Here are all the frequencies you;ll ever need for Logan Airport:
UNICOM: 122.95
ATIS: 135.0
BOSTON GROUND: 121.75 121.9
BOSTON TOWER: 124.725(HELICOPTERS) 128.8 128.8 257.8 132.225
BOSTON APPROACH: 118.25(NORTH) 120.6(SOUTH) 127.2(WEST)
BOSTON DEPARTURE: 133.0
CLEARANCE DELIVERY: 121.65 257.8
PRE-TAXI CLEARANCE: 121.65
(ARR/DEP RYS 04R/22L 09/27): 128.8
(ARR/DEP RYS 04R/22L, 09/27): 132.225
(ARR/DEP RYS 4L/22R 15R/33L 15L/33R): 128.8
CTL/S: 121.75
EMERG: 121.5 243.0
GATE CTL: 134.05
IC: 120.6(SOUTH)
WX ASOS at OWD (13 nm SW): PHONE 781-762-4314
WX ASOS at BVY (14 nm N): PHONE 978-921-5042
WX ASOS at BED (14 nm NW): PHONE 781-274-9733