How to Call Guam from Luxembourg
Calling Guam from Luxembourg: 00 1-671 [local number].
Guam Country Code: +1-671
Quick answer
To call Guam from Luxembourg, dial 00, then 1-671, then the local number without leading zeros. Example: 00 1-671 +1 671 300 1234. Calls cost from ~$0.12 per minute with CallTuv.
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 card alternatives.
Dialing format
00 1-671 +1 671 300 1234
Exit code • Country code • Local number
Exit code
00
Luxembourg's international dialing prefix
Country code
+1-671
Guam's international calling code
Local number
+1 671 300 1234
Enter the local number without the country code
Browser format
+1-671 +1 671 300 1234
Use this format inside CallTuv
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 Luxembourg
Dial the exit code for Luxembourg
Start by dialing 00 (or use + on mobile). This is the international dialing prefix for Luxembourg.
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: 00 1-671 [local number] - For example: 00 1-671 612 345 678
HOW TO CALL
International Dialing Format
CallTuv Format
No apps needed • Works in browser
See rates for Guam →Calling Guam from Luxembourg: Calling Code, Local Time & More
Calling Code
+1-671
Cost to Call Guam
~$0.12/min
Capital of Guam
Hagåtña
Region
Oceania (Micronesia)
Currency of Guam
United States dollar ($)
Guam Time Zones
UTC+10:00
Current time
Your time
--:--
Guam
--:--
Guam is --
Exit Code in Luxembourg
00 (dial 00 (or + from mobile))
Route Dialing Pattern
00 1-671 +1 671 300 1234
Best Calling Window (Origin Time)
00:00-09:00
International Calling to Guam: FAQs
How do I call Guam from Luxembourg?
To call Guam from Luxembourg, dial the exit code 00, followed by the country code +1-671, then the phone number. For example, to call the number +1 671 300 1234, you would dial: 00 1-671 +1 671 300 1234.
What is the country calling code for Guam when calling from Luxembourg?
The country calling code for Guam is +1-671. To call Guam from Luxembourg, dial +1-671 followed by the local phone number.
How do I make cheap calls to Guam when calling from Luxembourg?
To make affordable calls to Guam from Luxembourg, use CallTuv's browser-based calling service. Simply dial +1-671 followed by the local number. No app download required, and calls start at ~$0.12 per minute.
How much does it cost to call Guam when calling from Luxembourg?
Calls to Guam cost ~$0.12 per minute with CallTuv, billed per minute with no subscription.View rates for Guam →
Can I use + instead of the exit code when calling Guam?
Yes. On mobile phones and in CallTuv, you can usually use +1-671 instead of dialing 00 1-671. The plus sign replaces the international exit code.
Should I remove leading zeros from Guam phone numbers?
In most international dialing formats, remove the trunk prefix or leading zero before the local Guam number, then dial +1-671. If the dialer shows a formatting warning, follow the corrected format before calling.
What is the best time to call Guam from Luxembourg?
The capital-to-capital time gap is 9h destination ahead. A practical window in Luxembourg is 00:00-09:00 local time, which maps to standard business hours in Guam.
