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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 | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,661 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,361 |
| 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.
32,363 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,911 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,046 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,490 |
| TYLERTECH-NIC1 - Tyler Technologies, Inc. |
| 2.3K |
| — |
| 8 |
| AS26663US | BANTELUSACORP-01 - BANTEL-USA CORP | 2.3K | — | 9 |
| AS13607US | INTUITIVE-ENG - Intuitive Surgical Operations, Inc. | 2.3K | 3 | 12 |
| AS30459US | AS-SLHC - St. Luke's Roosevelt Hospital Center | 2.3K | — | 8 |
| AS397019US | ROCKETCONNECT - Rocket Connect LLC | 2.3K | 81.9K | 10 |
| AS22134US | PETSMART - PetSmart LLC | 2.3K | — | 4 |
| AS19580US | ART-LLC - A.R.T. Advisors, LLC | 2.3K | — | 9 |
| AS2154US | HPINC - HP Inc. | 2.3K | — | 6 |
| AS11187US | RICHWEB - Richweb, Inc | 2.3K | 4.1K | 3 |
| AS19720US | CABLEVISION-CORP - Cablevision Systems Corp. | 2.3K | — | 9 |
| AS14569US | INTELLIPOP - Intellipop, LLC | 2.3K | — | 9 |
| AS53503US | NEARFIELDNETWORKS - Global Internet eXchange | 2.3K | — | 9 |
| AS400830US | BAYFIELD-WIRELESS - Bayfield Wireless | 2.3K | 17 | 26 |
| AS14352US | SSUITES-AS1 - ERP Suites | 2.3K | — | 9 |
| AS32382US | ATOS-CARROLLTON - Atos IT Solutions and Services Inc | 2.3K | — | 9 |
| AS398496US | EAGLEZIP - EagleZip.com LLC | 2.3K | — | 7 |
| AS7010US | DACSIX-NORTH - DACS-IX | 2.3K | 532.7K | 15 |
| AS46456US | TELESPACE-ASN - Telespace, LLC | 2.3K | — | 5 |
| AS4503US | EGINTERLINK - Grady Memorial Hospital | 2.3K | — | 9 |
| AS398020US | HICOUNTRYNET - HICOUNTRYNET, LLC | 2.3K | 32 | 8 |
| AS395245US | LCWA - La Canada Wireless Association | 2.3K | 65.5K | 8 |
| AS32945US | TECONECTAMOS - Tekwerks Internet | 2.3K | 4.1K | 8 |
| AS399761US | STREAMIT-001 - Stream IT Networks LLC | 2.3K | 4.1K | 7 |
| AS13816US | VIGTECHAS01 - Vigilant Technologies | 2.3K | — | 5 |
| AS25692US | AEGISINFOSYS - AEGIS INFORMATION SYSTEMS INC | 2.3K | — | 4 |
| AS154859US | KINETLLC-AS-US - Kinet LLC | 2.3K | 16 | 8 |
| AS40001US | STROUD-MEDIA-NETWORKS - Gravel Hill Holdings | 2.3K | — | 5 |
| AS19065US | LRS - Levi, Ray & Shoup, Inc. | 2.3K | 256 | 10 |
| AS62560US | HOSTED-AMERICA - Hosted America | 2.3K | — | 8 |
| AS18675US | VS-BYNCTR - Virtual Systems | 2.3K | — | 6 |
| AS403001US | MIRAGE-GLOBAL-TECH - Mirage | 2.3K | 297 | 18 |
| AS5777US | RIBBON - Ribbon Communications Operating Company, Inc. | 2.3K | — | 9 |
| AS12110US | AS-INTER - Internex Inc. | 2.3K | 69.6K | 24 |
| AS54819US | NETDIVERSE-A - NetDiverse, LLC | 2.3K | — | 6 |
| AS22215US | BHSU - Black Hills State University | 2.3K | — | 8 |
| AS396004US | INTERCEPT - TIGER COMPUTER CONSULTING, LLC | 2.3K | — | 9 |
| AS63066US | 7HOOPNETWORK - 7Hoop Network Telecom, LLC | 2.3K | 6.4K | 9 |
| AS13652US | HORIZON-BLUE-CROSS-BLUE-SHIELD-OF-NJ - HORIZON BLUE CROSS BLUE SHIELD OF NJ | 2.3K | — | 9 |
| AS6405US | AIN - American Information Network | 2.3K | — | 5 |
| AS396936US | HTH2 - HTH | 2.3K | — | 9 |
| AS63129US | AIRRABBIT-NETWORK - AirRabbit, LLC | 2.3K | 114.7K | 37 |
| AS15284US | DSC - Digital Service Consultants, Inc. | 2.3K | — | 2 |
| AS46617US | WEBMD-IDC2-AS - WebMD, LLC | 2.3K | — | 2 |
| AS22811US | WSGR - Wilson, Sonsini, Goodrich & Rosati, Professional Corporation | 2.3K | — | 3 |
| AS30022US | GIA-CARLSBAD - Gemological Institute of America | 2.3K | — | 2 |
| AS33660US | CMCS - Comcast Cable Communications, LLC | 2.3K | 49 | 58 |
| AS13617US | SYNTAX-NC - Syntax Systems USA, LP | 2.3K | — | 6 |