I don't really want to change my mobile number

In China, there'a a concept that "ramble" in mobile nouns. That means, when your mobile number card moves to another city, it is called "ramble". Chinamobile will cost you the ramble charge and long-distance charge. The ramble charge is 0.6 or 0.8 yuan per minute; the long-distance charge is 0.07 yuan per minute. So, when your mobile number card is in another city, you will spend 1.3 or 1.5 yuan per minute for your mobile charge. When you talked by the mobile for 100 minute, you should pay 150 yuan, it's about 17.5 dollars. How expensive it is!

I have bought 3 mobile number cards ever. In 2001, I worked in Beijing, and in 2004, I went to Shantou, I reckoned I would work there, so I changed it as my second number and gave up the Beijing's number. 2 months later, I went to Shenzhen and would work in Shenzhen for a long time, then I changed it again. Now, my number is Shenzhen's.

Friends always told me don't change the mobile number card, I also wished not to change. Why can't the mobile number card change the card's city that needn't to change the number? Technically it can realize, but Chinamobile said, "Every number card has the city locus, we won't change the number datas." For example, 1391072**55 and 1391072**53 are all in Beijing, they won't change like this: 1391072**55 is Shenzhen's number, 1391072**53 is Tianjian's number.

In truth, to change the mobile number is very discommodious. But we have to do so.