00 isn't part of the country code, it is a commonly used international access prefix.
Assuming that 00 is your international access prefix, that leaves the question of where is telephone country code +1 80. Telephone country code +1 is North America, including the United States, Canada, and 18 islands in or near the Caribbean. +1 80 is an incomplete area code; you need one more digit to narrow down the location. For example, +1 802 is Vermont, +1 807 is northwestern Ontario, Canada, and +1 809 is the Dominican Republic in the Caribbean.
On the other hand, if your international access prefix is 001, then that leaves the question of where is telephone country code +80, which is an incomplete code. Telephone country code +800 is international freephone numbers, and country code +808 is for international shared-cost numbers.
To avoid the confusion created by the different access prefixes used in different parts of the world, it is best to quote an international telephone number beginning with only the plus symbol and the actual telephone country code, omitting any access prefix.
(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.
Gibraltar is country code +350.
Moldova is country code +373.
Slovenia is country code +386.
Togo is country code +228.
Liberia is country code +231.
Angola is country code +244.
Mozambique is country code +258.
Niue is country code +683.
Fiji has telephone country code +679.