[BO2] ps5 hacker got my phone number

Me and 5 of my mates were playing bo2 on ps5 doing a few games of SnD, about 10 games in one of my buddies starts getting spam called, then another friend and another until all 6 of us are being repeatedly spam called from different locations in England?

Has anyone else encountered this on the Ps5 port? And does anyone know if this is inherently dangerous/malicious?