416
Area code
ONTARIO
Canada geographic area code, in service since 1947-01-01. Part of the 416/437/647 overlay complex — ten-digit dialing required.
Created 905. Created 647. Created 437. Created 942. Overlaid with 437, 647 .
Statusin service
Introduced1947-01-01
JurisdictionONTARIO, CANADA
Local dialing10D
Time zoneEastern
Last verified2026-09-17
Area codes serve rate-center geographies, not municipal boundaries. “ONTARIO” identifies the jurisdiction, not an exact city footprint.
Change history
Recorded events for this NPA- 2023-05-11 NPA 942 to Overlay NPA 416/437/647 (Toronto, Ontario)
- 2013-01-24 NPA 437 to Overlay NPA 416/647 (Toronto, Canada)
- 2000-02-29 NPA 647 To Overlay NPA 416 (Southern Ontario)
- 1947-01-01Area code 416 entered service.
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2012-09-27 | PL-441 ↗ | NPA 437 to Overlay NPA 416/647 (Toronto, Canada) |
| 2011-09-26 | PL-426 ↗ | NPA 437 to Overlay NPA 416/647 (Toronto, Canada) |
| 2000-02-29 | PL-218 ↗ | NPA 647 To Overlay NPA 416 (Southern Ontario) |