Cobb County DTRS Unknown TG's

[b7spectra]

While running Pro96Com all day, I got hits on the following TG's:

30221 (In range of Cobb Fire)
30302 (In range of Metro EMS)
30803 (In range of Acworth or Austell)
30880 (In range of Smyrna Police)
31429 (In range of UASI TG’s)
31629 (Unknown Range)

Any Ideas?