Meaning of SIM card number ICCID number

ICCID: Integrate Circuit Card Identity integrated circuit card identification code (solidified in the cell phone SIM card). ICCID for the IC card's unique identification number, a total of 20 digital composition, the following detailed introduction.

1. First 6 places

network identifier

898600 is the code name of China Mobile.
898601 is the code name of China Unicom.
898603 is the code name of China Telecom.

2. The 7th digit is the service access number

1,5,6,7,8,9 in 133,135,136,137,138,139 respectively.

3. Bit 8 is the function bit of the SIM card

Generally 0, 3 for prepaid SIM cards.

4. The 9th to 10th digit is the code of each province

01: Beijing
02: Tianjin
03: Hebei
04: Shanxi
05: Inner *
06: Liaoning
07: Jilin
08: Heilongjiang
09: Shanghai
10: Jiangsu
11: Zhejiang
12: Anhui
13: Fujian
14: Jiangxi
15: Shandong
16: Henan
17: Hubei
18: Hunan
19: Guangdong
20: Guangxi
21: Hainan
22: Sichuan
23: Guizhou
24: Yunnan
25: Tibet
26: Shaanxi
27: Gansu
28: Qinghai
29: Ningxia
30: *
31: Chongqing

5. The 11th to 12th digits are year numbers

6. The 13th digit is the supplier code

Mobile is the number in the middle of the penultimate line, and cell phone card providers are as follows

0 - Schlumberger, France, manufacturer in Hunan. (The code name also includes Astro)
1-French GEMPLUS, manufacturers in Tianjin (this card in the chip contact point on the GEMPLUS mark)
2-Germany Ouga (the code name was later replaced by Wuhan Tianyu)
3-Jiangxi Jiede
4 -- Mobitai
5-Datang Telecom
6-Aerospace Jiuzhoutong
7-Beijing Grip
8-Oriental Inka
9-Beijing Huahong
a-Shanghai Kos
b -- Aerospace Intelligence

Unicom is an English letter, Unicom cell phone card suppliers are as follows

A-Oriental Inka
B-Buhl
C-Shanghai Kos
D. Obert
E -- Mobitai
G-France Gimps
H-Beijing Huahong
S. Schlumberger, France
T-Datang Telecom
W-Beijing Grip
Y-Wuhan Tianyu
J-Jiangxi Jide

7. Bits 14 to 19 are the user identification code.

8. Bit 20 is the parity bit

Note: Nowadays, the management of ICCID by carriers is quite confusing, so the above is not absolutely reliable.