The earliest mobile phone number started with "13". Thank you!

When allocating the number segment, we made some detailed planning, which is roughly like this:

Telecom service numbers starting with 10, such as 103 international semi-automatic registration, 108 international collect call, 1000 telecom service center,100/Unicom service center, etc.

1 1 begins with a special service number, such as 1 1 Fei Jing,11telecom internal test, 1 12 maintenance service,/kloc-0. 1 16 domestic manual remote inquiry, 1 17 time report, 1 19 fire alarm, etc.

At the beginning of 12, give civil special numbers, such as 120 (hospital), 12 1 (weather forecast), 122 traffic accident alarm, 126,1.