# How do I distinguish 2 fixes with the same name? [duplicate]

I see two fixes in the CIFP file that have the same name PERSN.

1. Given 2 fixes that have the same name but are located in different regions (defined by ICAO code) how does airplane/pilot distinguish between those 2 when respecting flight plan?

2. According to FAA Procedures for Handling Airspace Matters

e. AIM [Aeronautical Information Management] must not duplicate any radio fix, waypoint, marker beacons or compass locators names.

how come that those fixes have the same name?