Country code +238 (dialed as 00 238 from many places) is Cape Verde, an island nation off the coast of northwestern Africa.
Landline numbers begin with +238 2. Mobile numbers begin with +238 99.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
The country code and area code of Seia, Portugal is 351, 238.
The country code and area code of Umerkot, Pakistan is 92, (0)238.
The country code and area code of Buzau, Romania is 40, (0)238.
The country code and area code of Osli, Sudan is 249, (0)238.
Country code +57 is Colombia.
Country code 52 is Mexico.
Fiji has telephone country code +679.
Gibraltar is country code +350.
Moldova is country code +373.