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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 | 3,138 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 211.2M | 21,260 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 113.7M | 639 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,265 |
| 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 | 413 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 49.3M | 3,727 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.7M | 1,958 |
| AS701US | UUNET - Verizon Business | 43.6M | 1,000 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,328 |
| — |
| — |
| 0 |
| AS4062US | SIGNALDATA - Signal Data, Inc. | — | — | 0 |
| AS4074US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4088US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4089US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4092US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4147US | DNIC-AS-04147 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS4162US | TIN-1 - Air Force Systems Networking | — | — | 0 |
| AS4172US | WAYNESBURG - Waynesburg University | — | — | 0 |
| AS4184US | ORACLE-CORPORATION-NL - Oracle Corporation | — | — | 0 |
| AS4186US | ATTIS-ASN4186 - AT&T Enterprises, LLC | — | — | 0 |
| AS4215US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS4220US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS4235US | DGS-2 - 48 Intelligence Squadron/SC, Air Intelligence Agency | — | — | 0 |
| AS4265US | CERNET-ASN-BLOCK - California Education and Research Federation Network | — | — | 0 |
| AS4277US | SEMBLER-STPETE - The Sembler Company | — | — | 0 |
| AS4285US | CENTURYLINK-TSDS-NCRCMT - CenturyLink Communications, LLC | — | — | 0 |
| AS4301US | JSC-NET-ASN2 - Dod Joint Spectrum Center | — | — | 0 |
| AS4316US | DSI-CUST-BLK - Houston Associates, Inc. | — | — | 0 |
| AS4320US | TASA-GW - Television Audio Support Activity | — | — | 0 |
| AS4348US | DNIC-ASBLK-04328-04351 - Headquarters, USAISC | — | — | 0 |
| AS4397US | DSI-CUST-BLK2 - Houston Associates, Inc. | — | — | 0 |
| AS4480US | CMS-AS1 - Air Force Systems Networking | — | — | 0 |
| AS4498US | GLOBALONE - Internet Services of New Hampshire | — | — | 0 |
| AS4541US | IWORK - Internet at Work | — | — | 0 |
| AS4547US | BLS-AS - Bureau of Labor Statistics | — | — | 0 |
| AS4554US | CL-260-4554 - CyrusOne LLC | — | — | 0 |
| AS4567US | HPINC - HP Inc. | — | — | 0 |
| AS4580US | CORSAIR - Net Daemons Associates, Inc. | — | — | 0 |
| AS4590US | MARCAM-GW - CONSULTIX | — | — | 0 |
| AS4928US | VAIS - Virginia Internet Services | — | — | 0 |
| AS4948US | AIX-NET - Alpha Internet | — | — | 0 |
| AS4956US | LOGICSYS - Logic Systems | — | — | 0 |
| AS5014US | EMTF-INC - Air Force Systems Networking | — | — | 0 |
| AS5025US | ASN-DATABANK - Databank, Inc. | — | — | 0 |
| AS5029US | VEGAS-NET - On Ramp Internet Computer Services | — | — | 0 |
| AS5038US | NSAN-DOM - Success Institutes, Inc. | — | — | 0 |
| AS5046US | RANDOMC - Random Communications, Inc | — | — | 0 |
| AS5047US | ARNET2 - ARNet | — | — | 0 |
| AS5093US | OVID-AS - Ovid Technologies | — | — | 0 |
| AS5102US | ATTIS-ASN5102 - AT&T Enterprises, LLC | — | — | 0 |
| AS5103US | ATTIS-ASN5103 - AT&T Enterprises, LLC | — | — | 0 |
| AS5104US | ATTIS-ASN5104 - AT&T Enterprises, LLC | — | — | 0 |
| AS5114US | KBI-NET-GW - Knowledge Broker, Inc. | — | — | 0 |
| AS5170US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5178US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5218US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |