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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 | 3,140 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,178 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,241 |
| 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 | 373 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,667 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,946 |
| AS701US | UUNET - Verizon Business | 43.6M | 999 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,371 |
| 768 |
| — |
| 3 |
| AS40916US | EVALSE - Evalse, LLC | 768 | 3 | 6 |
| AS27548US | USAN-AS-A - United States Advanced Network Inc. | 768 | — | 3 |
| AS30677US | VALLEY-HEALTH-SYSTEM - Valley Health System | 768 | — | 3 |
| AS40892US | EFTSOURCE2008 - EFT Source, Inc. | 768 | — | 3 |
| AS54013US | VARONIS-US - Varonis Systems, Inc. | 768 | — | 3 |
| AS40731US | LATIN-IP - Latin IP LLC | 768 | — | 3 |
| AS395823US | DOOF - doof.net | 768 | 4.1K | 6 |
| AS19214US | CENTAURI-COMMUNICATIONS-COM - Centauri Communications | 768 | 65.5K | 3 |
| AS11128US | BERRY-2-ASN - Berry College | 768 | — | 3 |
| AS26976US | LIZ-CLAIBORNE-INC - Kate Spade Holdings LLC | 768 | — | 3 |
| AS17240US | CLASSMATES-1 - PeopleConnect, Inc. | 768 | — | 3 |
| AS44965US | CONTACTUAL 8x8 Inc | 768 | — | 3 |
| AS64296US | ONRADINC - Onrad, Inc. | 768 | — | 2 |
| AS11470US | RSNA-ASN - Radiological Society of North America | 768 | — | 3 |
| AS393251US | FRANCIS-MARION-UNIVERSITY - Francis Marion University | 768 | — | 2 |
| AS33252US | BASSPRO-AS - Bass Pro, LLC. | 768 | — | 3 |
| AS19161US | APOG-UNCC-NORTH - Apogee Telecom Inc. | 768 | — | 2 |
| AS14058US | PCT-AS01 - PointClick Technologies, LLC | 768 | 4.1K | 3 |
| AS54203US | NETPROTECT-SP - Strong Technology, LLC. | 768 | 256 | 4 |
| AS399997US | ARCONIC-CORP - Arconic | 768 | — | 3 |
| AS32374US | NUCLEARFALLOUT-LAX - Nuclearfallout Enterprises, Inc. | 768 | 8.2K | 5 |
| AS401605US | WEB-HOST-MOST-ASN-1 - Web Host Most, LLC | 768 | 3.1K | 6 |
| AS395290US | PORTOFPORTLAND - Port of Portland | 768 | — | 3 |
| AS36852US | SERVIT - SERVIT, INC. | 768 | — | 2 |
| AS393471US | FOS-HOSTING - FOS Hosting, LLC | 768 | — | 3 |
| AS25821US | PRISEDA-NET - Priseda LLC | 768 | — | 3 |
| AS398878US | S4-PROD-INTERNET-WEST01 - Merchant-Link, LLC | 768 | — | 3 |
| AS11247US | HONEYWELL-AEROSPACE - Honeywell International, Inc. | 768 | — | 3 |
| AS400980US | DANDBFIBER - D and B Broadband, LLC | 768 | — | 3 |
| AS23472US | SONICWALL-BGP - SonicWALL, Inc. | 768 | — | 3 |
| AS63454US | SHM-AS-63454 - Summit Health Management, LLC | 768 | — | 3 |
| AS3557US | ISC-AS - Internet Systems Consortium, Inc. | 768 | 3 | 4 |
| AS11875US | WILLIAM-HERRIN - William Herrin, Sole Proprietorship | 768 | 16 | 3 |
| AS393513US | AS-SYNAPT - Synaptics Incorporated | 768 | — | 3 |
| AS7996US | VSCO - Victoria's Secret | 768 | — | 3 |
| AS32904US | KAJEET-ARTERRA-OTARRIS - Arterra Mobility | 768 | — | 3 |
| AS54686US | AS54686-CFBROADBAND - Central Florida Broadband | 768 | 256 | 3 |
| AS54790US | SHARECARE - Sharecare, Inc. | 768 | — | 3 |
| AS25898US | FULL-SAIL-INC - Full Sail, Inc. | 768 | — | 3 |
| AS16785US | USANA-INC - USANA Inc | 768 | — | 2 |
| AS20176US | FNNI-AS20176 - First National Bank of Omaha | 768 | — | 3 |
| AS16868US | PRAXAIR-INC - Linde Inc. | 768 | — | 2 |
| AS30620US | CO-DATACENTER - APPLIED SYSTEMS, INC | 768 | — | 3 |
| AS29781US | ECPI-AS - ECPI Colleges, Inc. | 768 | — | 2 |
| AS10494US | AAI - Rodney Grimes, Sole Proprietorship | 768 | 4.1K | 3 |
| AS20408US | NTTA - North Texas Tollway Authority | 768 | — | 3 |