I got a strange text message today? Very strange! ! !

NDC: domestic destination code (139- 130), digital cellular mobile service access number.

Sn = H 1+H2+H3+* * *: user number. H 1, H2 and H3 are identification codes, indicating the HLR； to which the user belongs;

NDC+SN: domestic use, CC+DNC+SN: international use.

The number of the mobile phone SIM card. If the SIM card is lost, the IMSI number should be changed.

IMSI = MCC（460）+MNC（00）+MSIN（h 1h2h 3 * * * *）

MCC: National Mobile Phone Code

Mobile network number (Unicom is 0 1)

MSIN: mobile station identification code, where H 1H2H3 is different from SN's H 1H2H3.

TAC: vehicle type approval code (designated by European vehicle type center)

FAC factory allocation code (factory number)

Signal-to-noise ratio: the serial number assigned to the mobile phone by the manufacturer.

SP: standby

LAC: area code

Mobile phone identification code: the internal identification code of the mobile phone.

Once, my mobile phone was unfortunately stolen, and there was alarm software in it. Recently, I often receive alarm messages:

IMSI = 4600 154702 16 156

There are several CellID, such as 1046 1, 4947, 1607, 18737.