Where is telephone number 002?

Answer 1

Telephone country codes never begin with zero, so there are two possible ways to parse your question:

1. Your international access prefix is 00, so you are asking about a country code beginning with +2. You need at least one, and in most cases two, more digit(s) to get the complete country code. Country codes beginning with +2 are mostly in or near Africa, but +297 is Aruba (Caribbean), +298 is the Faroe Islands (north of Scotland), and +299 is Greenland.
2. Your international access prefix is 002, so the next digits are the country code.

(The plus signmeans "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.)