I want to block text messages sent from a private number. Is there any way to block it?

The SMS filtering service mainly provides users with filtering methods for spam SMS or malicious SMS harassment. After subscribing to this service, users can set text message filtering conditions based on number, time period and keywords, and text messages that meet the filtering conditions will be automatically filtered out by the system. In this way, users can refuse to receive spam text messages and avoid being maliciously harassed. Applicable to China Telecom mobile users. The priority order of the four filtering conditions of the SMS filtering service is: time period filtering, blacklist or whitelist, and keywords. The same number cannot be set as both a whitelist and a blacklist. This feature is free. SMS messages sent to 10659190 will be charged according to normal SMS communication charges. It can be processed through the online business hall, mobile phone business hall, SMS business hall, and business hall. Send JSDXGL to 10001 to query the corresponding service introduction; send KTDXGL to 10001 to activate the SMS filtering service; send QXDXGL to 10001 to cancel the SMS filtering service. To learn more about service discounts, click the "official website" below and customer service 37 will answer your questions.