NPA-NXX - 519-603

This is the 519-603 subcode (NPA-NXX) prefix page. Follow a prefix to find the number you are looking for. We divide our pages up to make them more user friendly to navigate!

1. Area Codes
2. 519
3. 519-603

The 519-603 subcode mainly covers Kitchener-waterloo in Waterloo county. But other numbers maybe included as well.

We have a database of information derived from the public phone records of Ontario state. Many of the numbers in this subcode are Regular Landline registered to Execulink Telecom. We hear they employ a large number of people in the Ontario office.
Recently there have been an increase in reported calls, we've had over 507096 comments across our systems for the 519-603 subcode.