If iPhone 5 on AT&T can work with tMobile, why not Verizon?

Discussion in 'iPhone' started by Myiphone7, Oct 25, 2012.

  1. Myiphone7 macrumors 6502a

    Nov 18, 2010
    If I put a verizon sim, would I not be able to make calls?

    My iPhone 5 is unlocked, so how do I know which carriers will work overseas?

    I bought an AT&T one
  2. BFizzzle macrumors 68020


    May 31, 2010
    Austin TX
    because a verizon sim is only for LTE service.. and the att phone doesnt use the same bands.

    for voice and 3g service it uses the esn..which would require that verizon has your esn in their system..which they dont.. as well as the cdma ipsw on it.
  3. 1080p macrumors 68030


    Mar 17, 2010
    Planet Earth
    Because the AT&T doesn't support the Verizon LTE frequencies and doesn't support CDMA at all. AT&T model will not support LTE in Europe either.... only HSPA+.

    AT&T model does support LTE in Canada, while the Verizon version does not.

    Hopefully someday, Qualcomm will dream up an LTE chip that supports all bands on the same phone.
  4. Myiphone7 thread starter macrumors 6502a

    Nov 18, 2010
    I see. Well as long as I'm ok overseas that's all that matters.

    I go out of the country every few years and I'm looking forward to taking the iPhone 5 this time around.

    I'll likely get a prepaid data/minutes plan. Hopefully a good 5GB or so and 60-90 min max.

    That's all I'll probably need.

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