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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 |
| ABCFS-US - ABC |
| 256 |
| — |
| 1 |
| AS5068US | STACKSINC-GLOBAL - STACKS INC | 256 | 1 | 2 |
| AS63241US | GLP - Global Liquidity Partners, LLC | 256 | — | 1 |
| AS63012US | EBRSO - East Baton Rouge Sheriff | 256 | — | 1 |
| AS400392US | EMPIRE-1 - Empire Resorts, Inc. | 256 | — | 1 |
| AS399695US | MARSHALL-COUNTY-01 - Marshall County | 256 | — | 1 |
| AS40274US | PALISADE-CAPITAL - Palisade Capital Management, LP | 256 | — | 1 |
| AS394890US | DEW-AS - Dewpoint Inc | 256 | — | 1 |
| AS29821US | EFCU-INET - Elevations Credit Union | 256 | — | 1 |
| AS399424US | RELEASEPOINT1 - Releasepoint | 256 | — | 1 |
| AS397495US | TOWNOFOROVALLEY-02 - Town of Oro Valley | 256 | — | 1 |
| AS401136US | LCI-HQ - LC Industries Inc. | 256 | — | 1 |
| AS397781US | EWHEELERINC-01 - Linux Global | 256 | 1 | 2 |
| AS27624US | AS-ELCA-CWO - ELCA | 256 | — | 1 |
| AS402229US | ARIA-JAMES - Aria and James | 256 | — | 1 |
| AS21514US | LEGACY - LEGACY MARKETING PARTNERS, L.L.C. | 256 | — | 1 |
| AS62565US | INXOPEN - INX Open LLC | 256 | — | 1 |
| AS27347US | DATAPRO-NETWORKS - Datapro Telecom Solutions LLC | 256 | — | 1 |
| AS218155US | TWL Thalweg Labs LLC | 256 | 1 | 2 |
| AS393723US | GCLS-BGP-01 - Greenville County Library System | 256 | — | 1 |
| AS396935US | RI-TELEPHONE-01 - Rhode Island Telephone, Inc. | 256 | — | 1 |
| AS399603US | APPSYNERGY - APPSYNERGY INC | 256 | — | 1 |
| AS397977US | ANA-218-LB - American Nurses Association, Inc | 256 | — | 1 |
| AS46229US | MDE - Million Dollar Elm Casino | 256 | — | 1 |
| AS399287US | KRISPY-KREME - Krispy Kreme | 256 | — | 1 |
| AS22437US | CORESITE-SPARE - CoreSite | 256 | 1 | 2 |
| AS394110US | BNFP - Jaguar Land Rover Manhattan | 256 | 1 | 2 |
| AS393425US | CALACADEMY-NET - California Academy of Sciences | 256 | — | 1 |
| AS401312US | TUPELO - Gray Media, Inc. | 256 | — | 1 |
| AS393687US | DELAWARE-RIVER-AND-BAY-AUTHORITY - Delaware River and Bay Authority | 256 | — | 1 |
| AS22973US | NORWEST-VENTURE - Norwest Venture Partners | 256 | — | 1 |
| AS27558US | FAR-ASN - Florida Assoc of Realtors | 256 | — | 1 |
| AS1010US | WHT-ASN-01 - Walnut Hill Communications | 256 | — | 1 |
| AS21645US | ADA-CHICAGO - American Dental Association | 256 | — | 1 |
| AS27344US | READING-HOSPITAL - Reading Hospital | 256 | — | 1 |
| AS14997US | ASCENSION-TEXAS - Ascension Technologies | 256 | — | 1 |
| AS399981US | CRST-THE-TRANSPORTATION-SOLUTION - CRST THE TRANSPORTATION SOLUTION | 256 | — | 1 |
| AS3472US | DNIC-AS-03472 - United States Department of Defense (DoD) | 256 | — | 1 |
| AS206100US | ccr_ripe Circle Computer Resources Inc | 256 | — | 1 |
| AS400365US | SCH-K12 - School City of Hammond | 256 | — | 1 |
| AS402074US | SOFTIRON-ASN-RIC - SoftIron | 256 | 1 | 2 |
| AS19862US | BNB-22-AS - Bridgehampton National Bank | 256 | — | 1 |
| AS11362US | VECTOR - Vector Data Systems LLC | 256 | — | 1 |
| AS133052US | FXCM-ASIA-AS-AP - FX Corporate LLC | 256 | — | 1 |
| AS396530US | DCX-GOODYEAR1 - DCX Goodyear 1, LLC | 256 | — | 1 |
| AS398028US | PSFC-NYC - Park Slope Food Coop Inc | 256 | — | 1 |
| AS401202US | SPL-HQ - Sound, Production & Lighting LLC | 256 | 1 | 2 |