Where is area code 00184?

Best guess, you're asking about +1 800, which is a toll-free code in North America. Calls from North America may complete, with the caller paying ordinary international toll rates, or they may fail.

(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.)