Does my German EU roaming also apply on Guam?

No. Guam is an unincorporated territory of the USA and not part of the European Union. EU roaming rules do not apply here. Without a local eSIM or SIM card you pay expensive international roaming fees to your German provider. A Reisechip eSIM is the cheaper and more convenient alternative.

Does the eSIM also work in remote parts of Guam?

GTA TeleGuam and Docomo Pacific cover around 90% of the island. In the tourist regions such as Tumon Bay, Hagåtña and Agana you have stable 4G reception. In the southern jungle areas and some stretches of coast reception can be weaker, so plan on downloaded offline maps there.

How much data do I need for Guam?

For a typical week with navigation, social media and the occasional video call home, 3–5 GB is plenty. If you stream a lot or upload photos every day, go for a 10 GB plan. Guam has hardly any public Wi-Fi outside hotels, so a generous package is worth it.

Is Guam covered by a US eSIM plan?

That depends on the provider. Guam uses US telephone area codes and is US territory, but not every US plan covers it. A Reisechip eSIM issued specifically for Guam makes sure you connect to local networks and do not run into gaps in US roaming.

Do I need a plug adapter on Guam?

Yes. Guam uses North American plugs of type A and B, the flat two-pin and three-pin plugs. German Schuko plugs do not fit. Pack a travel adapter so that you can charge your smartphone and other devices.

How much does an eSIM for Guam cost?

eSIM data plans for Guam start at €7.69. You pay once for the data you choose — no contract, no monthly fee and no surprise roaming bill. Bigger data packs and longer validity cost more.

Which mobile networks does the eSIM use in Guam?

In Guam the eSIM connects automatically to local networks such as GTA TeleGuam, Docomo Pacific, GTA Teleguam, IT&E, on 4G/LTE and on 5G where it is available. Coverage in populated areas is around 90% of the population. Your phone always picks the strongest network nearby.

Will I keep my German phone number with an eSIM in Guam?

Yes. Your German SIM and number stay active, and the travel eSIM runs alongside it as a data-only plan. You stay reachable on WhatsApp, iMessage or over Wi-Fi while browsing on the local network. Normal calls and texts still go through your German number, where roaming charges may apply.

Can I top up or extend my Guam data plan?

Yes. When your data runs out or the plan expires, just buy another pack. The eSIM profile already on your phone stays in place, so there is nothing to reinstall and you stay online without a break.

Can I use the eSIM as a Wi-Fi hotspot in Guam?

Yes. You can share the connection with a laptop, tablet or a travel companion through your phone's personal hotspot. Hotspot use comes out of the same data allowance, so choose a slightly larger pack if you plan to tether.

Should I install the eSIM before I leave or after I arrive?

Install it at home over Wi-Fi before you travel. The data plan switches on automatically when your phone joins a network in Guam, so you are online the moment you land instead of hunting for airport Wi-Fi.

Will the eSIM work on my phone?

It works on any eSIM-capable phone, including iPhone XS and later, Samsung Galaxy S20 and later and Google Pixel 3 and later. The phone must also be unlocked (not tied to one network). To check yours, look for "Add eSIM" under Mobile Data or Connections in your settings.

eSIM plans for Guam

Instant delivery

Guam: your travel eSIM from €7.69 works as soon as you land and connects to GTA TeleGuam, Docomo Pacific, GTA Teleguam, IT&E (4G/LTE where available), network coverage 90% of the population. Install it by QR code before you leave Germany — no roaming charges, no SIM swap.

Your selection

Select a plan

Payment methods

Instant email delivery
30-day refund on unused eSIMs
Support in English
Visa · Mastercard · Maestro · Apple Pay · PayPal

eSIM for Guam at a glance

Price from: €7.69
Local networks: GTA TeleGuam, Docomo Pacific, GTA Teleguam, IT&E
Technology: 4G/LTE
Network coverage: 90% of the population
Activation: QR code — install before you leave
Suggested data: 1–3 GB light use · 5 GB with social media · 10 GB+ streaming

All eSIM plans for Guam

Data	Validity	Price
Unlimited	1 day	€7.69
Unlimited	3 days	€7.99
Unlimited	5 days	€18.99
Unlimited	7 days	€17.99
Unlimited	10 days	€24.99
Unlimited	15 days	€36.99
Unlimited	30 days	€68.99
1 GB	7 days	€7.99
2 GB	15 days	€14.99
3 GB	30 days	€21.99
5 GB	30 days	€28.99
10 GB	30 days	€54.99
20 GB	30 days	€76.99
50 GB	30 days	€195.99

Guam is a small island paradise in the middle of the Pacific: American territory with Caribbean flair and Far Eastern influence. Whether you snorkel over the coral reefs off Tumon Bay, explore the historic latte stone pillars or plan excursions through the tropical jungle, you need dependable internet for navigation, weather checks and the perfect series of beach photos. With a Reisechip eSIM you are online straight after landing, with no SIM swap and no roaming shock on your next phone bill. Guam is far away, but staying connected on mobile is simple.

Flight time from Germany

about 16–20 hours (with a stopover)

Time zone

UTC+10 (9 hours ahead of CET)

Best time to travel

January–May (dry season)

Plug type

Type A/B (adapter needed)

Why get an eSIM for Guam?

Guam is more than 10,000 kilometres from Germany and is not EU territory, so European roaming rules do not apply here. Anyone who arrives unprepared often pays horrendous roaming fees to their German provider. A Reisechip eSIM solves this problem neatly: you install it before you fly, activate it on arrival and surf straight away on the local 4G/LTE network of GTA TeleGuam or Docomo Pacific. Network coverage on the island is around 90 percent, good enough for all the tourist hotspots from Hagåtña to Inarajan. Because Guam is a popular destination for divers and nature lovers, you need mobile data especially for tide apps, dive site maps and emergency communication away from the resorts. With an eSIM you keep your German number active for calls and use Guam's network for everything else.

What is network coverage like in Guam?

Network operator

GTA TeleGuam

+ Docomo Pacific

Technology

4G/LTE

Coverage

90% of the population

How do I install an eSIM for Guam?

1
Buy a plan
Pick the data plan for Guam that fits your trip and check out.
2
Scan the QR code
Open the email with your QR code and scan it with your phone's camera while you are still in Germany.
3
Add the eSIM
Follow the steps on your phone to add the eSIM as a data plan. Your German SIM stays in place.
4
Go online
Switch on the eSIM when you land in Guam and you are online straight away.

1
Buy a plan
Pick the data plan for Guam that fits your trip and check out.
2
Scan the QR code
Open the email with your QR code and scan it with your phone's camera while you are still in Germany.
3
Add the eSIM
Follow the steps on your phone to add the eSIM as a data plan. Your German SIM stays in place.
4
Go online
Switch on the eSIM when you land in Guam and you are online straight away.

Which eSIM plan suits me?

Holiday

Away for 1–2 weeks? A 3–5 GB plan covers maps, photos and messages.

Business trip

For video calls and email on the go, choose at least 5 GB or an unlimited plan.

Backpacking

On longer trips, a 10 GB+ plan or a regional plan for several countries pays off.

Family

With several devices, pick a plan with hotspot support and enough data for everyone.

eSIM vs. local SIM vs. Wi-Fi hotspot — what works best for Guam?

	eSIM	Local SIM card	Wi-Fi hotspot
Activation	Instant (QR code)	Buy on arrival	Pick-up or delivery
Setup	2 minutes	SIM swap needed	Extra device
Price	From €7.69	€5–30	€5–15 per day
Network	Local 4G/LTE	Local 4G/LTE	Local 4G/LTE
Devices	1 smartphone	1 smartphone	Up to 5 devices
Flexibility	Top up any time	Fixed allowance	Daily rental
Best for	Most travellers	Long stays	Groups and families

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eSIM for Guam: frequently asked questions

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