NPA-NXX - 519-204

This is the 519-204 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. 519-204

The 519-204 subcode mainly covers London in Middlesex 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 2034156 Ontario. 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 439151 comments across our systems for the 519-204 subcode.