State-run carrier Viettel Group, which secured the adjacent B2-B2′ band (713–723 MHz/768–778 MHz) in a May auction, is excluded from bidding on the current 700 MHz blocks Key low-band spectrum returns to auction – Vietnam will re-auction the B1-B1′ and B3-B3′ blocks in the 700 MHz band, essential for improving 4G/5G reach and signal quality. […]