Hello, it's only been two months since my cell phone stopped. Why is it empty?

This may be because there are too many arrears, and then this number may be useless and it will become an empty number. Here are some irrelevant ones from Baidu Encyclopedia! ! !

The number used in China is 1 1, in which each segment has a different coding direction: the first three digits-the network identification number; 4th-7th digits-area code; Number 8- 1 1- user number. This number is the so-called MDN number, that is, the number that the calling user needs to dial when calling the mobile user of this network, and it adopts E. 164 coding mode; Stored in HLR and VLR, and transmitted on the map interface.

mobile phone number

The number used in China is 1 1, in which each segment has a different coding direction: the first three digits-the network identification number; 4th-7th digits-area code; Number 8- 1 1- user number. This number is the so-called MDN number, that is, the number that the calling user needs to dial when calling the mobile user of this network, and it adopts E. 164 coding mode; Stored in HLR and VLR, and transmitted on the map interface.

Chinese name

mobile phone number

Foreign name

mobile phone number

translate freely

The number set by the telephone management department for mobile phones.

Digital capacity

1 1

Involving operators

China Unicom, China Mobile, China Telecom.

quick

navigate by water/air

The development of mobile phone number segment: friendly tips on security issues in real-name registration system registration system

MDN structure

The structure of MDN number is as follows: CC+MAC+H0 H 1 H2 H3+ABCD, where:

CC: Country code, China uses 86.

MAC: mobile access code. This website adopts the network number scheme, 133.

H0h 1H2H3: HLR identification code, which is uniformly distributed by operators.

ABCD: Mobile subscriber number, which is assigned by each HLR.

Ma Hao section

China electronic signal branch

133、 153、 173、 177、 180、 18 1、 189、 190、 19 1、 193、 199

China Unicom Haoduan

130、 13 1、 132、 145、 155、 156、 166、 167、 17 1、 175、 176、 185、 186、 196

China mobile number department

134(0-8)、 135、 136、 137、 138、 139、 1440、 147、 148、 150、 15 1、 / kloc-0/52、 157、 158、 159、 172、 178、 182、 183、 184、 187、 188、 195[ 1]、 197、 198

China Radio and TV Station.

192

Other number segment

14 segment is divided into network card-specific segments: China Unicom 145, China Mobile 147 and China Telecom 149.

Virtual operator:

Telecom: 1700, 170 1, 1702, 162.

Mobile phones: 1703, 1705, 1706, 165.

Unicom: 1704, 1707, 1708, 1709,17, 167.

Satellite communication: 1349, 174

Internet of Things: 140, 14 1, 144, 146, 148.

Development history

Since 0: 00 on July 22nd, 1999, the number of digital mobile phones in China has increased to 1 1. This upgrade must take at least a few firsts: the first upgrade of the national telephone number, the first upgrade of the national mobile phone, and the largest number upgrade in the world [2]. China will become the first country with 1 1 digit since the establishment of ITU.

Digital "shortage" phenomenon

Since 1987, the mobile communication operation industry in China has been tumbling every year, reaching 24.98 million by the end of 1998. It is predicted that there will be 50 million mobile communication users in China by the year 2000.

With so many people crowded on the 10 digit, GSM network number resources are definitely not enough. At the end of 1997, the former China Telecom (in 2000, its mobile service was split and China Mobile was established) applied to the former Ministry of Posts and Telecommunications for three new network numbers: 137, 136 and 135, totaling *. According to the utilization rate of 60%, the original five GSM network numbers of China Telecom can only be allocated to 27 million, while the number of mobile communication users of China Telecom has reached 23.57 million at 1998. The former China Unicom (China United Communications Co., Ltd. and China Network Communications Group Company were reorganized and merged in 2009, and the new company was named China United Network Communications Group Co., Ltd., still referred to as "China Unicom" for short) has more than 600,000 users/kloc-0, and it is estimated that the number of users will reach 5 million by the end of the year. China's huge population makes us have to consider earlier than other countries in the world: whether we should do something for these 50 million users earlier.

Why did you add "0"

China Telecom initially explained that if only a new network number is added, the number source of 5 million to 6 million users can only be solved, and the capacity after upgrading has increased by 10 times, reaching about 250 million to 280 million. Theoretically, the number capacity of China Unicom has reached 1 100 million. Why do you want to add 0 after the third place? Because it keeps the number 139 (or 8,7,6,5), it is easy to remember.

The difficulty lies in the first strand.

According to the introduction of China Telecom, there have been many fixed-line upgrades in China before, but there has never been a national unified upgrade. For users, "adding' 0' is ok", but for staff, this job with multiple "first shares" titles is not easy to do. All preparations for promotion should be completed within one year. During this period, the GSM network in China has to do a lot of data modification: modify the local data several times; Mobile billing centers at all levels should complete the modification of billing software and data within the specified time to adapt to the coexistence of 10 and 1 1 bit; In addition to the mobile network itself, the upgrade also involves data modification of local telephones, long-distance and internationally owned switching equipment; Even magnetic card telephones, public telephones and so on.

Unicom spent 65.438+0.5 billion.