iPhone XS Max IMEI Check: A1921, Right-Side Tray, Lock
The XS Max is an older, bigger iPhone that still trades. Confirm yours and see what 52 lookups showed.
Check this iPhone XS Max IMEI free
See device, blacklist and lock status in seconds — no signup. Dial *#06# on the phone to display its IMEI — or scan a photo or screenshot of that screen, or of the barcode on the phone's box or SIM tray.
Check many IMEIs at once — paste, photo or Excel (up to 100) →100% free · no signup · no card needed
Big, steel and a little old
Apple introduced the iPhone XS Max in 2018. Apple's "Identify your iPhone model" page (read 10 November 2026) lists a 6.5-inch Super Retina display, a glass back with a stainless steel band, two 12 MP cameras (wide-angle and telephoto), and a nano-SIM tray on the right side where the IMEI is etched. Capacities were 64, 256 and 512 GB in silver, space gray and gold.
The smaller sibling is the 5.8-inch iPhone XS, listed as A1920. The XS Max is A1921 in the build we see most. Apple's list has five numbers in all, and only two of them carry a region: A2102 for Japan and A2104 for mainland China. We do not guess the others.
| A-number | Market | Checked on FullIMEI (90 days) |
|---|---|---|
| A1921 | Labelled US build by our lookup | 52 devices |
| A2101 | Not mapped by Apple | under 10 |
| A2102 | Japan | under 10 |
| A2103 | Not mapped by Apple | under 10 |
| A2104 | Mainland China (dual nano-SIM tray) | under 10 |
Nobody reads as locked or unlocked
Counts are distinct handsets seen between 12 August and 10 November 2026.
| A1921 result | Devices | Share of 52 |
|---|---|---|
| Locked to a carrier we read | under 10 | under 19 % |
| Unlocked | under 10 | under 19 % |
| Unknown (lock not readable for free) | 42 | 81 % |
No single country reached ten lookups on this model, so there is no country table. Checks are spread thin across many places. For a phone this age the usual risks are not carrier locks. They are a replaced screen, a tired battery and a blacklist entry from a previous owner, so the blacklist check matters more than the lock line.
An XS Max in the hand
- Measure by eye: the Max is the larger screen. Anything 5.8 inches is the XS.
- Check the tray is on the right edge. A left-side tray means a later model.
- Look at Settings, General, About: capacity should be 64, 256 or 512 GB. Match the Model Number with a number in the table above.
- Read Battery Health. In a phone this old, under 80 % means a replacement soon.
- Compare the tray IMEI with *#06# and run the lookup.
Apple supplies the physical description; counts are ours and only cover phones checked here. A newer cheap option to compare: the iPhone XR.
Questions people ask
What are the model numbers for the iPhone XS Max?
Apple lists A1921, A2101, A2102 for Japan, A2103 and A2104 for mainland China. Apple does not map the first, second and fourth numbers to regions.
Where is the IMEI on an iPhone XS Max?
Apple says it is etched on the SIM tray, which sits on the right side of the frame. Settings, General, About lists the same number. In mainland China, Hong Kong and Macao the tray holds two nano-SIM cards.
Did the iPhone XS Max come in 128 GB?
No. Apple lists 64, 256 and 512 GB. A "128 GB XS Max" does not match that list, so check the capacity line in Settings.
How can I tell an XS Max from a plain XS?
Size. Apple lists a 6.5-inch display on the Max and 5.8 inches on the XS; the cameras and steel band are the same. Model numbers differ too: A1921 against A1920.
Can the free lookup say if an XS Max is locked?
Seldom. Of 52 units we checked, 42 returned unknown, and no lock or unlock group reached ten. It is a 2018 phone and the free lookup reads only two carriers.