Rural Urban Suburban are general designations given by the some government agencies (often used for determining grants and tax incentives). Not all agencies use the same break downs or terms (exa. some may use Metropolitan Areas). Furthermore, agencies who use Rural, Urban, and Suburban often define those differently than other agencies. You can learn a more here: http://greatdata.com/rural-urban-data  (don’t miss the detail tab at top too)

Western NC near Charlotte area...

Here is an NC area code map http://www.nanpa.com/area_code_maps/display.html?nc

Here is a free tool that maps any area code or zip code (plus the current time in case you're planning to call them off hours)

http://greatdata.com  see lower right - Free ZIP Code, Area Code, and Time Zone Lookup

Its in Indiana (Gary, Hammond, Merrillville, Portage, Michigan City, Valparaiso) area.

Here is a free tool that shows coverage area for any area code or zip code (plus the current time in case you're planning to call them off hours) http://greatdata.com see lower right - Free ZIP Code, Area Code, and Time Zone Lookup

The others are correct that it is the New York City area. Here is a free tool that shows coverage area for any area code or zip code (plus the current time in case you're planning to call them off hours)

http://greatdata.com/ see lower right -  Free ZIP Code, Area Code, and Time Zone Lookup

It is the (Zone Improvement Plan) ZIP code used by the United States Postal Service. The ZIP Code format is five numerical digits. The ZIP+4 code includes the ZIP Code plus four digits which reference an address.  

sources http://zipcodereview.com, http://greatdata.com