carrier_info_wp
Carrier Info WP
Carrier Info WP gets carrierName and isoCountryCode without any permission. On pub dev a lots of packages doing same features and more. For this one, no need permissions.
Example:
final _carrierInfoWp = CarrierInfoWp();
final info = await _carrierInfoWp.getInfo();
print(info.carrierName);
print(info.isoCountryCode);