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.)
00184 is not an area code, it is an international dialing code, including the location-dependent international access prefix. Different places use different prefixes, so it is confusing to include the prefix in international telephone numbers.
If your international access prefix is 00 (the most commonly used prefix), then you're asking about telephone country code +1, which is North America, including the USA, Canada, and 18 assorted Caribbean and nearby islands. The '84' is the first two digits of a three-digit area code. You need the following digit to narrow down the location.
On the other hand, if your international access prefix is 001, then you're asking about telephone country code +84, which is Vietnam.
(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.)
The address of the Colosseum is: Piazza del Colosseo, 1, 00184 Roma Italy.
The area code "258" is currently an unassigned area code. The closest area code to area code "258", is area code "260", which is assigned to the state of Indiana.
The area code (832) is for the state of Texas. Within that area code there are 44 cities. You cannot determine a zip code by area code.
Area code 914.
Newark, NJ, is in area code 973, with overlay code 862.
The country code and area code of ChillÌÁn, Chile is 56, 42.
There are at least 10 towns named Leesburg in the US.Leesburg, VA, is in area codes 703 and 571 (overlay)Leesburg, FL, is in area code 352Leesburg, IN, is in area code 574Leesburg, GA, is in area code 229Leesburg, AL, is in area code 256Leesburg, NJ, is in area code 856Leesburg, TX, is in area codes 903 and 430 (overlay)Leesburg, OH, is in area code 937Leesburg, ID, is in area code 208Leesburg, KY, is in area code 859
The country code and area code of Changhua, Taiwan is 886, 47.
Bartow, Florida, is in area code 863. Bartow, Georgia, is in area code 478.Barstow, California, is in area code 760 and overlay code 442.
The country code and area code of Asturias, Spain is 34, 884.
The area code for Batesville, MS is 662.662 is the area code for batesville
There is no area code 678 in Mexico.