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Free IMEI Generator — Generate Valid Random IMEI Numbers Online

Instantly generate Luhn-valid random IMEI numbers for 50,000+ device models across every major brand. Trusted by app developers, QA engineers, and repair technicians worldwide.

50,000+

Device models supported

271,000+

IMEIs generated to date

100%

Luhn-algorithm validated

Free

No registration required

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How it works

Generate a Random IMEI Number in 3 Steps

Our IMEI number generator produces format-valid, Luhn-verified results in under one second — no account, no captcha, no waiting.

STEP 01

Select a brand or model

Choose from Apple, Samsung, Google, Xiaomi, Motorola, and 40+ other brands. Leave it blank for a fully random IMEI from any registered TAC prefix. You can also specify the exact model for brand-accurate TAC codes. Each brand in our free IMEI generator is mapped to its correct GSMA-registered Type Allocation Code, so every result reflects a real device family.

STEP 02

Set your quantity and generate

Enter how many IMEI numbers you need, from 1 to 10,000, and click Generate. Each number is built using a real registered TAC prefix combined with a randomised serial segment, then validated with the Luhn algorithm. Results are automatically deduplicated so you never receive the same number twice in a single batch.

STEP 03

Copy and use your results

Click any IMEI to copy it individually, use Copy All for the full set, or download a CSV for direct import into your test suite, mock database, or inventory system. If you need to convert between formats, our IMEI to serial number converter and serial number to IMEI converter are also available for free.

Popular categories

Popular IMEI Generator Categories

Every brand uses its own registered TAC (Type Allocation Code) prefix. Our database maps 50,000+ TAC codes to the correct brand and model so your generated IMEI reflects the real device family.

iPhone 14 through iPhone 16 Pro Max

Apple iPhone

iPhone 14 through iPhone 16 Pro Max. Apple IMEI numbers use TAC prefixes registered by Foxconn and Pegatron. Our tool supports all current and legacy iPhone models from iPhone 5 onwards. Once you have finished generating test IMEIs for iPhone, you can also check a real device using our iPhone IMEI check tool.

Generate IMEI
Galaxy S24 Ultra through Galaxy A and M series

Samsung Galaxy

Galaxy S24 Ultra through Galaxy A and M series. Samsung registers TAC codes by production region, so a Korean and a US Galaxy S24 carry different prefixes. Our free IMEI generator accounts for both regional variants. If you are working with a locked Samsung device, visit our Samsung unlock page for carrier-specific unlock options.

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Pixel 6 through Pixel 9 Pro

Google Pixel

Pixel 6 through Pixel 9 Pro. Google self-designs and contract-manufactures its Pixel range. TAC codes are registered to Google LLC directly and are distinct from the Android reference hardware set. For unlocking a carrier-locked Pixel, see our Google Pixel AT&T unlock service.

Generate IMEI
Xiaomi 14, Redmi Note 13, and POCO series

Xiaomi / Redmi

Xiaomi 14 series, Redmi Note 13 series, and POCO X6. Xiaomi products ship under multiple brand registrations. Our database includes Xiaomi Inc., Redmi, and POCO TAC entries separately. For factory unlock services on Xiaomi devices, see our Xiaomi unlock page.

Why EasySimUnlocker

Why use our random IMEI generator?

Every feature is designed for professionals who need reliable, accurate IMEI data — not just a random 15-digit string.

Accuracy

Real TAC prefixes, not random digits

Every IMEI starts with a genuine, GSMA-registered Type Allocation Code. This means the brand and model section of the IMEI is accurate, which is critical for any test that parses the TAC to identify device type. You can verify detailed specs for any IMEI using our IMEI full device specification lookup.

Validation

Luhn algorithm checked every time

The 15th check digit is always calculated using the Luhn algorithm (ISO/IEC 7812), so every IMEI passes format validation. Apps that verify IMEI structure before processing will accept every number we generate. For a deeper look at how IMEI validation works, see our IMEI calculator details page.

Speed

Bulk batches up to 10,000

Generate up to 10,000 unique random IMEI numbers in a single click. Results are deduplicated — you never receive the same number twice in a batch, which matters for realistic simulation datasets.

Privacy

One-Click CSV Export

Download your full batch as a .csv file, ready to import directly into your test framework, mock API, app configuration, or inventory management system — no reformatting required.

Coverage

No Data Stored or Logged

All IMEI generation happens in your browser. We do not store, log, or transmit the numbers we generate. Your test data stays private.

Workflow

50,000+ Device Models

From the latest iPhone 16 Pro Max to legacy Android handsets, our TAC database covers 50,000+ device models across 45+ brands — updated quarterly against the GSMA's official registry.

IMEI structure

What makes a random IMEI valid?

A random IMEI number is a synthetic 15-digit identifier that follows the same structural rules as a real device IMEI but is not registered to any physical handset. It looks like a real IMEI, passes format checks, and carries a legitimate brand TAC — but it exists only in software.

The reason validity matters is simple: most software that processes IMEI numbers runs a format check before doing anything else. A system that receives a string of 15 random digits will reject it immediately if the Luhn check fails. By generating valid random IMEI numbers, you ensure your tests actually reach the code paths you're trying to exercise.

Developers use random IMEI numbers to populate test databases, simulate multi-device environments, and test device-specific API responses, all without tying tests to the IMEI of a physical device they may not have on hand. For a full explanation of what IMEI unlocking means in the real world, read our blog post on what is IMEI unlock.

The IMEI standard is defined by the GSMA (Global System for Mobile Communications Association) and standardised under ITU-T E.212. Every legitimate IMEI contains: an 8-digit Type Allocation Code (TAC), a 6-digit serial number, and a 1-digit Luhn check digit.

imei_structure_image_alt
Example structure35 601234 789012 3

TAC, serial, and the final check digit combine to create a format-valid 15-digit IMEI.

TAC8 digits

Identifies the registered device family and allocation block.

Serial6 digits

Creates variation inside the same device family range.

Check digit1 digit

Completes Luhn validation so the IMEI passes format checks.

Checksum flow

How the Luhn algorithm validates an IMEI

01

Double every second digit from the right

Double every second digit from the right. Starting from the rightmost digit (excluding the check digit), double every alternate digit.

02

Reduce any result above nine

Subtract 9 from any doubled value above 9. If doubling produces a two-digit number (e.g. 7 × 2 = 14), subtract 9 to get a single digit (14 − 9 = 5).

03

Add all resulting digits together

Sum all resulting digits. Add the untouched digits and all the doubled (and adjusted) digits together.

04

Choose the digit that makes the total divisible by ten

The check digit makes the total divisible by 10. Choose the digit (0–9) that brings the grand total to the next multiple of 10 — this is the 15th digit of every valid IMEI.

Use cases

Who uses the IMEI generator and how

Our free random IMEI generator is built for professionals who need accurate, realistic device identifiers for legitimate technical work.

App developers

Test device-specific code paths including push notification delivery, device analytics events, or hardware feature detection, without relying on a real device's IMEI. Generate brand-specific IMEIs to simulate iOS versus Android behaviour, or Pixel versus Galaxy differences, in your CI environment. Once development is complete, use our unlock eligibility check to verify real test devices are carrier-free before deploying.

Repair technicians

Verify that your device management software, point-of-sale system, or repair-tracking platform correctly parses and stores IMEI input before going live with customer devices. Also useful for training staff on IMEI identification without exposing real customer data. When you do handle real locked devices in your shop, our network unlock apps page covers the full range of carrier unlock options available.

QA engineers

Populate mock device registration databases with thousands of realistic IMEIs to load-test device management platforms, mobile MDM systems, or carrier provisioning APIs. Brand-specific generation means your test data reflects real-world TAC distribution, not a homogeneous synthetic set.

Educators and students

Teaching network architecture, mobile standards, or cybersecurity? Generated IMEIs let students explore device identification concepts, practise IMEI validation implementations, and run exercises involving the Luhn algorithm, all with safe, synthetic data. Our blog post on how to find an IMEI number on any phone is a useful companion resource for teaching the basics.

Advanced IMEI Usage

Generated IMEIs for Testing, Checks, and Responsible Use

These three sections are designed to fit naturally into the IMEI Generator flow, combining real-device verification guidance, development use cases, and lawful usage notes in the same visual language as the rest of the page.

Real Device Checks

How to Use Generated IMEIs Alongside Real Device Checks

Generated IMEIs are intended exclusively for testing and simulation. If you are working with a real device and need to verify its status, EasySimUnlocker provides a full suite of free IMEI check tools. Use the iPhone IMEI carrier lock check to confirm whether a device is still locked to a carrier, or the iPhone IMEI blacklist check to confirm it has not been reported lost or stolen. For warranty verification, the Apple warranty check tool returns current warranty status instantly using the device IMEI.

For devices that turn out to be carrier-locked, our free SIM unlock online service removes the lock permanently at the carrier database level. The process takes under three minutes and requires no payment. You can also run a full device history report using our iPhone GSX report tool, which returns activation history, Find My status, and warranty information in a single lookup.

Understanding the difference between a generated test IMEI and a real device IMEI is also worth reading about. Our blog post on what is the difference between SIM unlock and carrier unlock explains the underlying concepts clearly for both technical and non-technical readers.

Carrier Lock CheckBlacklist CheckGSX Report
Developer Workflows

IMEI Generator for Mobile App Development and Testing

Need more scale?

Need More Than 10,000 IMEIs?

Our bulk IMEI generator handles up to 10,000 numbers in a single export. For larger volumes or programmatic access, our API delivers IMEI generation at scale — with webhook support, format options, and rate limiting built in.

Use generated IMEIs only for lawful testing, simulation, education, repair training, and internal tooling.

Contact us about bulk generation
Advanced IMEI workflow

IMEI Generator FAQ

IMEI stands for International Mobile Equipment Identity. It is a unique 15-digit number assigned to every mobile device — phones, tablets with SIM slots, and mobile broadband dongles. Defined by the GSMA and standardised under ITU-T E.212, the IMEI lets carriers identify specific devices on their networks, block stolen handsets, and verify device authenticity during warranty claims. Every IMEI has three parts: an 8-digit TAC (Type Allocation Code) identifying the manufacturer and model, a 6-digit serial number, and a 1-digit Luhn check digit.

Generating random IMEI numbers for software development, QA testing, educational use, or inventory simulation is legal in virtually all jurisdictions. What is illegal — in the UK, USA, EU, and most countries worldwide — is physically programming a generated or altered IMEI into a real handset, using a fake IMEI to bypass a network block, or cloning another device's IMEI. Our tool is designed exclusively for legitimate software and data purposes. We include a full legal notice below.

No — and doing so is a criminal offence in most countries. In the UK, the Mobile Telephones (Re-programming) Act 2002 makes it illegal to change a phone's IMEI. In the United States, the Wireless Telephone Protection Act (18 U.S.C. § 1029) criminalises IMEI alteration. The EU Electronic Communications Code similarly prohibits it. Flashing a fake IMEI on a physical device can also expose you to fraud charges if the device is then used on a network under a false identity.

Each generated IMEI is built in three stages. First, we select a genuine, GSMA-registered TAC prefix for the chosen brand and model — this means the first 8 digits accurately identify the manufacturer and product family. Second, we generate a random 6-digit serial number segment. Third, we calculate the correct check digit using the Luhn algorithm (ISO/IEC 7812), ensuring the complete 15-digit number passes all standard IMEI format checks. The result is a number that is structurally indistinguishable from a real IMEI but is not registered to any device.

The Luhn algorithm (also called Mod 10) is a simple checksum formula defined in ISO/IEC 7812. It is used to validate a variety of identification numbers, including credit card numbers, SIM card ICCIDs, and IMEI numbers. The algorithm works by doubling every second digit from the right, subtracting 9 from any result above 9, summing all digits, and checking that the total is divisible by 10. The final digit of an IMEI (the check digit) is chosen specifically to make the sum divisible by 10. Every IMEI our tool generates passes this check.

Generate IMEI
Moto G, Moto Edge, and Razr devices

Motorola

Moto G, Moto Edge, and Razr series. Motorola, now Lenovo-owned, registers TAC codes in the United States and China. The Razr flip series uses a distinct TAC range from the standard Moto G lineup. Our Motorola unlock service covers all Moto models locked to AT&T and other US carriers.

Generate IMEI
OnePlus 12 through Nord CE series

OnePlus

OnePlus 12 through Nord CE series. OnePlus shares its parent company BBK Electronics with OPPO and Realme but maintains a separate TAC registration. Our tool correctly isolates OnePlus prefixes. Device unlocking for OnePlus is available through our OnePlus unlock service.

Generate IMEI
P and Mate series across legacy and newer models

Huawei

Huawei P and Mate series, including legacy GMS devices and post-2019 HMS models. Huawei TAC registrations include both international and mainland-China variants. Unlock services for Huawei devices are available on our Huawei AT&T unlock page.

Generate IMEI
Xperia 1, Xperia 5, and Xperia 10 series

Sony Xperia

Xperia 1 VI, Xperia 5, and Xperia 10 series. Sony Mobile registers TAC codes in Japan. Useful for testing apps that behave differently on Japanese OEM builds. For OPPO devices, our OPPO worldwide factory unlock service covers all lock levels.

Generate IMEI

Inventory and logistics teams

Seed a new warehouse management or asset-tracking system with realistic IMEI data before your first real device arrives. Generated IMEIs allow you to validate import formats, test barcode scanning workflows, and verify reporting — all without touching live stock.

Data analysts

Building an analytics demo or training a device-classification model? Use our bulk IMEI generator to create a statistically realistic device dataset — with brand TAC distribution weighted to match real-world market share if needed.

One of the most common professional use cases for a free IMEI generator is mobile app development. Apps that collect device fingerprints, run device-specific logic, or integrate with carrier APIs need realistic test data to function properly during development and staging. A hardcoded real IMEI creates privacy and compliance risks. A purely random 15-digit number fails format validation before it reaches the code being tested.

Our free IMEI generator solves both problems. Every generated IMEI carries a legitimate TAC prefix that identifies a real device family, combined with a randomised serial segment that is unique within your batch. This means device-classification logic, analytics tagging, and hardware-feature detection all behave as they would with real device data, without any compliance risk..

For developers building apps that also interact with carrier lock status, our mobile IMEI status checker app provides a live status lookup that can be tested alongside your generated IMEI datasets. The EasySimUnlocker safe check tool is also available for verifying that any IMEI you plan to use in production checks is clean and not flagged.

Status Checker AppSafe Check Tool
Compliance and Safety

Legal Notice and Responsible Use

Generated IMEI numbers are synthetic identifiers produced for lawful purposes only. Acceptable uses include software testing, QA simulation, mobile app development, repair technician training, academic education, and internal inventory seeding.

You must not use a generated IMEI to misrepresent a device's identity to a carrier, bypass network authentication, register a device under false pretences, or commit fraud of any kind. EasySimUnlocker does not store generated numbers and takes no responsibility for misuse.

For details on lawful device unlocking using your real IMEI, visit our free SIM unlock online . page For any questions about appropriate use, refer to our FAQ , review our terms and conditions , or contact us directly. Additional guidance on avoiding scams and identifying trustworthy unlock services is available in our blog.

Free SIM UnlockTerms and ConditionsFAQ
The free tool generates up to 10,000 IMEI numbers in a single batch. All results are deduplicated — the same number will never appear twice in a single batch. You can export any batch as a CSV file. If you need more than 10,000 numbers, or need programmatic access via API, contact our team.

No. All IMEI generation runs client-side in your browser using JavaScript. No generated numbers are transmitted to our servers, stored in a database, or logged in any way. The numbers exist only in your browser session until you close the tab.

A Type Allocation Code (TAC) is the first 8 digits of an IMEI. It is assigned by the GSMA to a specific manufacturer and identifies the brand, model series, and production variant of a device. For example, Apple's iPhone 14 Pro uses a different TAC than the iPhone 14 standard model, even though both are manufactured by Foxconn. Our IMEI generator uses real, registered TAC codes so the brand and model section of every generated IMEI is accurate — not just syntactically valid.

The IMEI generator at easysimunlocker.com is provided exclusively for lawful purposes including software development and testing, QA and quality assurance, educational use, device inventory simulation, and app development. We do not endorse and expressly prohibit any use of this tool to alter the IMEI of a physical device, bypass a carrier block, evade law enforcement tracking, or facilitate device cloning or fraud. Reprogramming a physical device's IMEI is a criminal offence in the United Kingdom (Mobile Telephones Re-programming Act 2002), the United States (18 U.S.C. § 1029), and most other jurisdictions. By using this tool you confirm that your use is lawful. See our full Terms of Service and Privacy Policy.

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