The +691 country code is for the Federated States of Micronesia (FSM), a nation of four island states spread across the western Pacific Ocean. Those four states — Yap, Chuuk, Pohnpei, and Kosrae — each have their own phone prefixes, so the first three digits of any FSM number tell you which state you are calling.
Like the Marshall Islands and Palau, FSM is a Compact of Free Association (COFA) nation. Micronesian citizens can live and work in the US without a visa, and thousands have relocated to Hawaii, Guam, and the US mainland. Phone calls between the US and FSM are a regular part of family life for these communities.
This guide covers everything you need to call +691 correctly: number formats by state, time zone differences (FSM spans two zones), and the mistakes that catch first-time callers off guard.
Quick answer: The Micronesia country code is +691. Phone numbers are 7 digits. The first three digits identify the state: 320 = Pohnpei, 330 = Chuuk, 350 = Yap, 370 = Kosrae. There is no trunk prefix. Example: +691 320-1234.
How to call Micronesia: quick reference
FSM has no area codes in the traditional sense, but the first three digits of each number correspond to a specific state. The dialing format is the same for all four states — just use +691 plus the 7-digit number.
| Calling from | Dialing format |
|---|---|
| US/Canada mobile | +691 [local number] |
| US/Canada landline | 011-691-[local number] |
| Australia | 0011-691-[local number] |
| Japan | 010-691-[local number] |
| Guam | 011-691-[local number] |
| CallSky app | +691 [local number] |
Understanding Micronesia phone numbers
All FSM phone numbers are 7 digits long. There is no trunk prefix — you never add a leading 0. The first three digits function as a state identifier and line type indicator.
State prefixes
| Prefix | State | Type |
|---|---|---|
| 320 | Pohnpei | Landline |
| 330 | Chuuk | Landline |
| 350 | Yap | Landline |
| 370 | Kosrae | Landline |
| 920–929 | Pohnpei | Mobile |
| 930–939 | Chuuk | Mobile |
| 950–959 | Yap | Mobile |
| 970–979 | Kosrae | Mobile |
Number examples
| Type | Local format | International format |
|---|---|---|
| Pohnpei landline | 320-1234 | +691 320-1234 |
| Chuuk mobile | 930-5678 | +691 930-5678 |
| Yap landline | 350-2345 | +691 350-2345 |
| Kosrae mobile | 970-3456 | +691 970-3456 |
Mobile carriers in Micronesia
FSM has one main telecom provider covering all four states.
FSM Telecommunications Corporation (FSMTC)
FSMTC is the state-owned telecom and the only landline provider. It operates fixed-line service across all four states, though coverage on outer islands is limited. FSMTC also provides internet service through a mix of submarine cable and satellite links.
Mobile service
FSMTC operates mobile networks on each of the four main islands. Coverage is reasonable in the population centers (Kolonia/Palikir on Pohnpei, Weno on Chuuk, Colonia on Yap, Tofol on Kosrae) but drops off quickly outside these towns. Outer islands generally have no mobile coverage.
In 2023, a fiber optic submarine cable (HANTRU-1, shared with Palau and the Marshall Islands) improved internet connectivity to Pohnpei, though the other three states still rely more heavily on satellite links for bandwidth.
Don't confuse +691 with nearby codes
The +691 code sits in a cluster of Pacific island country codes that are easy to confuse.
| Code | Country | How to tell apart |
|---|---|---|
| +691 | Micronesia (FSM) | 7-digit numbers starting with 3xx or 9xx |
| +692 | Marshall Islands | One digit off, 7-digit numbers starting with 2xx/3xx/4xx |
| +680 | Palau | 7-digit numbers, third COFA nation |
| +686 | Kiribati | 8-digit numbers |
| +1671 | Guam | NANP format (area code 671) |
The +691 vs +692 confusion is the most common. Both are COFA nations in the same region of the Pacific, and their codes differ by one digit. If you are calling Chuuk and get someone in Majuro, you likely typed 692 instead of 691.
Time zone considerations
FSM spans two time zones, which is unusual for a country with a population under 110,000.
- Yap and Chuuk: UTC+10 (same as Guam and Papua New Guinea)
- Pohnpei and Kosrae: UTC+11 (one hour ahead of Yap/Chuuk)
There is no daylight saving time in either zone.
| Time in Pohnpei (UTC+11) | Chuuk/Yap (UTC+10) | US Eastern | US Pacific |
|---|---|---|---|
| 9:00 AM (Mon) | 8:00 AM (Mon) | 5:00 PM (Sun) | 2:00 PM (Sun) |
| 12:00 PM (Mon) | 11:00 AM (Mon) | 8:00 PM (Sun) | 5:00 PM (Sun) |
| 6:00 PM (Mon) | 5:00 PM (Mon) | 2:00 AM (Mon) | 11:00 PM (Sun) |
From the US mainland, calling on Sunday afternoon or evening catches Monday morning in FSM. If you are calling Chuuk, remember it is one hour behind Pohnpei — double-check which state your contact is in before calling.
Communication in Micronesia
Business hours
Government offices operate Monday through Friday, 8:00 AM to 5:00 PM local time. Each state keeps its own government schedule. The national capital is Palikir on Pohnpei, but much of the day-to-day governance happens at the state level.
Call quality
Call quality varies by state. Pohnpei has the best connectivity thanks to the submarine cable. Chuuk, the most populated state, can have inconsistent call quality, especially during peak hours. Yap and Kosrae are smaller and quieter, so calls tend to go through without congestion. Outer island calls are unreliable or impossible by cell — satellite phones are the fallback.
Messaging and internet
Internet in FSM is expensive and slow outside of Pohnpei. Facebook is widely used across all four states, and many Micronesians coordinate calls through Facebook Messenger before placing voice calls. WhatsApp is less common than in other Pacific nations.
The Micronesia diaspora
Where Micronesians live abroad
Under COFA, FSM citizens can move to the US freely. An estimated 50,000+ Micronesians now live outside FSM, with the largest communities in:
- Hawaii — especially Honolulu, the primary gateway for Micronesian migration
- Guam — geographically close, large Chuukese community
- Pacific Northwest — Portland, Salem, and Seattle have growing FSM populations
- Arkansas and Missouri — drawn by meatpacking and manufacturing jobs
Chuukese make up the largest share of FSM migrants, followed by Pohnpeians. Each community tends to maintain ties specifically with their home state rather than FSM as a whole.
Why they call home
Remittances from the US diaspora are a major source of income for FSM. Calls home often center on coordinating money transfers, family events (funerals are particularly important in Micronesian culture and require extensive family coordination), and checking on elders. Many families call at least weekly despite the time zone difficulty.
Dialing examples
Calling a Pohnpei landline from the US
Your contact's office number in Palikir is 320-2345. From a US mobile, dial +691 320-2345. From a US landline, dial 011-691-320-2345.
Calling a Chuuk mobile from Guam
You need to reach someone on Weno island in Chuuk. Their mobile is 930-6789. From Guam, dial 011-691-930-6789. From a Guam mobile, dial +691 930-6789.
Calling a Yap landline from Japan
A hotel in Colonia, Yap has the number 350-1234. From Japan, dial 010-691-350-1234. From a Japanese mobile, dial +691 350-1234.
Calling between FSM states
If you are on Pohnpei and calling someone on Kosrae, just dial the 7-digit number directly: 370-5678. Calls between states within FSM do not require the +691 country code.
Common mistakes to avoid
Dialing +692 instead of +691
This is the most common error. +691 is FSM, +692 is the Marshall Islands. They are separate countries. If you hear an unexpected greeting or the number does not connect, check you typed 691.
Calling the wrong time zone
FSM has two time zones. Pohnpei and Kosrae are UTC+11, while Chuuk and Yap are UTC+10 — one hour behind. If you calculated the time difference based on Pohnpei but are calling Chuuk, your call may arrive an hour earlier than intended.
Assuming mobile coverage exists
FSMTC's mobile network covers the main towns on each island but not much else. Chuuk state has over 40 inhabited islands, and most of them have no cell towers. If you cannot reach someone by phone, they may be on an outer island without service.
Adding a trunk prefix
FSM has no trunk prefix. Do not dial 0 before the number. The format is always +691 plus the 7-digit number, nothing in between.
Prefer calling over WiFi? See our guide to the best apps for WiFi calling.
Frequently asked questions (FAQ)
What country uses the +691 country code?
The +691 country code belongs to the Federated States of Micronesia (FSM), made up of four states: Yap, Chuuk, Pohnpei, and Kosrae. The capital is Palikir on Pohnpei.
How do I call Micronesia from the US?
From a US mobile, dial +691 followed by the 7-digit local number. From a US landline, dial 011-691 followed by the 7-digit number. The first three digits tell you the state: 320 (Pohnpei), 330 (Chuuk), 350 (Yap), 370 (Kosrae).
How many digits are in a Micronesia phone number?
FSM phone numbers are 7 digits long. The first three digits identify the state and line type (landline or mobile). The full international format is +691 plus 7 digits.
Does Micronesia have multiple time zones?
Yes. Yap and Chuuk are UTC+10, while Pohnpei and Kosrae are UTC+11. There is a one-hour difference between the western and eastern states. No daylight saving time is observed.
What is the difference between +691 and +692?
+691 is the Federated States of Micronesia (Yap, Chuuk, Pohnpei, Kosrae). +692 is the Republic of the Marshall Islands. They are separate countries with separate phone systems, though both have COFA agreements with the United States.
Need to call other Pacific islands? Check our guides for Marshall Islands (+692), Palau (+680), and Kiribati (+686).