Country code +1 is North America (USA, Canada, and 18 Caribbean-ish islands). You need the next three digits (i.e., 24X) to be more specific.
There are no countries with dialling code plus 124. Plus 1 would be the US, Canada and some Caribbean countries so you would have to supply at least one more digit to identify where it is
Country code +1 is North America (USA, Canada, etc.), but you need the next three digits (i.e., one more digit) to be specific.
+1 240 and +1 248 are in the USA, +1 249 is in Canada, +1 242 is the Bahamas, and +1 246 is Barbados. The remaining +1 24X are not yet assigned.
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
Fiji has telephone country code +679.
Country code +57 is Colombia.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.
Vanuatu is country code +678.
Niue is country code +683.
Togo is country code +228.
Liberia is country code +231.