A FIELD GUIDE TO CANADA’S WIRELESS NETWORKS
Canada.On yourwavelength.
Every site has a story. Discover the frequencies, antennas and connections behind Canada’s wireless networks.
- App Store · iPhone, iPhone Duo, iPad & Mac
- Free. Forever.
- No ads. No subscriptions.
For the casually curious. And the deeply curious.
01 / FROM THE MAP TO THE DETAILS
Find a place.
Follow your curiosity.
Move across the country, focus on one network, or inspect a single antenna. It’s all connected.
Explore cellular sites across Canada. Pin colours identify the operators; fans or arrows show antenna directions as you zoom in.
Explore this featureRead the radio layers at a site without losing their context: technology, frequencies, bandwidth and duplex.
Explore this featureA colour-coded diagram brings reported azimuths and beamwidths into view, band by band.
Explore this featureOn iPhone, run a shortcut to read serving-cell information from Field Test. North Towers looks for a matching site in the database. Available details depend on the reading; a unique site or sector cannot always be identified.
Explore this featureTrace point-to-point links between endpoints. A selected line displays its length and reported capacity.
Explore this featureChoose your SIM to see which Canadian networks it can use, in three priority tiers, with regional exceptions, usage limits and the networks it cannot use. The table is compiled manually and is for reference only.
Explore this featureSave sites with a custom name, notes and tags. Your collection remains available offline.
Explore this feature
Native screenshot · Switch the map style and appearance below
MADE FOR IPHONE DUO
Unfold it.
The map follows.
North Towers adapts to the outer display and to the inner display, open flat or folded into book and tabletop poses, in portrait and landscape. Folding, unfolding and rotating keep your map, the selected site, an open detail page and unfinished edits.
The map and a site, side by side.
- In landscape, site details open in a side workspace next to the map; Bands, Cells and detail pages use the panel’s full width.
- Search, filters, map layers and map controls fit the space that’s left, and band diagrams and map framing follow the usable map area.
- Content and controls stay clear of the camera area, the fold and the system sidebars.
Half open, like a book.
- The site panel stays on one side of the fold and the map on the other, in 2D or 3D.
- Re-centre sits with the map controls, and the selected band card and the Apple Maps legal link are centred between the panel and the map controls.
Map above. Details below.
- Stand it up: the map fills the upper half and the site panel stays below the fold.
- Open flat in portrait, sites and tools open in the standard resizable sheet.
Closed, it’s still your iPhone.
- The outer display stays in portrait with the familiar site sheet, and the band card matches the sheet’s width.
- Fold it with a site open and keep going: the sheet and its Bands list carry over to the outer display.
List and detail on the inner display
Favourites, Settings and Insights use list-and-detail layouts on the inner display and keep a single column on narrower screens. Roaming networks, Carrier features and other Insights pages follow the available width.
Explore Insights · Composition Insights · Roaming networks
Native screenshots from a development build in the iPhone Duo simulator, shown in Apple’s iPhone Duo product images. In Book and Tabletop, the screenshot is fitted to the folded screen.
MAP STYLES
Same street.
Four ways to see it.
Drag the divider to compare two real screenshots of the same view: the map, points of interest, satellite imagery or hybrid labels, in light or dark.
ONE APP. MORE ROOM TO EXPLORE.
In your hand.
At your desk.
From a quick look on iPhone or Android to a wider view on iPhone Duo, iPad, Mac and the web. Choose the screen that fits the way you explore.
iPad
Give your curiosity more space.
Spread out the map and explore site details in a spacious layout. Rotate to landscape to study antenna diagrams and connections with more context.
For iPad · Portrait & landscape03 / YOUR OWN POINT OF VIEW
Choose your North Towers.
Eight app icons, each with light and dark versions.
Choose your colours, tune your diagram, collect the sites that matter. Your notes and favourites can travel with you between Apple devices through optional private iCloud sync.
Explore this feature
Folded mapBUILT WITH CURIOSITY. SHAPED BY YOU.
Your feedback
shapes what’s next.
North Towers is an independent project. We listen, improve and keep fixing the details. Found a problem or have an idea? Tell us.
Every map, record and insight is yours to explore. Optional Supporter contributions help the project; they never unlock data or essential features.
Read our story →