Some frequencies are in use conventionally and others by other TRSs.

452.1 has LTR key-up (1/08)
--452.100 Communications Associates - UHF (St. Louis) Trunked System St. Louis MO
--452.100 St. Josephs Hospital / Richard Rankin - UHF (Kirkwood) Trunked System St. Louis
452.2 94.8 PL in use by Central IL Taxi (@ East St. Louis)
452.2 179.9 PL in Glen Carbon (Community Repeater)
451.45 seems to be a community repeater using DCS tones of 025,026,031,032,043,047,172,205,223,251,664. See Collinsville
452.45 is constant hard data (Very loud near Collinsville) (Possibly 225.7 PL)
452.275 1-04-140 "Rennessance 100" (11/25/07)
452.275 107.2 PL in use by Cab Company in St. Louis (also/formerly CSQ?)
452.275 1-12-236 voice, 0-18-038 voice
461.575 103.5 PL in use conventionally.
461.575 D047 in use conventionally by farmers in Alton/Venice area.
461.575 LTR Key up in Franklin County (RCC?) (6/07)
461.575 141.3 PL CW-ID in Franklin/St Louis County (6/07)
461.725 192.8 PL is used in Missouri,L Special School District of St. Louis County and CSQ? at St. Louis Mills (Hazelwood)
462.075 D251 in use around Alton (Datatronics)
462.075 107.2 PL in use by ARCH Helicopter (Litchfield/Shelby Co Base)
462.075 ???? licensed to Washington University (St. Louis) BM
464.075 D205, Repeater, HTH in Glen Carbon (6/08)
464.275 is also BJC St. Louis (009063 Security) (0-09-086 BJC)

Site 103
Also includes 2wt MO6 frequencies of 461.1125 462.8125 464.8125 466.1125 469.0125 469.8125

Also has Nationwide Frequencies  License