According to nTelos spokesman Mike Minnis, the difference between the iPhone 5 that his company sells and the iPhone 5 that Sprint or Verizon sells is that the nTelos version is missing the LTE nano-SIM. [...] Minnis also said that the nTelos iPhones are fully capable of roaming internationally and are unlocked so that users can buy a nano-SIM card when they travel.
Could you be asking about carriers in the United States? The nTelos statement appears to refer to foreign carriers. It seems counterproductive to go through all that trouble just to get a nano-SIM card to get GSM/UMTS service in foreign countries. Other telephones which cost much less can do the same thing using mini SIM cards.
Unfortunatlly, I just bought a brand new sealed box Iphone 5 under NTELOS, When I currently traveling in HongKong, I can't use other carrier's Nano Sim card in here, the phone always shows searching, and dial function is unable. Is it cos I didn't activate it yet?? or??