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Area code 548 covers most of southwestern Ontario.
The 548 area code is part of an overlay system with area codes 519, 226 and 382 in southwestern Ontario. Area code 519 was the original, established in 1953. Area code 226 was added in 2006, 548 was added in 2015, and 382 in 2023. Ten-digit dialing is required in this region.
Area code 548 is a General Purpose Code which was placed in service on January 1, 1947.
Our reverse phone lookup will analyze the three-digit prefix of any 548 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Ontario geographic region, and local calling area associated with the phone number.
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| Rate Center | Number of Prefixes |
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