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2. China Mobile - Wikipedia

   en.wikipedia.org/wiki/China_Mobile

   China Mobile is the largest wireless carrier in China, with 945.50 million subscribers as of June 2021. [7] China Mobile was ranked #25 in Forbes' Global 2000 in 2023. [8] China Mobile Limited is listed on the Hong Kong Stock Exchange. [2]

3. Prepaid mobile phone - Wikipedia

   en.wikipedia.org/wiki/Prepaid_mobile_phone

   Direct from some open-loop prepaid cards featuring a mobile refill service. Through electronic reloading where a specially designed SIM card is used to reload a mobile phone by entering the mobile number and choosing the amount to be loaded. This process is widely implemented in the Philippines and India so that any person can be a prepaid load ...

4. SIM lock - Wikipedia

   en.wikipedia.org/wiki/SIM_lock

   A SIM lock, simlock, network lock, carrier lock or (master) subsidy lock is a technical restriction built into GSM and CDMA [1] mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks.

5. China Unicom - Wikipedia

   en.wikipedia.org/wiki/China_Unicom

   China United Network Communications Group (China Unicom) is a Chinese state-owned telecommunications operator. Originally founded as a wireless paging and GSM mobile operator , it currently provides a range of services including mobile network, long-distance, local calling, data communication, Internet services, and IP telephony.

6. Digital renminbi - Wikipedia

   en.wikipedia.org/wiki/Digital_renminbi

   On July 11, 2023, Bank of China, China Telecom, and China Unicom announced the joint launch of SIM card-based e-CNY wallets, which allow offline payments using the SIM's NFC function. [27] In October 2023, digital yuan was first used in the cross-border crude oil settlement by PetroChina, the listed arm of China National Petroleum Corporation ...

7. SIM card - Wikipedia

   en.wikipedia.org/wiki/SIM_card

   A typical SIM card (mini-SIM with micro-SIM cutout) A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).