Current Boston Area locals

So, as far as I can tell from listening to Boston East, West and Terminal, there are 3 locals that run around in the area:

BO1 - Daytime M-F. Runs around Salem/Everett, and sometimes makes a move up to Lowell.
BO2 - Nighttime M-F. Collects cars and takes them up to Lowell - passing West Medford any time between 11 and 1am
LA2 - Nighttime - sometimes drops off at Tighe Winchester and usually heads into the city anytime from 10-12am. Usually returns via the Western route.

Does LA1 ever head into the city? Do LA3/4 still run? Any others? I guess LO-1 no longer exists and most of its duties are now NA-1 or BO-1/2?
There's also DOBO, but that seems to be exclusively Western Route since Jan.

BO-1 and BO-2 go to Lawrence fairly often, not just Lowell. LA-1 rarely goes to Boston, but it has happened if things are jammed up. LA-3 mostly does work at Shop (Iron Horse Park), and takes their cars to/from Lawrence or Lowell. LA-4 was abolished a while back when they first restored a Boston local. LO-1 was abolished even further back, when they were on a kick of consolidating everything to Lawrence.