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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 | 25,270 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,323 |
| 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.
32,193 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 | 3,900 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.9M | 2,009 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.5M | 4,230 |
| 4.4K |
| — |
| 10 |
| AS33178US | CSINET - Cable Services, Inc. | 4.4K | — | 3 |
| AS15350US | ALGN-ASN-001 - Algona Municipal Utilities | 4.4K | — | 2 |
| AS53352US | HFHS-ASN - Henry Ford Health System | 4.4K | — | 17 |
| AS40606US | QTS-OVP - Quality Technology Services, LLC | 4.4K | 65.5K | 3 |
| AS400146US | DIAMOND-STATE-NETWORKS - DIAMOND STATE NETWORKS, LLC | 4.4K | 65.5K | 4 |
| AS398324US | CENSYS-ARIN-01 - Censys, Inc. | 4.4K | 7 | 24 |
| AS397032US | SPARKED - SPARKED HOST LLC | 4.4K | 5 | 22 |
| AS11512US | PDM - Parsec Data Management Inc. | 4.4K | 4.1K | 12 |
| AS26732US | WAGNER-COLLEGE - Wagner College | 4.4K | — | 2 |
| AS19473US | SWAU - Southwestern Adventist University | 4.4K | 1 | 3 |
| AS14948US | IQVIA-CARLSTADT - IQVIA Holdings Inc | 4.4K | — | 17 |
| AS11086US | PITNEYBOWES-AS-1 - Pitney Bowes Incorporated | 4.4K | — | 15 |
| AS400384US | HOSTINGS-HOUSE-US - Hostings House | 4.4K | — | 14 |
| AS40844US | WINN-DIXIE - Winn-Dixie Stores, Inc. | 4.4K | — | 17 |
| AS397038US | BROWARD-COLLEGE-01 - Broward College | 4.4K | — | 6 |
| AS399938US | BHE-TRANSIT - Berkshire Hathaway Energy Company | 4.4K | — | 7 |
| AS26449US | GENEVAONLINE - Geneva On-Line, Inc. | 4.4K | — | 2 |
| AS215724US | EDGEVANA-AS-RP Edgevana, Inc. | 4.4K | 256 | 18 |
| AS14513US | DMACC - Des Moines Area Community College | 4.4K | 1 | 18 |
| AS21701US | MERATIVE-AS21701 - Merative US L.P. | 4.4K | — | 2 |
| AS14368US | BRAZOS-INTERNET - Brazos Internet | 4.4K | — | 2 |
| AS400704US | NEWCONNECT-01 - NewConnect, LLC | 4.4K | — | 11 |
| AS17098US | BROWNRICE-INTERNET-1 - Brownrice Internet, Inc. | 4.4K | 65.5K | 10 |
| AS6931US | RINGLING - Ringling College of Art and Design | 4.4K | — | 2 |
| AS53597US | HOYOS-CONSULTING-LLC - Hoyos Consulting LLC | 4.4K | 78.3K | 13 |
| AS400933US | GHTC-SOUTH - Citizens Telephone Company of Higginsville, Missouri | 4.4K | — | 12 |
| AS32101US | ASN-KLYS - Kelly Supply Company | 4.4K | — | 17 |
| AS32363US | TOTAL-HIGHSPEED - Total Highspeed LLC | 4.4K | 65.5K | 18 |
| AS396032US | GIGABITNOW-NORCAL - GigabitNow Norcal, LLC | 4.4K | 1 | 10 |
| AS55032US | JAXNET-BH-01 - The Jackson Laboratory | 4.4K | — | 17 |
| AS30359US | AVIDKC - Avid Communications, LLC | 4.4K | — | 4 |
| AS26405US | HDCS - HORIZON DATA SOLUTIONS, LLC | 4.4K | — | 13 |
| AS396955US | INTERNET2-BLEND - Internet2 | 4.4K | 270 | 31 |
| AS401734US | LANTASTIC - LANtastic Internet | 4.4K | 65.5K | 3 |
| AS399200US | AYVA - Ayva | 4.4K | 4.1K | 19 |
| AS21668US | ENET - ElbertonNet | 4.4K | — | 8 |
| AS398536US | FRC-BROADBAND-01 - Farmers Rural Connect, Inc. | 4.4K | — | 7 |
| AS30663US | ISPEED-WIRELESS-INC - ISpeed Wireless Inc., | 4.4K | — | 2 |
| AS53567US | VOLSTATE - VOLstate, LLC | 4.4K | — | 6 |
| AS10411US | ESRI - Environmental Systems Research Institute | 4.4K | — | 17 |
| AS17137US | HAWKEYE-SYNIVERSE - Hawkeye Switching LLC. | 4.4K | — | 7 |
| AS17348US | FULLS-2-AS - FULL SPECTRUM COMMUNICATIONS, INC. | 4.4K | — | 10 |
| AS26209US | NETWORK-TOOL - Network Tool and Die Company, Inc. | 4.4K | — | 7 |
| AS396312US | FHC - Richmond Memorial Hospital | 4.4K | — | 2 |
| AS14901US | TAOSNET-NEWMEX - TAOS NET LLC | 4.4K | 1 | 3 |
| AS21573US | HEALTHPARTNERS - HealthPartners | 4.4K | — | 9 |