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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 | 23,695 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,143 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 | 3,820 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,994 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,278 |
| — |
| — |
| 0 |
| AS7208US | MEGANET - MegaNet | — | — | 0 |
| AS7069US | NORTH-AMERICAN-INT - North American Internet, Inc. | — | — | 0 |
| AS7113US | NFIC-AS - New Frontiers Information Corp. | — | — | 0 |
| AS6990US | ONE-O - One-O, Inc. | — | — | 0 |
| AS51856US | SRSP-4-51856 - Aubrey Rose | — | 16 | 1 |
| AS8120US | BESTWEB - FirstLight Fiber, Inc. | — | — | 0 |
| AS10451US | WARPDRIVE - Warpdrive Networks | — | — | 0 |
| AS10270US | NECROMIUM - Idex Technologies | — | — | 0 |
| AS8170US | MICROAGE - MicroAge Computer Centers, Inc. | — | — | 0 |
| AS8050US | DNC-AS - Direct NET Communications | — | — | 0 |
| AS7427US | MKTSYS - Market Systems International | — | — | 0 |
| AS8028US | PROAXIS - ProAxis Communications, Inc. | — | — | 0 |
| AS401898US | BLUE-STASIS - Blue Stasis Technology LLC | — | 1 | 1 |
| AS5634US | MILESTONE - Milestone Research and Development Labs Inc. | — | — | 0 |
| AS6031US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5912US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5897US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5704US | CARIBE-NET - Caribbean Internet Service, Corp. | — | — | 0 |
| AS5725US | XO - Verizon Business | — | — | 0 |
| AS5689US | HOOSIERNET - HoosierNet, Inc. | — | — | 0 |
| AS401106US | TECHIES365 - Techies365 | — | 3 | 3 |
| AS6418US | SATELNET-AS - SatelNet Communications, Inc. | — | — | 0 |
| AS213458US | VIONET - Digital Goods LLC | — | — | 0 |
| AS4950US | ASN-SPRN-NYSERNET1 - SPRINT, Business Serices Group | — | — | 0 |
| AS4942US | B-NET - B-Net Technologies | — | — | 0 |
| AS4360US | AGNES-SCOTT - Agnes Scott College | — | — | 0 |
| AS4487US | EMTF-UPW - Air Force Systems Networking | — | — | 0 |
| AS4291US | CENTURYLINK-QC-MOE-HELENA - CenturyLink Communications, LLC | — | — | 0 |
| AS11006US | HRT-SCS - HRTec | — | 65.7K | 2 |
| AS394618US | NEXTGEAR-CAPITAL-EXPEDIENT - NextGear Capital, Inc. | — | — | 0 |
| AS393691US | FORUM-FARGO-NOC - Forum Communications Company | — | — | 0 |
| AS393480US | KALTURA - Kaltura Inc | — | — | 0 |
| AS393346US | NJ-COLL-INET - City National Bank | — | — | 0 |
| AS200502US | DMITRY-ILYEVSKIY DMITRY ILYEVSKIY | — | — | 0 |
| AS7159US | NTTCNET - New Trier Technology Cooperative | — | — | 0 |
| AS198963US | LANGE-AS Colten Lange | — | — | 0 |
| AS399980US | RFPT - RFPT COMPANY LLC | — | 258 | 3 |
| AS394686US | CL-200 - Clearent LLC | — | — | 0 |
| AS395004US | MOTIVACTION-ASN - MotivAction, LLC | — | — | 0 |
| AS394848US | PULSE-2 - Pulse | — | — | 0 |
| AS200556US | CADY-AS Ethan Cady | — | 259 | 4 |
| AS394487US | LTDBROADBAND-WATERTOWN - LTD Broadband LLC | — | — | 0 |
| AS2010US | INFONET6 - INFONET Services Corporation | — | 1 | 1 |
| AS394416US | AVANADE - Avanade Inc | — | — | 0 |
| AS33760US | UWUNET - Ashton Holmes, Sole Proprietorship | — | 5 | 5 |
| AS54144US | EI-SERVICES - Shawn Kleinart Consulting | — | — | 0 |