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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 | 21,163 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,244 |
| 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 |
| 228 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 396 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,707 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,953 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,418 |
| — |
| — |
| 0 |
| AS3936US | NTTA-3936 - NTT America, Inc. | — | — | 0 |
| AS3956US | TX-METRO - Texas Metronet | — | — | 0 |
| AS3994US | INET-CORE-AS - Internetworsks, Inc. | — | — | 0 |
| AS4002US | COGENT-4000 - Cogent Communications, LLC | — | — | 0 |
| AS4006US | COGENT-4006 - Cogent Communications, LLC | — | — | 0 |
| AS4031US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4032US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4042US | VERO-NETWORKS-AS4042 - Vero Broadband | — | — | 0 |
| AS4068US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4102US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4104US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4112US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4145US | UPS-AS4145 - UNITED PARCEL SERVICE | — | — | 0 |
| AS4156US | USDA-1 - USDA | — | — | 0 |
| AS4161US | TIN-1 - Air Force Systems Networking | — | — | 0 |
| AS4183US | UUNET-MCIWCOM - Verizon Business | — | — | 0 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS4219US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS4245US | ECHO-AS - Echo Communications Group, Inc. | — | — | 0 |
| AS4264US | CERNET-ASN-BLOCK - California Education and Research Federation Network | — | — | 0 |
| AS4288US | CENTURYLINK-TSDS-NCJCVL - CenturyLink Communications, LLC | — | — | 0 |
| AS4291US | CENTURYLINK-QC-MOE-HELENA - CenturyLink Communications, LLC | — | — | 0 |
| AS4312US | FYI - FYI Networks | — | — | 0 |
| AS4360US | AGNES-SCOTT - Agnes Scott College | — | — | 0 |
| AS4369US | IQUEST-ASN - InterQuest Inc. | — | — | 0 |
| AS4487US | EMTF-UPW - Air Force Systems Networking | — | — | 0 |
| AS4490US | EMTF-LAK - Air Force Systems Networking | — | — | 0 |
| AS4562US | INTEX - Intex-Net | — | — | 0 |
| AS4873US | EATON-CORPORATION-2 - Eaton Corporation | — | — | 0 |
| AS4875US | LMC - Long Motor Corporation | — | — | 0 |
| AS4908US | AS-CONCENTRIC - Verizon Business | — | — | 0 |
| AS4942US | B-NET - B-Net Technologies | — | — | 0 |
| AS4950US | ASN-SPRN-NYSERNET1 - SPRINT, Business Serices Group | — | — | 0 |
| AS4984US | INGRESS - Ingress Communications, Inc. | — | — | 0 |
| AS5055US | WANET - Software Design Associates | — | — | 0 |
| AS5073US | HPINC - HP Inc. | — | — | 0 |
| AS5150US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5194US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5207US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5244US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5246US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5318US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5326US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5336US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5373US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5649US | KEVNET-ASN - Kevin Communication Services | — | — | 0 |