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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 |
| — |
| 5 |
| 5 |
| AS27048US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS6584US | MICROSOFT-GP-AS - Microsoft Corporation | — | 1 | 1 |
| AS6202US | NEXTRON - IMV/Internet | — | — | 0 |
| AS4032US | ASN-4020-1 - Air Force Systems Networking | — | — | 0 |
| AS4219US | DNIC-ASBLK-04214-04221 - United States Department of Defense (DoD) | — | — | 0 |
| AS4207US | NET-INTRNET - Allied Access Inc. | — | — | 0 |
| AS4068US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS4104US | DNIC-ASBLK-04065-04125 - Headquarters, USAISC | — | — | 0 |
| AS1997US | IBMDES-AS - IBM | — | — | 0 |
| AS398767US | ORONO-SCHOOLS-MN - Independent School District No 278 County of Hennepin | — | 16 | 1 |
| AS626US | DNIC-ASBLK-00616-00665 - United States Department of Defense (DoD) | — | — | 0 |
| AS3907US | CONNECT-1-NET - Connected INC | — | — | 0 |
| AS3664US | DNIC-ASBLK-03664-03667 - United States Department of Defense (DoD) | — | — | 0 |
| AS3656US | CITYPHX1 - City of Phoenix | — | — | 0 |
| AS508US | AFCONC-BLOCK1-AS - Air Force Systems Networking | — | — | 0 |
| AS32451US | TX-CLOUD - BigTech | — | — | 0 |
| AS32265US | AS-WAVE-SPARE-1 - Wave Broadband | — | — | 0 |
| AS30333US | ASCD - ASCD | — | — | 0 |
| AS30106US | ANCOR - Ancor Information Management | — | — | 0 |
| AS30099US | SB-2 - Cogeco Peer 1 (USA) Inc. | — | — | 0 |
| AS29710US | BUNCOMBECOSCHOOLS - Buncombe County Schools | — | — | 0 |
| AS29740US | SSI-BGP4 - Schaefer Systems International, Inc. | — | — | 0 |
| AS27525US | FNF-CLOUD2 - Fidelity National Financial Inc. | — | — | 0 |
| AS27561US | BRONGUS - Brongus | — | — | 0 |
| AS33065US | NUVEUM - Nuveum Inc. | — | — | 0 |
| AS33357US | DS-NET - Teradyne, Inc. | — | — | 0 |
| AS33216US | ANALOG DEVICES - Analog Devices, Inc. | — | — | 0 |
| AS33188US | AUTOWC-01 - Auto Warehousing Company | — | — | 0 |
| AS32652US | ASHERECHICAGODC - HERE North America LLC | — | — | 0 |
| AS32813US | APS-ASN - Fiserv Solutions, LLC | — | — | 0 |
| AS32568US | AS-ASN-1 - Nasdaq, Inc. | — | — | 0 |
| AS399477US | RYAN-PUBLIC-ASN - Ryan Companies US, Inc. | — | 256 | 1 |
| AS26749US | CALLTOWER - CallTower, Inc. | — | — | 0 |
| AS30709US | REVEAL - REVEAL SYSTEMS INC | — | — | 0 |
| AS20433US | CENGAGE-MABOS - Cengage Learning, Inc. | — | — | 0 |
| AS22914US | BIGRIVER2 - Big River Telephone Company, LLC | — | — | 0 |
| AS22053US | ARENAONE - Arena One, LLC | — | — | 0 |
| AS22144US | CHAPMAN - Chapman and Cutler | — | — | 0 |
| AS21988US | HENDRICK-AUTO-GROUP - Hendrick Automotive Group | — | — | 0 |
| AS47778US | SUNOAKI-NET-BACKBONE Sunoaki Network LLC | — | 15 | 12 |
| AS19897US | IQNT-BROAD-6-19897 - Inteliquent, inc. | — | — | 0 |
| AS20287US | OFINY - Invesco Group Services, Inc. | — | — | 0 |
| AS20153US | ARGUSHEALTH - ARGUS HEALTH SYSTEMS | — | — | 0 |
| AS20039US | BAKERJK - Baker College | — | — | 0 |
| AS27095US | DNIC-ASBLK-27032-27159 - United States Department of Defense (DoD) | — | — | 0 |
| AS26390US | SERVESA-LLC - Servesa LLC | — | — | 0 |