MSIN (Mobile Subscription Identification Number)

What is MSIN (Mobile Subscription Identification Number)?

The Mobile Subscription Identification Number (MSIN) is a unique nine-digit number that identifies a mobile phone subscriber. It is assigned by the mobile network operator and is used to identify the subscriber across all their services. It is similar to the International Mobile Subscriber Identity (IMSI) and it is used to authenticate and authorize access to services, such as voice, data, and multimedia.

The MSIN is the mobile equivalent of an email address or a username: it’s a unique identifier that helps the mobile network operator identify the user. It is stored in the SIM card and is used to identify the user when they register for services, such as voice, data, or multimedia services, or when they make a call or send a text message. It is also used for billing purposes, so the mobile network operator can accurately charge for the services used. The MSIN is also used to authenticate and authorize access to the network, so the user can securely access their services.

Is it the same as the phone number?

No, the MSIN is not the same as a phone number. The MSIN is a unique nine-digit number that is assigned by the mobile network operator and stored in the SIM card. The phone number is the actual number that is used to make calls and send text messages.

How does it work?

The MSIN works by identifying the user’s SIM card when they register for services or make a call or send a text message. The MSIN is used to authenticate and authorize access to the network, so the user can securely access their services. It is also used for billing purposes, so the mobile network operator can accurately charge for the services used.