I have a 450 anytime minutes through Verizon Wireless and have gone over?

Can I still call other Verizon wireless customers (in Calling) without being charged?

Here is a breakdown of my current Billing Cycle
Usage & Allowance

463 ANYTIME minutes
92 Nights & Weekends (Unlimited)
503 in Calling (unlimited)

Yes, Verizon to Verizon is free.

verizon to verizon is free it is normally 10-15 cents a minute for non verizon customers