| 2633 | a49 | T | DU InterOp 1 | InterOp 1 (DU-COMM) | Interop |
| 2634 | a4a | TE | DU InterOp 2 | InterOp 2 (DU-COMM) | Interop |
| 2635 | a4b | T | DU InterOp 3 | InterOp 3 (DU-COMM) | Interop |
| 2636 | a4c | TE | DU InterOp 4 | InterOp 4 (DU-COMM) | Interop |
| 2637 | a4d | T | DU Forest PD 2 | Forest Preserve District Police: Secondary ("2") * | Law Talk |
| 2638 | a4e | TE | DU InterOp 6 | InterOp 6 (ACDC) | Interop |
| 2639 | a4f | T | DU InterOp 7 | InterOp 7 (ACDC) | Interop |
| 2652 | a5c | TE | DU InterOp 8 | InterOp 8 (ACDC) | Interop |
| 2653 | a5d | T | DU Unified 3 | Unified Command 3 | Interop |
| 2654 | a5e | T | DU SAO CID | State's Attorney Criminal Investigation Division | Law Tac |
| 2656 | a60 | D | DU PSAP-to-PSAP | PSAP-to-PSAP (Point-to-Point) | Multi-Dispatch |
| 2657 | a61 | T | DU DIRS | DuPage Interoperable Radio System (DIRS) | Interop |
| 2658 | a62 | T | DU Unified 1 | Unified Command 1 | Interop |
| 2659 | a63 | T | DU Unified 2 | Unified Command 2 | Interop |
| 2660 | a64 | Te | DU CART | Accident Reconstruction Task Force - DuCART | Law Talk |
| 2661 | a65 | T | DU Joint TF | Joint Task Force (Police and Fire) | Multi-Tac |
| 2668 | a6c | T | DU InterOp 5 | InterOp 5 (ACDC) | Interop |
| 2670 | a6e | D | DU Interop 2670 | Interoperability use? (former Itasca All Talk Group) | Interop |
| 2735 | aaf | T | DU HmlndSec1 | Office of Homeland Security and Emergency Management 1 | Emergency Ops |
| 2736 | ab0 | Te | DU HmlndSec2 | Office of Homeland Security and Emergency Management 2 | Emergency Ops |
| 2737 | ab1 | DE | DuPage ETSB | Emergency Telephone System Board (ETSB) | Emergency Ops |
| 2741 | ab5 | T | DU Interop 2741 | Interoperability use? (former SWCD Net 9 Tac) | Interop |
| 2742 | ab6 | TE | DU S/W Tac-1 | Statewide Tac-1 [DU STWD TAC1] | Law Tac |
| 2743 | ab7 | TE | DU S/W Tac-2 | Statewide Tac-2 [DU STWD TAC2] | Law Tac |
