I was at a USF&W WMA in eastern NC last year and seen the new Motorola P25 radios there, they are now full time P-25, and the radio display showed four repeater sites, Columbia, Manteo, Englehard and the last one I didnt understand but I swore it was Plymouth.
This year when vacationing there I also did not hear any traffic on 163.150 and figured they have changed frequencies. If you hear anyone calling unit "800" or "dispatch," thats them unless they changed unit numbers as well. The equipment I seen was VHF so its still 162-174 range.