
Global GSM Shake-Up: 2G & 3G Fade as 4G Expands – Key Developments (Sept 12–13, 2025)
Key Facts Legacy Networks on the Way Out Around the globe, 2G and 3G networks – the original GSM-based systems – are being switched off at an unprecedented pace. Telecom regulators and operators are prioritizing 4G and 5G, citing the need to