Best eSIM for Guam
Guam is a US territory, but the three national US carriers treat it as an international destination — day passes or throttled data unless your plan's international add-on covers it — and plans from elsewhere do the same. A dedicated Guam travel eSIM is usually the better option for stays beyond a day or two.
Last checked: October 2026. Plans and prices change — verify before purchase.
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How much will it cost for your trip?
Tumon Bay (main resort area), Hagåtña (capital) and all main coastal areas have strong 4G/5G. Guam's southern end (Merizo, Inarajan) has good coverage. The War in the Pacific National Historical Park (WWII site) has signal. Ritidian Point National Wildlife Refuge (northern tip) has variable coverage. Offshore diving sites and boat tours have no signal.
Guam has extensive WWII sites — the Asan Bay Overlook, Nimitz Beach and Japanese tunnels in Tumon are all well-covered. The Talofofo Falls and Cetti Bay overlook in the south have good signal. Snorkelling and diving at Fish Eye Marine Park and Blue Hole are accessed by boat — offshore with no signal. Download dive site and historical site maps before any excursion.
Prices sourced from provider websites. Network information sourced from provider documentation (2026).
eSIM — Guam
Network coverage in Guam
Guam has three mobile operators: DoCoMo Pacific (largest, 5G), GTA Teleguam (second, also 5G), and IT&E Guam (4G). 5G coverage is concentrated in the Tumon Bay resort corridor, Hagåtña and Tamuning. Although Guam is a US unincorporated territory, most US domestic phone plans do not include Guam and will charge high international roaming rates or throttle data to 2G/3G — see the field tip above for details.
Among the providers on this page, Airalo routes via DoCoMo Pacific on 4G. For specific dead zones in southern Guam, Ritidian Point and offshore boat excursions, see the field tip above. Travel eSIM providers on this page route via DoCoMo Pacific or GTA — check the carrier listed on each provider card.
Where are you travelling from? Does your plan cover this destination?
All AT&T plansPlan data / 1 day: US$12; plan data / 30 days: US$120.Get an eSIM.
Unlimited UltimateIncluded in the plan.Keep your plan.
Unlimited Plus, Unlimited Welcome5 GB / 1 day: US$12; 20 GB / 30 days: US$100.Get an eSIM.
Experience Beyond (Go5G Next) · Experience More (Go5G Plus, Magenta MAX)Included in the plan.Keep your plan.
Essentials2 GB / 1 day: US$10; 15 GB / 10 days: US$50; 30 GB / 30 days: US$75.Compare: the pass may be enough.
All EE plansNo pass: pay as you go.Get an eSIM.
All O2 plans100 MB / 30 days: £26; 500 MB / 30 days: £45; 1 GB / 30 days: £65.Get an eSIM.
All Vodafone plansNo pass: pay as you go.Get an eSIM.
All Three plansNo pass: pay as you go.Get an eSIM.
All TELUS plansPlan data / 1 day: CA$16; plan data / 3 days: CA$25; plan data / 7 days: CA$40; plan data / 14 days: CA$60.Compare: the pass may be enough.
All Bell plans5 GB / 1 day: CA$16; plan data / 14 days: CA$100; plan data / 30 days: CA$120; plan data / 30 days: CA$320.Get an eSIM.
All Rogers plansNo pass: pay as you go.Get an eSIM.
All Vidéotron plansNo pass: pay as you go. (figure not confirmed by an official source)Get an eSIM.
All Telstra plansPay as you go: A$3/MB.Get an eSIM.
Choice Plus, Plus Family, Plus Promo5 GB / 1 day: A$5.Compare: the pass may be enough.
Other Optus plans1 GB / 1 day: A$10.Compare: the pass may be enough.
All Vodafone (TPG) plansPay as you go: A$1/MB.Get an eSIM.
All Vodafone Ireland plans500 MB / 1 day: €5.Compare: the pass may be enough.
All Three Ireland plansNo pass: pay as you go.Get an eSIM.
All eir plansPay as you go: €4.99/MB.Get an eSIM.
Arrival protocol in Guam
VPN, passwords and documents
On hotel or café Wi-Fi, a VPN can be useful to keep your browsing private from the network operator. A password manager is also worth having for managing account access on the road. A secure cloud backup of your passport, visa and accommodation details can also be useful — keep an offline copy too. None of these are mandatory.
Mistakes to avoid in Guam
Continuing your trip in Oceania?
Many travellers combine Guam with neighbouring countries. See our guides for eSIM in Palau and eSIM in Micronesia. For multi-country trips combining Guam with neighbouring Oceania destinations, our global regional plan comparison may be useful.