Unexpected null or N/A geolocation data from IP API for my IP Lookup Tool

Hey everyone, hoping you can lend an ear here. I run a web tool called 'IP Lookup Tool - Geo-locate Any IP Address & Get Details', which, as the name suggests, helps users quickly geo-locate IP addresses and fetch detailed information about them. Lately, I've been hitting a frustrating wall. The tool is frequently returning null or N/A values for crucial IP geolocation data fields like country, city, and ISP when querying our chosen third-party IP API. This is happening for a significant number of requests, making the tool less reliable and useful than it should be.

I've already gone through the usual suspects: double-checked our API keys, confirmed we're well within our rate limits, and tested with a variety of IP addresses – both well-known public IPs and some internal test ones. The issue seems intermittent but persistent, affecting different IPs at different times, which makes it even harder to pinpoint. Here's a snippet of what I'm often seeing in the API response:

{  "ip": "192.0.2.1",  "country": null,  "city": "N/A",  "region": null,  "isp": "Unknown Provider",  "latitude": null,  "longitude": null,  "error": "Geolocation data incomplete or unavailable"}

I'm really scratching my head here. Has anyone else encountered such inconsistent IP geolocation data responses from their APIs? Any insights into common reasons for this (beyond the obvious API key/rate limit checks)? Are there specific debugging strategies I should employ, or perhaps more reliable IP API providers you could recommend for robust IP geolocation data? Help a brother out please...