Haver you tried Apple's Core Telephony Framework.
CTCarrier Class Reference might be helpful.
Question
I'm trying to get cell tower data with my iPhone 5. I've been testing with VAFieldTest (https://github.com/valexa/VAFieldTest). In the file VAFieldTestViewController.m (https://github.com/valexa/VAFieldTest/blob/master/Classes/VAFieldTestViewController.m) on Line 61, it always return 0 for iPhone 4S and 5.
After investigation, someone said Apple changed the modem (for iPhone 4S) Infineon Gold to Qualcomm mdm6610, and the iPhone 5 is using MDM9615M, thereby rendering the method call useless.
So, are there other methods to obtain the cell tower data for iPhone 5?
NOTE: this questions is specific for iPhone 5. It is not a duplicate of the other questions, because they work only up to iPhone 4.
Solution
Haver you tried Apple's Core Telephony Framework.
CTCarrier Class Reference might be helpful.