"Carry date to turn net " it is the user is below the premise that does not change mobile phone number, the network that believes operation businessman from one home appliance turns into another home appliance to believe the network of operation business, all sorts of services that enjoy its to offer. Simple for, need not change number to be able to change namely operation business. It is early by 2010, our country began to carry date to turn the net is pilot, to now close already 8 years, enclothe Tianjin, Hainan, Jiangxi, Hubei, Yunnan 5 provinces two period experiment, 11% what enclothe an user to occupy user of countrywide mobile phone to count about, that is to say at present the mobile phone user of 11% can enjoy our country take date to turn net. Be versed in the data that believe a ministry shows, end by June 2016, begin carry date to turn the 5 provinces with pilot net (city) shared more than 450 thousand user to use number to carry a service. Among them, chinese telecommunication is carried 168 thousand, carry piece 66 thousand; Chinese shift is carried 162 thousand, carry piece 250 thousand; Chinese UniCom is carried 147 thousand, carry piece 161 thousand. Will integratedly look, the user that turns into Chinese telegraphic network is most, and rate of China's floating user prediction of a person's luck in a given year is top. At present home has 5 provinces only (city) in pilot carry date to turn net, did not unlock in the round. Labour believes a telegraphic academy to report Cengzhi points out in vain, the user carries date to turn net difficulty is great, and investigate its reason, it is operation business to avoid user prediction of a person's luck in a given year, set all sorts of thresholds artificially through technical measure, prevent an user to carry piece. That after all who is the largest block? The author thinks, for the Chinese shift that has user advantage to providing, considering carry date to turn the network is larger to his negative effect, be in subjective going up is not to carry date to turn the advocate of net policy, it is the person that boycott even. From China actually mobile strong elapse moves 4G+ mobile phone to also can see clue come, the 2nd calorie of chamfer does not let flow stoutly, protect mobile data business, fear to was believed to dig a corner by UniCom report namely.