User contributions
- 12:09, 28 May 2015 diff hist +23 m Calhoun County (MI) →EMS Agencies and Hospitals
- 19:51, 5 February 2015 diff hist +36 m Calhoun County (MI) →EMS Agencies and Hospitals
- 19:45, 5 February 2015 diff hist -40 m Calhoun County (MI) →EMS Agencies and Hospitals
- 19:36, 5 February 2015 diff hist +1,729 Calhoun County (MI) →Fire Departments/Numbering Plan
- 18:45, 5 February 2015 diff hist -5 m Calhoun County (MI) →Fire/EMS Pager Tones
- 18:44, 5 February 2015 diff hist -69 m Calhoun County (MI) →Signals and 10 Codes
- 18:43, 5 February 2015 diff hist +5 m Calhoun County (MI) →Police Numbering Plan
- 16:12, 26 April 2014 diff hist -9 m Calhoun County (MI) →Police Numbering Plan
- 15:03, 26 April 2014 diff hist +13 m Calhoun County (MI) →Police Numbering Plan
- 15:01, 26 April 2014 diff hist +6 m Calhoun County (MI) →Police Numbering Plan
- 14:59, 26 April 2014 diff hist +29 Calhoun County (MI) →Police Numbering Plan
- 14:58, 26 April 2014 diff hist +9 Calhoun County (MI) →Police Numbering Plan
- 14:57, 26 April 2014 diff hist -10 Calhoun County (MI) →Police Numbering Plan
- 14:54, 26 April 2014 diff hist -89 Calhoun County (MI) →Police Numbering Plan
- 14:21, 26 April 2014 diff hist +158 Calhoun County (MI) →Fire Departments/Numbering Plan
- 14:03, 26 April 2014 diff hist -137 m Calhoun County (MI) →Marshall (City)
- 03:39, 1 January 2013 diff hist +20 m Encrypted Agencies →Michigan
- 18:19, 25 June 2011 diff hist 0 m Calhoun County (MI) →Fire Departments/Numbering Plan
- 18:15, 25 June 2011 diff hist +279 Calhoun County (MI) →Fire Departments/Numbering Plan
- 15:27, 11 June 2011 diff hist -21 m Michigan MilAir Reference →Military Air Bases in Michigan