Last night around 2200 UTC I heard several QSOs in the 6200-6525 marine band (and the higher frequencies up to 7000 kHz, of course). 6200 USB was very active in Spanish language as were several others including the 6MHz SSB marine calling/distress channel of 6215 kHz. The other night I logged similar traffic on 6215.5 kHz USB but last night it was on 6215.0 kHz USB...too weak to really make out exactly what was being said but this didn't sound like emergency traffic.
Since they're technically using the 6 MHz marine frequencies I know it should be considered "Utility" but these are more likely fishing fleets using the emergency frequency for regular HF-SSB marine comms.
Lots and lots of other 6 MHz marine traffic last night, of course the other users were not using the calling frequency and could therefore be considered regular utility users.