IP lookup API optimization

Question

I'm trying to limit my number of requests to an IP geolocation API, I want to know if this will accurately determine user country;
My IP table
Id |-----ip-----| Country|
1 | 1.194.121.200 | USA
If I have the above in my Database, can I use same country for an IP (1.194.208.105) having same integers in their first two octets, to avoid another API request?

Answer 1

I just checked and the answer is no!
5.149.63.0/24 belongs to Localnet AG, Switzerland, but 5.149.64.0/24 belongs to AVAX.net, Bosnia and Herzigowina.