Ivan Skivar <iskivar@msn.com> wrote:

>I am thinking of changing from Sprint to Verizon. I have a Treo 700p.
>Is it possible to use it with Verizon?

Call Verizon Wireless and ask them.

From
<http://support.vzw.com/faqs/Switch%20To%20Verizon%20Wireless/faq_local_number_portability.html#item5>

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Will I need a new phone?

In order to enjoy all of Verizon Wireless' services, you may need a
Verizon Wireless phone. In some cases, depending on your current
service provider's network and your type of phone, you may be able to
use your existing phone, but availability of services may vary.
=====

To put it another way, yes, it's possible, but VZW might not let you.