLC | 256 | — | 1 |
| AS11603US | WATERMARK - Watermark Estate Management Services, LLC | 256 | — | 1 |
| AS16998US | ZEUSINC-AS - Zeus Industrial Products, Inc. | 256 | — | 1 |
| AS399627US | CITY-OF-MOUNTAIN-VIEW - City of Mountain View | 256 | — | 1 |
| AS63464US | SUNSASN - THE PHOENIX SUNS | 256 | — | 1 |
| AS396051US | PABOE - Perth Amboy Board of Education | 256 | — | 1 |
| AS400642US | NX-EDGE-NETWORK-LLC - NX Edge Network LLC | 256 | 1 | 2 |
| AS394768US | LTS-IL01 - Links Technology Solutions, Inc. | 256 | — | 1 |
| AS399451US | MSDLT-ASN-01 - METROPOLITAN SCHOOL DISTRICT OF LAWRENCE TOWNSHIP | 256 | — | 1 |
| AS400505US | HARRIS-AS-02 - HARRIS & HARRIS, LTD. | 256 | — | 1 |
| AS46803US | GTCR-300NL-1 - GTCR Golder Rauner, LLC | 256 | — | 1 |
| AS408US | AFCONC-BLOCK1-AS - Air Force Systems Networking | 256 | — | 1 |
| AS402193US | UINT8 - UInt8 | 256 | 3 | 4 |