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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. | 218.2M | 25,924 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,306 |
| 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.
32,232 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,897 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,005 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| — |
| 0 |
| AS402758US | NETSTREAMERS-NETWORK - NetStreamers | — | — | 0 |
| AS402770US | MARCONET-LLC - MarcoNet | — | — | 0 |
| AS402781US | SOFTPHON - Softphon | — | — | 0 |
| AS402794US | INTERLIR-LLC-ASN - InterLIR | — | — | 0 |
| AS402821US | NETVAZ - NETVAZ | — | — | 0 |
| AS402830US | NEXT - NextHops | — | — | 0 |
| AS402871US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402889US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402891US | GENESYS-CLOUD-00 - Genesys | — | — | 0 |
| AS402955US | SHS-VMS-01 - Varian | — | — | 0 |
| AS402972US | AWC-ASN-1 - Yuma/LaPaz | — | — | 0 |
| AS30US | SRI-AICNET - SRI International | — | — | 0 |
| AS75US | ANL-AS - Argonne National Laboratory | — | — | 0 |
| AS79US | DSPO-HC-AS - Los Alamos National Laboratory | — | — | 0 |
| AS114US | NTTA-114 - NTT America, Inc. | — | — | 0 |
| AS115US | DNIC-AS-00115 - United States Department of Defense (DoD) | — | — | 0 |
| AS135US | DNIC-AS-00135 - United States Department of Defense (DoD) | — | — | 0 |
| AS143US | OOG1-AS - 1881CS/XPC | — | — | 0 |
| AS154US | DNIC-AS-00154 - Headquarters, USAISC | — | — | 0 |
| AS162US | DNIC-AS-00162 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS172US | DNIC-AS-00172 - Headquarters, USAISC | — | — | 0 |
| AS184US | MERIT-AS-4 - Merit Network Inc. | — | — | 0 |
| AS198US | DNIC-AS-00198 - United States Department of Defense (DoD) | — | — | 0 |
| AS287US | DNIC-AS-00287 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS332US | DNIC-ASBLK-00306-00371 - United States Department of Defense (DoD) | — | — | 0 |
| AS374US | BROOKS-AS - Air Force Systems Networking | — | — | 0 |
| AS383US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS419US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS422US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS423US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS458US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS462US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS482US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS486US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS498US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS506US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS550US | CORNETT-AS - Los Alamos National Laboratory | — | — | 0 |
| AS561US | HPINC-ASIAPAC - HP Inc. | — | — | 0 |
| AS594US | CENTURYLINK-LEGACY-LVLT-594 - Level 3 Parent, LLC | — | — | 0 |
| AS612US | AIRFIBER521 - AirFiber, Inc. | — | — | 0 |
| AS726US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) | — | — | 0 |
| AS741US | AFCONC-BLOCK2-AS - Air Force Systems Networking | — | — | 0 |
| AS767US | DNIC-AS-00767 - United States Department of Defense (DoD) | — | — | 0 |
| AS784US | HJFNET-AS - Henry M. Jackson Foundation for The Advancement of Military Medicine | — | — | 0 |
| AS788US | DNIC-AS-00788 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS854US | MINNEAPOLIS-IXP - Richmond-IX Corporation | — | — | 0 |