Note: This is a listing of deprecated systems. These systems are either no longer in use or have been superceded by another system.
| System Name | Type | Flavor | City | County | Updated |
|---|---|---|---|---|---|
| Industrial Communications and Electronics (Belfast) | Motorola | Type II Smartnet | Belfast | Waldo | 2020-03-18 |
| Maine Radio (Falmouth 1) | LTR | Standard | Falmouth | Multi-County [2] | 2021-02-18 |
| Maine Radio (Falmouth 2) | LTR | Standard | Falmouth | Cumberland | 2021-02-18 |
| Maine Radio (Lyman) | LTR | Standard | Lyman | York | 2021-02-18 |
| Maine Radio (Saco) | LTR | Standard | Saco | Multi-County [2] | 2021-02-18 |
| MaineStream Solutions | NXDN | Icom IDAS Type D | Falmouth | Multi-County [9] | 2023-11-19 |
| Portland (Motorola) | Motorola | Type II Smartnet | Portland | Cumberland | 2019-01-15 |
| RCM Communications (Portland) | LTR | Standard | Portland | Cumberland | 2021-02-18 |
| RCM Communications (UHF) | LTR | Standard | Falmouth | Cumberland | 2021-02-18 |