vf DE mostly use n78 80 MHz since 3400-3410 MHz is limited to indoor use only.
vf DE sometimes has n78 60 MHz on old Ericsson sites.
O2 DE sometimes has n78 60 MHz (although I'm not sure about this).
A1 BG stopped using EARFCN 250 in the Sofia metro this week.
vf DE mostly use n78 80 MHz since 3400-3410 MHz is limited to indoor use only. vf DE sometimes has n78 60 MHz on old Ericsson sites. O2 DE sometimes has n78 60 MHz (although I'm not sure about this).
A1 BG stopped using EARFCN 250 in the Sofia metro this week.