| 17521 | 4471 | D | B2 All Disp | B2 - All Municipalities - Dispatch | Fire Dispatch |
| 17522 | 4472 | DE | B3 All InB/U | B3 - All Municipalities - Incidents Backup | Fire-Tac |
| 17523 | 4473 | DE | B4 CYFS | B4 - Central York - Aurora, Newmarket Tac 4 - Incidents | Fire-Tac |
| 17524 | 4474 | DE | B5 RHFD | B5 - Richmond Hill Tac 5 - Incidents | Fire-Tac |
| 17525 | 4475 | DE | B6 GFD | B6 - Georgina Tac 6 - Incidents | Fire-Tac |
| 17526 | 4476 | DE | B7 WSFES | B7 - Whitchurch Stouffville Tac 7 - Incidents | Fire-Tac |
| 17527 | 4477 | DE | B8 EGES | B8 - East Gwillimbury Tac 8 - Incidents | Fire-Tac |
| 17528 | 4478 | DE | B9 RHFD | B9 - Tac 9 | Fire-Tac |
| 17529 | 4479 | DE | B10 RHFD | B10 - Tac 10 | Fire-Tac |
| 17530 | 447a | DE | B11 RHFD | B11 - Tac 11 | Fire-Tac |
| 17531 | 447b | DE | B12 RHFD | B12 - Tac 12 | Fire-Tac |
| 17533 | 447d | DE | Bravo RHFD | Bravo - RHFD | Fire-Talk |
