Sounds like they're doing the same thing to everyone. I couldn't find any info except the Philidelphia portion, but they never speak wheny you answer and call repeatedly...and it seems like they know when people are sleeping.
They call and hang up about 5 seconds after i answer. When i call back it says its an invalid number. This number has called me five times today. Its really anoying.
I have received 6 calls from this number today, but I'm late on my car insurance payment and thought it was a call about that, so I haven't picked up...I only looked up the number on a whim to verify that it was Geico...Guess not though. Creepy!!