संचार मंत्रालय

MINISTRY OF COMMUNICATIONS

Know Your Mobile (KYM)

Through KYM, you can check the validity of your mobile device even before buying it. IMEI is written on the mobile packaging box. It could be found on the mobile bill/invoice. From your mobile you can check the IMEI number by dialling *#06#, IMEI number will be shown on mobile screen. If the status of the mobile is shown as Black-listed, duplicate or already in use, please avoid buying the mobile. KYM could be used through any of the following 3 methods.

SMS

Type KYM <15 digit IMEI number> from your mobile and send the SMS to 14422.

KYM app

Download the KYM app from Play Store (for Android) or from App Store (for iOS).

Web portal

To use the web portal, click here.

 CEIR Launch


 Frequently Asked Questions


With the aim to curtail the counterfeit mobile phone market and discourage mobile phone theft, protect consumer interest and facilitate law enforcement authorities for lawful interception, DoT intends to implement Central Equipment Identity Registry (CEIR) that connects to the IMEI database of all the mobile Operators. CEIR acts as a central system for all network Operators to share black listed mobile devices so that devices blacklisted in one network will not work on other networks even if the Subscriber Identity Module (SIM) card in the device is changed.
The user should block the IMEI of their phone if it has been lost/stolen.
The user can block the phone's IMEI by any one of the following means:
  • Through a form submitted on this website. The procedure to do it is as follows: -
    1. File a report with the police, and keep a copy of the report.
    2. Get a duplicate SIM Card for the lost number from your telecom service provider (eg, Airtel, Jio, Voda/Idea, BSNL, MTNL etc.). This is essential because you will need to provide this as the primary mobile number (OTP will be sent on this number) while submitting the request for blocking your IMEI.
      Note: As per TRAI's regulation, SMS facility on re-issued SIMs is enabled after 24 hours of SIM activation.
    3. Get your documents ready - a copy of police report and an Identity Proof must be provided. You can also provide the mobile purchase invoice.
    4. Fill out the request registration form for blocking the IMEI of lost/stolen phone, and attach the required documents. Click here to go to the form.
    5. After submitting the form, you will be given a Request ID. The same can be used for checking the status of your request and for unblocking the IMEI in future.
  • Through TSP’s specified customer outlets.
  • Through State Police.
After the successful submission of blocking request, the user's phone is blocked within 24 hours. After the phone has been blocked, it cannot be used on any network across India.
Note: This does not prevent the police from tracking the lost/stolen phone.
The user should unblock the IMEI of their phone only if it has been found and is in possession of the user.
To unblock a lost/stolen phone's IMEI, the user has to report to local Police that it is found. After that user can unblock the phone by any one of the following means:
  • Through a form submitted on this website. The procedure to do it is as follows: -
    1. Fill out the request registration form for unblocking the IMEI of found phone. Click here to go to the form.
    2. After submitting the form, the IMEI will be unblocked.
  • Through TSP’s specified customer outlets.
To register a fault, follow the given procedures: -
  • Fill out the Fault Registration Form. Click here to go to the form.
  • After submitting the form, a unique Ticket ID will be generated.
  • The form details will be mailed to your given mail id as well.
  • Save the Ticket ID and Registered Mobile Number for further use.
To check the fault status, follow the given procedures: -
  • Fill the Ticket ID and registered mobile number in the Fault Status Form. Click here to go to the form.
  • A 6-digit OTP will be sent to registered mobile number. Confirm the OTP received.
  • Submit the form and the Ticket Details will be available to you.