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History of Hamilton Area Code 365 in Canada
365 phone prefix was put in service on March 25, 2013, as an overlay for the existing 905 and 289 numbers. It covers western and central Ontario, including major cities like Hamilton, Mississauga, Oshawa, and other surrounding suburbs. Area code 365 was among the 8 area codes introduced in 2013 and the 12th number in Ontario, Canada. A 10-digit dialing format is required for the 365 regions. It currently uses 658 prefixes, assigned from 365-200-XXXX to 365-999-XXXX.
Before 1992, only a single area code was served for each geographical region. If a specific phone number for the area code were nearly exhausted, the region and phone prefix would be split. However, the North American Numbering Plan (NANP) started to create overlay numbers in 1992.
Find a Local Telephone Number With a Mississauga, Ontario, Area Code
Find a 365 number from Calilio to enhance a local presence in Mississauga, Ontario. Our scalable solution ensures reliable connectivity and business growth from startups to small businesses.
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Why Start a Business in the Hamilton Phone Code 365?
The 365 area code covers the Hamilton region, a major economic center in southern Ontario. The city has a diverse economy spans manufacturing, tourism, agriculture, and technology. Between 2015 and 2019, Hamilton added 3700 new jobs and ranked as the 9th best employment growth rate among the Canadian census metropolitan regions, reflecting a quickly expanding labor force.
The city has a large population base of around 795,000 and an unemployment rate of just 4.3%, the lowest among Canadian cities. It is located in the heart of Canada’s manufacturing corridor, with above-average employment concentrations in steel, rail equipment, and auto parts industries. Hamilton's local economy is expanding faster, with an expected GDP growth of 1.6% this year.

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Unified Callbox
Integrates various communication channels into one platform, simplifying management.
Number Sharing
Easily share numbers across teams or departments for accessible communication with customers.
Internal Message
Enables communication among members through a messaging system for real-time interactions.
Call Queue
Manage and prioritize incoming calls by placing them in a queue to optimize handling and response efficiency.
New Lead Alerts
Empowers proactive customer engagement with real-time notifications for new leads.
CRM Integrations
Optimize customer interactions and improve data management for efficient workflow.
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Frequently Asked Questions
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