IMEI Generator
Generator Parameters
Generated IMEI
IMEI Number Structure
(8 digits)
(6 digits)
(1 digit)
Generate valid 15-digit IMEI numbers for device testing. Uses official Luhn algorithm verification. For development use only - illegal for real device tampering.
IMEI Generator: Valid Testing Numbers for Developers
What is this Tool?
The IMEI Generator creates valid 15-digit International Mobile Equipment Identity numbers using proper industry standards. These testing numbers follow the official Luhn algorithm verification and real-world IMEI structure. Perfect for app development, QA testing, and telecom system validation.
Key Formula: Luhn Algorithm
IMEIs use this verification system:
- Starting from right, double every 2nd digit
- If doubling results in >9, add digits together
- Sum all digits
- Valid if total modulo 10 equals 0
Example for 12345678901234?
:
Original: 1 2 3 4 5 6 7 8 9 0 1 2 3 4
Doubled: 2 2 6 4 10 6 14 8 18 0 2 2 6 4
Sum: 2+2+6+4+(1+0)+6+(1+4)+8+(1+8)+0+2+2+6+4 = 59
Check digit = (10 - (59 % 10)) % 10 = 1
Final IMEI: 123456789012341 ✅
How to Use
Set Parameters:
- TAC (8-digit device code)
- Generation count (1-100)
- Serial number mode (Random/Sequential)
Generate:
- Click “Generate IMEI Numbers”
- Results appear in right panel
Use Results:
- Copy individual IMEIs
- Regenerate specific numbers
- Export all for testing
Terminology Explained
Term | Meaning | Example |
---|---|---|
TAC | Type Allocation Code (device model) | 01176900 (iPhone) |
SNR | Serial Number (unique device ID) | 478956 |
CD | Check Digit (Luhn verification) | 7 |
IMEI | 15-digit device identifier | 490154203237518 |
Formula Source
The Luhn algorithm (ISO/IEC 7812-1) was created by IBM scientist Hans Peter Luhn in 1954. This industry-standard formula is used globally for:
- Credit card numbers (PAN)
- National ID numbers
- SIM card identifiers
- IMEI validation systems
FAQs
Q: Can I use these for real devices?
A: No - generated numbers aren’t registered with GSMA. Real IMEIs require manufacturer certification.
Q: Why do some IMEIs fail validation?
A: Our tool ensures 100% valid numbers. If failure occurs, check for:
- Extra spaces
- Missing digits
- Non-numeric characters
Q: Is this legal?
A: Yes for testing/development. Illegal if used for:
- Device cloning
- Fraudulent activation
- Bypassing carrier blocks
Q: Why 15 digits?
A: Standard IMEIs contain:
- 8-digit TAC
- 6-digit SNR
- 1-digit CD = 15 total digits
Critical Warnings
Legal Compliance:
- US federal law (18 U.S. Code § 1029) prohibits IMEI tampering
- FCC regulations ban unauthorized device modifications
Proper Usage:
- Only for software testing
- Never deploy to production devices
- Avoid numbers from real phones
Security:
- Generated IMEIs may conflict with real devices
- Cellular networks may flag test numbers
- Use only in isolated test environments
Ethical Guidelines:
- Disclose test device status
- Respect carrier policies
- Delete after testing