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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 | 21,160 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 4,372 |
| 256 |
| — |
| 1 |
| AS15155US | SOUTHERN-FARM-BUREAU-LIFE-INSURANCE - Southern Farm Bureau Life Insurance Company | 256 | — | 1 |
| AS397632US | MOHAVEC-COUNTY - Mohave County AZ | 256 | — | 1 |
| AS401642US | CARVERAUTO - Carver Automation Corporation | 256 | 1 | 2 |
| AS399424US | RELEASEPOINT1 - Releasepoint | 256 | — | 1 |
| AS46181US | MAXXSOUTH-BROADBAND - BCI Mississippi Broadband,LLC | 256 | — | 1 |
| AS32447US | MARTI-AS - MARTIN RESOURCE MANAGEMENT CORP. | 256 | — | 1 |
| AS46928US | ACADEMY-SPORTS-OUTDOORS - Academy Sports + Outdoors | 256 | — | 1 |
| AS40655US | WINTHROP-AS - Winthrop & Weinstine, P.A. | 256 | — | 1 |
| AS36311US | CCU-ATT-01 - Capital Credit Union | 256 | — | 1 |
| AS394878US | OLDREPUBLICTITLEASOP2 - OLD REPUBLIC NATIONAL TITLE INSURANCE CO. | 256 | — | 1 |
| AS18698US | IAC-NYC-AS01 - Icahn Associates Corp. | 256 | — | 1 |
| AS54544US | WM-549-01 - Woodward McCoach Inc. | 256 | 1 | 2 |
| AS20261US | MSA-CORP - Medical Services of America | 256 | — | 1 |
| AS394044US | TERRITORIAL - Bank of Hope | 256 | — | 1 |
| AS20395US | MEDFUSION-LEWISVILLE - Med Fusion, LLC | 256 | — | 1 |
| AS393452US | FSST - Flandreau Santee Sioux Tribe | 256 | — | 1 |
| AS396941US | DRI-RSC - DARDEN CORPORATION | 256 | — | 1 |
| AS399990US | NTT-GLOBAL-DATA-CENTERS-AMERICA-INC - NTT Global Data Centers Americas, INC. | 256 | — | 1 |
| AS13976US | TOPOCEAN-LAX1 - Topocean Consolidation Service (Los Angeles), Inc. | 256 | — | 1 |
| AS16938US | EXCEL-NET-01 - Excelsior College | 256 | — | 1 |
| AS54050US | GPMLIFE - Government Personnel Mutual Life Insurance Company | 256 | — | 1 |
| AS36055US | MARKET-STRATEGIES-INTERNATIONAL - MARKET STRATEGIES | 256 | — | 1 |
| AS393279US | TECHNOMAD-LLC-AS-1 - Technomad, LLC | 256 | — | 1 |
| AS53749US | MWT - Midwest Tape | 256 | — | 1 |
| AS14637US | SBM-ASN - STATER BROS MARKETS | 256 | — | 1 |
| AS400505US | HARRIS-AS-02 - HARRIS & HARRIS, LTD. | 256 | — | 1 |
| AS53642US | CCUSD-301 - Central Community Unit School District 301 | 256 | — | 1 |
| AS33200US | JABIL-AS-SILU-PH - Jabil | 256 | — | 1 |
| AS40721US | PABMC - Pennsylvania House of Representatives BMC | 256 | — | 1 |
| AS399540US | ABSCI-US-001 - AbSci Corporation | 256 | — | 1 |
| AS63458US | KGPTEL - KGP Telecommunications, Inc. | 256 | — | 1 |
| AS30562US | SCARSDALE-SCHOOLS - Scarsdale Schools District | 256 | — | 1 |
| AS22580US | GUARD - GUARD INSURANCE GROUP | 256 | — | 1 |
| AS40137US | AWM-INVESTMENT - AWM Investment Company, Inc. | 256 | — | 1 |
| AS39482US | sfm-hk Supply Frame, Inc. | 256 | — | 1 |
| AS33498US | TALCOTT-RESOLUTION-INSURANCE - Talcott Resolution Life Insurance Company | 256 | — | 1 |
| AS1355US | ABELSONTAYLOR - AbelsonTaylor, Inc. | 256 | — | 1 |
| AS395223US | DIRECTV-ENGINEERING-VPL - DIRECTV, LLC | 256 | — | 1 |
| AS1861US | DISN-PILOTNET7 - RTX BBN Technologies, Inc. | 256 | — | 1 |
| AS399332US | ASJ2SW - J2 Technology LLC | 256 | — | 1 |
| AS19543US | MINTZ-BOS - Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C. | 256 | — | 1 |
| AS397266US | PAPERLESSPOST - Paperless Inc | 256 | — | 1 |
| AS32602US | CORP-HDQTRS - ROI Solutions, LLC | 256 | — | 1 |
| AS400713US | MAXIM-STAFFING - Amergis Healthcare Staffing, Inc. | 256 | — | 1 |
| AS69US | UPENN-NETWORK-LAB - University of Pennsylvania | 256 | — | 1 |
| AS7932US | NUMERIX - Numerix | 256 | — | 1 |