Durchgang gesperrt

It seems like all the building names like N220, N140, etc around here should be in the tag ref=* instead or in addition.
See:
ref=*
and
osm.wiki/Names#Name_is_the_name_only

Are these numbers like N200 etc also signed somewhere on or in the building or used as normal name for these buildings?
If yes and there is no other visible or more official name, they should also stay in the name=* tag.
If these things like N200 are not visible on the buildings or not used as names but only as reference numbers for the buildings, then the name=* tag should be removed and the info should be placed in the ref=* tag only.

Beschleunigerphysik

Vom 2. Januar bis 18. Februar voll gesperrt, ab 19.02.2024 viergleisig

https://www.fnp.de/frankfurt/fest-eigene-gleise-fuer-s6-in-frankfurt-termin-fuer-inbetriebnahme-steht-92648057.html

Ein First Reisebüro gibt es in der Frankfurter Straße 86. An dieser Stelle ist jetzt ein Immobilienmakler

15

Einbahnstraße dürfte für Radverkehr geöffnet sein. Bitte dann mit oneway:bicycle=no eintragen.

Einbahnstraße dürfte für Radverkehr geöffnet sein. Bitte dann mit oneway:bicycle=no eintragen.

"dauerhaft geschlossen "
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2023-09-20T00:34:57Z
POI name: Volksbank Stuttgart eG
POI types: amenity-atm amenity-bank wheelchair-yes
#organicmaps ios

"dauerhaft geschlossen "
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2023-09-20T00:34:57Z
POI name: Volksbank Stuttgart eG
POI types: amenity-atm amenity-bank wheelchair-yes
#organicmaps ios