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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 | 3,135 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,254 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,267 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,726 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,965 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,346 |
| — |
| — |
| 0 |
| AS19805US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | — | — | 0 |
| AS19811US | ELEMICA-PACOLO - ELEMICA, Inc. | — | — | 0 |
| AS19998US | TA-CHEN-INTERNATIONAL-INC - TA CHEN INTERNATIONAL, INC. | — | — | 0 |
| AS20025US | EVERESTBROADBAND-NET - Everest BBN, Inc. | — | — | 0 |
| AS20083US | PSC-PUBLIC-ASN - PACIFIC SOUTHWEST CONTAINER, LLC | — | — | 0 |
| AS20152US | TEXAS-RANGERS - Rangers Baseball LLC | — | — | 0 |
| AS20154US | VISTABEAM - VISTABEAM | — | — | 0 |
| AS20186US | THOMSON-REUTERS - Thomson Reuters U.S. LLC | — | — | 0 |
| AS20195US | SPARKLV-1 - Sparkplug Las Vegas, Inc. | — | — | 0 |
| AS20206US | IXISP - Fiberifi | — | — | 0 |
| AS20212US | HISNET - Hanson Information Systems, Inc. / Family Net | — | — | 0 |
| AS20346US | SOC-OF-ACTUARIES1 - Society of Actuaries | — | — | 0 |
| AS20351US | PARTS123 - Connect Marketing, Inc. | — | — | 0 |
| AS20379US | NET-BAKER - Baker College | — | — | 0 |
| AS20405US | EPLICA-AS - Eplica, Inc. | — | — | 0 |
| AS20409US | AUTONATION-ASP2 - Autonation, Inc | — | — | 0 |
| AS20424US | ICE - Intercontinental Exchange, Inc. | — | — | 0 |
| AS21505US | MMNET - Multi Media LLC | — | — | 0 |
| AS21535US | MCGSE - Management Compensation Group/Southeast, LLC | — | — | 0 |
| AS21661US | NEEBA - Neeba, Inc. | — | — | 0 |
| AS21685US | RFIH-NET2 - Retail Finance International Holdings, Inc. | — | — | 0 |
| AS21731US | HOMEDICS-COMMERCE - HoMedics USA Inc | — | — | 0 |
| AS21841US | AIS-NY-IPARK - Corelogic Solutions, LLC | — | — | 0 |
| AS21847US | SUNGARDAS-21847 - BroadbandONE, LLC | — | — | 0 |
| AS21956US | SOLON-BOARD-OF-EDUCATION - Solon Board of Education | — | — | 0 |
| AS21994US | UBSPRIMEBROKERAGE - UBS AG | — | — | 0 |
| AS22029US | FCS-PUBLIC-BGP-1 - First Corporate Sedans, Inc | — | — | 0 |
| AS22033US | TUT-AS2 - Total Uptime Technologies, LLC | — | — | 0 |
| AS22044US | LADDERCAPITALFINANCELLC - Ladder Capital Finance LLC | — | — | 0 |
| AS22287US | THUMB-CELLULAR - THUMB CELLULAR, LLC | — | — | 0 |
| AS22380US | PULLMAN-COMLEY-LLC - Pullman & Comley, LLC | — | — | 0 |
| AS22412US | ADVGLOBAL - ADVANCED GLOBAL NETWORKS, INC. | — | — | 0 |
| AS22428US | GOLDEN-HOUR-01 - 2024 Rayford Road, L.P. | — | — | 0 |
| AS22488US | CENGAGE-NYALB - Cengage Learning, Inc. | — | — | 0 |
| AS22514US | HITACHI-HIGHTECH - Hitachi High -Tech America | — | — | 0 |
| AS22556US | BLACKBOARD - Blackboard Inc. | — | — | 0 |
| AS22562US | CSC-IGN-EMEA-AS22562 - DXC US Latin America Corporation | — | — | 0 |
| AS22589US | QCHOL-KC - QC Holdings, Inc. | — | — | 0 |
| AS22655US | AGDATACOMPANIES - AGDATA, LP | — | — | 0 |
| AS22737US | SCHENKERUSA - Schenker Inc. | — | — | 0 |
| AS22892US | AIRSPEED - Air Speed Internet | — | — | 0 |
| AS22930US | MARY-BALDWIN-COLLEGE - Mary Baldwin College | — | — | 0 |
| AS23056US | NRT-SARASOTA - NRT, Incorportated | — | — | 0 |
| AS23071US | HUNTING-INTL - HUNTING ENERGY SERVICES, LLC | — | — | 0 |
| AS23164US | LLNW-SFO - Limelight Networks, Inc. | — | — | 0 |
| AS23319US | CHROME-DATA-SOLUTIONS - Chrome Data Solutions, LP | — | — | 0 |