Joke Collection Website - Public benefit messages - How does Telecom find out which numbers have sent messages to itself?

How does Telecom find out which numbers have sent messages to itself?

Hello, first of all, thank you for your support to China Telecom. According to your description,

You can check. You can log in to Anhui Telecom's online business hall for query, as shown below:

China Telecom's 4G is officially commercialized! Enjoy the world of 100 megabits. Tianyi 4G shares a better life. For more exciting content, please pay attention to the online business hall of Anhui Telecom. Please pay close attention to the latest preferential activities announced by Anhui Telecom's online business hall and the official Weibo. Please keep asking questions. I wish you a happy life, thank you!