This from Chris Ranck:

YORK CENTER has changed their unit numbers to 77 due to ducom renumbering , Lombard is supposed to switch their numbers 47,48,49 .

Pervious posts with DuComm renumbering:

• Warrenville
• Lisle Woodridge
• Oak Brook
• Glen Ellyn
• Wood Dale and Itasca
• Wheaton, Carol Stream, West Chicago, Winfield

Tags: Chris Ranck, DuCOMM renumbers Lombard FD, DuCOMM renumbers York Center FPD, Lombard Fire Department, York Center Fire Protection District