# 911 is a location, not a prefix · Worked example

- Write the dialing rule, the partner, and the geography gap.
- No prefix
- RedSky
- Which document says Canada
- You did not merge the two maps.

## Sources and go deeper

- [E911 data sheet](https://www.five9.com/sites/default/files/2022-11/Data-sheet-Five9-emergency-services%20%28E911%29.PDF). vendor. last checked 2026-10.
- [End user license agreement](https://www.five9.com/legal/end-user-license-agreement). vendor. last checked 2026-10.
- [Enhanced 9-1-1](https://en.wikipedia.org/wiki/Enhanced_9-1-1). wikipedia. last checked 2026-10.
- confirm. The 2022 data sheet says US and territories. The EULA text this lab read also says US or Canada. Re-read both before you publish a coverage map. last checked 2026-10.