Area code 684: American Samoa
What is area code 684?
Area code 684 is a US territory area code for American Samoa, on American Samoa Standard Time. All 21 of its prefixes in service are in the Am Samoa rate center. NANPA lists no overlay code for it. Local calls there take 7 digits. The code never shows a line is in service.
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See the phone add-onArea code 684 facts
| Location | American Samoa, United States |
|---|---|
| Time zone | American Samoa Standard Time |
| Overlays | None |
| In service since | October 2, 2004 |
| Local calls | 7 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
In short: 684 is American Samoa (American Samoa Standard Time). Format checks here are free and run in your browser; the current carrier and line type need a live lookup. Bulk phone number validator · Pro + Phone plan
Local time in area code 684
Pacific/Pago_Pago
Prefixes in service
21 of 792 possible
1 rate center
Which cities and towns use area code 684?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 684 rate centers with the most prefixes in service.
| Rate center | Prefixes |
|---|---|
| Am Samoa | 21 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 684 number?
NANPA's dialling plan for 684: local calls inside the code take 7 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 684 | 555-0147 |
|---|---|
| From another US or Canadian area code | 1-684-555-0147 |
| From outside North America | +1 684 555 0147 |
| E.164, for CRMs and SMS tools | +16845550147 |
When did area code 684 start?
Area code 684 went into service on October 2, 2004. It has no overlay, so every number in its area still starts with it.
Tools for 684 numbers
- Bulk phone number validator
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- Area code time zone
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- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 684 number tells you where it was issued, not what it is now.
Mobiles, landlines and VoIP lines share area codes, and numbers move between carriers. A live line-type and carrier lookup on every number in your list says which is which, and that decides which calling and texting rules apply. It's in the phone add-on.
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Area code 684 questions
- What state or territory is area code 684?
- Area code 684 is in American Samoa, United States. Its largest rate centers by number of prefixes are Am Samoa.
- What time zone is area code 684 in?
- American Samoa Standard Time.
- Does area code 684 have an overlay?
- Not as of NANPA's file dated 10/16/2026. Every number in its area uses 684.
- When did area code 684 start?
- Area code 684 went into service on October 2, 2004.
- Is a 684 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 684 have?
- 21 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
- Does a valid format mean a 684 number is in service?
- No. A format check only says the digits fit the North American Numbering Plan and that 684 is an assigned code. It cannot tell whether the number is connected, who answers it or which carrier serves it today, because numbers are reassigned and ported. A live carrier lookup reports the current carrier and line type, but even that is not proof someone answers.
- Can I check a list of 684 numbers for free?
- Yes. Paste them in the list tab above or upload a CSV to the bulk phone number validator: format, E.164, country and the numbering-plan line type are free for every row, with no account. Live carrier and line-type lookups come with Pro + Phone at $49.99/mo (5,000 a month).
More area codes
684 is the only area code in American Samoa. Browse every area code by state and province on the area code index.
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.