Who called from 7183131000

i live in new york, new york. recieve phone call many times in one day. when call back the number is not in service. there is a woman on the other line but i never spoke to communicate with her.

PHONE CALLS FROM THIS NUMBER ARE LEFT W/ NO MESAGE. CANNOT RETURN TELEPHONE AS LINE IS NOT WORKING.

It's the College of Staten Island I believe. When someone calls you from there, it shows up as 718-313-1000, but you can't call them back at that #. You have to know their direct line.

It is CSI. Just got a call from there, couldn't call it back. Didn't know who it was until my friend called back.