Which is a better area code for a Manhattan cellphone, 646 or 917?

Question

I'll be living in Manhattan and have a choice between two cell numbers (646 or 917). Apparently there's a difference? Can anyone living in NYC tell me 1-which is better and 2-what's the difference? Many thanks!

Answer 1

i'd go with 646.

i don't like odd numbers.

Answer 2

get the 917. 917 is only used for cell phones, 646 has been used for both landlines and cells