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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. | 218.1M | 24,656 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 644 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.6M | 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.
32,202 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 | 3,891 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,002 |
| AS701US | UUNET - Verizon Business | 43.6M | 993 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 256 |
| — |
| 1 |
| AS402352US | LM-ADM-001 - Admail.net | 256 | — | 1 |
| AS54269US | PROVIDENTCU - Provident Credit Union | 256 | — | 1 |
| AS402272US | CORSTL - Collector of Revenue | 256 | — | 1 |
| AS395231US | IFANR - IFANR LLC | 256 | 4.1K | 2 |
| AS394495US | SHAWFIBER-01 - Shaw Fiber | 256 | 256 | 2 |
| AS36542US | SERVERNET - Gwinnett County Government | 256 | — | 1 |
| AS20423US | SUQUAMISH-TRIBE - Suquamish Tribe | 256 | — | 1 |
| AS203898US | CLOUDFLARENET-UK Cloudflare Inc | 256 | 2 | 3 |
| AS393656US | AS393656 - WIT.COM Inc. | 256 | 65.5K | 2 |
| AS21605US | AHBELO-CORP - DallasNews Corporation | 256 | — | 1 |
| AS32648US | MNAT - Morris, Nichols, Arsht and Tunnel | 256 | — | 1 |
| AS46081US | FOOD-DONATION-CONNECTION - Food Donation Connection | 256 | — | 1 |
| AS394888US | WOW-LOGISTICS-A - WOW Logistics Company | 256 | — | 1 |
| AS18458US | NYBG - The New York Botanical Garden | 256 | — | 1 |
| AS36078US | MI-DATACENTER-2019 - M/I Homes, Inc | 256 | — | 1 |
| AS397169US | FFFCU - Firefighters First Federal Credit Union | 256 | — | 1 |
| AS63180US | MTESC - STS Tire & Auto Centers | 256 | — | 1 |
| AS14355US | IWI-TG-FW - Interstate Warehousing, Inc. | 256 | — | 1 |
| AS22614US | IGA-ASN-01 - Legislative Services Agency | 256 | — | 1 |
| AS394552US | TRSTPT-AS - TrustPoint International | 256 | — | 1 |
| AS6629US | NOAA-SILVERSPRING - National Oceanic and Atmospheric Administration | 256 | 1K | 2 |
| AS397767US | WEISSMAN-THEATRICAL-SUPPLY - Weissman's Theatrical Supplies, Inc. | 256 | — | 1 |
| AS23439US | KQED-ORG - KQED Inc. | 256 | — | 1 |
| AS402492US | HOSTCRAM - HostCram | 256 | — | 1 |
| AS394355US | MGRM - MGRM Pinnacle, Inc. | 256 | — | 1 |
| AS394108US | GMS-AS394108 - Gypsum Management and Supply, Inc. | 256 | — | 1 |
| AS395722US | NEWRELIC-AS-2 - New Relic | 256 | — | 1 |
| AS401495US | IVA-ASN-1 - IVA | 256 | — | 1 |
| AS396210US | AAAHC-HQ - Accreditation Association for Ambulatory Health Care, Inc. | 256 | — | 1 |
| AS30293US | SOUTHCO-AS30293 - SOUTHCO INC | 256 | — | 1 |
| AS395302US | ADAMS-COUNTY-COLORADO - Adams County, Colorado | 256 | — | 1 |
| AS16767US | SPI-TC-AZO - Summit Polymers, Inc. | 256 | — | 1 |
| AS5641US | TVH-289 - UNIVERSAL HEALTH SERVICES | 256 | — | 1 |
| AS400140US | NTTDATA-TAG-LNK - Transaction Applications Group, Inc. | 256 | — | 1 |
| AS55269US | CST - Critical Signal Technologies, Inc | 256 | — | 1 |
| AS397333US | PETCO-DDC - Petco | 256 | — | 1 |
| AS399208US | OVA-BASE-BLDG - SL Green Realty Corp | 256 | — | 1 |
| AS26440US | SPRAGUE-ENERGY - Sprague Operating Resources LLC | 256 | — | 1 |
| AS26065US | ABA-1375 - Anchin, Block & Anchin LLP | 256 | — | 1 |
| AS394022US | LCSD-ASN - Lyon County School District | 256 | — | 1 |
| AS394665US | MOSSASN - Moss & Associates, LLC | 256 | — | 1 |
| AS35991US | PAULSON-CO - Paulson & CO. INC. | 256 | — | 1 |
| AS30555US | VSCP01 - VariSpace Coppell, LLC | 256 | — | 1 |
| AS18684US | WCM-ASN - Westfield Capital Management Company, LLC | 256 | — | 1 |
| AS62912US | VICTORIA-COLLEGE - Victoria College | 256 | — | 1 |
| AS393748US | LBMCAS01 - LBMC | 256 | — | 1 |