Enter a 15-digit IMEI. This page checks whether it is mathematically valid and identifies the exact Galaxy model behind it — model name, SM- code, regional variant and year.
Nothing you type is uploaded. The lookup file is downloaded to your browser and matched locally.
Most “IMEI checker” sites blur the line between identifying a model and reporting a device’s status. These are not the same thing, and the following cannot be derived from an IMEI without a paid or privileged data source:
A valid check digit proves the number is well-formed. It does not prove the number was ever issued, that the device exists, or that it is clean. Any site telling you otherwise from the digits alone is guessing.
Every IMEI is 15 digits, defined by 3GPP TS 23.003. It splits into three parts, which the tool above colours as you type:
| Digits | Part | What it means |
|---|---|---|
| 1–8 | TAC | Type Allocation Code. Identifies the manufacturer and the exact model variant. This is the part that gets looked up. |
| 9–14 | Serial | The individual handset’s serial number within that model. |
| 15 | Check digit | A Luhn checksum over the first 14 digits. Catches typos, nothing more. |
Take the first 14 digits. Starting from the rightmost of those, double every second digit. If a doubled value exceeds 9, subtract 9 from it. Sum every resulting digit. The expected check digit is (10 − sum mod 10) mod 10. If it matches digit 15, the IMEI is well-formed. The tool shows you the expected digit when it does not match, so you can spot which digit you mistyped.
The lookup returns a code such as SM-S928U1. Samsung encodes real information in it:
| Suffix | Typical variant |
|---|---|
| U | United States, carrier version |
| U1 | United States, factory unlocked |
| W | Canada |
| B | International 5G |
| F | International LTE |
| N | South Korea |
| 0 | Mainland China |
| Q, Z | Japan |
Treat these as the typical variant for that code, not a guarantee about your individual handset. A U model is usually a carrier version, but that is a statement about how Samsung ships that SKU — it is not a live check of whether your specific phone is locked right now.
Warranty status is tied to a device record Samsung holds, so it has to come from Samsung. There is no way to read it out of the 15 digits.
Use Samsung’s own warranty checker for your region and give it the IMEI or serial number. If you need the IMEI first, either dial *#06# or read it from Settings → About phone → Status. The model code this page returns is useful there — it tells you which regional Samsung site actually holds your warranty, which is the usual reason a warranty lookup comes back empty.
They are different identifiers and they are not interchangeable. The IMEI identifies the device on mobile networks and is standardised across the whole industry. The Samsung serial number is Samsung’s own record, encodes the factory and production date, and is what warranty and repair systems key on.
This page reads IMEIs. A serial number will not validate here, because it is not a 15-digit Luhn-checked number.
Nothing is transmitted. The device list is downloaded to your browser as a file and the match happens on your machine — there is no server call carrying your IMEI, and no log of it. That said, an IMEI is a device identifier: avoid posting yours publicly in forums or listings, as it can be used in cloning claims.
The device list does not cover every TAC ever allocated, particularly very new releases, obscure regional SKUs and older feature phones. An unknown result means the TAC is not in the list — it does not mean the IMEI is fake. The tool says “not in our list” rather than inventing a model, which is deliberate.
Not from the IMEI. The model code hints at how that SKU normally ships, but live lock status is held by the carrier. Put a different carrier’s SIM in and see whether it registers, or ask the carrier directly — in the US they will tell you free of charge, and unlock it free if the device is eligible.
Not here, and be careful with sites that claim to. Blacklist data comes from carrier and GSMA reporting, and the free consumer checks that exist are run by carriers and by marketplaces like Swappa. Use one of those, and treat a seller who will not give you the IMEI as an answer in itself.
No. The check digit is arithmetic over the other 14 digits — anyone can construct a number that passes it. It catches mistyping, not fraud. Matching the TAC to a plausible model is stronger evidence, but physical inspection and buying from somewhere with recourse matter more than any online lookup.
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Device data from the MoazEb/tac-database project, used under the MIT License. Not affiliated with or endorsed by Samsung.