Originally Posted by hobbit555
232 is a land based MMSI number in the UK ie Ports and coastguard stations
235 is vessel registered in UK Other countries have their own numbers both shore based and vessel
it is like an area code for phones
I think you will find that 232 is in fact reserved for UK vessels, as is 233, 234, 235. Shore stations start 00 regradless of nationality and are then folliowed by the three digit country code.
If you have observed that all coded boats you are on are 235 then this is more than likley as they are all small craft.