Is It Safe to Share Your IMEI Number?

Is it safe to share an IMEI number? Generally, yes—provided you share it privately with a genuine buyer, mobile provider, insurer, repair centre or trusted device-checking service.

If you are buying a used phone, the IMEI allows you to check the handset before paying. A quick MyMobiCheck IMEI check can help you identify important lost, stolen, blocked or blacklist indicators that are impossible to confirm from photographs alone.

Buying a second-hand phone? Ask the seller for the IMEI privately, match it to the handset and check the device with MyMobiCheck before sending payment.

For sellers, a genuine request for the IMEI is not normally a warning sign. Careful buyers need the number to check whether the phone may have been reported lost, stolen or blocked. Likewise, mobile providers and repair services may require it to identify the exact handset.

However, an IMEI should still be handled carefully. Avoid publishing the complete number openly in a marketplace listing, social-media post or public photograph. Instead, send it privately to a person or organisation with a clear reason to request it.

An IMEI alone does not give someone access to your photographs, messages, passwords or bank account. Nor does entering the number into an ordinary checking service reveal the phone’s live location. Nevertheless, it uniquely identifies the handset, so you should not distribute it unnecessarily or combine it with account credentials, security codes and other sensitive information.

This guide explains what an IMEI reveals, whether someone can use it to track, hack, clone or blacklist a phone, and how buyers and sellers should handle the number safely during a second-hand transaction.

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What is an IMEI number?

IMEI stands for International Mobile Equipment Identity. It is normally a 15-digit identifier assigned to a mobile phone or another cellular device.

The GSMA describes the IMEI as a unique device identifier. In other words, it identifies the handset rather than the person using it.

An IMEI is different from:

your mobile phone number;
the number stored on your SIM;
your Apple Account or Google Account;
your screen PIN or password;
the phone’s serial number;
an eSIM EID;
the SIM card’s ICCID.

Simple definition: An IMEI number identifies the mobile device itself. It does not contain your photographs, messages, passwords or other files stored on the phone.

Is it safe to share an IMEI number?

In most legitimate situations, yes. A full IMEI often needs to be shared privately so that another party can identify or check the handset.

Reasonable recipients include:

a genuine buyer considering the phone;
your mobile network provider;
an authorised repair centre;
a trade-in or recycling business;
an insurer processing a valid claim;
a trusted IMEI-checking service;
the police following a theft report.

Even so, safe sharing depends on the context. A marketplace buyer asking privately so that they can check the phone is understandable. By contrast, a stranger asking for the IMEI, account password, one-time security code and proof of identity together should raise concern.

Practical rule: Share the IMEI privately when there is a clear device-related reason. Do not publish it openly or provide unrelated account credentials alongside it.

Why would a used-phone buyer ask for the IMEI?

A careful buyer should ask for the IMEI before purchasing a second-hand phone.

The number allows them to run a device-status check and confirm that the handset matches the seller’s description.

What might the buyer want to check?

Depending on the checking service and available data, an IMEI check may help show:

the expected make and model;
whether the device has been reported lost or stolen;
possible blacklist or network-block status;
insurance-related indicators;
finance-related concerns where available;
whether the submitted identity appears inconsistent;
whether further investigation is needed before payment.

Therefore, a genuine request is not automatically suspicious. In fact, refusing to provide any way to verify the device may make a legitimate buyer less willing to proceed.

How can the buyer check it safely?

Private buyers can use MyMobiCheck to run a single-device IMEI check before completing a purchase.

Meanwhile, phone shops, recyclers and higher-volume traders can use MobiCHECK within a professional device-checking workflow.

What can someone find out from your IMEI?

The information available depends on who is using the number and which data sources they can access.

A basic IMEI lookup may identify:

the phone manufacturer;
the model family;
the device type;
the Type Allocation Code;
whether the number has a valid format.

A more complete device-status check may also show relevant lost, stolen, blocked, blacklist, insurance or finance indicators where those records are available.

What does an IMEI not reveal by itself?

An ordinary IMEI check does not provide direct access to:

your photographs or videos;
text messages or emails;
WhatsApp conversations;
banking apps;
saved passwords;
your screen-lock code;
your Apple or Google password;
your live microphone or camera;
the phone’s precise live location.

Consequently, an IMEI should not be confused with a password or remote-access key.

Can someone hack your phone with the IMEI number?

An IMEI number alone does not provide direct access to the operating system, files, apps or accounts on the phone.

Simply knowing the IMEI does not allow an ordinary person to:

unlock the screen;
read private messages;
open your banking apps;
install software remotely;
control the camera;
discover your account passwords.

However, scammers may combine a device identifier with other information during a social-engineering attempt. For example, they could pretend to represent a network, insurer or repair centre and then ask for a password or one-time security code.

What information should never accompany the IMEI?

Do not provide:

your Apple Account or Google Account password;
online-banking details;
one-time passcodes sent by text or email;
the full answer to account-security questions;
remote-access permission;
photographs of identity documents without a valid reason;
your SIM PIN or PUK code.

Therefore, the main security risk is often the wider conversation rather than the IMEI alone.

Can someone track your phone with the IMEI?

A member of the public cannot normally enter an IMEI into a website and see the phone’s live location.

Mobile network operators use IMEI information alongside their network systems to identify devices connecting through SIM cards. However, access to network-location information is not provided through an ordinary consumer IMEI lookup.

Apple’s Find My and Google’s device-location tools also require the relevant account, security controls and prior device setup. Merely knowing the IMEI does not give a stranger access to those services.

Why do people say phones can be tracked by IMEI?

The phrase usually refers to capabilities held by mobile networks or authorised law-enforcement processes, not a public tracking function.

For example, a provider may use the IMEI to identify a device on its network or to block a handset after a valid lost or stolen report. Nevertheless, the number alone does not give an online buyer a live map of the seller’s movements.

Location rule: An ordinary buyer cannot track your live location merely because you shared the phone’s IMEI. Live location requires access to network data, a linked device account or another authorised location service.

Can someone clone a phone using its IMEI?

Knowing an IMEI is not the same as cloning a phone.

IMEI duplication or reprogramming involves altering device identifiers through technical interference. In the UK, changing a mobile phone’s unique IMEI or offering to do so is prohibited under legislation relating to mobile telephone reprogramming.

The GSMA also maintains rules intended to preserve unique identifiers and detect known or suspected duplicate IMEIs.

Can sharing the number cause cloning?

Seeing the number does not automatically allow a person to duplicate the phone, copy its data or take control of the customer’s mobile account.

Even so, publishing complete identifiers openly is unnecessary. Restricting access reduces the chance of the number being copied into false listings, suspicious paperwork or other misleading activity.

If a checking result suggests that an IMEI is duplicated or inconsistent, the handset should be investigated before purchase or resale.

Can someone blacklist your phone with the IMEI?

Mobile providers use IMEI numbers when blocking phones reported lost or stolen. Ofcom therefore advises phone owners to keep a record of the number in case they need their provider to block the handset.

However, an ordinary marketplace buyer should not be able to submit a reliable block request merely by possessing the IMEI. Networks normally need account, customer or claim verification before applying or removing a device block.

Could a false report still create a dispute?

Fraudulent or mistaken reports can create complications, particularly when a phone’s ownership history is unclear.

Accordingly, sellers should retain:

the original purchase receipt where available;
the marketplace listing;
messages with the buyer;
proof of payment;
the phone’s IMEI and serial number;
proof of delivery or collection;
a signed receipt for higher-value sales.

These records do not guarantee that every dispute will be resolved immediately. Nevertheless, they help establish which handset changed hands and when.

Should you publish an IMEI in an online listing?

Publishing the complete IMEI on eBay, Facebook Marketplace or another public listing is usually unnecessary.

Instead, mention that the number is available privately to serious buyers for checking.

Why is private sharing better?

A private exchange:

limits unnecessary copying of the identifier;
reduces the chance of fake listings using your device details;
lets you identify who requested the number;
keeps the public advert cleaner;
allows the buyer to complete a legitimate status check.

Before sharing it, review the buyer’s profile, transaction history and communication. Although none of these checks proves honesty, they provide useful context.

Should you hide part of the number?

A partial IMEI can show that you possess a device identifier, but it will not normally allow the buyer to run a complete status check.

Therefore, a serious buyer may need the full number. Share it through the platform’s private messaging system rather than adding it to the public description.

How sellers should share an IMEI safely

A structured process protects both sides of the sale.

Safe IMEI-sharing checklist

First, confirm the number directly from the phone.
Next, check whether the device has IMEI 1 and IMEI 2.
Make sure the number matches the handset being advertised.
Share it privately with a serious buyer.
Explain that the buyer may run a device-status check.
Avoid sending account passwords or security codes.
Keep screenshots of the transaction conversation.
Record the final buyer, date, payment and device handed over.

When meeting in person, allow the buyer to dial *#06# or view the identifier in Settings. That approach helps confirm that the number belongs to the physical handset.

How buyers should use an IMEI before paying

Receiving an IMEI is only the beginning of the checking process.

Match the number to the phone

At the handover, compare the submitted number with:

the IMEI displayed in Settings;
the result from dialling *#06#;
the device model and SIM configuration;
the box or receipt where available;
IMEI 2 on dual-SIM devices.

Do not rely solely on a screenshot sent before the meeting. A dishonest seller could provide the IMEI from another handset.

Run the check before money changes hands

Use a trusted device-status service before completing the purchase.

A private buyer can run a single-device check through MyMobiCheck. The result can support a better decision about whether to continue, ask further questions or walk away.

Even after a clear result, inspect the phone for:

Activation Lock or Google FRP;
MDM or Remote Management;
network-lock restrictions;
screen and battery faults;
camera, audio and charging problems;
an IMEI mismatch;
signs of unauthorised repair.

Why a clean IMEI check is not a complete guarantee

An IMEI result is an important risk check, but it cannot prove every fact about a used phone.

For example, it may not establish:

that the seller legally owns the handset;
that no report will be submitted later;
that every component works correctly;
that account locks have been removed;
that the phone has no hidden liquid damage;
that the serial number and repair history are genuine;
that the transaction itself is not fraudulent.

Consequently, buyers should combine the IMEI result with seller checks, physical inspection, functional testing and a clear payment record.

Why might the status change later?

A phone can be reported lost or stolen after an initial check. Likewise, an insurance claim or another status update may reach relevant systems later.

For business users, MobiCHECK+ supports repeat checks and device monitoring over a defined period. This can help professional buyers reduce exposure to post-purchase status changes.

When is it normal for a company to request an IMEI?

Several legitimate services need the IMEI to identify the exact device.

For example, the number may be requested during:

mobile-network activation;
eSIM setup;
network unlocking;
a warranty or repair booking;
a trade-in quotation;
an insurance claim;
a lost or stolen phone report;
business asset management;
device-status checking.

Apple and Google both provide official instructions for locating an IMEI because support, repair and mobile-service processes may require it.

How can you check whether the request is genuine?

Before sending the number:

Visit the organisation through its official website or app.
Check that the email address uses the expected domain.
Avoid telephone numbers supplied only in an unsolicited message.
Ask why the IMEI is required.
Confirm what other information the company genuinely needs.
Never provide a one-time password to “verify” the IMEI.

IMEI, EID, ICCID and serial number: what is the difference?

Modern phones can display several identifiers, so sharing the wrong one is easy.

IMEI

The IMEI identifies a cellular device or modem identity. Dual-SIM phones may have two IMEIs.

EID

The EID identifies the embedded eSIM hardware. A network may request it when activating or transferring an eSIM.

ICCID

The ICCID identifies a SIM or eSIM profile. Unlike the IMEI, it relates to the mobile subscription rather than the phone hardware.

Serial number

The manufacturer uses the serial number for product, warranty, support and repair records.

Do not publish all these identifiers together. Instead, provide only the number required for the specific task.

Is an IMEI number personal data?

An IMEI identifies a device rather than naming its owner directly.

However, the UK Information Commissioner’s Office explains that identification numbers and other identifiers may become personal data when they relate to an identified or identifiable person.

Therefore, an IMEI stored alongside a customer’s name, address, account, purchase or repair history may form part of that customer’s personal data.

What does this mean for phone shops?

Businesses should:

collect identifiers for a clear purpose;
avoid unnecessary public disclosure;
restrict staff access appropriately;
protect exported reports and spreadsheets;
set suitable retention periods;
keep device and customer records accurate;
explain relevant processing in privacy information.

Nevertheless, data-protection obligations depend on the context and wider information held. Businesses should obtain appropriate advice for their own processing activities.

Warning signs of an IMEI-related scam

The request deserves closer attention when someone:

refuses to explain why they need the number;
asks for an IMEI and one-time security code together;
claims they need your Apple or Google password;
sends a suspicious link for “IMEI verification”;
asks you to install remote-access software;
requests photographs of identity documents without justification;
pressures you to move outside the marketplace’s messaging system;
promises to change, clean or repair the IMEI;
offers to remove a blacklist through an unofficial payment.

In particular, avoid any service offering to alter the IMEI. Changing or interfering with a phone’s unique identifier is unlawful in the UK.

What should you do if you have already shared the IMEI?

Do not panic. Sharing the number does not give the recipient direct access to your phone or accounts.

Instead:

Keep a record of who received it and why.
Stop communicating if the person requests passwords or security codes.
Review the phone’s current IMEI status if you have a specific concern.
Watch for suspicious network, insurance or marketplace messages.
Contact your mobile provider through an official channel if a block appears.
Retain proof of purchase and ownership.
Report attempted fraud through the appropriate marketplace or official service.

Changing passwords is sensible when you disclosed account credentials, clicked a suspicious link or allowed remote access. By contrast, the IMEI alone does not require you to reset every account.

How phone shops should handle customer IMEIs

For a professional device business, the IMEI should form part of a controlled intake process.

Capture the number accurately

Whenever possible, take the identifier from the handset itself rather than relying entirely on:

a handwritten note;
a marketplace listing;
the original box;
a customer-provided screenshot;
the SIM tray alone.

Afterwards, compare all available identifiers and investigate any mismatch.

Connect the check to the transaction

Record:

the IMEI checked;
the date and result;
the supplier or customer;
the purchase or trade-in reference;
the operator completing the check;
the decision made afterwards.

This creates a clearer audit trail if the device status changes or a dispute arises later.

Use the right MobiCode workflow

MyMobiCheck supports single-device checks for private buyers and occasional sellers.
See: MyMobiCheck
MobiCHECK supports professional IMEI and device-status checks for phone businesses.
See: MobiCHECK
MobiCode CHECK supports wider used-device due diligence before purchase or resale.
See: MobiCode CHECK
MobiONE connects identifiers, checks, tests, erasure and device-routing records.
See: MobiONE

Seller checking whether it is safe to share an IMEI number with a used-phone buyer — A seller can share an IMEI privately so that a genuine buyer can complete a device-status check before payment.

Common mistakes when sharing or checking an IMEI

Publishing the full number in a public marketplace advert.
Assuming a buyer’s request is automatically fraudulent.
Sending passwords or one-time codes alongside the identifier.
Using an IMEI supplied in a screenshot without checking the phone.
Recording only one IMEI on a dual-SIM handset.
Confusing the IMEI with the EID, ICCID or serial number.
Believing a clean result proves legal ownership.
Checking only after money has changed hands.
Ignoring an IMEI mismatch between the phone and box.
Using an unknown website that requests unrelated personal details.
Assuming the phone’s status can never change later.
Paying someone to alter or “repair” the IMEI.

Commercial takeaway

So, is it safe to share an IMEI number? In a legitimate transaction, sharing it privately is usually reasonable and often necessary.

A careful used-phone buyer needs the IMEI to check the handset before paying. Likewise, a network, repair centre, insurer or trade-in business may need the number to identify the device accurately.

Nevertheless, avoid publishing it openly or combining it with passwords, security codes and unrelated identity documents. An IMEI identifies the handset, but it is not a password and does not give an ordinary person direct access to your files or live location.

For sellers, the safest approach is to share the number privately and keep a clear transaction record. For buyers, the correct approach is to match the number to the physical phone and run a trusted device-status check before payment.

That small step can reveal risks that are impossible to see from photographs alone.

A practical IMEI-sharing example

A seller lists a used iPhone on an online marketplace. A potential buyer asks for the IMEI so they can check whether the phone has been reported lost, stolen or blocked.

Rather than adding the number to the public listing, the seller checks the buyer’s profile and sends it through the platform’s private messaging system.

The buyer runs a single-device check and receives a clear result. However, they do not rely on that report alone.

At the meeting, the seller unlocks the iPhone and opens Settings. The buyer confirms that the IMEI shown by the phone matches the number checked earlier. They also test the cameras, battery, charging, speakers and mobile signal.

Next, the seller removes their Apple Account, turns off Find My and erases the handset correctly. Once the device reaches a clean setup screen without Activation Lock, the buyer completes the payment.

In this case, private IMEI sharing benefits both parties. The buyer receives enough information to complete due diligence, while the seller avoids exposing the device identifier publicly or sharing unnecessary account information.

Frequently asked questions

Is it safe to share an IMEI number with a buyer?

Yes, sharing it privately with a genuine buyer is generally reasonable because they may need it to check the phone before paying. However, avoid publishing the complete number openly or sharing account passwords and security codes with it.

Can someone hack my phone using the IMEI?

An IMEI alone does not provide direct access to your phone, photographs, messages, apps or passwords. Nevertheless, scammers may use device information as part of a wider social-engineering attempt, so never provide account credentials or one-time codes.

Can someone track my phone with the IMEI number?

An ordinary person cannot enter an IMEI into a public checker and view the phone’s live location. Mobile networks may use the identifier with network data, while Apple and Google location services require the relevant account and prior device setup.

Can someone blacklist my phone if they know the IMEI?

Mobile providers normally require customer, account or claim verification before blocking a phone. Knowing the IMEI alone should not be enough for an ordinary buyer to submit a valid block request, although sellers should retain proof of ownership and transaction records.

Should I put the IMEI in a Facebook Marketplace or eBay listing?

It is safer to say that the IMEI is available privately to serious buyers. Publishing the full number openly is usually unnecessary and allows anyone viewing the listing to copy it.

Can an IMEI number reveal personal data?

The number identifies the device and does not directly reveal photographs, messages or passwords. However, when an organisation links an IMEI to a named customer, transaction or account, it may form part of that person’s personal data.

Why does my phone have two IMEI numbers?

Many dual-SIM phones have IMEI 1 and IMEI 2 because they support two cellular identities, such as a physical SIM and an eSIM. Buyers and phone shops should record both where relevant.

Where can I check an IMEI before buying a phone?

Private buyers can use MyMobiCheck for a single-device check. Phone shops, recyclers and higher-volume traders can use MobiCHECK as part of a professional device due-diligence workflow.

Is It Safe to Share Your IMEI Number? What Buyers and Sellers Need to Know