This is NOT unlock - It provide details of carrier:

IMEI: 3550250616302xx
Serial Number: RF8FA2A99xx
Model: SM-N910C
Product Code: SM-N910Cxxxxxx
Division: Mobile Phone (HHP)
Manufacturer: Samsung Electronics Vietnam
Sold To: Spain
Production Date: October 22, 2014
Ship Date: October 26, 2014
Phone Age: 0 Year(s), 3 Month(s), 03 Day(s)
Factory Warranty Coverage: January 24, 2016