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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. | 218M | 24,540 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 1,305 |
| 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.
32,187 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 | 3,885 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,362 |
| 256 |
| — |
| 1 |
| AS398653US | XLRYNT-01 - XLRYNT | 256 | — | 1 |
| AS12017US | PRM-078 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS399999US | LYON-BV-01 - LYON COLLEGE | 256 | — | 1 |
| AS47098US | SAMPSON COUNTY SCHOOLS - Sampson County Schools | 256 | — | 1 |
| AS32923US | SILVERPNT-CT - SILVER POINT CAPITAL, LP | 256 | — | 1 |
| AS23765US | EA-AU-AP - Electronic Arts, Australia | 256 | — | 1 |
| AS46669US | AMERICAN-PACIFIC-MORTGAGE - American Pacific Mortgage Corp. | 256 | — | 1 |
| AS26415US | VERISIGN-INC - VeriSign Global Registry Services | 256 | — | 1 |
| AS206916US | SOUTHWEST-NET Southwest Network Corporation | 256 | — | 1 |
| AS40453US | GRESHAM-NET - City of Gresham | 256 | — | 1 |
| AS13785US | SMH - SHORE MEMORIAL HOSPITAL | 256 | — | 1 |
| AS46336US | GOODVILLE - Goodville Mutual Casualty Company | 256 | — | 1 |
| AS55262US | ANTHEMCONNECT-LA2 - Anthem Broadband | 256 | 65.5K | 2 |
| AS32721US | WESBANCO - WesBanco Bank, Inc. | 256 | — | 1 |
| AS397614US | GTLAKES - Great Lakes Energy Cooperative | 256 | 26 | 12 |
| AS30479US | RLC-ASN-01 - Red Lion Controls, Inc. | 256 | — | 1 |
| AS14565US | RRTL-3719 - Red Rock Telecommunications, Inc. | 256 | — | 1 |
| AS14208US | BUDCO-PSC - BUDCO | 256 | — | 1 |
| AS46291US | LODCO - LOD Communications, Inc. | 256 | — | 1 |
| AS399701US | NWW-PHX-1 - NAVAERA WORLDWIDE, LLC | 256 | — | 1 |
| AS402702US | JASON - Highlander | 256 | — | 1 |
| AS395024US | AS-PIKEMEDCENTER - Pikeville Medical Center | 256 | — | 1 |
| AS402494US | BARTLETTDAIRY-JFK-SDWAN - Bartlett | 256 | — | 1 |
| AS394044US | TERRITORIAL - Bank of Hope | 256 | — | 1 |
| AS21943US | ASN-ITG-072618 - International Textile Group, Inc. | 256 | — | 1 |
| AS46348US | FOSTER-ASN01 - Foster Poultry Farms | 256 | — | 1 |
| AS26882US | RIPPLE-BROADBAND - Ripple Broadband, LLC | 256 | 65.5K | 2 |
| AS11981US | AS-REUBENONLINE - Yolo Risk Management LLC | 256 | 256 | 2 |
| AS54068US | CGS-BGP - City of Greenville, SC | 256 | — | 1 |
| AS396992US | LCTCS-BRHQ - LOUISIANA COMMUNITY AND TECHNICAL COLLEGE SYSTEM | 256 | — | 1 |
| AS401675US | EAI-ASN - Empire AI | 256 | 256 | 2 |
| AS63059US | NETSER-US-DE1 - Netser, Inc. | 256 | — | 1 |
| AS53413US | PRCC - Pearl River Community College | 256 | — | 1 |
| AS14747US | LEE-COUNTY-CC - Lee County Clerk of Courts | 256 | — | 1 |
| AS398093US | ADA-TECH-LLC - ADA Tech, LLC | 256 | — | 1 |
| AS394640US | TSD409-NET - Tahoma School District No. 409 | 256 | — | 1 |
| AS33712US | APOG-DOWNSTATE - Apogee Telecom Inc. | 256 | — | 1 |
| AS397132US | MCCB - MIssissippi Community College Board | 256 | — | 1 |
| AS62827US | THALES-DIS-COO-DFW-01 - Thales DIS USA, Inc. | 256 | — | 1 |
| AS26117US | UNION-POWER-COOPERATIVE - Union Power | 256 | — | 1 |
| AS26823US | INTERCEPT1 - First International Bank & Trust | 256 | — | 1 |
| AS395116US | AVH-1600-WEST - Antelope Valley Healthcare District | 256 | — | 1 |
| AS43737US | NODESDIRECT Nodes Direct Holdings LLC | 256 | — | 1 |
| AS399981US | CRST-THE-TRANSPORTATION-SOLUTION - CRST THE TRANSPORTATION SOLUTION | 256 | — | 1 |
| AS27189US | MARTEN-TRANSPORT-LTD - Marten Transport, Ltd. | 256 | — | 1 |
| AS33200US | JABIL-AS-SILU-PH - Jabil | 256 | — | 1 |