Liste de la région
- 49534 - Grand Rapids, Kent, Michigan
- 49544 - Grand Rapids, Kent, Michigan
- 49546 - Grand Rapids, Kent, Michigan
- 49548 - Grand Rapids, Kent, Michigan
- 49588 - Grand Rapids, Kent, Michigan
- 49599 - Grand Rapids, Kent, Michigan
- 49550 - Michigan Bulb Co, Grand Rapids, Kent, Michigan
- 49555 - Radio Bible Class, Grand Rapids, Kent, Michigan
- 49530 - Zondervan Corp, Grand Rapids, Kent, Michigan