When it concerns your troop dispatches and units the RID's are as follows
1101XXX -Mobile units
1102XXX -Portable Units
1103XXX -Base Units (such as the radio inside each troop barracks)
1104XXX -Dispatch Consoles
What those other codes are (100103, 2600761) that you have there are anyones guess. I run Unitrunker at times and have collected quite a list although much of it has changed because I havent run it and monitored in awhile. When each officer gets hired, changes rank, or changes department, they get a new radio, new to them. So if say 418 was a patrolman and ends up moving to CID, he/she will exchange their radio. So that 1101XXX (their mobile) and 1102XXX (their portable) will change. I used to save all that info and found that it changes so often (sometimes every 6 months all the way up to every couple years) that I gave up. Somewhere either here on radio reference or possible another scanner site, there is a list that shows all the RID info and what it goes to.