Find any 240- phone number in Maryland
The 240 area code is located in the heart of Maryland and services the highest population in the state. Created in 1997, it was implemented as one of three area codes (the others being 301 and 410) that served the entire state at the time. It covers most of southern and western Maryland and is part of North American Numbering Plan (NANP) which is a system used to assign telephone numbers in a specific geographic area.
The North American Numbering Plan uses three-digit area codes to divide a specific region into smaller divisions. The area code is then followed by seven-digit combinations that are unique to every customer. This way, the NANP organizes mobile, landline, and internet connections across the country, allowing for people to keep a single number and choose a service provider that works out best for them. In Maryland, the 240 area code serves most of the southern and western part of the state, providing the necessary connectivity and structure.