Articles
Guides and tutorials about IMEI numbers, device identification, and mobile security.
How to Check if an IMEI Is Valid (Luhn Algorithm Explained)
Learn how to check whether a 15-digit IMEI is valid using the Luhn algorithm — with a step-by-step guide and a fully worked example.
What Is a TAC (Type Allocation Code)? IMEI's First 8 Digits
The TAC is the first 8 digits of every IMEI and reveals the device make and model. Learn how Type Allocation Codes are assigned and how to read one.
Bulk IMEI Generator: Generate Thousands of Test IMEIs for QA & Automation
Generate thousands of valid IMEI numbers at once for QA automation, database seeding, load testing, and mobile app development. Free bulk IMEI tool guide.
iPhone IMEI Generator: Apple TAC Codes & iOS Testing
Generate valid iPhone IMEIs for iPhone 15, 14, 13 and 12 app testing, MDM development and iOS QA with Apple TAC and Luhn context.
Samsung IMEI Generator: Galaxy TAC Codes & Testing
Generate valid Samsung IMEIs for Galaxy S, Z Fold, Z Flip and A-series testing. Learn TAC codes, Knox, MDM and QA workflows.
IMEI Blacklist Check: How to Verify a Phone Isn't Stolen Before Buying
Learn how to check if a phone's IMEI is blacklisted before buying it used, how IMEI blacklists work, and what gets a phone blocked.
What Is an IMEI Number? Everything You Need to Know
Learn what an IMEI number is, how to find yours, what the 15 digits mean, and why this identifier matters for your phone's security and resale value.