Can Taiwanese mobile phone cards be used in mainland China?

Can be used. The reasons are as follows:

Taiwan’s telecommunications companies generally use GSM, China Telecom is also GSM, and Asia Pacific Telecom is also CDMA.

Chunghwa Telecom is GSM, because most telecommunications companies in Taiwan are GSM, so most mobile phones in Taiwan support GSM, but there are also some CDMA, mainly Asia Pacific Telecom, so whether it is China Telecom Whether it’s a mobile phone or a phone number, you can use it in Taiwan.

Taiwan’s Chunghwa Telecom’s main businesses cover the three fields of fixed-line communications, mobile communications and data communications, providing voice services, dedicated circuits, Internet, broadband Internet access, intelligent networks, virtual networks, e-commerce, Enterprise integration services and various value-added services.

Extended information:

1. Taiwan 2G network system:

Taiwan’s 2G network is based on GSM. If the phone only supports GSM, you can use the phone's voice function and GPRS. Internet in Taiwan. Taiwan's support for 2G ends on June 30, 2017.

2. Taiwan 3G network standard:

Taiwan’s 3G network system is WCDMA. Mobile phones that support this system can be used on Taiwan’s 3G phone cards to access the Internet through the WCDMA system and use the following frequency bands. Far EasTone Telecom WCDMA1900MHz2100MHz; Taiwan Mobile 1900MHz2100MHz; Asia Pacific Telecom CDMA2000800MHz.

3． Taiwan 4G network standard:

Taiwan’s 4G network system is fdd-ltd. Mobile phones that support this system can apply for a 4G phone card in Taiwan and use the fdd-ltd system.