How do I find my AT&T Micro Nano Sim card's IMEI number using the iccid number

PUK number can only be obtained from the service provider's SIM card.
Remove the SIM card from the phone.
Record the serial number (MSISDN / ICCID) available on your SIM card.
Contact your service provider SIM card (or via online).
Give information that you will be asked for the PUK number.
Customer Service from SIM card service provider will ask a serial number (MSISDN / ICCID) of your card (instead of your phone number), and will provide its PUK numbers.
Insert the SIM card, turn on the phone, and enter the PUK number.
Filling the PUK numbers should not be any more than 10x. Because if that happens, your SIM card can not be used at all.

package includes micro,nano,and regular cards, https://www.metropcs.com/phones/details/metropcs-sim-card/610214633514.html

micro, Dimensions 130.3 x 67 x 9 mm (5.13 x 2.64 x 0.35 in) Weight 130 g (4.59 oz) SIM Micro-SIM

Alcatel One Touch Fierce

If your mobile uses Nano sims then they are the only ones you can use but if it uses Micro and your new sim is a Nano the you can get adapter to make your Nano to Micro . Hope this helps .

The imei code is unique for each phone. There are 3 ways to find the imei code for your iphone:

1 - About screen - Tap Settings > General > About to view your serial number, IMEI/MEID, and ICCID.

2 - Remove the SIM tray, the serial number and IMEI will be printed on the SIM tray

3 - If you still have the device's original packaging, you can find your serial number and IMEI/MEID printed on the barcode label that's affixed to the packaging.

You need to call AIRCEL.
Only they can give you your PUK code.
You will need your IMEI number from your phone. It will be under the battery or if you can...Type. *#06# into the phone and this should tell you your IMEI number.

search on google for: blackra1n

download, run,
follow instructions...

it will unlock your phone, jailbreak it and you are set...
works like a charm with 3G and 3GS (up to 3.1.2, dont upgrade to 3.1.3)

the phone is good but phone application is not working so you have to go to service center to resolve

Check your ipphone by IMEI in www.imei.info my by it was blocked for some reason. Check sim without jailbreak. Try another sim, my be your sim is broken. BEST WAY TO GET TO KNOW YOUR PHONE BETTER