One of the few advantages of living in Jordan is that no carriers brand and lock cell phones to their network. A law passed by the Library of Congress 3 months ago deemed it illegal to unlock a cellphone branded to a carrier in the US (think Lumia 920/900 on At&t).
However it is still perfectly legal to have your carrier officially unbrand the cellphone, provided they agree of course. This does make it more difficult for people on other networks to get devices such as the 920, especially with the exclusivity deals Nokia has been striking.
Thankfully there seems to be a variant of the Lumia 920 heading to Verizon soon, still it must suck to have even more to worry about next time you buy a phone.