Just got a call from this number this evening. CID says it was "Chester Spri PA". If it is a scam selling extended auto warranties, well I haven't had a car for almost 7 months now. If I did have a car and wanted an extended warranty, I'd buy it from the dealer I purchased the vehicle from, NEVER from one of these robo-calling idiots whose warranties aren't worth the paper they're written on. It's a total rip-off scam by common thieves.
Also, like many of the posters above, I purchased a call blocker about a year ago and already have 428 numbers blocked so far. I purchased a Sentry which allows me to block 9,999 numbers so I don't have to worry about a new one for quite a while. The peace and quiet is well worth the $40 the unit cost, and blocks all callers that refuse to show a number CID, and can be set to block 100% of robocalls.