ARRL’s Logbook of The World® (LoTW®) is the 2nd most popular benefit among ARRL members. It is also an extremely popular service internationally for non-members, as it is the primary means for providing confirmations for ARRL Awards, such as DXCC and Worked All States.

As a part of the ongoing modernisation of the ARRL systems infrastructure, LoTW will be receiving major upgrades to the operating system it is running on, the relational database system it uses to store and access logbook and awards data, and server hosting, where it will be fully migrated to the cloud. These changes will, among other improvements, ensure LoTW performance needs can be better met based on user demand.

LoTW will be unavailable from 27th June to 2nd July 2025, to complete these upgrades. We will bring LoTW back online if it is available sooner than 2nd July 2025.

More Information - http://www.arrl.org/logbook-of-the-world