Area code 905 covers the suburban ring around Toronto, including cities such as Mississauga, Hamilton, Vaughan, and Brampton. Introduced in 1993 as a split from area code 416, it quickly became symbolic of suburban growth and development in the Greater Toronto Area. Overlays 289 and 365 were later added to accommodate demand, and ten-digit dialing is now standard. The 905 region is a hub for business, residential expansion, and commuter communities. It is often culturally referenced in Ontario as distinct from the city of Toronto itself.