The IMEI (International Mobile Equipment Identity) is a unique 15-digit identifier assigned to every mobile device. Think of it as a serial number for your phone — no two devices share the same IMEI.
On most smartphones, dial *#06# on the keypad — the IMEI appears instantly on screen. You can also find it in Settings → About Phone, or on a label inside the battery compartment (older models) or on the original box.
Our free IMEI checker lets you verify any device status instantly using this number.
Governments and carriers worldwide use IMEI databases to combat mobile device theft. When a phone is reported stolen, law enforcement or the owner can request that the IMEI be added to the GSMA IMEI Database blacklist. Once blacklisted, the device may be blocked from connecting to cellular networks in participating countries — even after a factory reset.
For businesses, IMEI verification is a standard part of due diligence. Wholesale buyers, insurance companies, and marketplace platforms increasingly require proof that a device is clean before completing a transaction. A five-second IMEI check can prevent costly mistakes.
The 15-digit IMEI includes a Type Allocation Code (TAC) identifying the manufacturer and model, a serial section, and a Luhn check digit. Our free checker decodes the TAC to show brand, model, and specifications when the device is in our database.
Independent phone retailers, eBay and marketplace sellers, corporate IT asset managers, insurance adjusters, and everyday consumers buying a single used device all benefit from IMEI checks. The process takes seconds and can prevent losses ranging from $50 to $1,500 per device.
While serial numbers identify a unit for warranty purposes, IMEI is the global standard for network-level identification. Carriers, GSMA, and law enforcement systems rely on IMEI — not serial numbers — for blacklist enforcement.
Check once before every purchase. If a device sits in inventory for more than 30 days, re-check before sale — status can change if the original owner reports loss or stops paying a finance plan.
Free TAC-based lookups show model and specifications. Professional checks query live carrier and manufacturer databases for blacklist, lock, Find My, warranty, and finance status. Match the check level to your risk: casual buyers need blacklist + activation lock; wholesalers need the full suite.
ABC Fusion provides professional device verification and IMEI status services for authorized resellers, repair shops, and mobile retailers. Our free public checker at uapi.relock.net offers basic model identification. Registered business accounts can access comprehensive carrier, blacklist, warranty, and Apple status checks through relock.net.
Important: Verification results are informational. Always confirm critical purchase decisions with the manufacturer or carrier. We provide status data only — not device modification services on our public website.
Whether you buy one phone for personal use or hundreds for resale, the verification workflow is the same: collect IMEI, run database checks, compare results to seller claims, inspect hardware, and document everything. Skipping any step exposes you to fraud, chargebacks, and inventory losses that far exceed the cost of a professional check.
Marketplace platforms increasingly expect sellers to provide IMEI verification reports. Generating a check report before listing builds buyer confidence and reduces return rates. For high-value flagship models (iPhone Pro, Samsung Ultra series), a $0.05–$0.50 verification cost protects a $500–$1,200 purchase — an obvious return on investment.
The global used smartphone market moves billions of devices annually. GSMA, carriers, and manufacturers maintain databases specifically to combat theft and fraud. Professional verification services like ABC Fusion connect resellers and consumers to these databases through legitimate API channels — providing the same data access that large refurbishers and insurance companies rely on daily.
New to device verification? Start with our free tool at uapi.relock.net to practice IMEI lookup. Read our Knowledge Base categories: IMEI Basics for fundamentals, Buying & Resale Guides for marketplace safety, and Apple Device Guides for iPhone-specific checks. Business users can register for API access and bulk checking on relock.net.
Explore more articles in this Knowledge Base category. For policy questions see our Privacy Policy and Terms & Conditions. Contact support via Contact Us or email relock.net@gmail.com.