Phone area codes for Cambridge, ON
1 active area code · Eastern Time (EST/EDT, UTC-5/-4) · population 138,479.
Cambridge sits at the confluence of the Grand and Speed rivers and is the third city of Waterloo Region.
Area codes serving Cambridge
Dialling from and to Cambridge
Because Cambridge sits inside a single-NPA region, callers may still be able to use 7-digit local dialling, though 10-digit dialling is universally accepted. From outside Canada and the United States, dial your international access prefix, then +1, then the 10-digit number.
Mobile carriers in Cambridge typically issue numbers from whichever overlay code is currently being released by the NANP relief plan. As a result, two members of the same household frequently carry numbers from two different area codes — for example a long-time resident with an original-assignment number and a newer subscriber with an overlay number.
Major carriers serving Cambridge
About Cambridge, Ontario
Cambridge is located in Ontario, Canada. Cambridge sits at the confluence of the Grand and Speed rivers and is the third city of Waterloo Region. The city falls within the Eastern Time (EST/EDT, UTC-5/-4) time zone.
Numbers issued to subscribers in Cambridge can come from any of the area codes assigned to the surrounding numbering plan area: 519. With number portability now standard across all Canadian carriers, the area code attached to a Cambridge number tells you only where that number was first issued — not who currently carries it or where the device is physically located.
If you are trying to identify a recent call from 519, the caller is most likely either based in Cambridge or another community within the same NPA, has previously held a number issued in this area, or — in the case of telemarketing and scam calls — is spoofing a local prefix to increase the chance you pick up.