Plus

Poland ★★★ Verified Customer: 601-102-601

Plus is Poland's largest local mobile operator, owned by Polkomtel, founded 1996. Around 22% market share. Provides nationwide 4G/5G. **Important: From 2025, Plus has discontinued most USSD activation codes in favour of SMS to 2601**. USSD *100# for balance, *123*<voucher># for top-up, *101*11*24# for 4G LTE activation, *136# for plan management, *122# for voicemail. iPlus app for self-service.