Getting all the entities data from my neightbors on 433mhz to MQTT

I receive my Acurite weather data through the 433mhz to MQTT rtl433 and discovery add-on. With it i also unfortunately receive about 500 entities (security, oil tank levels and others) from my neighbors’ s devices (about 15 devices broadcast on the frequency). I would like to eliminate them forever, because they make it hard to see my own devices in my setup. I tried to delete them manually in MQTT but they keep appearing and nothing seems to delete them permanently, so that they don’t show up when i try to select an entity for a dashboard or other purposes. In other words, I just don’t want to see and devices/entities that are not in my house. Any suggestion on how to configure my HA to solve this problem? Thank you for any kind answer you may have.