I have some Palm Treo 650’s that were retired from service where i work.
First one is an unlocked one. Somewhat beat up, but seems to work fine. Includes synch cable, manual and software. No charger, but there are a ton on ebay for 5 bucks. Battery is fully charged right now, so you could slip your SIM card in and try it out before you buy.
$25
This one is also unlocked. Comes with synch cable, charger, software, manual, and box. In good overall condition.
$60
This one has not been unlocked, it’s an AT&T unit(as they all were). Comes with synch cable, manual and software. No AC charger, but will come with a car charger. Good overall condition. $40
All phones have been reset and should be good to go.
You don’t have to have the net. I put a T mobile to go prepaid plan sim card in one and it worked fine and i was able to make and receive calls with it.
No, Verizon is CDMA network and it doesnt use sim cards, ATT is completely different network. If it was a sprint or Cricket phone possibly it could be reflashed to work.