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Unlimited International Calling to Guam using
Ooma World Plan.

Now only:

CDN$ 9.99/mo

for 12 months.

Plus one-time purchase of Ooma Telo: CDN$ 99.99

After purchase of Ooma Telo for the first 12 months, then only $17.99/mo plus applicable taxes and fees. Unlimited calling subject to normal residential use limitations. +Applicable taxes and fees. Includes unlimited minutes to landlines in over 60 countries and to mobile phones in over 10 countries.


How to Call Guam from the U.S.

Because Guam is part of the North American Numbering Plan.

The process is the same as making a call within the United States:

  • First dial 1, the country code for Guam.
  • Now dial 671, which is the area code.
  • Next dial the seven-digit local number.
Calls made through the Ooma Mobile app do not use any cellular minutes or incur international charges on your wireless bill. Instead, these calls are routed over your data connection and may count against the data allotment with your cellular phone provider if you are not connected to Wi-Fi.

If you encounter any issues or have any further questions, feel free to get in contact with us via our Customer Support website at https://support.ooma.com.

If you frequently call Guam or other international locations, upgrading to one of Ooma’s dialing plans can save you money and give you the freedom to make unlimited international calls. Both the Ooma World Plan and the Ooma World Plus Plan provide unlimited calls to Guam. The difference between the two plans is that the Ooma World Plus Plan offers unlimited calling to a wider range of countries.

In total, the Ooma World Plan gives you unlimited calling to landline numbers in 60 countries and mobile numbers in 10 countries for a low rate of $17.99 per month. The Ooma World Plus Plan expands your global access with unlimited calls to landlines in 70 countries and mobile phones in 40 countries for just $25.99 per month.

In order to decide which plan is best for you, it’s helpful to review both international plans and see which countries are included.

International Rates

Country Code Area/City Code Country/City Standard Rate Per Minute Premier Rate Per Minute Ooma World Plan Ooma World Plus
1 671 Guam 0.046 0.046

Free Calls

While the Ooma World plans give you unlimited calls to many locations, you can also use Ooma to make free international calls. Any Ooma-to-Ooma calls are 100% free regardless of the amount of time you talk, so if your contact in Guam is also an Ooma customer, you can talk as long as you want and it won’t cost a penny. You’ll also have calls in crystal-clear HD voice, which is much better quality than standard telephone lines can provide.

International Calling Cards

International calling cards for Guam typically charge rates that are cheaper than traditional phone plans.

For even more savings, Ooma offers international calling plans that have unlimited minutes to many global locations. If you imagine you’ll spend several hours per month calling internationally, whether it’s catching up with your family or calling for work, upgrading to one of Ooma’s dialing plans will let you spend as long as you’d like on the phone without recharging calling cards or accumulating a high monthly bill.

Use Ooma to call Guam

For calls to Guam from the U.S.A., Ooma is a popular choice because of its affordable dialing rates and high-quality audio with PureVoice™ technology. Affordable dialing options range from Basic Service with low per-minute rates to international dialing plans with unlimited monthly calls.

Using Ooma’s Basic Service or Premier Service, calls to Guam are billed at a low rate of $0.046 per minute. Basic Service has no monthly fee for unlimited calling within the U.S.A., and international calls are prepaid, so charges are deducted from your balance. With Premier Service, per-minute charges are billed in addition to the $9.99 monthly charge for the plan.

Although the dialing rates are the same between Basic and Premier, there are a whole host of additional features you gain access to with Premier Service. For example, Premier customers get powerful call-blocking tools to protect against telemarketers, the Ooma Mobile app for making calls from your mobile phone, voicemail access through email, free unlimited calling to Canada and Mexico, plus many others that Basic Service doesn’t provide. You pay applicable monthly taxes and fees.

Top ten most called countries from USA