Dialing format
+1 + area code + local number
Guam Country Code +1
Dial +1 before the local number when calling Guam. Confirm the international shape, compare landline and mobile rates, then place the call from your browser when you are ready.
Call Guam online
Full country guideFirst 1 minute free. No card required.
Published rates · calls from United States
Landline $0.10/minMobile $0.10/min
Rates and dialing guideWhen to call
Local clocks usually follow Local time · UTC+10:00. If you do not know the recipient's hours, 09:00-18:00 Guam time is a reasonable courtesy window.
Dial prefix
+1
Full international shape
+1 + area code + local number
Region
Oceania
Best business window
09:00-18:00 Guam time
Languages
Chamorro, English, Spanish
How to use +1 to call Guam online
- Start with the country code +1 and enter the complete national number for Guam. Use this reference shape: +1 + area code + local number.
- Compare your number with the landline and mobile examples below. Remove a domestic trunk prefix only when the international format says to remove it.
- When you are ready to call, open Talkala in your browser, sign in, and allow microphone access when asked. Confirm the quoted price because landline and mobile prices can differ. Use Call Guam online to carry this destination into the phone.
Start with +1 and then enter the area code, mobile prefix, or subscriber number exactly as the destination format requires. If the local number starts with a domestic trunk prefix, check the international format before keeping or removing it. The cheapest practical option is usually the one that makes both the number format and the price clear before you connect.
- Country calling code: +1
- International format: +1 + area code + local number
- Two-letter country abbreviation: GU
- Main time context: Local time / UTC+10:00
Example numbers for Guam
These examples show the number shape to expect. Use them as format guidance, not as numbers to call.
International example+16713001234
Landline example(671) 300-1234
Mobile example(671) 300-1234
Time zones, numbering notes, and rates
A correct country code only solves the first part of the call. Local timing, number portability, and number type can still affect whether you have the right destination details. Landline and mobile prices can differ, so confirm the number type and current price before connecting.
Time zones
Local time / UTC+10:00
Numbering note
Guam uses the shared +1 numbering plan. Enter +1, the three-digit area code, and the seven-digit local number. If the number is written with a leading 1 for a domestic long-distance call, do not enter that 1 twice. Example: +16713001234.
Keep exploring
Popular routes and related calling pages
Use these links to move between Guam route guides, country-code details, live rates, and the browser call setup flow.
Popular routes
Related calling pages
Country guideGuam calling guideRates, dialing context, timing, and browser-call setup.RatesAll Talkala ratesCompare published landline and mobile rates before dialing.Call setupCall Guam onlineOpen a destination-aware call setup page before signing in.HelpFree first minute rulesCheck the launch offer limits before placing a first call.
Trust notes
Sources and limits
These notes explain how to read the dialing, timing, and pricing details on this page.
Numbering source
Talkala checked a country-specific numbering source for Guam. The example numbers are format guides; not every number range or exception has been fully reviewed.
Open numbering sourceRate source
Published rates come from Talkala's public pricing catalog, last updated May 12, 2026. The signed-in dialer confirms the exact full-number rate before the call connects.
Time-zone source and limits
The country-level time-zone summary comes from REST Countries. Check the recipient's current local time before dialing. The suggested calling window is courtesy guidance, not a promise that someone will answer.
Open time-zone sourceWhat a country code cannot guarantee
A country code does not guarantee the call will connect. Local trunk prefixes, numbers moved between networks, blocked number ranges, network availability, caller ID display, and recipient availability can vary.
Common questions
Related questions
What is the country calling code for Guam?
The country calling code for Guam is +1. It is assigned through the International Telecommunication Union and goes before the national number when you call from another country.
How do I dial Guam from another country?
Start with the + key or your country's international access code, then enter +1 and the national number. Remove a domestic trunk prefix only when the international format requires it. Use this complete shape: +1 + area code + local number.
What is the cheapest way to call Guam online?
The cheapest option depends on the service and the specific number you call. Talkala currently lists calls to landlines and mobiles in Guam at $0.10/min. Enter the full number to confirm the final Talkala price before calling.
Do landline and mobile rates to Guam differ?
No. Talkala currently lists both landline and mobile calls to Guam at $0.10/min. The person you call answers a normal phone call without needing Talkala.
What are Talkala's published rates to Guam?
In Talkala's default public price list for calls from United States, landline is $0.10/min and mobile is $0.10/min. Open the country guide for Guam for number examples, calling times, and the latest availability.
When does the free first minute apply?
Accounts with no available credit and no completed paid top-up yet may receive one free first minute, capped at 60 seconds, before adding credit. It only applies when the price for that specific call is $0.99/min or less. That requires at least one published landline or mobile price at or below that ceiling in the price list that applies to your account. Landline and mobile can differ, so your call still must price at or below the ceiling.
Which time zones are used in Guam?
Country-level time-zone data lists Local time / UTC+10:00. For courtesy calling, 09:00-18:00 Guam time is a reasonable starting window when you do not know the recipient's hours. Check the recipient's current local time before dialing.