Coverage in French Guiana: what to know
Orange is strongest along the coast, around Cayenne, Kourou and Saint-Laurent, and on the main highways. Much of the interior has no mobile coverage, and the Maroni and Oyapock rivers give patchy, often 2G-only signal.
Checked 3 Nov 2026. Source: wildexpedition.com. Coverage changes, so check your route before you rely on it.
The short answer
The best eSIM for French Guiana is the one that fits your trip and your networks. For two weeks of photos, maps and social, NUM picks 5 GB for 30 days at $4.39, as of 3 Nov 2026.
| Plans from | $1.09 on 3 Nov 2026 |
|---|---|
| Networks on local plans | Orange |
| A week | 3 GB, 15 days, $2.99 |
| Two weeks | 5 GB, 30 days, $4.39 |
| A month | 10 GB, 30 days, $6.39 |
| Phone number | None, data only |
| Payment | Apple Pay, Google Pay or card |
Questions people ask about Kourou
Is there mobile signal at Kourou?
Strong service, but mobile frequencies may be restricted near the space center on launch days.
How much does an eSIM for French Guiana cost?
On 3 Nov 2026, French Guiana plans started at $1.09 and went up to $11.79 for the biggest. The shop always shows today’s price, and the price on the pay button is the price you pay.
Which network works well in French Guiana?
Orange is strongest along the coast, around Cayenne, Kourou and Saint-Laurent, and on the main highways. Much of the interior has no mobile coverage, and the Maroni and Oyapock rivers give patchy, often 2G-only signal.
Which network works well in French Guiana?
Orange is strongest along the coast, around Cayenne, Kourou and Saint-Laurent, and on the main highways. Much of the interior has no mobile coverage, and the Maroni and Oyapock rivers give patchy, often 2G-only signal.
Why does my eSIM show another carrier’s name?
Many travel eSIMs are issued by one carrier and roam on local networks, so your phone can show the issuing carrier’s name while your data runs on a local network. Keep data roaming on for the eSIM.
Will it work on my phone?
Dial *#06# on the phone you’re taking. If you see an EID number, it takes an eSIM. Every iPhone from the XR and XS on does, and the SE from 2020, as do Google Pixel 3 and later and Samsung Galaxy S20 and later. The phone must be carrier-unlocked. Not sure? Text PHONE and your model and we’ll check.
When do I install it?
At home, on wifi, before you fly. Then switch it on when you land. Tell us your landing day and we text you the switch-on steps that morning.
Does it come with a phone number?
No. It’s a data-only eSIM. WhatsApp, LINE, iMessage and FaceTime all work over it, and your home number can stay on for calls and codes.
What if it doesn’t work?
If we can’t issue your eSIM, we refund you in full. If it won’t install or connect, text us and we help you get connected.