The RSGB's ETCC report their first DAPNET POCSAG paging gateway application MB7PBR on 439.9875 MHz in Bognor Regis was licensed on 24th August 2018
The DAPNET (Decentralized Amateur Paging Network) is a network operated by radio amateurs. It consists of a server cluster feeding paging data to distributed transmitters usually on 439.9875 MHz with 4.5 kHz deviation.
The RSGB Emerging Technology Co-ordination Committee (ETCC) says future DAPNET POCSAG applications will also be allocated the MB7P+2 letter callsign series and will be processed as Packet Radio applications.
Application Form - https://www.rsgblicensing.org.uk/etccsecureforms/forms_central.php
DAPNET - Decentralized Amateur Paging Network (Twitter) - https://twitter.com/RWTHAmateurfunk
POCSAG - https://en.wikipedia.org/wiki/POCSAG