| Frequencies Updated (6) | Starcom21 | 2023-11-20 15:35:47 |
| Updated Agency Location Details | Starcom21 | 2023-11-20 15:35:22 |
| Changed Subcategory Details For: Potomac Electric Power Company (PEPCO) | ericcarlson | 2021-07-11 00:36:38 |
| Subcategory (Northeast Electric Company) deleted | dtscho | 2018-10-01 23:28:03 |
| Added Frequency 461.125 (Northeast Electric Company) | dtscho | 2018-09-29 17:14:35 |
| Added Subcategory: Northeast Electric Company | dtscho | 2018-09-29 17:12:37 |
| Added Frequency 453.125 (Operations) | dtscho | 2018-01-31 18:43:12 |
| Added Frequency 454.525 (Operations) | dtscho | 2017-02-19 14:10:37 |
| Added Frequency 454.275 (Security) | dtscho | 2017-02-05 16:13:35 |
| Frequencies Updated (Updated: 3, Deleted 0) for Utilities | dtscho | 2017-02-05 16:11:36 |
| Changed Subcategory Details For: Potomac Electric Power Company (PEPCO) | dtscho | 2012-12-21 22:00:56 |
| Changed Subcategory Details For: Potomac Electric Power Company (PEPCO) | dtscho | 2012-12-21 22:00:30 |
| Frequencies Updated (Updated: 6, Deleted 0) for Potomac Electric Power Company (PEPCO) | dtscho | 2008-08-31 19:56:04 |
| Tagged 6 Frequencies with (Utilities) | kf4lhp | 2008-06-22 15:56:36 |
| TRS Link to 2538 Added | ericcarlson | 2005-01-29 14:33:20 |
| Frequencies updated | ericcarlson | 2005-01-29 14:32:21 |
| Frequencies updated | ericcarlson | 2005-01-29 14:23:07 |
| Sub-category Potomac Electric Power Company (PEPCO) changed | ericcarlson | 2005-01-29 14:22:36 |
| Sub-category Potomac Electric Power Company (PEPCO) changed | ericcarlson | 2005-01-29 14:22:21 |
| Frequencies updated | ericcarlson | 2005-01-29 14:21:46 |
| Frequencies imported | ericcarlson | 2005-01-29 14:21:37 |
| Sub-category
Potomac Electric Power Company (PEPCO) changed | ericcarlson | 2005-01-29 14:20:35 |
| Category Utilities added | ericcarlson | 2005-01-29 14:20:21 |
