Is this number 19198252962 for mobile customer service?

Yes

This number is the mobile group business: MAS/Merchant Manager gateway number, which is simply a SMS platform.

It should be an internal employee of the mobile company or an agent channel who is developing the group short number business on a large scale. They want you and your relatives and friends to join the group network and enjoy call discounts. It is recommended that you consider applying if you have many phone calls with relatives and friends. After applying, you can check your call details in the next month to see if you and the number you recommended have enjoyed the free call discount. There will be text message reminders for all charging services handled by mobile numbers.

The SMS bulk sending platform is based on the SMS port directly provided by China Mobile, China Unicom and China Telecom and the Internet connection to realize batch sending and customized sending of SMS with customer designated numbers. It is divided into stand-alone versions of the software (with customers terminal) CS structure and network exclusive version BS structure.

There are two main types of SMS platforms: one is a software version that needs to be downloaded and installed locally, and the other is a web version of the SMS platform that is logged in through a browser. According to the "SMS Marketing Research Center", judging from the functional implementation of the two SMS platforms, they are basically the same. They both send group sending requests directly to the operator's server through the client.