CDMA, which stands for Code Division Multiple Access, is a competing mobile phone technology to GSM on older networks that are gradually being phased out. In 2010, carriers worldwide switched to LTE, a 4G network that supports simultaneous voice and data use.
Code Division Multiple Access (CDMA)
You’ve probably heard of CDMA and GSM when you were told that you can’t use a certain phone on your cellular network because they use different technologies that are not compatible with each other. For example, you may have an AT&T phone that can’t be used on Verizon’s network for this reason or vice versa.
The CDMA standard was originally developed by Qualcomm in the US and is used primarily in the US and parts of Asia by other carriers.
Of the five most popular mobile networks in the United States, Sprint, Verizon and Virgin Mobile use CDMA. T-Mobile and AT&T use GSM.
