Is the iPhone 5s unlocked if bought from Verizon?

I was told that any iPhone 5 phone bought from Verizon was unlocked? Is this true? Also, if it's true, does that include phones bought with a plan from Verizon? I'm looking to buy an iPhone 5s off of eBay to use with Straight Talk and I need to know any helpful info so I don't waste my money for a phone that won't work.

No and no. The only helpful advice that works is you'll have to buy a 5s from Straight Talk or an unlocked 5s from Applestore. Yeah, full price so figure $650. You buy a phone from a carrier, it's locked to them, and you will not get out of that store alive unless you ink a deal. Bottom line, anybody selling you a 5s that doesn't match those two qualifications (unlocked and expensive) is a liar, and is ripping you off in a scam. Try to find a better way. 5s prices will be coming down in next 60-90 days. Best luck.