Hi. I don't see why you could not. Here is something from the company faq on the matter:
I’m planning to move across the country. What happens to the phone number assigned to my Ooma system?
"You can take the Ooma system and your Ooma phone number anywhere you move in the U.S. And if you have Ooma Premier, you can keep your existing Ooma number AND choose a new phone number in your new calling area at no extra charge. Just be sure to login to My Ooma and update your E911 service address after you move.
Note: If you wish to change your existing Ooma phone number, you can contact Ooma Support to select a new number in your desired calling area for a one-time charge of $19.99.