Area code 403 vs 568
403 and 568 are overlay codes: they cover the same ground in Alberta, and a number in one is a local call to the other. 403 has been in service since 1947; 568 is assigned but not yet live, due 2028-06-10. Today 403 has 781 of 800 blocks assigned (97.6%) and 568 has 0 of 786 (0.0%), so a new number in the area now almost always comes from 568. 403 appears in the complaint data with 359 complaints in the window; 568 does not appear at all, which is what you would expect of a code that is not yet in service. Neither code is better or safer than the other. They are the same geography, the same carriers and the same dialing rules; the difference is only how long each has existed and how full it is.
Side by side
| 403 | 568 | |
|---|---|---|
| In service since | 1947 | planned, 2028-06-10 |
| Region | Alberta | Alberta |
| Blocks assigned | 781 of 800 (97.6%) | 0 of 786 (0%) |
| Complaints, 28 Sep – 30 Oct 2026 | 359 (#273) | not in the data |
| Rate centers | 143 | – |
Block share is allocation by the numbering administrator, not subscribers. Complaint counts cover 28 Sep – 30 Oct 2026 and measure how often each code is spoofed on caller ID.
Frequently asked
What is the difference between area codes 403 and 568?
None geographically – they overlay the same area, so the difference is age and how many numbers are left.
Do I need to dial the area code between 403 and 568?
Yes. Overlay areas use ten-digit dialing for local calls, including between the two codes. Seven digits reaches a recording.
Will a new number be 403 or 568?
Whichever has blocks left – currently 568, at 0% allocated against 97.6% for the other. Carriers draw from the code with free blocks, which is why the newer code spreads over time.
Is 403 or 568 more likely to be a spam call?
The data does not support a comparison: only one of the two appears in the complaint window.
Sources
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- Canadian Numbering Administrator – CO Code Status, data date 2026-10-31, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
Each code on its own: 403 · 568. All codes in Alberta: Alberta area codes.