No Mobile Network Detected

I have a Verizon Blackberry Curve and have had the same refurbished phone (I think from Asurion?) for about 6 months. Tonight it stopped detecting any mobile network. I reset the phone and took out the battery multiple times but it is still not detecting any mobile network. My friend tried calling the phone and it rings and then goes to voicemail.
I ran a Diagnostics Test and got this:
Radio Data Activation: No
Signal Level: unknown
Radio Access: Unknown
Network: Unknown
IP Address: Unknown
ICMP Ping Echo: No
Blackberry Registration: No
COnnected to Blackberry: No
Blackberry PIN-PIN: No

Any help is greatly appreciated!!

Call your carrier. I imagine if you have a proper data plan they will be able to sort
this much out faster.