O2

Czech Republic ★★★ Verified Customer: 800-020-202

O2 Czech Republic is Czech Republic's second-largest mobile operator, formed in 2006 by the merger of Eurotel Praha and Český Telecom. Around 35% market share. Provides 4G/5G (99% population coverage). **Shares 2G network with T-Mobile**. USSD *104# for balance, *103*<14-digit voucher># for top-up. Moje O2 app for self-service. Customer care 800-020-202.