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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) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218M | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| — |
| 1 |
| AS400062US | CALL-NETWORKS - Call Networks, Inc | 256 | — | 1 |
| AS33615US | EVHC - Envision Healthcare Holdings, Inc | 256 | — | 1 |
| AS30280US | TFCU - Teachers Federal Credit Union | 256 | — | 1 |
| AS20348US | OFS-BRANDS - OFS Brands Holdings Inc | 256 | — | 1 |
| AS32230US | PRESTIGEFINANCIAL1420 - Prestige Financial Services | 256 | — | 1 |
| AS7837US | TAIHE-NETWORKS - Taihe Networks LLC | 256 | 256 | 2 |
| AS36726US | ARROW-INTERNATIONAL - Arrow International Inc. | 256 | 1 | 2 |
| AS219082US | BOUGH Bough Limited | 256 | 2 | 3 |
| AS30262US | PTT-AS - High 5 Games, LLC | 256 | — | 1 |
| AS401795US | COXESPORTS - Cox Enterprises Inc | 256 | — | 1 |
| AS399785US | CITY-OF-NEW-SMYRNA-BEACH-ASN - City of New Smyrna Beach | 256 | — | 1 |
| AS6224US | CENTURYLINK-MTIPS2-CHI - CenturyLink Communications, LLC | 256 | — | 1 |
| AS398987US | NS-GLOBAL - PhirePhly Design | 256 | 1 | 2 |
| AS399669US | FR-CORP-USS-SURF - Forest River, Inc. | 256 | — | 1 |
| AS396900US | TRAVELINGMAILBOX - Traveling Mailbox | 256 | — | 1 |
| AS402149US | WAN2 - WAN2 LLC | 256 | — | 1 |
| AS23096US | CNSL-32-23096 - Controlled Networks Solution LLC | 256 | — | 1 |
| AS33710US | CNLR-ASN - National Retail Properties, Inc. | 256 | — | 1 |
| AS402137US | AMAYA-CLOUD-01 - AmayaCloud Inc | 256 | — | 1 |
| AS40626US | WENTWO-ASN - Wentworth-Douglass Hospital | 256 | — | 1 |
| AS397055US | LNH-ASN-01 - 12-182-8156 | 256 | — | 1 |
| AS397927US | GPB-HQ-01 - Georgia Public Broadcasting | 256 | — | 1 |
| AS395117US | LIMS - LabVantage Solutions, Inc | 256 | — | 1 |
| AS21935US | EPSILONDATA50 - Epsilon Data Management LLC | 256 | — | 1 |
| AS62920US | PRAIRIEPOWER - Prairie Power, Inc. | 256 | — | 1 |
| AS395182US | HEMPFIELDSD-PA - Hempfield School District | 256 | 256 | 2 |
| AS6343US | OMEGASYS-DC1 - Omega Systems Consultants, LLC | 256 | — | 1 |
| AS399416US | CITY-OF-PHOENIX-AVN - City of Phoenix | 256 | — | 1 |
| AS656US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS40367US | HRH-GHCH - Harbor Regional Health Community Hospital | 256 | — | 1 |
| AS32608US | US-NEW-ERA-FIBER - US NEW ERA FIBER LLC | 256 | 65.5K | 2 |
| AS394816US | GROCERYOUTLET - Grocery Outlet Inc. | 256 | — | 1 |
| AS40781US | WINT-PHILLY - Wintsec Technologies, LLC | 256 | — | 1 |
| AS396189US | ABI - ABI Research | 256 | — | 1 |
| AS26377US | EXPERTEKSYSTEMS - Expertek Systems Inc. | 256 | — | 1 |
| AS399705US | ADVANCED-IS-NET1 - Advanced IS | 256 | — | 1 |
| AS394185US | BOU-BANCORP - Bank of Utah | 256 | — | 1 |
| AS62718US | SSDCOUGARSNET-SPRINGFIELD-SCHOOL-DISTRICT-DELCO - Springfield School District | 256 | — | 1 |
| AS402069US | MONETA - Moneta Solutions, Inc | 256 | 4 | 5 |
| AS54506US | STAYPINEAPPLE - Pineapple Hospitality Company | 256 | — | 1 |
| AS397796US | GRMC-SC1 - Gila Regional Medical Center | 256 | — | 1 |
| AS393688US | INSULET600TECH - Insulet Corporation | 256 | — | 1 |
| AS63301US | GSR-ARIN-01 - MEI-GSR Holdings, LLC | 256 | — | 1 |
| AS401092US | ESUSDNET - El Segundo Unified School District | 256 | — | 1 |
| AS22396US | LANVERA - Lanvera Ltd | 256 | — | 1 |
| AS11074US | CROWNCASTLE-AS11074 - Crown Castle Fiber LLC | 256 | — | 1 |