A Virgin Islands trip might start with a flight into St Thomas, continue by ferry to Tortola and fill the days with sailing between Virgin Gorda, Jost Van Dyke and St John. The two groups of islands are a short boat ride apart, but one is a US territory and the other British, each with its own mobile networks, and out on the water a phone can switch from one side to the other without warning.
This guide covers an eSIM for the US and British Virgin Islands: who pays roaming where, what happens to your phone on sailing days, the plan that covers both groups, and who to call on land and at sea.
Key facts for the US and British Virgin Islands
- Two territories: the US Virgin Islands (St Thomas, St John, St Croix) and the British Virgin Islands (Tortola, Virgin Gorda, Jost Van Dyke)
- One plan for both: the Americas zone covers both groups; the Caribbean zone covers the BVI but not the US Virgin Islands
- EU roaming: neither is covered by Roam Like at Home
- Local networks: each side has its own; the network your eSIM uses depends on the plan
- Emergency numbers: 911 on both; in the BVI, 311 for non-urgent police matters and 767 for sea rescue
Two territories, two sets of networks
Ferries link St Thomas and St John with Tortola and Jost Van Dyke, and sailing charters cross between the two groups, so many trips touch both. Neither group is in Roam Like at Home, so a European SIM roams on both on its operator's own terms. With a US SIM, check whether your plan counts the US Virgin Islands as domestic, and what it charges in the BVI.
Sailing days: when your phone changes sides
On the water between the islands, a phone can switch between US and BVI networks without warning. On a home SIM, that can change what you pay. On a plan that covers only one side, such as the Caribbean plan, which includes the BVI but not the US Virgin Islands, the other side's networks are not covered, so choose a network from your side manually in your phone's mobile settings while one is in range. On an Americas plan, a switch between US and BVI networks stays within the plan.
Further from the islands, do not count on a signal. In the BVI, power cuts can also hit telecommunications.
Which plan fits your trip
For a trip that touches both groups, Americas plans cover the US Virgin Islands and the British Virgin Islands on one eSIM, with the US, Mexico, Puerto Rico and others: 25 destinations in all. That also suits a trip that starts on the US mainland or in Puerto Rico.
Caribbean plans cover the BVI but not the US Virgin Islands, so they fit a BVI stay that continues to other islands in that zone rather than to St Thomas. For one side only, there are country plans, such as the US Virgin Islands plan.
Telcomia's standard plans are data only, with no local number and no SMS; calls go through apps such as WhatsApp. Each plan's details show the Activation line, the duration, the data and whether you can share the connection.
Before you leave
- Install the eSIM at home on Wi-Fi, and keep it until the trip is over: some eSIMs can be installed only once.
- Make it your mobile data line, with data roaming on for it and off for your home line.
- Check the plan's destination list against every island on your route.
- Find manual network selection in your phone's mobile settings before your first day on the water.
- Download offline maps and charge a power bank before each sailing day.
Consular protection: who to call on land and at sea
- 911 reaches the police, an ambulance and the fire service on both sides.
- In the BVI, 311 is for non-urgent police matters, and 767 reaches Virgin Islands Search and Rescue (VISAR) for emergencies at sea.
- Neither group has embassies: for the US Virgin Islands, Spanish citizens are covered from San Juan, Puerto Rico, and British nationals from Miami, while in the BVI the authorities and the Governor's Office help British nationals. The Telcomia app shows which mission is responsible for you, with address and phone.
- The app keeps key emergency phrases ready to show on screen.
Questions travellers ask about the Virgin Islands
Does one eSIM work in both the US and British Virgin Islands?
Yes, if its plan covers both: the Americas plan includes the US Virgin Islands and the British Virgin Islands. The Caribbean plan covers only the BVI of the two.
Which emergency number is sea rescue in the BVI?
767 reaches Virgin Islands Search and Rescue (VISAR), and 911 also works. From a mobile, either call needs a signal; save both numbers before you sail.
Will I have signal while sailing?
Between the islands, your phone can pick up US or BVI networks and switch between them without warning, so use a plan that covers both. Further from land, do not count on a signal.
Is the US Virgin Islands plan the same as a US plan?
No. Telcomia lists the US Virgin Islands as a destination of its own, with its own plans, so check that a plan bought for the US mainland includes the islands. The Americas plan covers the US, the US Virgin Islands and the BVI on one eSIM.
The short version
The US and British Virgin Islands are separate territories with their own networks, and on the water a phone can switch between them. One Americas eSIM covers both groups; keep your home line's data roaming off, and save 911 and, for sea rescue in the BVI, 767.
Related reads:
When should I activate my U.S. Virgin Islands eSIM?
Each plan shows before you pay when it starts counting. Plans that start on connection start counting the first time they connect to a network in one of the countries they cover: install the eSIM before you leave, keep the line off until you arrive in U.S. Virgin Islands, and you'll have data as soon as you land. Some also work in other countries (each plan lists which): if the line connects earlier, at home or on a layover, it starts counting there.
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