Hamilton is in the 289, 365, 742 and 905 Southern Ontario overlay complex.
Use the complete subscriber number and confirm the destination before calling.
Dial the complete ten-digit Canadian number in the featured overlay regions. Use +1 once in international format; a domestic long-distance 1, where required, is an access prefix rather than an additional part of the number.
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Hamilton is in the 289, 365, 742 and 905 Southern Ontario overlay complex.
Area codes identify numbering-plan areas, not a phone’s exact or current location. Wireless service, VoIP and number portability can separate a number from the subscriber’s physical location. Most populated Canadian regions now have several overlay codes with identical coverage, so ten-digit local dialling is required.
Browse other featured cities and codes in the same administrative grouping.
Open Ontario guideHamilton is associated with 905 and 289 in the featured fixed-line directory.
Hamilton is in Canada, which uses country calling code +1.
No. Numbering association is not live geolocation, and portability, forwarding or internet telephony can change where a call is received.