Choose another country to see content specific to your location

//Select Country
About
Careers
Press and Media
Select your location
Industries & Services
Industries
Chemical & Process
Flow Measurement
National Measurement System
Consumer Products & Retail
Audio, Visual & IT Equipment
Electrical & Electronics
Wearable Devices
See All
Clean Energy
Hydrogen
Nuclear Power
Healthcare & Medical Devices
Medical Devices & IVD
See All
Infrastructure & Rail
Telecoms & IT Infrastructure
See All
Manufacturing
Components & Equipment
Machinery & Robotics
Transportation
Aerospace & Defence
Automotive & OEM
Marine
Real Estate
Buildings
Building Advisory Service
Lifts, Escalators & Façade Access
Services
Auditing & System Certification
Testing Services
Product Certification
Inspection
Technical Advisory
Global Market Access
Training
Cyber security
Risk Management
Sustainability Services
Resources
Resources
Resource Centre
E-ssentials Newsletters
Accreditations & Approvals
Certificate Finder
Events
Quotation Notes
Insights
About TRUST Magazine
Annual Report
Stories
How can we help you?

Have a requirement or need some help? Contact us to find out how we can help you.

//Contact Us
Locations Contact Us
Locations Contact Us
Worldwide

IMEI Number Structure

Adding value with our service portfolio

The TAC number (the first 8 digits) allocated by the Reporting Body plus the serial number (6 digits) assigned by the TAC holder gives 14 digits of the 15 digit IMEI number.

The fifteenth digit is the Check Digit. This is calculated from the other fourteen digits by the TAC holder using the Luhn formula. An example of the calculation is given in 3GPP specification TS 23.003.

Currently, the IMEI structure is as follows:

   

EXPLORE

wireless communication devices

Certification of wireless communication devices

Ensure your wireless devices are certified safe for use and fully compliant

Download

TL 9000 Quality management system telecommunications

TL 9000 Quality management system for telecommunications

Demonstrate the high quality and reliability of your ICT system

Download

Risk Assessment
Webinar

Risk assessments for the Radio Equipment Directive

Get exclusive insights into new risk assessment requirements.

Learn more

Compliance with the European Union new Radio Equipment Directive
White paper

A new frequency

Manufacturers are required to test and show compliance of any radio and telecoms equipment under the Radio Equipment Directive.

Learn more

VIEW ALL RESOURCES

Next Steps

// Contact Us
// Subscribe
// View Locations
LinkedIn Instagram Youtube Twitter

Select your location

Global

Americas

Asia

Europe

Middle East and Africa