Do you mean Baltimore City? They had 154.415 for paging when it was required. BCFD is career-only with no volunteer stations and pretty well assured network connectivity, so there is no need for broadcast paging anymore. Stations are alerted via wireline interface. If there is/were to be ever an outage, the station would be ordered to maintain watch on A2 until network was restored.
Baltimore County is on 46.46 for volunteer paging.