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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) | 227.4M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 217.9M | 25,247 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,322 |
| 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.
32,189 autonomous systems registered to United States. Click an AS for detail.
| 72.9M |
| 229 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,901 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,010 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,222 |
| 2.3K |
| — |
| 9 |
| AS10819US | ICC - IFWORLD Inc. | 2.3K | — | 2 |
| AS23172US | PENTAGONFEDERALCU - Pentagon Federal Credit Union | 2.3K | — | 8 |
| AS395848US | KING-NETWORKS - King Networks LLC | 2.3K | — | 9 |
| AS22511US | PRESIDIONS - Presidio Networked Solutions LLC | 2.3K | — | 9 |
| AS23038US | BRDBND-USER-GRP - City of Hillsboro | 2.3K | — | 2 |
| AS20260US | SAWTEL-UC - Sawtel, Inc | 2.3K | — | 6 |
| AS393359US | SSFCU-AS-2 - Security Service Federal Credit Union | 2.3K | — | 5 |
| AS54246US | AFNI-INTERNET - AFNI, Inc. | 2.3K | — | 3 |
| AS23152US | NDC-INTERNET1-AS - Nissan North America, Inc. | 2.3K | — | 9 |
| AS33569US | ALLHOSTSHOP - ALLHOSTSHOP.COM | 2.3K | — | 9 |
| AS21785US | REDHAT-3 - Red Hat, Inc. | 2.3K | 1 | 3 |
| AS399234US | EQA-WAN-01 - Philip Morris USA | 2.3K | — | 8 |
| AS22607US | DES-MOINES-EDU - Des Moines University | 2.3K | — | 3 |
| AS32840US | 32840 - Cherokee Cablevision | 2.3K | — | 6 |
| AS394613US | CITY-OF-GRIFFIN - City of Griffin | 2.3K | — | 2 |
| AS19153US | UTMARTIN - The University of Tennessee at Martin | 2.3K | — | 4 |
| AS399347US | SIMPLE-FIBER-OPE - Simple Fiber, LLC | 2.3K | 4.1K | 9 |
| AS54309US | NEGU - NEGU | 2.3K | 259 | 12 |
| AS23274US | PRICELINE-COM-AS-01 - Priceline.com | 2.3K | — | 7 |
| AS20148US | VANTIVA-CH - Vantiva USA Shared Services Inc. | 2.3K | 2 | 11 |
| AS395810US | HCAS-2 - Hanson Communications, Inc. | 2.3K | — | 2 |
| AS19311US | STEWART-1 - Stewart Title | 2.3K | — | 9 |
| AS26141US | CUBEPATH - CubePath | 2.3K | 69.6K | 14 |
| AS17176US | BCG-NETWORKS - BCG Networks LLC | 2.3K | 256 | 10 |
| AS54735US | TTGSI - Peraton Labs Inc. | 2.3K | — | 5 |
| AS399305US | WABTEC-ASN-WCS - Westinghouse Air Brake Technologies Corporation | 2.3K | — | 5 |
| AS34939US | nextdns NextDNS, Inc. | 2.3K | 65.5K | 11 |
| AS393857US | TS-419 - Premier Satellite | 2.3K | 4.1K | 9 |
| AS6649US | HYAK - Hyak | 2.3K | 65.5K | 6 |
| AS19796US | SHUBERT - Shubert Organization, Inc. | 2.3K | — | 9 |
| AS986US | KINGSBURGMEDIA-01 - Kingsburg Media Foundation | 2.3K | — | 3 |
| AS30211US | GWI-WW-ASN - Gallatin Wireless Internet, LLC | 2.3K | 65.5K | 6 |
| AS55113US | UNIVERSITY-OF-REDLANDS - University of Redlands | 2.3K | — | 5 |
| AS401008US | IONLINE-ISP-US - iONLINE | 2.3K | 65.5K | 6 |
| AS3954US | DNIC-AS-03954 - United States Department of Defense (DoD) | 2.3K | — | 8 |
| AS20404US | AS20404 - NRG Energy, Inc. | 2.3K | — | 7 |
| AS399728US | PFOUNDATION - P Foundation | 2.3K | 10 | 16 |
| AS19460US | SUTH - Sutherland Global Services, Inc. | 2.3K | — | 8 |
| AS53559US | ANONYMIZER - KST Networks | 2.3K | — | 9 |
| AS400767US | TX-FIBER - TX Fiber | 2.3K | 65.5K | 7 |
| AS11281US | ROBLOX-CORPORATE - Roblox | 2.3K | 2 | 11 |
| AS1611US | MABELTEL - Mabel Cooperative Telephone Company | 2.3K | — | 4 |
| AS400758US | CORTAVIS - CORTAVIS | 2.3K | — | 6 |
| AS26400US | IAMOTEL - IAMO Communications Inc | 2.3K | — | 8 |
| AS400639US | ORB-ASN-ME-1 - Outer Reach Broadband LLC | 2.3K | — | 3 |
| AS395512US | GLOBAL2016 - GLOBALHOSTINGSOLUTIONS INC | 2.3K | 65.5K | 6 |