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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. | 217.9M | 23,731 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,300 |
| 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.
32,144 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.5M | 3,838 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 1,995 |
| AS701US | UUNET - Verizon Business | 43.6M | 995 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,313 |
| — |
| — |
| 0 |
| AS23440US | PEAK10CIN - Flexential Corp. | — | — | 0 |
| AS20301US | AS20301 - National Aeronautics and Space Administration | — | — | 0 |
| AS22852US | PLESKLOGIN - PleskLogin Net | — | — | 0 |
| AS22526US | ITC-ASN - ITC Holdings Corp | — | — | 0 |
| AS5107US | ATTIS-ASN5107 - AT&T Enterprises, LLC | — | — | 0 |
| AS22201US | PERFORCE-ASN - Perforce Software, Inc. | — | — | 0 |
| AS18529US | PLEXUS-SYSTEMS-US3 - ROCKWELL AUTOMATION Inc. | — | — | 0 |
| AS18469US | HP-POLY - HP Inc. | — | — | 0 |
| AS16967US | SBCIDC-DLLSTX - AT&T Enterprises, LLC | — | — | 0 |
| AS25572US | ISC-MAD1 Internet Systems Consortium Inc. | — | — | 0 |
| AS19235US | HOSTING-COM - Ntirety, Inc. | — | — | 0 |
| AS19227US | OK-INTERNET - Terra World, Inc. | — | — | 0 |
| AS1395US | ANSBB-ASNNET-2 - Verizon Business | — | — | 0 |
| AS7357US | AMERICANDATANET - American Data Net | — | — | 0 |
| AS7112US | MTSI-ASN - MTS Internet, Inc. | — | — | 0 |
| AS7812US | AEGISSTAR-ASN1 - Aegis Star Corporation | — | — | 0 |
| AS10443US | WOLFENET2 - Wolfe Internet Access | — | — | 0 |
| AS10432US | APC-AS-2 - American Personal Communications | — | — | 0 |
| AS10240US | MOTLEYFOOL - The Motley Fool, LLC. | — | — | 0 |
| AS10304US | NETCHANNEL - Netchannel, INC. | — | — | 0 |
| AS1466US | DNIC-AS-01466 - Headquarters, USAISC | — | — | 0 |
| AS7416US | UCM - UNICOM | — | — | 0 |
| AS1282US | COGENT-1282 - Cogent Communications, LLC | — | — | 0 |
| AS10555US | SCLI - Semi-Custom Logic, Inc | — | — | 0 |
| AS2275US | DNIC-AS-02275 - United States Department of Defense (DoD) | — | — | 0 |
| AS2167US | HPINC - HP Inc. | — | — | 0 |
| AS1872US | HPINC - HP Inc. | — | — | 0 |
| AS1994US | DNIC-AS-01994 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS1552US | DNIC-ASBLK-01550-01601 - United States Department of Defense (DoD) | — | — | 0 |
| AS10684US | EMPIRENET - EmpireNet | — | — | 0 |
| AS5871US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5865US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS5359US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS5950US | DNIC-ASBLK-05800-06055 - United States Department of Defense (DoD) | — | — | 0 |
| AS11143US | OECONNECTION - OEConnection, LLC | — | — | 0 |
| AS11079US | ZAYO-CAN-11079 - Zayo Bandwidth | — | — | 0 |
| AS7098US | FRESH-MANAGED-AS - FRESH MANAGED IT, LLC | — | — | 0 |
| AS10943US | AS-ORT2 - OLD REPUBLIC NATIONAL TITLE INSURANCE CO. | — | — | 0 |
| AS401431US | BLUE-QUARTZ-0 - Blue Quartz | — | 6 | 6 |
| AS10622US | NIEHS - National Institute of Environmental Health Sciences (NIEHS) | — | — | 0 |
| AS12270US | TWC-12270-NA - Charter Communications Inc | — | — | 0 |
| AS5238US | DNIC-ASBLK-05120-05376 - United States Department of Defense (DoD) | — | — | 0 |
| AS11508US | AS-VULTR2 - The Constant Company, LLC | — | — | 0 |
| AS11423US | CALREN-2 - CENIC | — | — | 0 |
| AS7884US | ASN-NC-FUCAPMARK - First Union Capital Markets Group | — | — | 0 |
| AS7903US | OASIS-AS - Breezeline | — | — | 0 |