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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 | 23,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,299 |
| 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.
32,140 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 230 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,881 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,992 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,310 |
| — |
| — |
| 0 |
| AS11682US | INSTAVPS-SLC1 - InstaVPS | — | — | 0 |
| AS11412US | CENTURYLINK-QC-MOE-SIOUX-FALLS - CenturyLink Communications, LLC | — | — | 0 |
| AS5882US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS2953US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS10894US | U11912 - WebGenesis, Inc | — | — | 0 |
| AS3027US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3020US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS1625US | CORESPACE - CoreSpace, Inc. | — | — | 0 |
| AS2885US | MERIT-AS-28 - Merit Network Inc. | — | — | 0 |
| AS3831US | RESERVED-IPADMIN - Level 3 Parent, LLC | — | — | 0 |
| AS3820US | ACP - American Center for Physics | — | — | 0 |
| AS40212US | ECL-ASN - Eminence Capital, LLC. | — | — | 0 |
| AS33406US | GLYNN-COUNTY-SCHOOLS - GLYNN COUNTY SCHOOLS | — | — | 0 |
| AS36076US | ETHER-ASN - Etherstack, Inc. | — | — | 0 |
| AS33676US | TELX-MIAMI - Telx | — | — | 0 |
| AS33613US | RF-SF - Rodan & Fields LLC | — | — | 0 |
| AS30292US | SHRINE - AEG | — | — | 0 |
| AS29908US | TECH-CLOUD-ASN - Tech Electronics, Inc. | — | — | 0 |
| AS30145US | PCUC-AS - PostUp LLC | — | — | 0 |
| AS30142US | 24-7-AS-IDC-002 - 247.ai, Inc. | — | — | 0 |
| AS32317US | HFCC - Henry Ford College | — | — | 0 |
| AS27626US | AS-JOYTEL - Joytel | — | — | 0 |
| AS31970US | LIVESTREAM-USA-1 - Livestream LLC | — | — | 0 |
| AS31924US | AS-1 - Lyicore Tech LLC | — | — | 0 |
| AS30391US | ISCINT - ISC INTERNATIONAL, LTD. | — | — | 0 |
| AS30694US | KLAS-5527 - Keystone Systems, Inc. | — | — | 0 |
| AS47011US | CBN-GENEVA - CBN | — | — | 0 |
| AS46975US | BIGTIP - BigTip, Inc. | — | — | 0 |
| AS54010US | ASN-SIML - SRS Investment Management, LLC | — | — | 0 |
| AS4402US | DSI-CUST-BLK2 - Houston Associates, Inc. | — | — | 0 |
| AS5851US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS4005US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS5293US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4087US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4076US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS3893US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3951US | INS-AZURE-EXTRANET-VHUBS - CenturyLink Communications, LLC | — | — | 0 |
| AS3866US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS36098US | RENAISSANCE-TECH-CA - Renaissance Technologies Corp. | — | — | 0 |
| AS33747US | CHARTER-33747-NA - Charter Communications LLC | — | — | 0 |
| AS15105US | NETWORKTELEPHONE - Windstream Communications LLC | — | — | 0 |
| AS4191US | STORTEK-NAT - Oracle Corporation | — | — | 0 |
| AS4169US | ECHNET - Egleston Children's Hospital | — | — | 0 |
| AS32690US | CAES SYSTEMS LLC - CAES Systems LLC | — | — | 0 |
| AS32919US | ISP-PROMESA - Promesa Enterprises Inc. | — | — | 0 |
| AS32376US | PATIENT-FIRST - PATIENT FIRST CORPORATION | — | — | 0 |