| Frequency | System | FleetID | User | City | State | Sys_Type | Notes | Additional Notes |
| 851.07500 | Primary | Hammond | IN | Motorola Type II Smartnet | ** | ** | ||
| 851.55000 | Primary | ****EAST CHICAGO POLICE TALKGR**** | Hammond | IN | Motorola Type II Smartnet | ** | ** | |
| 851.73750 | Primary | 1648 | ECPD-DISPTCH EAST CHICAGO POLICE DISPATCH LAW DISPATCH | Hammond | IN | Motorola Type II Smartnet | ** | ** |
| 851.80000 | Primary | 1680 | ECPD-OPS-2 EAST CHICAGO POLICE OPERATIONS 2 LAW TAC | Hammond | IN | Motorola Type II Smartnet | ** | ** |
| 852.12500 | Primary | 1712 | ECPD-OPS-3 EAST CHICAGO POLICE OPERATIONS 3 LAW TAC | Hammond | IN | Motorola Type II Smartnet | ** | ** |
| 852.32500 | Primary | 1744 | ECPD-OPS-4 EAST CHICAGO POLICE OPERATIONS 4 LAW TAC | Hammond | IN | Motorola Type II Smartnet | ** | ** |
| 852.58750 | Primary | 1776 | ECPD-OPS-5 EAST CHICAGO POLICE OPERATIONS 5 LAW TAC | Hammond | IN | Motorola Type II Smartnet | ** | ** |
| 852.83750 | Primary | 1808 | ECPD-DET-1 EAST CHICAGO POLICE DETECTIVES 1 LAW TAC | Hammond | IN | Motorola Type II Smartnet | ** | ** |
| 853.18750 | Primary | 1840 | ECPD-DET-2 EAST CHICAGO POLICE DETECTIVES 2 LAW TAC | Hammond | IN | Motorola Type II Smartnet | ** | ** |
| 853.21250 | Primary | 1872 | ECPD-EVENT-1 EAST CHICAGO POLICE EVENT 1 LAW TAC | Hammond | IN | Motorola Type II Smartnet | ** | ** |
| 853.32500 | Primary | Hammond | IN | Motorola Type II Smartnet | ** | ** | ||
| 1904 | ECPD-EVENT-2 EAST CHICAGO POLICE EVENT 2 LAW TAC | ** | ** | |||||
| 1936 | ECPD-OPS-6 EAST CHICAGO POLICE OPERATIONS 6 LAW TAC | ** | ** | |||||
| ** | ** | |||||||
| ****HAMMOND POLICE TALKGR**** | ** | ** | ||||||
| 48 | HPD-DISP HAMMOND POLICE DISPATCH LAW DISPATCH | ** | ** | |||||
| 80 | HPD-CAR-CAR HAMMOND POLICE CAR TO CAR LAW TAC | ** | ** | |||||
| 112 | HPD-RECORDS HAMMOND POLICE TACTICAL / RECORDS LAW TAC | ** | ** | |||||
| 144 | HPD-CITYWIDE HAMMOND POLICE CITY WIDE LAW TAC | ** | ** | |||||
| 240 | HDP-OPS-1 HAMMOND POLICE OPERATIONS 1 LAW TAC | ** | ** | |||||
| 528 | HPD-TAC-4 HAMMOND POLICE TACTICAL 4 LAW TAC | ** | ** | |||||
| ** | ** | |||||||
| ****EAST CHICAGO FIRE TALKGR**** | ** | ** | ||||||
| 2128 | ECFD-DISPTCH EAST CHICAGO FIRE/EMS DISPATCH MULTI-DISPATCH | ** | ** | |||||
| 2160 | ECFD-OPS-2 EAST CHICAGO FIRE SECONDARY FIRE-TAC | ** | ** | |||||
| 2192 | ECFD-FG-1 EAST CHICAGO FIRE FIREGROUND 1 FIRE-TAC | ** | ** | |||||
| 2224 | ECFD-FG-2 EAST CHICAGO FIRE FIREGROUND 2 FIRE-TAC | ** | ** | |||||
| ** | ** | |||||||
| ****HAMMOND FIRE TALKGR**** | ** | ** | ||||||
| 304 | HFD-DISPATCH HAMMOND FIRE/EMS DISPATCH MULTI-DISPATCH | ** | ** | |||||
| 336 | HFD-FG-1 HAMMOND FIRE FIREGROUND 1 FIRE-TAC | ** | ** | |||||
| 368 | HFD-FG-2 HAMMOND FIRE FIREGROUND 2 FIRE-TAC | ** | ** | |||||
| 560 | HFD-TRAINING HAMMOND FIRE TRAINING FIRE-TAC | ** | ** | |||||
| ** | ** | |||||||
| ****HAMMOND EMERGENCY MANAGEMENT TALKGR**** | ** | ** | ||||||
| 400 | EMA-OPS-1 HAMMOND EMA OPERATIONS EMERGENCY OPS | ** | ** | |||||
| ** | ** | |||||||
| ****HAMMOND GOVERNMENT SERVICES TALKGR**** | ** | ** | ||||||
| 432 | HPW-SEWER-1 HAMMOND SEWER/SANITATION DEPARTMENT PUBLIC WORKS | ** | ** | |||||
| 768 | HPW-REFUSE-1 HAMMOND REFUSE/SANITATION DEPARTMENT PUBLIC WORKS | ** | ** | |||||
| 784 | HPW-REFUSE-2 HAMMOND REFUSE/SANITATION DEPARTMENT PUBLIC WORKS | ** | ** | |||||
| 816 | HPW-WATER-2 HAMMOND WATER DEPARTMENT PUBLIC WORKS | ** | ** | |||||
| 848 | HPW-STREETS HAMMOND STREET DEPARTMENT PUBLIC WORKS | ** | ** | |||||
| 880 | HPW-PARKS HAMMOND PARK DISTRICT / SPECIAL EVENTS OTHER | ** | ** | |||||
| 912 | HPW-ANIMAL HAMMOND ANIMAL CONTROL OTHER | ** | ** | |||||
| 1136 | HTA-OPS-1 HAMMOND TRANSIT AUTHORITY OPERATIONS TRANSPORTATION | ** | ** |