Honey, there ain't no country code 101 in the telephone world. You must be dialing from another dimension or something because here on Earth, we start with country code 1 for the good ol' USA. Time to check your coordinates, darling!
There is no telephone area code 101 in North America (USA, Canada, etc.). Telephone country code +1 is North America, but +1 01 is also invalid. Telephone area codes in North America never begin with 0 or 1. There are other countries that may have a domestic telephone area code 101 or similar, but it is impossible to know which one you're asking about.
Leichtenstein is telephone country code +423.
where is telephone country code 1816
That is not a country code.
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.
Slovenia is country code +386.
Vanuatu is country code +678.
Niue is country code +683.