[plusCubed]

Google and Apple both have WiFi geolocation databases. As far as I can tell there's no way for an AP to opt-out of Apple's database.

Interesting tidbit from [1]: "In older versions of Apple's mobile OS (1.1.3 to 3.1), Apple relied on Google and Skyhook Wireless to provide location-based services -- so Apple left data collection to them. But ever since April 2010, starting with iPhone OS 3.2 and continuing into the current iOS 4 software, Apple has started using its own databases to provide location-based services to iOS devices."

[1] https://www.wired.com/2011/04/apple-iphone-tracking/