I am calling ipinfodb via JS. Recently I have had around 5-6 responses (from around 600) that specify the countryCode as 'RD'.
'RD' isn't a ccTLD and I cannot find any reason for this to be returned. Has anybody had a similar issue and did you find a fix?
I am calling ipinfodb on the route
RD is returned as a pseudo-country code for reserved IP addresses.
This includes things like private addresses, class D and E networks (IPv4) and loopback.
For a complete list of addresses that will return this value, see here.
I can't actually find this behaviour documented anywhere, but experimentation easily demonstrates that this is the case, and moreover the
<CountryName> element is populated with the word "Reserved" in these cases.