TripoSIM's Guam eSIMs connect to 2 local networks (GTA and GTA Wireless), with 5G available on at least some plans. There are 10 plans, and top-up support is listed for at least some catalog entries.
Networks appearing in the country catalog
- GTA
- GTA Wireless
The country dataset lists 2 local operator names across TripoSIM catalog entries. Those names can belong to different purchasable plans. There is no proof in this country summary that one purchased profile can use every named network. Check the network list for the exact SKU before paying. Manual selection only works if your purchased plan is authorized to use the selected operator.
Guam ranks #4 of 12 Oceania destinations by number of listed partner networks.
5G in Guam
6 of 12 Oceania destinations list 5G. 5G is listed for at least some plans. You also need a 5G-capable phone, and 5G availability varies by plan, location and device; the catalog-wide flag is not a coverage guarantee. 5G rarely changes how much data you use, only how fast it arrives.
Guam plan snapshot
| Plans listed | 10 |
|---|---|
| Cheapest plan | $4.98 |
| Median price per GB | $4.84 |
| 1 GB / 5 GB / 10 GB | $4.98 / $25.00 / $44.30 |
| Unlimited | from $8.57, 2 GB/day full speed, then 1,024 kbps |
Top-ups and validity
Top-up support is listed for at least some offers. Before purchasing, verify whether your exact SKU allows a top-up and whether it changes validity or only adds data.
Pre-trip checklist for Guam
- Your phone is unlocked and supports eSIM (and 5G if you want it).
- The plan page lists Guam itself, not just a regional name.
- The validity covers every day from arrival to departure, and you know what starts the clock.
- You checked which of the catalog-listed networks your chosen SKU actually permits.
- You know how to top up from your phone.
Other Oceania destinations
| Destination | Networks | 5G | Top-up |
|---|---|---|---|
| Guam | 2 | Yes | Yes |
| New Zealand | 4 | No | Yes |
| Samoa | 3 | No | Yes |
| Australia | 2 | Yes | Yes |
| Fiji | 1 | No | Yes |
| French Polynesia | 1 | No | Yes |
| Tonga | 1 | Yes | Yes |
Questions travelers ask about this destination
Which network does a Guam eSIM use?
TripoSIM lists GTA and GTA Wireless as partner networks for Guam. Not all listed networks necessarily belong to the same SKU.
Does a Guam travel eSIM support 5G?
Yes, 5G is listed for at least some Guam plans. You need a 5G-capable phone, and 5G is mostly in cities.
Can I top up a Guam eSIM if I run out of data?
Yes, top-ups are listed for Guam, but verify eligibility and the process for the purchased SKU. Check the plan page for how top-ups affect validity.
Source and method
Figures come from the TripoSIM travel eSIM dataset (CC BY 4.0), generated from TripoSIM's live catalog on 2 November 2026: country-level observed price fields in USD, which do not verify a purchasable plan for a specific trip. Rankings compare the median price per GB across observed catalog entries in each country. This site is owned by the same company as TripoSIM, so this is first-party data, not an independent market survey. Prices, plan duration and individual terms can change; the checkout page is authoritative. A country-level network list can combine different SKUs, not networks guaranteed in any one purchased profile.