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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 | 3,139 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,160 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,243 |
| 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 | 383 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,669 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,948 |
| AS701US | UUNET - Verizon Business | 43.6M | 998 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,372 |
| 256 |
| — |
| 1 |
| AS394057US | BPS-ASN - Batavia Public School District 101 | 256 | — | 1 |
| AS401027US | JDI-EAGLE - JUST DISH IT, INC | 256 | 256 | 2 |
| AS33278US | NSLC-ORG - National Student Clearinghouse | 256 | — | 1 |
| AS396245US | KIRBYCORP - KIRBY CORPORATION | 256 | — | 1 |
| AS126US | DNIC-AS-00126 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS398755US | 12GLOBAL - Iroute Inc. | 256 | — | 1 |
| AS25972US | SAP-SE-PAL - SAP Labs | 256 | — | 1 |
| AS63364US | VPHARM - Vertex Pharmaceuticals | 256 | — | 1 |
| AS64218US | LEGACY-MIDSTATE-01 - Allied | 256 | — | 1 |
| AS35952US | PARADOXNETWORKS-INC - ParadoxNetworks, Inc | 256 | 1 | 2 |
| AS31894US | STARCOMWI - Star Communications LLC | 256 | — | 1 |
| AS39950US | STARC-15-39950 - STARCREST PRODUCTS OF CALIFORNIA, INC. | 256 | — | 1 |
| AS400949US | AOTW - Angel of the Winds Casino | 256 | — | 1 |
| AS393953US | MERC-AS - Mercantile Bank of Michigan | 256 | — | 1 |
| AS16650US | TORRID - Torrid LLC | 256 | — | 1 |
| AS17344US | ENGLEW-AS17344 - Englewood Hospital and Medical Center | 256 | — | 1 |
| AS40233US | SLOM-INC - SLOMIN'S INC. | 256 | — | 1 |
| AS397487US | RAVENS-ASN - Baltimore Ravens Limited Partnership | 256 | — | 1 |
| AS393473US | BURRIS-LOGISTICS - Burris Logistics | 256 | — | 1 |
| AS399270US | MGMC-NET - MARY GREELEY MEDICAL CENTER | 256 | — | 1 |
| AS397701US | AMOUNT - Amount, LLC | 256 | — | 1 |
| AS397040US | SUPN-INT - Supernus Pharmaceuticals, Inc. | 256 | — | 1 |
| AS19642US | CONNEL-FOLEY - Connell Foley LLP | 256 | — | 1 |
| AS399714US | KIRKLAND-ELLIS-PS - Kirkland & Ellis LLP | 256 | — | 1 |
| AS394721US | OPSRAMP-HPE-ASN - OpsRamp, LLC | 256 | — | 1 |
| AS12074US | ITSC - County of Saginaw | 256 | — | 1 |
| AS393530US | TLU - TEXAS LUTHERAN UNIVERSITY | 256 | — | 1 |
| AS20479US | MCSO-PSC-1 - Monmouth County Sheriff's Office | 256 | — | 1 |
| AS401470US | UC-AGRICULTURE-AND-NATURAL-RESOURCES - The Regents of the University of California, Agriculture and Natural Resources | 256 | — | 1 |
| AS30000US | KRAMERLEVIN-1 - Kramer Levin Naftalis & Frankel LLP | 256 | — | 1 |
| AS40644US | IFS - Integra Financial Services, LLC | 256 | — | 1 |
| AS33394US | JABIL-AS-FRAU-PH - Jabil | 256 | — | 1 |
| AS27455US | WT-ASN - Williams Trading LLC | 256 | — | 1 |
| AS54158US | SAG-NYC-1 - Selendy & Gay PLLC | 256 | — | 1 |
| AS394852US | ASN-AWC - Arizona Water Company | 256 | — | 1 |
| AS397150US | UNION-HEALTH-SYSTEM - Union Hospital, Inc. | 256 | — | 1 |
| AS23245US | EADS-NORTH-AMERICA--AS01 - Airbus Defense and Space, Inc. | 256 | — | 1 |
| AS55224US | MCS-AS - Marietta City Schools | 256 | — | 1 |
| AS397713US | ARCHULETA-INNOVATION-DESIGNS - Mt San Rafael Hospital | 256 | — | 1 |
| AS399684US | OVA-SUMMIT - SL Green Realty Corp | 256 | — | 1 |
| AS398279US | KITCHELL-CORP - KITCHELL CORPORATION | 256 | — | 1 |
| AS393274US | DARIGOLD-NET - Darigold, Inc. | 256 | — | 1 |
| AS399255US | NORTHWEST-OHIO-BROADBAND-LLC - NORTHWEST OHIO BROADBAND, LLC | 256 | — | 1 |
| AS397061US | HRL-MLB-01 - HRL Laboratories, LLC | 256 | — | 1 |
| AS393920US | MEREDITHCORP2 - Meredith Corp. | 256 | — | 1 |
| AS399276US | KCCURRENT - KC Current | 256 | — | 1 |