carrier-explode iOS carrier and country bundles GitHub
Canada

From iOS 27.0.1 image · build 72.0, the copy every phone in the country gets.

Alerts (1)
SwitchUser can turn offOn by default
EMERGENCY ALERT / ALERTE D’URGENCEno off switchyes
Message IDs (2)
RangeAlert type3GPP TS 23.041
4370-4379PresidentialPresidential-level alert (CMAS class 1)
4381-4399PresidentialCMAS exercise
Other alert settings
Duplicate suppression30 min window, inter-SIM yes, intra-SIM yes
Emergency numbers911
Alert sound / vibrationcbs_alert_ca.caf / cbs_vibe_ca.plist
ISO codesca