When did the short message address 50 120 become 12 1 14?

Yes 12 1 14. It's just a typo Please copy mine downstairs and follow my mistake, haha.

These are two different things.

50 120 is short message addressing. Sending the website name to 50 120 will reply its mobile website address. For example, sending a 3G bookstore to 50 120 will give you a reply to the website of the 3G bookstore.

12 1 14 is the port number of the Ministry of Information Industry, and it is also the national unified number of the Ministry of Information Industry on short message addressing. The owner is the Ministry of Information Industry. In the future, it is possible to standardize all kinds of short message addressing port numbers to this number, and how to implement it depends on the guidance and specification of the market and the Ministry of Information Industry!