How to dial
How to call Guam
To make an international call to Guam, you need to dial the country code +1 before the local phone number. Here's how to do it from different devices:
📱 From a mobile phone
Dial + 1 [local number]
The + sign is usually accessed by holding the 0 key
📞 From a US/Canada landline
Dial 011 1 [local number]
011 is the international access code from the US and Canada
🌐 With GlobalDial (easiest)
Dial +1 [local number] from your browser
No app needed — call directly from your web browser
Quick facts
Guam at a glance
| Country | 🇬🇺 Guam |
| Country Code | +1 |
| ISO Code | GU |
| Continent | Oceania |
| Calling Rate | From $0.16/min |
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Country codes in Oceania
Other country codes in Oceania
Find dialing codes for the other 17 countries in Oceania:
🇦🇸
American Samoa
+1
🇦🇺
Australia
+61
🇨🇰
Cook Islands
+682
🇫🇯
Fiji
+679
🇵🇫
French Polynesia
+689
🇰🇮
Kiribati
+686
🇲🇭
Marshall Islands
+692
🇫🇲
Micronesia
+691
🇳🇨
New Caledonia
+687
🇳🇿
New Zealand
+64
🇵🇼
Palau
+680
🇵🇬
Papua New Guinea
+675
🇼🇸
Samoa
+685
🇸🇧
Solomon Islands
+677
🇹🇴
Tonga
+676
🇻🇺
Vanuatu
+678
🇼🇫
Wallis and Futuna
+681
Common questions
FAQ
What is the country code for Guam?
The country code for Guam is +1. You need to dial this code before the local phone number when making an international call to Guam.
How do I dial Guam from the US?
To call Guam from the US, dial 011 + 1 + the local phone number. Or, use the international format: +1 followed by the local number. With GlobalDial, just enter the full number with the country code and we handle the rest.
How do I dial Guam from a mobile phone?
From a mobile phone, dial + (plus sign) followed by 1 and then the local number. The + replaces the international access code used by your country. With GlobalDial, you can call Guam directly from your browser — no phone app needed.
What is the difference between a country code and an area code?
A country code (like +1 for Guam) identifies the country you're calling. An area code identifies a specific region within that country. When making an international call, you dial the country code first, then the area code, then the local number.
Can I call Guam online without a phone?
Yes! GlobalDial lets you call Guam directly from your web browser. No app download or phone required. Just create an account, buy credits starting from $5, and start calling Guam at affordable rates.