help! my city name tool's location accuracy is off

hey everyone, so we have this little web tool, "What is my City Name," and lately, its location accuracy has been giving us a headache.

the main issue is users reporting wildly incorrect city names. its not just a block off, sometimes it's like a whole different state or a city 100 miles away. this happens inconsistently, more often on mobile connections, and seems to vary by ISP.

we're currently using a popular free IP geolocation API, caching results for a bit to save on lookups. we've tried cross-referencing with another free service, but the discrepancies persist. it feels like we're just moving the problem around.

like, someone in Miami might see "Orlando" or even "Atlanta." its kinda embarrassing for a tool named "What is my City Name" to be so bad at it! we want to improve the overall location accuracy significantly.

any thoughts on better IP geolocation providers? or perhaps common mistakes people make that mess up location accuracy? we're open to paid solutions if they're reliable. thanks in advance!