City of Tucson Communications dispatches for Tucson, Northwest, Golder Ranch, Picture Rocks, Avra Valley, South Tucson, Rincon Valley, Mount Lemmon and Three Points fire departments on the talkgroups shown below.

Tucson Fire talkgroups are always heard on Simulcast B; and on other sites as needed by system users.

A9, A12 and A15 are simplex frequencies that are rarely used (generally only where trunked system communications are unreliable) and are grouped with A7, A10, and A13, respectively. For a single major incident, A7 is primary, A8 is avaialble for a second alarm or other tactical use on the incident, and A9 is available as a simplex. For a second major incident at the same time, A10 is primary, A11 is available is available for a second alarm or other tactical use on the incident, and A12 is available as a simplex. For a third major incident at the same time, A13 is primary, A14 is available is available for a second alarm or other tactical use on the incident, and A15 is available as a simplex.

B3, B4, B5, and B6 are Tucson Police Team 1, 2, 3 and 4 Dispatch talkgroups, respectively.