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.
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?
Guam & Northern Mariana Islands has three mobile operators offering prepaid services easily accessible to travelers:
- DoCoMo Pacific
- IT&E (+iConnect)
- GTA (Teleguam – Guam only)
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)
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:
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.
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.
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 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:
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.
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).
- Check out my Airalo eSIM reviews
- Find out about the best local eSIMs, local travel eSIMs & regional travel eSIMs for every country (lookup tool)
Top-Up, Recharge & Balance Check – DoCoMo Pacific
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.
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:
Price | Plan | Data | Local Minutes 1 | Local SMS 1 | Validity | Activation Code |
---|---|---|---|---|---|---|
2.25 USD | 1 Day (CNMI) | Unlimited | Unlimited | Unlimited | 1 day | HS1 |
2.50 USD | 1 Day (Guam) | Unlimited | Unlimited | Unlimited | 1 day | HS1 |
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.
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:
Price | Plan | Data 1 | Local Minutes | Local SMS | Validity | Activation Code |
---|---|---|---|---|---|---|
6.50 USD | Flex 3 (CNMI) | 3 GB | Unlimited | Unlimited | 3 days | HS3 |
7.50 USD | Flex 3 (Guam) | 3 GB | Unlimited | Unlimited | 3 days | HS3 |
15 USD | Flex 7 | 7 GB | Unlimited | Unlimited | 7 days | HS7 |
30 USD | Flex 14 | 14 GB | Unlimited | Unlimited | 15 days | HS14 |
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.
Jump back to the Table of Contents.
IT&E (+iConnect)
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).
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:
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.
The following two Hafa Adai SIM cards are available:
Price | Data | Local Minutes | International Minutes Credit | Local SMS | Validity |
---|---|---|---|---|---|
20 USD | Unlimited | Unlimited | 10 USD | Unlimited | 4 days |
30 USD | Unlimited | Unlimited | 10 USD | Unlimited | 7 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).
- Check out my Airalo eSIM reviews
- Find out about the best local eSIMs, local travel eSIMs & regional travel eSIMs for every country (lookup tool)
Top-Up, Recharge & Balance Check – IT&E (+iConnect)
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.
The following Prepaid Power Plans are available:
Price | Plan | Data | Local Minutes | Local SMS | Validity | Activation Code |
---|---|---|---|---|---|---|
1.50 USD | 100 MB Plan | 100 MB | Unlimited | Unlimited | 24 hours | *289*101# |
2 USD | 200 MB Plan | 200 MB | Unlimited 1 | Unlimited | 24 hours | *289*102# |
2.50 USD | Unlimited Data Plan | Unlimited | Unlimited 1 | Unlimited | 24 hours | *289*103# |
15 USD | 7-Day Plan | 1 GB/day (7 GB) | Unlimited 1 | Unlimited | 7 days | *289*104# |
60 USD | 30-Day Plan | 40 GB | Unlimited 1 | Unlimited | 30 days | *289*1082# |
1 also to the United States
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.
Jump back to the Table of Contents.
GTA (Teleguam)
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:
Price | Data | Local Minutes 1 | Local SMS 1 | Validity |
---|---|---|---|---|
10 USD | Unlimited | Unlimited | Unlimited | 4 days |
20 USD | Unlimited | Unlimited | Unlimited | 8 days |
35 USD | Unlimited | Unlimited | Unlimited | 15 days |
65 USD | Unlimited | Unlimited | Unlimited | 30 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).
- Check out my Airalo eSIM reviews
- Find out about the best local eSIMs, local travel eSIMs & regional travel eSIMs for every country (lookup tool)
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.
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:
Price | Data | Local Minutes 1 | Local SMS 1 | Validity |
---|---|---|---|---|
2.50 USD | Unlimited | Unlimited | Unlimited | 1 day |
12 USD | Unlimited | Unlimited | Unlimited | 6 days |
35 USD | Unlimited | Unlimited | Unlimited | 17 days |
1for CNMI & Domestic unlimited calls and text
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:
Price | Plan | Validity |
---|---|---|
3 USD | 1 GB | 30 days |
5 USD | 3 GB | 30 days |
10 USD | 5 GB | 30 days |
15 USD | 10 GB | 30 days |
APN/Internet Settings – GTA (Teleguam)
- Name: GTA
- APN: mpulse.gta.net
Note: leave anything not mentioned above untouched.
Jump back to the Table of Contents.
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.