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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 |
| AS7160US | NETDYNAMICS - Oracle Corporation | — | — | 0 |
| AS313US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS8062US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS5326US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5318US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5194US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5244US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4908US | AS-CONCENTRIC - Verizon Business | — | — | 0 |
| AS4875US | LMC - Long Motor Corporation | — | — | 0 |
| AS4360US | AGNES-SCOTT - Agnes Scott College | — | — | 0 |
| AS4984US | INGRESS - Ingress Communications, Inc. | — | — | 0 |
| AS6020US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6016US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5949US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS6000US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5902US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS298US | RADC-LONEX-AS - Air Force Systems Networking | — | — | 0 |
| AS1997US | IBMDES-AS - IBM | — | — | 0 |
| AS2035US | NGIS-AS3 - Northrop Grumman Corp. | — | — | 0 |
| AS4156US | USDA-1 - USDA | — | — | 0 |
| AS4145US | UPS-AS4145 - UNITED PARCEL SERVICE | — | — | 0 |
| AS4068US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS3936US | NTTA-3936 - NTT America, Inc. | — | — | 0 |
| AS3928US | VALLEY-TECH - Valley Tech Corporation | — | — | 0 |
| AS3664US | DNIC-ASBLK-03664-03667 - United States Department of Defense (DoD) | — | — | 0 |
| AS3822US | ITSNET - Internet Technology Systems | — | — | 0 |
| AS615US | DNIC-AS-00615 - Headquarters, USAISC | — | — | 0 |
| AS598US | CENTURYLINK-LEGACY-LVLT-598 - Level 3 Parent, LLC | — | — | 0 |
| AS432US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS3468US | DNIC-AS-03468 - United States Department of Defense (DoD) | — | — | 0 |
| AS3398US | SAND-NET - Sun Users Group Metro San Diego Network Coop | — | — | 0 |
| AS280US | NTTA-280 - NTT America, Inc. | — | — | 0 |
| AS236US | MERIT-AS-13 - Merit Network Inc. | — | — | 0 |
| AS244US | DNIC-AS-00244 - United States Department of Defense (DoD) | — | — | 0 |
| AS67US | SDC-PRC-AS - Unisys Corporation | — | — | 0 |
| AS307US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS1597US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS118US | DNIC-AS-00118 - United States Department of Defense (DoD) | — | — | 0 |
| AS1469US | DNIC-ASBLK-01469-01470 - Headquarters, USAISC | — | — | 0 |
| AS626US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS1350US | SEARSNET-AS - Sears Technology Services Incorporated | — | — | 0 |
| AS1392US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS1033US | HPE-AMS-CFC - HEWLETT PACKARD ENTERPRISE COMPANY | — | — | 0 |
| AS751US | MERIT-AS-17 - Merit Network Inc. | — | — | 0 |
| AS6981US | AS11456 - Windstream Communications LLC | — | — | 0 |