Area Code 613-203 located in OTTAWA, , ON, more detail is as below. Place NPA (Numbering Plan Area) : 613 NXX (Local Number Prefix) : 203 City : OTTAWA State : ON (Ontario) NXX Use Type : Wireless NXX Intro Version : 2005-10-13 LATA (Local Access Transport Area) : 851 ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. Other Information NPANXX : 613203 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Coverage Area Name : OTTAWA Latitude : 45.4208 Longitude : -75.6933 ‹ previous : 612-999 next › : 613-206 Telephone Number List 613-203-0000 ~ 613-203-9999