What are the 4G codes of China Unicom, China Telecom and China Mobile?

Unicom: 4g: TDD-LTE/FDD-LTE.

Telecom: 4g: TDD-LTE/FDD-LTE.

For 4g, the current mobile 4g network coverage is good. For 3g, Unicom's 3g network is the fastest. Most mobile phones support GSM network, so you can only use the mobile phone corresponding to the mobile phone operator's version.

Extended data:

China Mobile Service Code Set:

1. Send CXBX to 10086 to check the number of messages left in the current month's package.

2. Send CXGFX to 10086 to inquire about the remaining traffic of Fetion GPRS package in that month.

3. Send CXGTC to 10086 to inquire about the remaining flow of GPRS package in the current month.

4. Send CXCCT to 10086 to inquire about the remaining traffic of the super-listening package in the current month.

5. Send CXGLL to 10086 to inquire about the total GPRS traffic used in the current month.

6. Send CXDX 120 to inquire about the number of remaining short messages in the alternative scheme "SMS 120" in the current month.

7. Send CXDX500, and inquire about the number of remaining SMS messages in the optional plan "SMS 500" in the current month.

8. Send CXCXB to inquire about the remaining MMS quantity of the optional MMS package in the current month.

9. Send CXIP 1000 to inquire about the remaining call duration of the optional plan "IP 1000" in the current month.

10. Send CXMDX to inquire about the number of SMS messages remaining in the month of "SMS Package (50 pieces 1 month)" that M plans to redeem.