What's the 6-digit phone number starting with 9?

Problem description:

Last month, I received a 6-digit phone number starting with 9, saying that if I answered five questions correctly, I would get a call from 50 yuan. I pulled back two, and found that the question was too simple to answer again. As a result, by the end of the month, I found that the SMS fee was much higher. Recently, I was harassed by some text messages, all of which started with 9, such as 99 1999. I don't know if it costs money to receive those messages. What's more, I haven't called Unicom's customer service phone since I replied to that message, and I couldn't get through many times, which made me very depressed.

Analysis:

That's the port number of the message, not the phone number ~ ~ Ignore them next time, it's all a lie. Remember, there will be no pie in the sky, how can there be such a good thing ~ ~ ~ Give you 50 yuan for the phone bill? Be careful, don't worry about the 6-digit text messages. They are all advertisements.