Overview

• Two Russian voice transmissions on Sep 8–9 featured the call signs NZhTI and HOTEL and number groups including 38, 965, 78, 58, 88, and 37.
• A widely shared 64‑second clip captured a male voice reading names that form the call signs before repeating the number sequences.
• City, University of London professor David Stupples says the Russian government is almost certainly behind the station and that such use would not be for peaceful purposes.
• Monitors note NZhTI also appeared in a May broadcast reported around the time of a Trump–Putin phone call, yet the codes remain untranslated.
• The station’s exact site and purpose remain unconfirmed, with reports variously placing it outside St. Petersburg or near Moscow and describing it as a long‑running numbers station.