5.375 in the Radio Frequency Table Allocation of Ireland.

Planned maintenance in progress on 25th June between 15:00 – 23:00. Users may experience intermittent service disruption during this window.

Content Type: ITU FOOTNOTE
Title: 5.375
Description: The use of the frequency band 1 645.5-1 646.5 MHz by the mobile-satellite service
(Earth-to-space) and for inter-satellite links is limited to distress, urgency and safety
communications (see Article 31). (WRC-23)
Source: https://search.itu.int/history/HistoryDigitalCollectionDocLibrary/1.43.48.en.101.pdf