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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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 | 3,727 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,328 |
| — |
| — |
| 0 |
| AS19022US | CISP-TOTALAS - CISP | — | — | 0 |
| AS19042US | AKTIONASSOC-DC2-001 - AKTION ASSOCIATES, INCORPORATED | — | — | 0 |
| AS19164US | COGENT-19164 - Cogent Communications, LLC | — | — | 0 |
| AS19322US | THIRDROCKVENTURES - Third Rock Ventures LLC | — | — | 0 |
| AS19438US | PRIME-BROKERAGE - Bank of America, National Association | — | — | 0 |
| AS19496US | SBCASI-AKRON-OH-COVLIL - Wireless Maritime Services, LLC | — | — | 0 |
| AS19522US | ADVANCED-ONLINE - Advanced Graphic Products Inc. | — | — | 0 |
| AS19613US | MICRO-GENERAL - Fidelity National Financial Inc. | — | — | 0 |
| AS19623US | PRICEWATERHOUSECOOPERS-MSO - PriceWaterhouseCoopers, LLP | — | — | 0 |
| AS19673US | LIT - LAKE FOREST COLLEGE | — | — | 0 |
| AS19700US | TONYTHEDEVELOPER - Tony The Developer | — | — | 0 |
| AS19742US | FSUSD - Fairfield-Suisun Unified School District | — | — | 0 |
| AS19759US | REALD-ARIN-ASN - REALD INC. | — | — | 0 |
| AS19785US | SOLUTIONPRO-NET - ARK Data Centers LLC | — | — | 0 |
| AS19807US | ASNBLK-VTLA2 - NTT Global Networks Incorporated | — | — | 0 |
| AS19818US | 67446 - CUNNINGHAM COMMUNICATIONS, INC. | — | — | 0 |
| AS19867US | VOODOO1 - Voodoo.com, Inc | — | — | 0 |
| AS19938US | MOVATE-INC - Movate Inc | — | — | 0 |
| AS19962US | RESERVED-IPADMIN - Level 3 Parent, LLC | — | — | 0 |
| AS20070US | TELNES - Telnes Broadband | — | — | 0 |
| AS20112US | T3COM-20112 - T3 Communications, Inc. | — | — | 0 |
| AS20174US | WU - THE WESTERN UNION COMPANY | — | — | 0 |
| AS20183US | SUNGARDAS-20183 - BroadbandONE, LLC | — | — | 0 |
| AS20265US | FEMSS - Securitas Electronic Security, Inc. | — | — | 0 |
| AS20313US | SMSI - Smith Micro Software, Inc. | — | — | 0 |
| AS20350US | TDS-INTERNET-AS - TDS TELECOM | — | — | 0 |
| AS20428US | GLOWPOINT-AS - Oblong, Inc. | — | — | 0 |
| AS20444US | INSTILL-CORP-AS1 - Instill Corporation | — | — | 0 |
| AS20463US | TRAVELCLICK - TravelCLICK Inc. | — | — | 0 |
| AS21510US | TRISTAR - Tristar Communications | — | — | 0 |
| AS21522US | TWC-21522-STVA - Charter Communications Inc | — | — | 0 |
| AS21550US | THEWORLD-1 - Software Tool & Die, The World | — | — | 0 |
| AS21591US | NSINOC-KC1 - NETSTANDARD INC | — | — | 0 |
| AS21597US | PEOPLESUPPORTCOM - PeopleSupport, Inc. | — | — | 0 |
| AS21638US | PRINCESS-COM - Princess Cruises Lines, Ltd. | — | — | 0 |
| AS21656US | NEX-CORP-US - NEX Services North America, LLC | — | — | 0 |
| AS21697US | AS21697 - AMES CONSTRUCTION INC. | — | — | 0 |
| AS21715US | NSPNET - Nature's Sunshine Products | — | — | 0 |
| AS21845US | SUNGARDAS-21845 - BroadbandONE, LLC | — | — | 0 |
| AS21848US | SUNGARDAS-21848 - BroadbandONE, LLC | — | — | 0 |
| AS21866US | GOTO-OFFICES - Goto Group, Inc. | — | — | 0 |
| AS21927US | PADUCAH-IX - Paducah Internet Exchange Inc. | — | — | 0 |
| AS21940US | FALCONNET-CLT4 - Falcon Internet | — | — | 0 |
| AS21977US | RISE-TX-XNDOO-AS21977 - JAB Wireless, INC. | — | — | 0 |
| AS22000US | AAIMED - ALLIANCE FOR ACADEMIC INTERNAL MEDICINE | — | — | 0 |
| AS22025US | DEMOCRACYDATA - DDC Advocacy | — | — | 0 |