I don't have any of those. Also, 52512 doesn't appear to be a good TG ID for the Birmingham System. It should be 52496 or 52528. Are you sure you have your system programmed right?
I do have system programed right, but I do get some weird TGID's from time to time. This may just be the radio mis-reading a TGID or possibly a TGID from another system (Talladega/Calhoun County?). 14064 might be a TGID for JeffCo Fleet Management or JeffCo Roads Maintenance - those are the two closest agency's to that TGID in the list I have compiled. 30928 and 30960 could be JeffCo Sheriff TGID's as I have 30928 as Sheriff - Forestdale Back-up TGID. 14576 might either be for JeffCo Sewers or JeffCo Material Management. My list has them as the closest to that TGID. Have no idea on 60288. I have gotten several TGID's above 53000. I have Vestavia Hills in the 57000 range. I have on several occasions been able to make an educated guess about a TGID based on the TGID's before or after the one in question.