To find out if your iPhone 5 supports AWS band (1700/2100), follow these steps:
- 
	
- Identify your iPhone model number. You need to have iPhone 5 model number A1428. 
	
- Tap Settings > General > About and check if your serial number ends with any of these four-digit combinations:
	
- 
		
- FH19 
		
- FH1C 
		
- FH1D 
		
- FH1F 
		
- FH1G 
		
- FH1H 
	




Note: You can also locate your iPhone 5 box and verify that the label includes "1700/2100" under the UMTS/HSPA+/DC-HSDPA bands.

If your iPhone meets both of the above criteria, then it supports AWS band (1700/2100). When using a T-Mobile SIM card, you will be able to access T-Mobile DC-HSDPA speeds up to 42 Mbps (depending on availability).
Any iPhone 5 model A1428 includes full support of T-Mobile's LTE bands at the same speeds if it is unlocked. iPhone 5 model A1429 does not support T-Mobile's LTE bands.
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Notes:
- 
	
- Starting with T-Mobile availability, you can purchase iPhone 5 models that support AWS band (1700/2100). 
	
- If you have one of the iPhone 5 models that supports AWS band (1700/2100) and are experiencing any cellular-connectivity issues, see this article.