I have just started using OpenStreetMap/Nominatim and I am struggling to understand what the current status of postcodes is, how they are used to find results, best practices and so on... For example, querying the following Northern Irish address returns a single accurate result: "220 Ravenhill Avenue, Belfast". However, if I append the correct postcode to the query (either the full postcode or the first segment), no results are returned: "220 Ravenhill Avenue, Belfast, BT6 8LL" or "220 Ravenhill Avenue, Belfast, BT6" I have encountered similar behaviour for a number of NI addresses but have noted that this isn't always the case when searching, for example, addresses in London. - Is this the intended behaviour? - Can I assume from this that Postcode information for NI is simply incomplete? - If **If so, is there somewhere I can go to see how complete postcode information for a particular area is? is?** - How are other people handling situations where they may have a list of addresses that require geocoding, all of which contain postcodes? Thanks

I have just started using OpenStreetMap/Nominatim and I am struggling to understand what the current status of postcodes is, how they are used to find results, best practices and so on... For example, querying the following Northern Irish address returns a single accurate result: "220 Ravenhill Avenue, Belfast". However, if I append the correct postcode to the query (either the full postcode or the first segment), no results are returned: "220 Ravenhill Avenue, Belfast, BT6 8LL" or "220 Ravenhill Avenue, Belfast, BT6" I have encountered similar behaviour for a number of NI addresses but have noted that this isn't always the case when searching, for example, addresses in London. - Is this the intended behaviour? - Can I assume from this that Postcode information for NI is simply incomplete? - If so, is there somewhere I can go to see how complete postcode information for a particular area is? - How are other people handling situations where they may have a list of addresses that require geocoding, all of which contain postcodes? Thanks