Stations
- Black Sheep Radio – WOOL
- Black Soul Marques
- Black Soul Rhythms
- Black Sparrow Radio
- Black Squirrel Radio
- Black Star Network
- Black Talk Radio Network
- Black With No Chaser Radio
- black-tapes-on-air
- blackblack
- Blackbox FM
- BlackLight Radio
- blackmagicdwarf
- Blackpool Radio
- blackspot
- BlackwoodFM
- Bladerunner and the Outlaw Show
- Blades Radio
- Blair County, PA, EMS, Fire, Police
- Blair Radio – KYTF-LP
- BlaqRoylty Radio
- Blast Radio
- Blast Radio
- BLAST! Digital FM
- Blax Radio
- Blaze It Up Radio
- Blazer 91.1 – WVUB
- Blazer Radio
- BlazeRadio
- Blazin 100
- Blazin’ 98.5 – KCBR
- Blazin’ Country 1050 – KLOH
- Blazing Star Radio
- Blazinhotradio Randumkuts
- bleakradio
- Blend Kingz Radio
- Bless FM Radio
- Bless Radio
- Blessed Morning Radio
- Blessed Radio UK
- Blessing Radio
- Blessings
- Bleu FM – CFMV-FM
- Bleudream 80
- Blind Techno Radio
- Blink Radio – WSQF-LP
- Bliss Bubble Radio
- Blithe Fm
- BLITZ FM
- Blitz Radio 2000
- Blockchain Radio
- Blog DFM Radio
- Blondy Radio
- Blood Line Radio
- Bloodlit Radio
- Bloody Orgasm Online Radio
- Bloomberg 106.1 – WNBP
- Bloomberg Radio – WBBR
- Bloomberg Radio – WDCH-FM
- Bloomberg Radio – WJZ-HD2
- Bloomington Community Radio – WFHB
- Blow Up Radio
- BLOWRADIO.COM
- Blu FM – XHOI
- Blu Lounge Radio
- BLU Radio
- Blu Radio Caribe
- Blue 100.7
- Blue Anime Ivana
- Blue Broadcast Network (BBN)
- Blue Dot Radio
- Blue Earth, Faribault, and Nicollet Counties Sheriff, Police and EMS
- Blue Heron Radio
- Blue Lagune Radio
- Blue Lake Public Radio – WBLU-FM
- Blue Lake Public Radio – WBLV
- Blue Marlin Ibiza
- Blue Marlin Ibiza Radio
- Blue Melody School Radio
- Blue Mountain Radio – KQBM
- Blue Panda Radio
- Blue Planet Prank Radio
- Blue Radio Colombia
- Blue Ridge Gospel Radio
- Blue Skies Radio
- Blue Space FM
- Blue Steel Radio
- Blue Web Radio
- Blue-in-Green:RADIO
- blue-knight
- Bluebox Radio Active
- BlueCat Radio
- Bluegrass Country – W288BS
- Bluegrass Country – WAMU-HD2
- Bluegrass Planet Radio
- Bluejay 96.3FM – W242CZ
- Bluejay 96.3FM – WJMT
- bluenite
- BlueRootsRadio
- Blues 1380 – WLRM
