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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 |
| 768 |
| — |
| 3 |
| AS16785US | USANA-INC - USANA Inc | 768 | — | 2 |
| AS401370US | CALYX-NETWORKS - CALYX NETWORKS | 768 | 2 | 5 |
| AS54153US | LACMTA-ASN - Los Angeles County Metropolitan Transportation Authority | 768 | — | 3 |
| AS6924US | STARTRIB - Star Tribune | 768 | — | 3 |
| AS64243US | MPTC - Moraine Park Technical College | 768 | — | 3 |
| AS397535US | WNMU-ASN - Western New Mexico University | 768 | — | 3 |
| AS400346US | APOG-ECKERD - Apogee Telecom Inc. | 768 | — | 2 |
| AS400908US | XSTREAM-CABLE-TV - Videoport IPTV LLC | 768 | — | 3 |
| AS394951US | EDF-RE-DC2 - EDF Renewables, Inc. | 768 | — | 2 |
| AS393248US | NISD-1 - Northside Independent School District | 768 | — | 3 |
| AS18872US | VERITAS - Veritas Technologies LLC | 768 | 1 | 4 |
| AS46733US | X6CNET - x6c | 768 | 2 | 5 |
| AS44965US | CONTACTUAL 8x8 Inc | 768 | — | 3 |
| AS30677US | VALLEY-HEALTH-SYSTEM - Valley Health System | 768 | — | 3 |
| AS34553US | NATHANSALES - Packetframe | 768 | 2 | 5 |
| AS30570US | AEPCO-30570 - Arizona Electric Power Cooperative, Inc. | 768 | — | 3 |
| AS13620US | EMBLEMHEALTH - EMBLEMHEALTH SERVICES COMPANY, LLC | 768 | — | 3 |
| AS401846US | SUZKO - SUZKO LLC | 768 | — | 3 |
| AS395290US | PORTOFPORTLAND - Port of Portland | 768 | — | 3 |
| AS54337US | BW-LYNVA - BWX Technologies, Inc. | 768 | — | 3 |
| AS33645US | ODYSSEYRE - ODYSSEY RE HOLDINGS CORP | 768 | — | 3 |
| AS31883US | TIM-2300 - Thornburg Investment Management Inc. | 768 | — | 3 |
| AS399301US | BANKSITESERVICES - The Forms Group | 768 | — | 3 |
| AS36134US | POOLCORP - Pool Corporation | 768 | — | 3 |
| AS54686US | AS54686-CFBROADBAND - Central Florida Broadband | 768 | 256 | 3 |
| AS398026US | INDIANAPOLIS-AIRPORT-AUTHORITY - Indianapolis Airport Authority | 768 | — | 3 |
| AS11369US | STONEX - StoneX Group Inc. | 768 | — | 3 |
| AS40124US | AS-CHARGED - QuickMeg Inc | 768 | — | 3 |
| AS63073US | UT-MAIN - The University of Tampa | 768 | — | 3 |
| AS40457US | NASCAR-ASN - NASCAR Holdings, LLC | 768 | — | 3 |
| AS397056US | AGWORKS - AgWorks, LLC | 768 | — | 3 |
| AS15073US | BSC-BRANCHOFFICE02 - Blue Shield of California | 768 | — | 3 |
| AS63317US | GREENVILLECOUNTYSC - Greenville County | 768 | — | 3 |
| AS398434US | INTERNET-314 - Internet 3.14 | 768 | — | 3 |
| AS55251US | TAXHAWK-AS - TaxHawk, Inc. | 768 | — | 3 |
| AS394933US | FIVERIVERSIT - Five Rivers IT, Inc. | 768 | — | 3 |
| AS7868US | DATA-LIFE - Data Life Associates, Inc. | 768 | — | 2 |
| AS400289US | AS-MFWIRELESS - MFWireless | 768 | 65.5K | 4 |
| AS23097US | COHEN-STEERS - COHEN & STEERS CAPITAL MGMT., INC. | 768 | — | 3 |
| AS393471US | FOS-HOSTING - FOS Hosting, LLC | 768 | — | 3 |
| AS16737US | STABLEHOST - Nerdie Networks LLC | 768 | — | 3 |
| AS54099US | CITYOFSAVANNAH - City of Savannah | 768 | — | 3 |
| AS53596US | CBOE - Cboe | 768 | — | 3 |
| AS11012US | DDC-AS - The Digital Design Company | 768 | — | 2 |
| AS46153US | LOUISVILLE-JEFFERSON-COUNTY-METRO-GOVERNMENT - Louisville Jefferson County Metro Government | 768 | — | 2 |
| AS26446US | AS-OSTRA - Ostra Cybersecurity, Inc. | 768 | — | 2 |