CEIR Mobile Block: How to Block Lost or Stolen Phone by IMEI (2026 Guide)

1. Direct Answer: How to Block a Lost or Stolen Mobile on CEIR

• Block the Stolen SIM & Get a Duplicate SIM: Contact your telecom operator (Jio, Airtel, Vi, BSNL) immediately to block the lost SIM. Visit an official retail store to get a replacement duplicate SIM with the same number. *(Note: TRAI regulations enforce a mandatory 24-hour SMS freeze on reissued SIMs; you can either wait 24 hours to receive the CEIR OTP or use an alternate active family mobile number for OTP. To ensure no unauthorized numbers have been procured using your identity documents, see our guide on Checking Unknown SIMs on Sanchar Saathi TAFCOP. If you also receive suspicious fraud or extortion calls, learn How to Report Fraud Calls on Sanchar Saathi Chakshu).*
• File a Digital Police Report: File a digital Lost Article Report (LDR) or e-FIR on your state police portal. Save the PDF copy containing the Police Complaint Number.
• Submit the CEIR Blocking Request: Visit ceir.sancharsaathi.gov.in, click "Block Stolen/Lost Mobile", enter your device's 15-digit IMEI 1 (and IMEI 2 if dual-SIM), upload the police complaint PDF, and submit via OTP.
• Save Your 18-Digit Request ID: Within 24 hours of submission, the IMEI is blacklisted across all Indian telecom networks. Save the Request ID to track status and to unblock the phone if it is recovered.

2. CEIR Lost/Stolen Mobile Escalation Workflow

The following flowchart illustrates the end-to-end journey from reporting a lost device to blacklisting and eventual unblocking:

3. Essential Prerequisites Before Submitting a CEIR Request

Before opening the CEIR portal, gather these four mandatory requirements to ensure your submission is processed without rejection:

A. Your 15-Digit IMEI Number(s)

Every mobile handset has a unique 15-digit International Mobile Equipment Identity (IMEI) number. Dual-SIM phones have two numbers: IMEI 1 and IMEI 2. Both must be blocked.

• On Phone Packaging: Check the original retail box or the barcode sticker.
• On Purchase Invoice: Locate the printed bill or digital invoice (Amazon, Flipkart, retail store), where IMEI is listed.
• Via Google Find My Device (Android): Go to google.com/android/find, sign in with the Google account linked to the lost phone, and click the device info (i) icon next to your device name to display the IMEI.
• Via Apple ID (iPhone): Log into appleid.apple.com, navigate to the Devices section, and select your iPhone to view the IMEI/MEID.

B. The 24-Hour TRAI Duplicate SIM Rule & OTP Workaround

• Under Telecom Regulatory Authority of India (TRAI) and DoT security mandates, when an operator issues a replacement duplicate SIM card, SMS service is barred for 24 hours from activation to safeguard against SIM swap banking fraud.
• Because CEIR sends a verification OTP via SMS:

* Option 1: Wait 24 hours after duplicate SIM activation until SMS service resumes to receive the OTP on your original phone number.

* Option 2 (Immediate Workaround): Enter your lost phone number in "Mobile Number 1", but in the "Mobile Number for OTP" field, provide an active mobile number belonging to a family member or secondary device. This allows you to complete the CEIR blocking request immediately without waiting 24 hours.

C. Official Police Complaint (e-FIR or Lost Article Report)

• CEIR requires a valid police complaint number and a clear uploaded copy (PDF/JPG/PNG) of the police document.
• Most Indian states provide an online portal to file a Lost Article Report (LDR) or e-FIR without visiting a police station in person (e.g., Delhi Police Lost Property Portal, UP Police Citizen App/Portal, Maharashtra Police Lost Property, Tamil Nadu Police, Karnataka e-Lost).
• Note down the Police Complaint Number, Police Station, and District.

D. Owner Identity Proof & Purchase Invoice

• Identity Proof (Mandatory): Self-attested copy of Aadhaar Card, Voter ID, PAN Card, Passport, or Driving License.
• Purchase Invoice (Recommended): Uploading a clear copy of your smartphone bill helps verify ownership and accelerates the approval process.

4. Step-by-Step Guide: How to Submit "Request for Blocking Lost/Stolen Mobile" on CEIR

Follow these steps on the official Government of India portal:

Step 1: Open the Official CEIR Blocking Form

• Visit the official portal: ceir.sancharsaathi.gov.in (or go to sancharsaathi.gov.in and select "Block Stolen/Lost Mobile").
• The form "Request for blocking lost/stolen mobile" will appear.

Step 2: Fill in Device Information

• Mobile Number 1: Enter the phone number that was active in SIM slot 1.
• Mobile Number 2: Enter the secondary phone number if you used a dual-SIM setup.
• IMEI 1 & IMEI 2: Enter the 15-digit IMEI 1 (mandatory) and IMEI 2 (for dual-SIM phones).
• Device Brand & Model: Select the smartphone manufacturer and model name from the dropdown list.
• Upload Purchase Invoice: Attach a PDF or image of the original phone purchase bill.

Step 3: Fill in Lost Information

• Lost Place: Enter the city, locality, or landmark where the device was lost or stolen.
• Lost Date: Select the date of the incident from the calendar.
• State, District & Police Station: Select the state, district, and jurisdictional police station where you filed the complaint.
• Police Complaint Number: Type the exact complaint or registration number from your police report.
• Upload Police Complaint: Upload a clean, legible PDF or image copy of the police report.

Step 4: Fill in Mobile Owner Personal Details & OTP

• Owner Name: Enter your full legal name as shown on your government ID.
• Address: Provide your current residential address.
• Upload Identity Proof: Select the ID type and upload a scanned copy of your ID.
• Identity Number: Enter the corresponding ID number (e.g., Aadhaar/PAN number).
• Email ID: Enter your email for communication and updates.
• Mobile Number for OTP: Enter an active mobile number that can immediately receive SMS. Click Get OTP.
• Enter the 6-digit OTP, check the declaration statement, and click Submit.

Step 5: Save Your 18-Digit Request ID

• Upon successful submission, an 18-digit Request ID will be displayed on the screen and dispatched via SMS.
• Secure this Request ID immediately. It is required to track the request status and to unblock the device once it is found or recovered.

5. How CEIR Blacklisting and Police Traceability Work

It is vital to understand the difference between network blacklisting and physical phone recovery:

[!NOTE]

Understanding the Realistic Outcome: CEIR neutralizes the black-market resale value of a stolen smartphone in India and generates automated investigative leads for law enforcement. However, physical recovery depends entirely on state police follow-up and investigation.

6. How to Check Your CEIR Request Status

You can check whether your smartphone has been blacklisted or is currently under review:

• Visit ceir.sancharsaathi.gov.in and click "Check Request Status".
• Enter your 18-digit Request ID.
• Complete the security captcha verification and click Submit.
• Status Meanings:

* Success / Blocked: The device's IMEI has been successfully blacklisted across all Indian telecom operator networks.

* In-Process / Pending Verification: The request is undergoing verification with telecom operators or the concerned police database.

* Rejected: The submission failed validation (typically due to mismatched IMEI digits or an illegible police complaint copy). If rejected, review the reason, correct the details, and re-submit.

7. How to Unblock a Recovered Mobile Handset on CEIR

If your lost smartphone is returned by the police or found by you, follow this official unblocking protocol to restore cellular network service:

Standard Unblocking Process

• Go to ceir.sancharsaathi.gov.in and click "Un-Block Found Mobile".
• Enter your original Request ID (received during blocking).
• Enter the mobile number that was provided for OTP notifications.
• Reason for Unblocking: Select the appropriate option from the dropdown:

* *Found by Self*

* *Recovered by Police*

* *Blocked by Mistake*

* *Other Reason*

• Enter your active mobile number for OTP verification, submit the OTP, and click Submit.
• The IMEI is removed from the national blacklist across all telecom service providers within 24 hours, restoring full cellular calls and data.

Troubleshooting: "Please unblock this device from state police portal where blocking request was submitted"

• Why This Error Occurs: In several states (such as Karnataka, Telangana, Maharashtra, and Delhi), citizens or police officers initiate device blocking directly through the State Police CCTNS or local Cyber Cell portal rather than the central CEIR citizen form. In such cases, the central CEIR portal displays this message because the block origin is tied to the state police system.
• How to Resolve:

1. If the blocking was logged through a state police portal, submit the unblocking application through that exact same state police portal.

2. If the phone was handed over to you by the police, request the investigating officer or District Nodal Police Officer to mark the device as "Recovered" in their internal CCTNS/CEIR police portal. This automatically initiates the unblock across telecom networks.

8. What to Do If You Forgot Your CEIR Request ID

If you misplaced or accidentally deleted the SMS containing your Request ID:

• Visit ceir.sancharsaathi.gov.in and click on "Forgot Request ID".
• Enter the mobile number that was provided for OTP notifications during your original submission.
• Complete the captcha and click Get OTP.
• Enter the verification OTP to have your original 18-digit Request ID sent to your mobile phone via SMS.

9. Pre-Purchase Verification: Know Your Mobile (KYM)

Before purchasing any second-hand, refurbished, or used smartphone, verify that the device is authentic and has not been reported as stolen or blacklisted:

• Via Sanchar Saathi Portal: Go to sancharsaathi.gov.in -> Know Your Mobile (KYM).
• Via SMS: Send KYM <15-digit IMEI> to 14422 from any mobile.
• Via KYM Mobile App: Download the official "KYM - Know Your Mobile" app from Google Play Store or Apple App Store.
• The system checks the IMEI against the manufacturer database and alerts you if the device status is *Blacklisted*, *Duplicate*, or *Invalid*.

10. Frequently Asked Questions (FAQs)

Q1: How do I block a lost or stolen mobile phone on CEIR using IMEI?

Answer: Visit the official portal ceir.sancharsaathi.gov.in, select "Block Stolen/Lost Mobile", enter your 15-digit IMEI 1 and IMEI 2, upload your digital police complaint PDF, and submit via OTP. The device is blacklisted across all Indian telecom networks within 24 hours.

Q2: Is filing a police complaint mandatory before blocking a phone on CEIR?

Answer: Yes. Under official DoT guidelines, you must enter a valid Police Complaint Number and upload a digital copy of your police complaint (such as a Lost Article Report or e-FIR) to submit the CEIR blocking request.

Q3: Why am I not receiving the CEIR OTP on my newly issued duplicate SIM?

Answer: Under TRAI and DoT regulations, newly issued duplicate SIM cards have an automatic 24-hour SMS freeze to prevent SIM swap fraud. You can either wait 24 hours for SMS service to activate or enter an alternate active mobile number (belonging to a family member) in the "Mobile Number for OTP" field.

Q4: How long does CEIR take to block a mobile phone across all networks?

Answer: Once your blocking request is successfully submitted with valid police and IMEI details, the device's IMEI is blacklisted across all Indian telecom service providers (Jio, Airtel, Vi, BSNL) within 24 hours.

Q5: Can a blacklisted phone on CEIR still be used if someone inserts a new SIM card?

Answer: No. Blacklisting operates at the hardware IMEI level. Any new SIM card inserted into the device will be rejected by telecom towers. Furthermore, the network logs the attempt and transmits a traceability alert to the police.

Q6: Does CEIR guarantee that my lost or stolen mobile phone will be recovered?

Answer: No. CEIR blocks network access across India to eliminate the phone's resale value and provides traceability leads to law enforcement. However, physical recovery depends entirely on police investigation and field tracking.

Q7: How do I check the status of my CEIR blocking request?

Answer: Go to ceir.sancharsaathi.gov.in, click "Check Request Status", enter your 18-digit Request ID, and complete the captcha to view whether your device is Blocked, In-Process, or Rejected.

Q8: How can I unblock my smartphone on CEIR after recovering it?

Answer: Visit ceir.sancharsaathi.gov.in, select "Un-Block Found Mobile", enter your original Request ID, select the reason (Found by Self / Recovered by Police), and verify with an OTP to restore cellular connectivity.

Q9: What should I do if CEIR says "Please unblock this device from state police portal"?

Answer: This message appears when the initial blocking request was logged through a State Police portal or CCTNS system rather than directly on CEIR. You must submit the unblock request on that same state police portal or request the investigating police officer to mark the handset as recovered in their system.

Q10: How do I find my lost mobile phone's IMEI number without having the physical device?

Answer: You can find your IMEI on the original retail packaging box, on your printed or digital purchase invoice, via Google Find My Device (google.com/android/find) by clicking the device info icon, or on your Apple ID account page (appleid.apple.com) under Devices.

11. Legal & Regulatory Disclaimer

*This guide is published by ComplaintAdda for citizen educational, consumer safety, and cyber awareness purposes. ComplaintAdda is an independent civic information platform and is not affiliated with the Department of Telecommunications (DoT), CEIR, Sanchar Saathi, or any law enforcement agency. To access official government services, always use official websites ending in .gov.in.*