01636 is the area code for the Newark area in the Nottinghamshire region. The 1636 region includes places like: Newark on Trent, Winthorpe, North Muskham and Farndon, among others.
The majority of numbers utilizing the 01636 area code are regular Newark landlines, however it should be noted that this might be misleading. Many businesses don’t provide a service that is connected or requires a physical address, but if they have a phone number, they have an area code.