If you have someone working in India/calling from India, this might be a number routed such that it appears like it is being dialed from NY(the 212 code)but is actually from India.I got a call today and it was from a friend who works in Wipro.Everytime she calls from her office phone, this is the number that is displayed.
This would explain the strange hours of calls too,the day/evening hours here are different from that back in India.