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SIM Cards in Guam: The Best Prepaid Plans | 2024 Guide

Guam – an unincorporated territory of the United States in the Pacific Ocean. It is closer to Southeast and East Asia and Oceania than mainland United States.

Known for its stunning beaches, crystal clear ocean water, and terrific resorts.

The Northern Mariana Islands – the Commonwealth of the Northern Mariana Islands (CNMI) is another unincorporated territory of the United States.

Known for its famous islands like Saipan, Tinian, and Rota.

Each island has its unique traits. Bord Island on Saipan. The prehistoric ruins in Tinian. And the relaxed atmosphere in Rota.

In general, there should be no reason to be bored when in Guam & the Northern Mariana Islands. There is a lot to do.

Do note that if you plan on sharing your experiences online, you may go back home and have to deal with an expensive roaming bill. Roaming can be expensive and should be avoided whenever you can. At least, that is if you like money.

Especially if you have a SIM card from mainland USA because the big three (AT&T, T-Mobile & Verizon) do not operate in Guam or the Northern Mariana Islands – you will be roaming instead.

Luckily, you can get local SIM cards, allowing you to enjoy local rates – much cheaper than international roaming.

You can get a SIM card for 20 USD in Guam and the Northern Mariana Islands by visiting the stores of DoCoMo Pacific, IT&E & GTA (Teleguam). 7 GB valid for 7 days will cost you at least 15 USD.

These prices may seem high, but roaming bills can be much higher!

And getting a local SIM card is truly worth it – for real!

In this guide, I will go over everything you need to know about buying a SIM card in Guam & the Northern Mariana Islands. Let's do this.

Buying a SIM Card in Guam Guide (logos of DoCoMo Pacific, GTA Teleguam & IT&E)

Original publication: 30th of January 2020. Last updated: 14th of January 2024.


Table of Contents

What is the Best SIM Card in Guam & Northern Mariana Islands?

If you want to buy the best SIM card in Guam & the Northern Mariana Islands, I recommend going with DoCoMo Pacific or GTA. DoCoMo Pacific is regarded as the best overall by the locals. GTA won the Best Mobile Coverage award twice in 2019.

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Guam & Northern Mariana Islands has three mobile operators offering prepaid services easily accessible to travelers:

  • DoCoMo Pacific
  • IT&E (+iConnect)
  • GTA (Teleguam – Guam only)
Cellular Connectivity Illustration by Phone Travel Wiz

Anyone, including tourists and visitors, can buy a Guam & Northern Mariana Islands SIM card without restrictions.

  • Find out which countries have SIM card registration regulations and what is required from you (lookup tool)
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Where Can You Buy a Guam & Northern Mariana Islands SIM Card (+Prices)?

You can get a SIM card in the official stores of DoCoMo Pacific, IT&E (+iConnect) & GTA (Teleguam) and authorized resellers, including kiosks, grocery stores, and gas stations. Some airports may sell (tourist) SIM cards (at higher prices).

You can expect to pay the following for Guam & Northern Mariana Islands SIM cards:

  • DoCoMo Pacific: 19.95 USD
  • IT&E (+iConnect): 19.95 USD
  • GTA (Teleguam): 20 USD

The following Guam & Northern Mariana Islands mobile operators also have SIM cards targeting tourists:

  • DoCoMo Pacific: 25 USD
  • IT&E (+iConnect): 20 USD & 30 USD

Be aware that SIM cards sold at airports can be more expensive than the prices mentioned earlier.

(Travel) eSIMs for Guam & Northern Mariana Islands

The use of (travel) eSIMs has exploded in recent years.

Not only do more phones have eSIM capability (some US-sold iPhones are eSIM-only), but the number of providers adopting technology has proliferated as well.

This includes local mobile operators offering eSIM and platforms selling eSIMs (travel eSIMs).

If you want a local Guam & Northern Mariana Islands eSIM, you are out of luck because the mobile operators do not sell them (to prepaid customers).

If you do not wish to deal with registration for whatever reason, like privacy, consider getting a travel eSIM for Guam & Northern Mariana Islands.

Many eSIM providers have eSIMs for Guam & Northern Mariana Islands and even global eSIMs, which I discuss in my Guam & Northern Mariana Islands eSIM buying guide.

Buying an eSIM for Guam Guide (Airalo, Simcorner & ki ora!)

Here is a quick introduction to your Guam & Northern Mariana Islands travel eSIM option:

  • Airalo: Håfa Adai (Guam & Northern Mariana Islands only)

Use these discount code when getting this travel eSIM:

  • Airalo: MAR15 for 15% off (if you have never bought an Airalo eSIM before). Otherwise, MAR10 for 10% (for existing users) – only the first 3000 users can redeem either discount code)

If you want to know about all the prices, data options & covered countries (for the regional and global eSIMs), check out my Guam & Northern Mariana Islands eSIM buying guide.

Buying an eSIM for Guam Guide (Airalo, Simcorner & ki ora!)

Guam & Northern Mariana Islands Prepaid SIM Cards Explored

Below, I will guide you through DoCoMo Pacific, IT&E (+iConnect) & GTA (Teleguam), and go through:

  • Background information
  • Mobile coverage
  • SIM card types, prices, and availability
  • Recharge/top-up information
  • Combo plans, data plans, and special packs (such as social media packs) 

Let's see what Guam & Northern Mariana Islands mobile operators can offer us.


DoCoMo Pacific

DoCoMo Pacific Guam & the Northern Mariana Islands Logo
© DoCoMo Pacific

DoCoMo Pacific is one of the largest mobile operators in Guam & the Northern Mariana Islands. It was the first mobile operator to offer 5G NR in both territories.

DoCoMo Pacific uses the following frequencies:

  • 2G: 1900 MHz
  • 3G: 850 MHz
  • 4G/LTE: 700 MHz (Band 17)
  • 5G NR: Unknown

This is what you will learn about DoCoMo Pacific:

* Coverage
* How to Get a DoCoMo Pacific SIM Card & SIM Card Price
* Topping Up Options & Methods + Balance Check
* Plans & Packages
* APN/Internet Settings

Coverage – DoCoMo Pacific

DoCoMo Pacific has extensive coverage in Guam & the Northern Mariana Islands.

It may have the best coverage. But it is probably a tie with GTA (Teleguam).

Below is DoCoMo Pacific's coverage map produced by Speedtest:

DoCoMo Pacific Guam Coverage Map
Guam | Source
DoCoMo Pacific Rota Coverage Map
Rota | Source
DoCoMo Pacific Northern Mariana Islands Coverage Map
CNMI | Source
DoCoMo Pacific Guam & Northern Mariana Islands Coverage Map
Both territories | Source

However, click here to see DoCoMo Pacific's official coverage map.

SIM Card Price – DoCoMo Pacific

You can get a DoCoMo Pacific SIM Card for 5 USD with 5 USD in credit or 10 USD with 10 USD in credit in DoCoMo Pacific stores. It is also possible to buy SIM cards at Guam Antonia B. Won Pat International Airport & Saipan Francisco C. Ada International Airport.

Short-term travelers can also take advantage of the Visitor SIM card. It costs 25 USD and features 7 GB of data, unlimited local minutes, unlimited local SMS, and 15 international minutes to China, Japan, Russia, South Korea, Taiwan & the United States – all valid for 7 days.

DoCoMo Pacific Visitor SIM Card
© DoCoMo Pacific

You have to text 7 to 8687 to activate your Visitor SIM.

DoCoMo Pacific has no eSIMs – not even for postpaid customers.

Therefore, if you wish to get an eSIM, you can go with the Guam (Ki Ora!) eSIMs from Airalo (1 GB/7 days). – most popular with Phone Travel Wiz readers

Note: Phone Travel Wiz reader popularity ranking was updated in October based on data up to the 11th of October (2023 data only).

Guam Håfa Adai eSIM Airalo
© Airalo
Recommended eSIMs by Phone Travel Wiz (logos of Airalo, Holafly & Nomad)
  • Find out about the best local eSIMs, local travel eSIMs & regional travel eSIMs for every country (lookup tool)
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Top-Up, Recharge & Balance Check – DoCoMo Pacific

DoCoMo Pacific top-up vouchers, in values between 5 USD to 20 USD, are sold in DoCoMo Pacific stores and other stores, including kiosks, phone stores, and grocery stores.

The following top-up options are available:

  • 5 USD
  • 10 USD
  • 20 USD

To top up your DoCoMo Pacific SIM card, dial *111*VoucherCode#.

For example, if your voucher code is 123456, you would dial *111*123456#.

You can also recharge online with (international) debit and credit cards.

Dial *112# to check your DoCoMo Pacific balance.

Packages, Plans, Bundles & Offers – DoCoMo Pacific

DoCoMo Pacific has two data-featured prepaid plans: Endless Flex (combo) & Multi-Day Flex Plans (combo).

I will list all the prices in USD.

To convert CVE to your currency (let's say JPY – Japanese Yen) with up-to-date exchange rates, use the Wise Currency Converter tool.

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© Wise
Endless Flex – DoCoMo Pacific

The Endless Flex plans are daily combo bundles with data (without 5G NR access), minutes & SMS.

Be aware of the price difference of 0.25 USD when activating the plan in the Northern Mariana Islands (2.25 USD) and Guam (2.50 USD).

You can activate Endless Flex by texting the Activation Code to 3282:

PricePlanDataLocal Minutes 1Local SMS 1ValidityActivation Code
2.25 USD1 Day (CNMI)UnlimitedUnlimitedUnlimited1 dayHS1
2.50 USD1 Day (Guam)UnlimitedUnlimitedUnlimited1 dayHS1

1 also to the United States

Endless Flex plans auto-renew.

Multi-Day Flex Plans – DoCoMo Pacific

The Multi-Day Flex Plans are combo bundles with data, unlimited data with Social Pass (Facebook, Facebook Messenger, Instagram, Line, Skype, Snapchat, Twitter, WeChat & WhatsApp), minutes, and SMS.

DoCoMo Pacific Social Pass Apps
© DoCoMo Pacific

Be aware of the price difference of 1 USD when activating Flex 3 in the Northern Mariana Islands (6.50 USD) and Guam (7.50 USD).

You can activate Multi-Day Flex Plans by texting the Activation Code to 3282:

PricePlanData 1Local MinutesLocal SMSValidityActivation Code
6.50 USDFlex 3 (CNMI)3 GBUnlimitedUnlimited3 daysHS3
7.50 USDFlex 3 (Guam)3 GBUnlimitedUnlimited3 daysHS3
15 USDFlex 77 GBUnlimitedUnlimited7 daysHS7
30 USDFlex 1414 GBUnlimitedUnlimited15 daysHS14

You can still browse the web when you have exhausted your data allowance. However, your speeds will be throttled to 256 Kbps.

Multi-Day Flex Plans auto-renew.

APN/Internet Settings – DoCoMo Pacific

  • Name: docomo
  • APN: internet
  • APN type: default OR internet

Note: leave anything not mentioned above untouched.

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IT&E (+iConnect)

IT&E Guam and the Northern Mariana Islands Logo
© IT&E

IT&E is as big as DoCoMo Pacific or is the largest mobile operator in Guam & the Northern Mariana Islands after IT&E acquired iConnect (Advanced).

iConnect Guam & the Northern Mariana Islands
© iConnect

IT&E uses the following frequencies:

  • 2G: 850 MHz & 1900 MHz
  • 3G: 850 MHz & 1900 MHz
  • 4G/LTE: 700 MHz (Band 12), 1700 MHz (Band 4) & 1900 MHz (Band 2)

This is what you will learn about IT&E:

* Coverage
* How to Get an IT&E SIM Card & SIM Card Price
* Topping Up Options & Methods + Balance Check
* Plans & Packages
* APN/Internet Settings

Coverage – IT&E (+iConnect)

IT&E has extensive coverage in Guam & the Northern Mariana Islands.

Below are IT&E's coverage maps produced by Speedtest:

IT&E Guam Coverage Map
Guam | Source
IT&E Rota Coverage Map
Rota | Source
IT&E Northern Mariana Islands Coverage Map
CNMI | Source
IT&E Guam & the Northern Mariana Islands Coverage Map
Both territories | Source

SIM Card Price – IT&E (+iConnect)

You can get an IT&E SIM Card for 19.95 USD with 10 USD in credit in IT&E stores.

Dial *670# to activate your IT&E SIM card if your phone number starts 670 (bought in the Northern Mariana Islands) and *671# if the phone number starts with 671 (bought in Guam).

Short-term travelers can also take advantage of the Hafa Adai SIM cards – IT&E's tourist SIM cards. They include unlimited data, unlimited local minutes, 10 USD international call credit, and unlimited local SMS – valid for up to 7 days.

IT&E Hafa Adai SIM Card
© IT&E

The following two Hafa Adai SIM cards are available:

PriceDataLocal MinutesInternational Minutes CreditLocal SMSValidity
20 USDUnlimitedUnlimited10 USDUnlimited4 days
30 USDUnlimitedUnlimited10 USDUnlimited7 days

Besides getting Hafa Adai SIM cards at IT&E stores, you can also grab them at Shell gas stations, 76 gas stations, Andersen Airforce Exchange Services (AAFES), Bon Voyage stores (Guam), and various gift shops, resorts, and supermarkets in Saipan.

Do note that Hafa Adai SIM cards cannot be extended.

IT&E has no eSIMs – not even for postpaid customers.

Therefore, if you wish to get an eSIM, you can go with the Guam (Ki Ora!) eSIMs from Airalo (1 GB/7 days). – most popular with Phone Travel Wiz readers

Note: Phone Travel Wiz reader popularity ranking was updated in October based on data up to the 11th of October (2023 data only).

Guam Håfa Adai eSIM Airalo
© Airalo
Recommended eSIMs by Phone Travel Wiz (logos of Airalo, Holafly & Nomad)
  • Find out about the best local eSIMs, local travel eSIMs & regional travel eSIMs for every country (lookup tool)
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Top-Up, Recharge & Balance Check – IT&E (+iConnect)

IT&E top-up vouchers, in values between 5 USD to 20 USD, are sold in IT&E stores and other stores, including kiosks, phone stores, and grocery stores.

The following top-up options are available:

  • 5 USD
  • 10 USD
  • 20 USD
IT&E Top Up Cards
© IT&E

To top up your IT&E SIM card, text LOAD VoucherCode to 2931.

For example, if your voucher code is 123456, you would text LOAD 123456 to 2931.

You can also recharge online with (international) debit and credit cards.

Dial *87 to check your IT&E balance.

Packages, Plans, Bundles & Offers – IT&E (+iConnect)

IT&E has the Prepaid Power Plans, which are combo bundles with data (without 5G NR access), minutes, and SMS.

I will list all the prices in USD.

To convert CVE to your currency (let's say MYR – Malaysian Ringgit) with up-to-date exchange rates, use the Wise Currency Converter tool.

Wise Currency Exchange Banner
© Wise

The following Prepaid Power Plans are available:

PricePlanDataLocal MinutesLocal SMSValidityActivation Code
1.50 USD100 MB Plan100 MBUnlimitedUnlimited24 hours*289*101#
2 USD200 MB Plan200 MBUnlimited 1Unlimited24 hours*289*102#
2.50 USDUnlimited Data PlanUnlimitedUnlimited 1Unlimited24 hours*289*103#
15 USD7-Day Plan1 GB/day (7 GB)Unlimited 1Unlimited7 days*289*104#
60 USD30-Day Plan40 GBUnlimited 1Unlimited30 days*289*1082#

1 also to the United States

IT&E Guam Prepaid Power Plans

Prepaid Power Plans auto-renew. To disable auto-renewal, text CANCEL to 3282.

APN/Internet Settings – IT&E (+iConnect)

  • Name: ITE
  • APN: prepaid.ite.net

Note: leave anything not mentioned above untouched.

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GTA (Teleguam)

GTA Teleguam Guam & the Northern Mariana Islands Logo
© GTA

GTA (Teleguam) is the smallest operator in Guam. This is also in part due to GTA only being active in Guam.

GTA uses the following frequencies:

  • 2G: 850 MHz & 1900 MHz
  • 3G: 850 MHz & 1900 MHz
  • 4G/LTE: 700 MHz (Band 12) & 1700 MHz (Band 4)

This is what you will learn about GTA:

* Coverage
* How to Get a GTA SIM Card & SIM Card Price
* Topping Up Options & Methods + Balance Check
* Plans & Packages
* APN/Internet Settings

Coverage – GTA (Teleguam)

GTA has extensive coverage in Guam.

It even won the Guam Speedtest Awards Best Mobile Coverage twice in 2019 (Q1-Q2 & Q3-Q4).

Below is GTA's coverage map produced by Speedtest:

SIM Card Price – GTA (Teleguam)

You can get a GTA SIM Card for 10 USD or 20 USD or 35 USD or 65 USD in GTA stores.

The following four GTA SIM cards are available:

PriceDataLocal Minutes 1Local SMS 1Validity
10 USDUnlimitedUnlimitedUnlimited4 days
20 USDUnlimitedUnlimitedUnlimited8 days
35 USDUnlimitedUnlimitedUnlimited15 days
65 USDUnlimitedUnlimitedUnlimited30 days

1 + CNMI & Domestic unlimited calls and text

You have to dial *488# to activate your GTA SIM card.

GTA has no eSIMs – not even for postpaid customers.

Therefore, if you wish to get an eSIM, you can go with the Guam (Ki Ora!) eSIMs from Airalo (1 GB/7 days). – most popular with Phone Travel Wiz readers

Note: Phone Travel Wiz reader popularity ranking was updated in October based on data up to the 11th of October (2023 data only).

Guam Håfa Adai eSIM Airalo
© Airalo
Recommended eSIMs by Phone Travel Wiz (logos of Airalo, Holafly & Nomad)
  • Find out about the best local eSIMs, local travel eSIMs & regional travel eSIMs for every country (lookup tool)
Best Local & Travel eSIMs Worldwide Tool by Phone Travel Wiz
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Top-Up, Recharge & Balance Check – GTA (Teleguam)

GTA Pacific top-up vouchers are sold in GTA stores and other stores, including kiosks, phone stores, and grocery stores.

To top up your GTA SIM card, dial *488# and follow the instructions. The same can be done by dialing *55. You can use the same shortcodes for checking your GTA balance.

You can also recharge online with (international) debit and credit cards.

Packages, Plans, Bundles & Offers – GTA (Teleguam)

GTA has two data-featured prepaid plans: Prepaid Plans (combo) & Data Add-On Plans (data add-ons).

All GTA plans can be activated by dialing *488# and selecting option 3.

I will list all the prices in USD.

To convert CVE to your currency (let's say MYR – Malaysian Ringgit) with up-to-date exchange rates, use the Wise Currency Converter tool.

Wise Currency Exchange Banner
© Wise
Prepaid Plans – GTA (Teleguam)

The Prepaid Plans are combo plans with data (without 5G NR access), minutes & SMS.

The following Prepaid Plans are available, which can be activated by dialing *488# and selection option 1 or dialing *55:

PriceDataLocal Minutes 1Local SMS 1Validity
2.50 USDUnlimitedUnlimitedUnlimited 1 day
12 USDUnlimitedUnlimitedUnlimited6 days
35 USDUnlimitedUnlimitedUnlimited17 days

1for CNMI & Domestic unlimited calls and text

GTA Guam Unlimited Plans
Data Add-On Plans – GTA (Teleguam)

The Data Add-On Plans are, as the name implies, data add-ons (without 5G NR access). They cannot be purchased as standalone plans.

The following Data Add-On Plans are available, which can be activated by dialing *488# and selection option 1 or dialing *55:

PricePlanValidity
3 USD1 GB30 days
5 USD3 GB30 days
10 USD5 GB30 days
15 USD10 GB30 days
GTA Guam Data Add-On Plans

APN/Internet Settings – GTA (Teleguam)

  • Name: GTA
  • APN: mpulse.gta.net

Note: leave anything not mentioned above untouched.

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The Preferred Way to Stay Connected When Traveling in Guam & the Northern Mariana Islands

Getting a SIM card from DoCoMo Pacific would do you well when considering a Guamanian & the Northern Mariana Islands card.

Going to other places around the world? You should also check out my SIM card buying guides for other destinations worldwide.