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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 | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 219M | 23,681 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 645 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.8M | 1,370 |
| 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.
32,364 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 236 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 439 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.8M | 3,914 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 45M | 2,047 |
| AS701US | UUNET - Verizon Business | 43.6M | 996 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.8M | 4,503 |
| 256 |
| — |
| 1 |
| AS402409US | QFANALYTICS - QF | 256 | — | 1 |
| AS403016US | MELO-THE-ROCKET - ViVa | 256 | — | 1 |
| AS46900US | REPC-AS - Rushmore Electric Power Cooperative, Inc. | 256 | 256 | 2 |
| AS46665US | ASM - Applied Statistics & Management, Inc. | 256 | — | 1 |
| AS207787US | ALLTHINGSTECH All Things Technology LLC | 256 | 1 | 2 |
| AS54808US | SUN-COAST-RESOURCES - SUN COAST RESOURCES, INC | 256 | — | 1 |
| AS18631US | WDL-TECHNOLOGIES - WDL Technologies | 256 | — | 1 |
| AS399345US | AAFCU-PDC - American Airlines Federal Credit Union | 256 | — | 1 |
| AS36268US | BUNNY - Bunny & Tomato Interconnect, Inc. | 256 | 1 | 2 |
| AS402433US | HG-ITS-AS2 - Hourglass | 256 | — | 1 |
| AS198015US | INOXWEB-LLC Inoxweb LLC | 256 | 16.4K | 5 |
| AS399298US | HEALTHAXIS-AS - HealthAxis Group, LLC | 256 | — | 1 |
| AS17407US | CHERRYROAD-TECH - CherryRoad Technologies, Inc. | 256 | — | 1 |
| AS396847US | SDC - SDC Internet | 256 | 4.4K | 3 |
| AS16865US | SKYLINE - Skyline Security | 256 | 16 | 2 |
| AS399223US | TRUNET-INTERNET-SERVICES-LLC - TruNet Internet Services, LLC | 256 | — | 1 |
| AS53599US | KENOSHA-COUNTY-WI - Kenosha County | 256 | — | 1 |
| AS394227US | ETTKY - Eastern Telephone & Technologies, Inc. | 256 | — | 1 |
| AS48386US | MISAKA-ES Misaka Network, Inc. | 256 | 1 | 2 |
| AS39981US | STONE-POINT-CAPITAL-PUBLIC - Stone Point Capital LLC | 256 | — | 1 |
| AS21644US | DISTINGUISHED-SERVICES - Distinguished Services | 256 | — | 1 |
| AS394415US | TROYGROUP - TROY Group, Inc. | 256 | — | 1 |
| AS33711US | SADDLE-NETWORKS - Saddle Networks | 256 | 65.8K | 3 |
| AS53438US | VB-ASN-01 - Vantage Bank | 256 | — | 1 |
| AS32728US | PALOMA-PARTNERS - Paloma Partners | 256 | — | 1 |
| AS397812US | LIT-CLOUD-01 - Live Information Technology Consulting Group, LLC | 256 | — | 1 |
| AS399205US | MAYSTREET-INET-01 - Maystreet | 256 | — | 1 |
| AS393272US | PORT-MADISON-ENTERPRISES - Port Madison Enterprises | 256 | — | 1 |
| AS393501US | JCC-13-AS - JCC | 256 | 16 | 2 |
| AS16618US | FUC-AS-16618 - Finastra USA Corporation | 256 | — | 1 |
| AS397904US | PDX-AREN - Avangrid Renewables, LLC | 256 | — | 1 |
| AS400923US | ENC-DAL - Encore Group (USA) LLC | 256 | — | 1 |
| AS54912US | BAYAL-IP1 - Bay Alarm Company | 256 | — | 1 |
| AS36456US | VELOCITYCU - Velocity Credit Union | 256 | — | 1 |
| AS35866US | SILVER-CHIP - Silver Chip Interactive | 256 | 65 | 3 |
| AS3515US | DSI-WR - RTX BBN Technologies, Inc. | 256 | — | 1 |
| AS401712US | NJ-US-NEBIUS - Nebius Inc. | 256 | — | 1 |
| AS46995US | JUMP-WIRELESS - Jump Wireless LLC | 256 | — | 1 |
| AS27214US | INSITU-AS - Insitu, Inc | 256 | — | 1 |
| AS33589US | CITYOFSOUTHLAKE - City of Southlake | 256 | — | 1 |
| AS62546US | FRISCOTXISD - Frisco Independent School District | 256 | — | 1 |
| AS22763US | BGP-DUCKS-INC - DUCKS UNLIMITED, INC. | 256 | — | 1 |
| AS35991US | PAULSON-CO - Paulson & CO. INC. | 256 | — | 1 |
| AS53331US | IMPERIAL-CAPITAL-GROUP-LLC - Imperial Capital Group LLC | 256 | — | 1 |
| AS63198US | JCSO-ASN - Jefferson County Sheriff's Office | 256 | — | 1 |
| AS30662US | VCU-01 - Veridian Credit Union | 256 | — | 1 |