American Samoa +1
Official telecommunications routing registry for American Samoa. International dialing prefix is +1. Browse all regional numbering plan area codes below.
⭐ Major Area Codes in American Samoa
🗄️ All Numbering Plan Area Codes (NPA)
Select an area code to view local exchange registries, carrier mappings, and geographic zones
American Samoa, a U.S. territory located in the South Pacific Ocean, is integrated into the North American Numbering Plan (NANP). Its international dialing prefix is +1, the same as the United States and Canada. However, unlike mainland U.S. states, calls to American Samoa require a distinct three-digit area code, 684. This unique combination means that while the territory shares a country code with the U.S., it maintains its own numbering identity within the NANP. For businesses, travelers, and international callers, understanding this structure is essential to avoid misdialing and to ensure cost-effective communication.
Dialing Instructions
To place an international call to American Samoa from any country outside the NANP, you must follow a specific sequence. The standard format is: International Exit Code + 1 + 684 + Local Number. For example, if you are calling from the United Kingdom, you would dial 00 1 684 123 4567 (replace with the actual 7-digit local number). From the United States or Canada, you do not need an international exit code; simply dial 1 684 followed by the local number. For calls from mobile phones, the '+' sign can be used in place of the exit code, so +1 684 followed by the number works universally.
Area Code 684 Context
The area code 684 is exclusively assigned to American Samoa. It was created in 2004, replacing the previous code 670 that was shared with the Northern Mariana Islands. This change was implemented to accommodate the growth of telecommunications in the territory and to reduce confusion. Today, all local numbers within American Samoa are seven digits long, and the area code is mandatory for all calls, even within the territory. This means that local calls made within American Samoa must include the area code, followed by the seven-digit subscriber number, resulting in a 10-digit dialing format. This is consistent with many NANP regions that have moved to 10-digit dialing for all local calls.
Special Rules and Considerations
One critical aspect to remember is that American Samoa does not participate in the standard U.S. toll-free number system. Toll-free numbers starting with 800, 888, 877, 866, etc., are generally not accessible from American Samoa unless the service provider has explicitly enabled international access. Additionally, calls from American Samoa to other NANP countries (like the United States) are treated as domestic calls, but calls to non-NANP countries are international. There are no special emergency numbers unique to American Samoa; the universal emergency number is 911, which works for police, fire, and medical services. However, due to the territory's remote location, response times may vary, and it is advisable to have local contacts for emergencies.
Traveler and Business Tips
For travelers visiting American Samoa, it is important to check with your mobile carrier about international roaming rates, as the territory is considered international for many carriers even though it uses +1. Alternatively, purchasing a local SIM card from the primary provider, ASTCA (American Samoa Telecommunications Authority), or Bluesky (a subsidiary of AmSam) can be more economical. For businesses, establishing a local presence is crucial, as the territory has its own regulations and a unique market. When sending faxes or using data services, ensure that your equipment is compatible with the local infrastructure. Also, be mindful of time zone differences: American Samoa operates on Samoa Standard Time (UTC-11), which is one hour behind Hawaii and a full day behind parts of Asia due to the International Date Line. Always confirm business hours in local time to avoid missed communications.