Sending text messages online to mobile phones can be found in communication companies?

When a mobile phone sends or receives short messages, it will pass through the short message center (SMC) of a telecom operator in the form of short message packets. The contents of short messages are contained in this short message packet, which is why communication companies can filter some sensitive words.

But don't worry, general communication companies will keep it strictly confidential and will never easily disclose this information, otherwise it will interfere with citizens' freedom of communication and privacy, but it can be found with the intervention of public security organs, so don't do illegal things through SMS.