How do I call Guam from abroad?

To call Guam, dial your country's exit code, followed by the country code +1-671, and then the local phone number.

What is the country calling code for Guam?

The country calling code for Guam is +1-671. To call Guam from abroad, dial +1-671 followed by the local phone number.

What timezone is Guam in?

Guam is in the UTC+10:00 timezone.

What currency is used in Guam?

The official currency of Guam is the United States dollar ($). This is the primary currency used for all transactions in the country.

What is the capital city of Guam?

The capital city of Guam is Hagåtña. It serves as the political and administrative center of the country.

How do I make cheap calls to Guam?

To make affordable calls to Guam from abroad, use CallTuv's browser-based calling service. Simply dial +1-671 followed by the local number. No app download required, and our rates are significantly cheaper than traditional phone carriers.

How much does it cost to call Guam?

CallTuv offers competitive rates for calls to Guam from abroad. Rates vary depending on whether you're calling a mobile or landline number. Check our rates page for the most up-to-date pricing.

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How to Call Guam

Calling Guam: [exit code] 1-671 [local number].

Guam Country Code: +1-671

ISO: GU

GUM

Quick answer

To call Guam, dial your international exit code, then 1-671, then the local number without leading zeros. Example: 00 1-671 +1 671 300 1234.

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Plan before you dial with the international call cost calculator and the best time to call planner. Looking for a calling card alternative instead of the dialing instructions? Compare calling cards to Guam.

Dialing format

00 1-671 +1 671 300 1234

Exit code • Country code • Local number

Whether you’re calling family, friends, or business contacts, knowing how to call Guam correctly helps your conversation start smoothly. This guide covers the essential dialing steps, including country and area codes that are easy to miss. By the end, you’ll be ready to connect confidently with anyone in Guam - whether you’re calling Hagåtña or anywhere else.

Step-by-Step Dialing Guide

Follow these simple steps to make a call to Guam from anywhere in the world

International Guide

Dial your country's exit code

Start with your country's international dialing prefix (often 00 or 011, or use + on mobile).

Add Guam's country code

Dial the country code +1-671 for Guam.

Enter the local phone number

Dial the local phone number in Guam (typically 8-10 digits, without any leading zeros).

Complete dialing format

Full format: [exit code] 1-671 [local number] - For example: 00 1-671 612 345 678

HOW TO CALL

International Dialing Format

001-671+1 671 300 1234

Exit Code•Country Code•Phone Number

CallTuv Format

+1-671+1 671 300 1234

Use this format to call directly from your browser

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Calling Guam: Calling Code, Local Time & More

Calling Code

+1-671

Capital of Guam

Hagåtña

Region

Oceania (Micronesia)

Currency of Guam

United States dollar ($)

Guam Time Zones

UTC+10:00

Current time

Your time

--:--

Guam

--:--

Guam is --

Guam at a Glance

Guam, located in Micronesia, is a nation with a rich identity. Its capital city, Hagåtña, serves as the administrative center for a population of approximately 154K.

The official currency is the United States dollar ($). When calling Guam, the country code is +1-671. The country observes the UTC+10:00 time zone(s), and the primary language(s) spoken include Chamorro, English, Spanish.

Destination Calling Profile: Guam

Population

154K

Population Rank

#185 of 230

Language Footprint

Chamorro, English, Spanish

Time Zone Footprint

UTC+10:00

City/Area Code Coverage

No city-level entries yet

Dial Code Status

Exclusive code in dataset

Guam currently has a 10-digit local number pattern in this guide, with country code +1-671.

Detailed route planning

Route planning details: Guam

Use this route profile to plan a real international call to Guam, including dialing format, timing, and destination context.

From

Your location

Guam

Common exit code: 00 or +Guam calling code: +1-671Time difference: N/A

For most international calls, start with your exit code or the plus sign, then dial +1-671 before the local Guam number.

Use Guam local business hours as the safest reference point before placing the call.

Guam dialing details

Guam is represented here by GU/GUM, Hagåtña, Micronesia, about 154K people, United States dollar ($), and primary language context of Chamorro, English, Spanish.

Destination calling code: +1-671. Destination time zones: UTC+10:00. Rate check: check live price before dialing.

Guam call planning

This destination-first route depends on the caller's local exit code plus +1-671. For business calls, use Guam's local workday as the default timing reference.

Dialing sequence: exit code +1-671 local number. Business-hour window: Use destination business hours. Time relationship: N/A.

Destination market: Guam is in Micronesia, with Hagåtña as a main administrative center. Calls may reach family, companies, banks, hotels, clinics, or public offices across a market of about 154K. Primary language context: Chamorro, English, Spanish. Local billing and everyday prices use United States dollar ($).

Route context: This page is destination-first, so the most important planning variables are Guam's country code, local timezone, destination language context, and whether the number is mobile or landline.

Use your local international prefix or +, then +1-671, then the Guam local number.Guam business-hour planning depends on the local destination timezone; the primary reference point here is Hagåtña.Guam language context: Chamorro, English, Spanish. Keep this in mind when calling businesses, hotels, banks, or local services.For Guam, check whether you are calling a landline or mobile number because those prices can differ; current context: check live price before dialing.

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