About the data
cellmap shows licensed transmitter sites from Innovation, Science and Economic Development Canada's Terrestrial Spectrum Licence Site Data Extract.
What a pin means
- A carrier holds a spectrum licence and has registered a transmitter at that location. It says where equipment is licensed to transmit, not where your phone will have service.
- Bell and Telus operate a shared network. A site licensed to one commonly serves customers of both. Freedom Mobile is owned by Videotron, so its sites appear under Videotron. Other sharing and roaming arrangements exist — the brand on a pin is the licensee, not necessarily the only network using the structure.
- Coordinates are licensee-submitted and occasionally wrong.
- The sector wedges and compass diagrams are schematics of antenna orientation, not signal predictions.
Freshness
The data refreshes monthly from ISED's published extract. New sites appear with a lag; recently decommissioned ones linger.
Disclaimer
By using this site you understand that it is an independent hobby project with no affiliation with any carrier or with ISED, and that we are not responsible for cellular service, frequencies, site data accuracy, or anything you do with this information. We cannot help with reception problems, plan questions, or data corrections — please do not contact us. If your reception is bad, your carrier is the only party who can help.
Attribution
Tower data: Innovation, Science and Economic Development Canada, Terrestrial Spectrum Licence Site Data Extract. Contains information licensed under the Open Government Licence – Canada. Basemap © OpenStreetMap contributors, served by OpenFreeMap. Rendering by MapLibre GL JS. Place search by Nominatim.