China Telecom in China: Coverage & Tips for Travellers
eSIM from 1,00 USD · 100 MB. Networks: China Mobile (5G), China Telecom (4G), China Unicom (5G).
China Telecom in China
Best for: Southern and coastal China
What to know
- Strong in Guangdong, Fujian and coastal cities
- Some eSIM plans specifically use CT for Hong Kong crossings
Areas where signal can drop
- Tibet Plateau and high-altitude Sichuan roads
- Remote karst mountains in Guangxi (Guilin countryside)
- Beijing subway tunnels (improving)
- Underground portions of the Great Wall (cave sections)
Other carriers in China
- China Mobile: Widest coverage including rural China
- China Unicom: Urban speeds and international roaming
If you have no signal (quick troubleshooting)
- Aeroplane mode for 10 s → disable.
- Confirm the eSIM line is set as "Mobile Data".
- Restart your phone.
- Settings → Network → Manual network selection → choose China Telecom.
- If nothing works: check the APN (sometimes needs manual configuration).