What's the difference between mobile phone number and sim card number?

1. China mobile phone number (also called MDN number) uses the number 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.

2. There are 20 digits (ICCID number) on the 2.SIM card, and the first 6 digits are the network code: (898600) is the code of China Mobile (89860 1) is the code of China Unicom; (898603) is the code name of China Telecom;

The 7th digit is the service access number, which is 133, 136, 137, 138, 139 1, 5, 6, 7, 8 and 9 respectively. The eighth bit is the function bit of SIM card, which is generally 0, and the prepaid SIM card is 3;

The 9th and 10 are the province codes; 0 1: Beijing 02: Tianjin 03: Hebei 04: Shanxi 05: Inner Mongolia 06: Liaoning 07: Jilin 08: Heilongjiang 09: Shanghai 10: Jiangsu 1 1: Zhejiang 12: Anhui/. 8+08: Hunan 19: Guangdong 20: Guangxi 2 1: Hainan 22: Sichuan 23: Guizhou 24: Yunnan 25: Tibet 26: Shaanxi 27: Gansu 28: Qinghai 29: Ningxia 30: Xinjiang 3 1: Chongqing;

1 1 and 12 are year numbers; 13 is the supplier code; Numbers 14 ~ 19 are user identification codes; The 20th bit is the parity bit.

Second, the classification is different.

1. The mobile phone number is divided into: China electric signal segment, China mobile number segment, China Unicom number segment and other number segments.

2. The classification of 2.SIM card numbers is as follows:

① standard card: the size is 25mm×15mm× 0.8mm;

② Micro Sim: commonly known as small card, with the size of12x15mm× 0.8mm;

③、Nano SIM: 12.3mm×8.8mm×0.7mm .

Third, the capacity is different.

1, the mobile phone number has no concept of capacity, and the mobile phone number itself cannot store anything.

2. The storage capacity of 2.sim card number is 8KB, 16KB, 32KB, 64KB or even 1MB. Most of them are 16KB and 32KB. How many phone numbers and short messages can be stored in a SIM card depends on the capacity of EEPROM in the card.

Baidu encyclopedia-mobile phone number

Baidu encyclopedia -SIM card