Check any IMEI like a banknote.
Device model, Find My status and radio bands from the IMEI, plus Apple warranty by serial number. Free, no account. Then the assistant tells you what to check before you pay for a used phone.
.si = Super Intelligence100% free · no accountAbout 15 seconds
Device lookup works with Apple · Samsung · Google · Xiaomi · OnePlus · Motorola · Huawei · Sony · Honor · Oppo · Vivo · Realme · Nokia · Nothing · Asus · Lenovo · ZTE · Poco · Tecno · Infinix · LG · HTC · Fairphone · TCL · Alcatel · Meizu · Cat · Blackview · Ulefone · Doogee and every other brand.
One report. The checks that matter before you pay.
We query the GSMA device registry and the live Find My status, check Apple coverage by serial number, and lay it out in plain language.
Specimen, not a real check: 1 thing to sort out
Apple iPhone 17 Pro Max · A3525 · Smartphone
Tilt your phone: the seal changes ink.Move over the note: the seal changes ink.Press and hold to see it against the light.Hold the mouse button to see it against the light.
- Numbering the IMEI, check digit verified
- Watermark the model, against the light
- Thread Find My / Activation Lock
- Microprint every radio band in the registry
- Seal the verdict; it shifts ink as you tilt
- Ultraviolet ink blacklist and carrier lock: not printed yet
Sample report: iPhone 17 Pro Max, Find My on. A real report engraves its own rosette from its IMEI.
Exact model
Brand, model and device type decoded from the TAC, the first eight digits of the IMEI. Spot a listing that claims a different phone.
Find My / Activation Lock
Whether the iPhone is still tied to someone's Apple Account. If it is on, the phone is a paperweight without the previous owner.
Apple warranty by serial
Coverage end, AppleCare and estimated purchase date for iPhone, iPad, Mac and more. Check by serial number.
Variant and color
The serial check adds the Apple model identifier, color and replacement status. The assistant explains how to tell a US eSIM-only iPhone from an EU one.
Blacklist statusComing soon
Reported lost, stolen or unpaid anywhere in the GSMA network. Until it launches, the assistant tells you how to reduce the risk.
Carrier lockComing soon
Locked to a network or free to use any SIM. For now, test with your own SIM when you meet the seller.
Three steps. About 15 seconds.
Paste the IMEI
Type it, paste it, or dial *#06# on the phone. We validate the check digit before anything else.
We query the registries
We read the device registry and the live Find My status. For Apple devices, the report also links to a warranty check by serial number.
Ask the assistant
The report is the context. Ask what to check in person, how Find My gets removed, or what the price should reflect.
A report is data. The assistant turns it into a decision.
Every report comes with an assistant that has already read it: the device, its Find My status and what we could not check yet. It answers in plain English and tells you what to verify in person.
- Explains the report in plain words
- Knows regional variants and how Find My gets removed
- Builds a checklist for meeting the seller
YouSeller wants $950. Is that fair for this phone?
AssistantThe IMEI report does not contain prices, but it tells you what the price should reflect. Run the Apple warranty check with the serial number: active coverage supports a price near the top of the used range. Battery health is not in the report, so ask for a screenshot of Settings › Battery before agreeing on a number.
YouFind My is on. Deal breaker?
AssistantNot yet. It only means the seller has not signed out. Have them do it in front of you, then re-check here. If they refuse, walk away.
Four places to find an IMEI
- *#06#
- Dial on any phone. Works on iPhone and Android, even without a SIM card.
- Settings
- General › About. Or Settings › About phone on Android. Long-press to copy.
- SIM tray
- Engraved on the tray. Useful when the phone will not turn on. eSIM-only iPhones have no tray.
- The box
- Barcode label. Always compare the box IMEI with the one in Settings.
Know what you are buying
- Free iPhone IMEI checkEnter the 15-digit IMEI of any iPhone to confirm the model and see whether Find My is still on. Apple warranty is one click away, by serial number. No account, no fee.
- Find My iPhone & Activation Lock checkSee whether an iPhone is still locked to someone's Apple Account. The status is read live from the IMEI at the moment you check.
- Apple warranty check by serial numberEnter the 10- or 12-character serial number of any Apple device to see its coverage, AppleCare status, estimated purchase date and repair history. Free, no account.
- IMEI blacklist checkCarriers share the IMEIs of phones reported lost, stolen or unpaid. A blacklisted phone can stop working on mobile networks at any time.
- What is an IMEI number?IMEI stands for International Mobile Equipment Identity: a 15-digit number that identifies one physical phone on every mobile network in the world.
- How to find your IMEIThe fastest way works on every phone: dial *#06#. Here are all the other places to look, including when the phone will not turn on.
Questions people ask before they buy
Is it really free?
Yes. The full report and the assistant are free, with no account. Each visitor can check 10 different IMEIs a day, and re-checking one of them does not count.
Is it safe to share an IMEI with you?
An IMEI identifies the hardware, not you. We do not store it with any personal data and never sell check history.
What does ".si" stand for?
Super Intelligence. The report is only the start; the assistant is what helps you decide.
Why is Apple warranty checked by serial number?
Apple keys coverage records to the serial number, not the IMEI. The IMEI report shows the model and Find My status in about 15 seconds and, for Apple devices, links to the warranty check by serial, which reads Apple live in 15 to 40 seconds.
Do you check the blacklist and carrier lock?
Not yet. Both are on the roadmap. Until then, re-check right before paying, insist on a receipt with the IMEI and test the phone with your own SIM.
Buying a used phone this week?
Check before you meet the seller, and again right before you pay. Free, about 15 seconds.
Check an IMEI now