SSID, VLAN, and Guest Networks: Are Multiple Wi-Fi Names Multiple Networks?
A router or AP system often exposes several Wi-Fi names: office, guest, IoT, kids. They all appear as SSID (Service Set Identifier) entries, but behind them they may be the same LAN or completely isolated networks.
Whether multiple Wi-Fi names are multiple networks cannot be decided from the names. The key is where each SSID is bridged, which VLAN (Virtual LAN) it maps to, who assigns addresses, and whether isolation policy blocks Layer-2 discovery or Layer-3 access.