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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 |
| AS4219US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS615US | DNIC-AS-00615 - Headquarters, USAISC | — | — | 0 |
| AS67US | SDC-PRC-AS - Unisys Corporation | — | — | 0 |
| AS8105US | DAKOTACOM - DakotaPro.biz | — | — | 0 |
| AS8062US | BELLSOUTH-NET-BLK3 - AT&T Enterprises, LLC | — | — | 0 |
| AS7807US | RURALNET - RuralNet | — | — | 0 |
| AS7931US | ACVI - Auburn Cable Vision Inc. | — | — | 0 |
| AS7333US | ATH - AMERICAN TECHNOLOGY HOLDINGS, INC. | — | — | 0 |
| AS7320US | LANCITY - LANcity Company | — | — | 0 |
| AS7220US | DIAMONDMM - Diamond Multimedia Systems, Inc | — | — | 0 |
| AS7435US | ATM-CIN - Attachmate Corp. | — | — | 0 |
| AS7074US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS7072US | NN-RS00-RS06 - NAP.NET, LLC | — | — | 0 |
| AS5373US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5657US | NOVAIAC-ASN - FC Business Systems | — | — | 0 |
| AS5194US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS4042US | VERO-NETWORKS-AS4042 - Vero Broadband | — | — | 0 |
| AS21657US | FRTCC-LOUISANET - Foothills Rural Telephone Cooperative Corporation, Inc. | — | — | 0 |
| AS23328US | EST-INC-ASN - EST, Inc. | — | — | 0 |
| AS22321US | PLUMCHOICE-DC1 - PlumChoice | — | — | 0 |
| AS22201US | PERFORCE-ASN - Perforce Software, Inc. | — | — | 0 |
| AS21776US | BLOSSOMTEL-AS - CHICKASAW TELEPHONE | — | — | 0 |
| AS22852US | PLESKLOGIN - PleskLogin Net | — | — | 0 |
| AS3008US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3004US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2972US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2978US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2745US | DNIC-AS-02745 - United States Department of Defense (DoD) | — | — | 0 |
| AS2733US | ADDREX - Addrex, Inc | — | — | 0 |
| AS2001US | AS-NALCO-MPLS - Ecolab, Inc. | — | — | 0 |
| AS212789US | BullCloud-Network-Technology BullCloud Network Technology Ltd | — | — | 0 |
| AS1462US | DNIC-ASBLK-01462-01463 - Headquarters, USAISC | — | — | 0 |
| AS4032US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS3463US | LOGIN-NONAZ - Login, Inc. | — | — | 0 |
| AS4006US | COGENT-4006 - Cogent Communications, LLC | — | — | 0 |
| AS3761US | UTOPIA-FIBER-IT - UTOPIA | — | — | 0 |
| AS3664US | DNIC-ASBLK-03664-03667 - United States Department of Defense (DoD) | — | — | 0 |
| AS3612US | DELL-BLK - Dell, Inc. | — | — | 0 |
| AS3907US | CONNECT-1-NET - Connected INC | — | — | 0 |
| AS508US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS476US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS393US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS418US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS280US | NTTA-280 - NTT America, Inc. | — | — | 0 |
| AS259US | SCUBED-AS - SCUBED | — | — | 0 |
| AS134US | CORONA-GW-AS - Fleet Analysis Center | — | — | 0 |