The "250" area-code covers all of British Columbia. So, "long-distance" charges might apply, e.g., Vancouver to Prince George. (If both parties are Shaw Phone subscribers, there are no long-distance charges, since the "traffic" is carried ONLY through Shaw's network.)
In Campbell River, all calls from Telus: 250-923-XXXX to Shaw: 250-914-YYYY are "local" calls, even though the "exchange" (the middle 3 numbers) are different. The various TSPs (Telephone Service Providers) update their database, to determine which exchange is "local" to another exchange; hopefully, they do this correctly!
When you signed-up with a wireless company, did you pick an "exchange" code that is "local" to your location? For example, my friend works in Vancouver, and chose a "local-to-Vancouver" number for her work, but often returns to Campbell River for the weekend. So, on the weekend, while her phone physically is in C.R., it's still a long-distance call from a land-line in C.R. to her number.
P.S. In Norway, all telephone calls within their country are "local" -- no long-distance charges. Simple!