Buying a new, used, or refurbished phone is not just about comparing the camera, storage, display, and price. Before you pay, it is worth checking the phone’s IMEI number to confirm that the device details match the handset you are about to buy.
In India, buyers can use the government’s Know Your Mobile (KYM) service to verify a phone’s IMEI details. The 15-digit IMEI number can be checked by sending KYM <15-digit IMEI> to 14422. The service can provide details such as the manufacturer, device type, brand, and model.
This check gives you another way to verify the phone’s identity before buying it. If the information returned by the service does not match the phone, its packaging, or the seller’s description, that is something you should investigate before paying.
But how do you check the IMEI, what should you compare, and what do different KYM results mean? We cover these points in this guide so you can make a more informed decision when buying a new, used, or refurbished smartphone.
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An IMEI check takes little time and can help you spot a device-status problem before you pay.
This guide is based on official Department of Telecommunications and CEIR information, along with a review of existing buying guides. No handset was personally tested, and no individual Amazon listing is endorsed.
Quick answer: how to check a phone before buying
- Dial *#06# on the phone to display the IMEI number.
- For a dual-SIM phone, note both IMEI numbers.
- Check that the number matches the box and invoice.
- Send KYM <15-digit IMEI> to 14422.
- Compare the returned brand and model with the device.
- Do not complete the purchase if the result is blacklisted, duplicate or already in use.
Official SMS format
>
KYM 123456789012345
>
Send the message to 14422. Replace the example with the handset’s actual IMEI. Do not publish a real IMEI in a screenshot.
What is an IMEI, and why does it matter?
The International Mobile Equipment Identity (IMEI) is a 15-digit identifier assigned to mobile equipment. It identifies the handset rather than the SIM card or the customer’s mobile number. The official CEIR website explains that each SIM slot can have its own identifier, so dual-SIM phones may display two IMEIs.
That distinction matters when buying a used phone. A seller can provide a working device, but the phone may still have a blacklisted, duplicated or mismatched device identity. An IMEI check does not replace a full inspection, but it adds an important verification step before money changes hands.
Sidebar: IMEI is not the same as a phone number
The IMEI identifies the physical handset. The SIM identifies the mobile connection. Sanchar Saathi’s separate TAFCOP service concerns mobile connections registered in a person’s name; it is not the same as a phone authenticity check.
How to find the 15-digit IMEI number
One common quick method is to open the phone dialer and enter *#06#. The IMEI should appear on the screen. The official CEIR guidance also says that the number may be printed on the retail box or shown on the bill or invoice.
The Settings path can help when the dialer code does not work:
| Phone type | Where to look | Why it helps |
| Android | Settings → About phone → IMEI; the wording can vary by manufacturer | Provides an on-device record to compare with the box and invoice |
| iPhone | Settings → General → About | Provides an on-device record to compare with the box and invoice |
| Dual-SIM or eSIM phone | Check every listed IMEI | One SIM-slot record can differ from the other |
| Box or invoice | Look for the printed IMEI label or purchase record | Helps identify a box or invoice mismatch |
If the phone, box and invoice show different numbers, pause the transaction. A mismatch can have several explanations, but it should be resolved before purchase rather than ignored.
How to check IMEI on Sanchar Saathi with KYM 14422
The SMS route is useful when a buyer is standing in a shop or has limited internet access.
Option 1: SMS verification
Type the word KYM, add a space, and enter the complete 15-digit IMEI. Then send the message to 14422.
KYM <15-digit IMEI number>
The official CEIR page identifies this as the KYM 14422 verification method. The response can include the manufacturer, device type, brand and model.
Option 2: Sanchar Saathi web verification
Use the official Sanchar Saathi KYM page. The current page presents an online verification flow that may request a captcha, mobile number and OTP before the IMEI is submitted.
The web interface can change. For that reason, use the live government page rather than relying on an old screenshot or an unofficial mirror.
Option 3: Official CEIR information page
The CEIR website links to the handset-genuineness service and explains the meaning and purpose of the IMEI. It is a useful reference when a third-party article gives incomplete instructions.
What do blacklisted, duplicate and already-in-use results mean?
A warning or mismatch should be read carefully. The result tells you to pause or avoid the purchase, but it does not by itself explain the full history of the phone.
| Result or warning | Safe buyer response | What not to assume |
| Blacklisted | Do not buy until the issue is resolved through official channels | Do not assume the exact history without documentation |
| Duplicate | Treat it as a serious red flag and stop the transaction | Do not claim a counterfeit conclusion without additional verification |
| Already in use | Recheck the digits and compare the device, box and invoice; pause the purchase if it persists | Do not invent a cause from the result alone |
| Brand or model mismatch | Ask the seller to explain and verify the handset independently | Do not treat one mismatch as a complete forensic finding |
| Clean or matching result | Continue with warranty, seller, physical and invoice checks | Do not call the phone “100% genuine” based only on IMEI |
The official CEIR page specifically advises avoiding a mobile device when the status is black-listed, duplicate or already in use.
A matching IMEI is a useful checkpoint—not a substitute for checking the seller, invoice, warranty and physical phone.
Does a clean IMEI prove that a phone is genuine?
No. It supports the identity and status of the handset, but a buyer should still verify the rest of the transaction. A genuine phone check should combine the government IMEI lookup with these checks:
- Compare the IMEI shown in Settings with *#06#, the box and the invoice.
- Confirm that the returned brand and model match the phone being sold.
- Check the storage, colour, camera layout, ports and operating-system information against the advertised model.
- Confirm the seller’s name, invoice details, return period and manufacturer warranty terms.
- For an online delivery, photograph the sealed package and record the unboxing before discarding packaging.
- Keep screenshots of the KYM response, with the IMEI partially redacted before sharing.
An IMEI check is one part of a wider verification process. It cannot confirm every physical component, the seller’s ownership, battery condition or warranty eligibility.
Buying a used or refurbished phone in India: a practical checklist
With a second-hand phone, you may not know its ownership or repair history. Complete the checks below before payment or before the return window expires.
| Check | What to compare | Decision point |
| IMEI identity | Phone screen, *#06#, box and invoice | Stop if the numbers do not match and the seller cannot explain why |
| KYM status | SMS or official Sanchar Saathi result | Avoid blacklisted, duplicate or already-in-use results |
| Device details | Returned brand, model and manufacturer | Pause if the result does not match the handset |
| Seller documents | Invoice, seller identity and return terms | Prefer a transaction with traceable documentation |
| Physical condition | Screen, frame, cameras, ports and buttons | Test before accepting the phone |
| Software state | Reset status, account lock and activation information | Do not accept a device that remains linked to another person |
| Evidence | Unboxing photographs, screenshots and invoice copy | Preserve records until the return period ends |
What if the IMEI on the phone and box does not match?
Do not pay until the mismatch is explained and independently verified. It may indicate the wrong box, an administrative error, a replaced device or a more serious device-identity problem. The correct response is to preserve evidence and ask the seller or platform for a documented resolution—not to guess that the phone is genuine or counterfeit.
Should both IMEIs be checked on a dual-SIM phone?
Yes. Each SIM slot can have its own IMEI. Check both and retain both responses. A buyer should not treat one clean result as enough when the second identifier has not been checked.
Sanchar Saathi, CEIR and TAFCOP: what is the difference?
These names can appear together, but they serve different purposes.
| Service | Main purpose | Relevant to this article? |
| Sanchar Saathi | Government portal for citizen-focused telecom services | Yes; it hosts the handset-genuineness route |
| CEIR | Central Equipment Identity Register and related lost/stolen handset services | Yes; it provides IMEI and handset-status information |
| KYM | Know Your Mobile handset-verification service | Yes; use KYM <IMEI> to 14422 |
| TAFCOP | Checks mobile connections registered in a person’s name | Separate use case; it does not verify handset genuineness |
Use the official Sanchar Saathi portal for the current service links.
What should be done after a suspicious result?
First, do not complete the purchase or continue using a device that appears to have a serious identity problem. Save the SMS or web response, photograph the phone and packaging, and keep the invoice and seller conversation.
Next, contact the seller or marketplace through a traceable channel. Ask for a written explanation and a return or refund according to the applicable terms. If the device is reported lost or stolen, use the official CEIR and law-enforcement channels rather than attempting to alter or bypass the IMEI.
The official CEIR lost/stolen handset service is intended for the relevant owner or complainant. A buyer should not assume that an unknown seller can automatically clear a flagged device.
What competing guides cover—and what they often miss
Most IMEI guides explain how to find the IMEI and use SMS, web or app verification. This guide also covers both SIM-slot IMEIs, phone-box-invoice matching, seller documentation, evidence preservation and the limits of a clean result. That is useful for readers searching how to verify a refurbished phone in India or how to check if a phone is stolen in India.
The more useful distinction is between an IMEI status check and a complete purchase decision. That distinction is especially important for readers searching India phone authenticity checklist or how to verify a refurbished phone in India or how to check if a phone is stolen in India.
Frequently asked questions
Is the KYM 14422 IMEI check free?
The official CEIR and Sanchar Saathi pages provide the SMS method but do not state that the SMS is free. If you are concerned about charges or delivery, check your mobile operator’s SMS terms.
Can the IMEI be checked without internet?
Yes. The official SMS method uses KYM <15-digit IMEI> sent to 14422, so it does not require the buyer to open the web portal.
Can a blacklisted phone be unblocked?
Do not assume that a buyer can unblock it. Lost or stolen handset matters should be handled through the official CEIR process by the relevant owner or complainant. Start with the official CEIR service page and keep purchase evidence.
What does “already in use” mean?
It means the IMEI is already recorded as being in use. It does not, by itself, explain why. Recheck the IMEI digits, compare the phone with the box and invoice, and ask the seller for documented clarification. Do not buy until the result is resolved.
Is *#06# the correct IMEI code?
Yes. Dial *#06# to display the IMEI on many mobile phones. The official CEIR guidance also mentions the packaging and bill as places where the IMEI may appear.
Final verdict: should the IMEI be checked before buying a phone?
Yes. The official KYM 14422 process is a practical first filter for new, used, refurbished and marketplace phones in India. It can help buyers compare the handset’s official device information with the product being offered.
It should be treated as one part of a wider buying decision. Check both IMEIs where applicable, match the phone with the box and invoice, confirm seller and warranty information, and preserve evidence. If the result is blacklisted, a duplicate, already in use or inconsistent with the handset, do not proceed until the issue has been resolved through reliable official or seller channels.
Have a question about IMEI verification, used phones, or refurbished smartphones? Leave a comment below. If you found this guide useful, follow us for more practical buying guides and technology advice, and let us know what you would like us to cover next.
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