Area codes 416, 647, and 437 are telephone area codes serving the single rate centre of Toronto, Ontario, Canada. The incumbent local exchange carrier in the 416/647/437 territory is Bell Canada. Almost all Toronto Bell Canada landlines are in area code 416, with 647 numbers allocated disproportionately to a growing mobile telephone market and to competitive local exchange providers (such as cable and voice-over-IP gateways). Local numbers are portable, with few limited exceptions for specific services such as pocket pagers.