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eSIM for Montserrat

eSIM for Montserrat

Viasimo's Montserrat eSIM starts at $6.99 for 500 MB over 1 day, running on FLOW with 4G LTE where available. Plans last 1 to 180 days, arrive by email in minutes and install from your phone's settings, with no app.

Works everywhere in Montserrat

  • Saint Anthony
  • Saint Georges
  • Saint Peter
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Unlimited data · 3 Days$43.99
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Unlimited data · 3 Days ×1

$43.99

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Dial *#06# on your phone. If you see an EID number, your phone takes an eSIM. Most phones sold since 2019 do.

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Network

Which networks does the Montserrat eSIM use?

Host networks: FLOW

Your eSIM picks one automatically; you do not choose or switch between them.

Data
500 MB – 20 GB or unlimited
Validity
1–180 days
Speed
4G LTE
Hotspot / tethering
Supported on most devices
Activation
Starts when you first connect in your destination
Speed management
Roughly 2-3 GB per day at full speed, sometimes less depending on the local carrier, then reduced
Top-ups
Add more data from your account, before the plan expires
Text messages (SMS)
Data only: use an app for verification codes
Unused validity
180 days before it must be installed
Setting up Buy, scan the QR code we email you, and switch on the travel line when you land. How it works
Choosing a plan

How much data do you need?

The allowances below are our sizing recommendations, not measurements. The plan beside each one is the cheapest option on this page that covers it.

Recommended data allowances matched to the plans sold for this destination
You arePlan forCheapest plan that covers it
LightMaps, messaging and the occasional lookupAbout 1 GB a week$10.991 GB, 7 days
TypicalMaps, social, photos and some browsingAbout 3 to 7 GB a week$39.995 GB, 30 days
HeavyVideo streaming, video calls and uploads10 GB a week or more$72.9910 GB, 30 days
Working or sharingTethering a laptop, calls and cloud sync20 GB a week or more$95.99Unlimited, 7 days

Work it out from your own habits

What a week abroad costs

eSIM, local SIM or roaming?

Charged per day

Your carrier roaming

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A SIM at the airport

$6.99

Viasimo, one bundle

Only the Viasimo figure is a price: it comes from today’s live catalog. The other two rows are directional, not quoted rates.

About this eSIM

One operator serves Montserrat, Cable&Wireless, on 3G and 4G/LTE. There is no 5G here and no second network to fall back on, and being straight about that is more useful than dressing it up: this is a small island with a small population living in its northern third, and the mobile infrastructure is sized accordingly. Where people live, it works. Where they do not, which is most of the island's area, it does not.

Getting online when you land

Getting here is either the short flight from Antigua into the airport at Gerald's or the ferry into Little Bay. Both are quick, and both drop you somewhere with very few services waiting, so arriving already connected saves a lot of standing around.

Install the profile before you leave home while you have a solid wifi connection. Keep it disabled in transit, then switch it on once you have landed or docked and let it attach. There is only one network to find, so this is usually fast. Set the plan as your data line and leave your home number active on the primary SIM for calls, with data roaming turned off there.

If you connect through Antigua with a long layover, remember that a Montserrat plan does not cover Antigua; use the airport wifi there rather than expecting your data to work.

The networks you'll be on

Cable&Wireless is the network, with 3G and 4G/LTE available. On the populated side of the island you should see 4G/LTE and it will handle maps, messaging, calls over the internet and browsing without complaint. Where the signal weakens you will drop to 3G, which is slower but still workable for text-based apps.

There is nothing to configure and no alternative operator to switch to, so manual network selection is not the troubleshooting tool it would be elsewhere. If you have no service, the answer is almost always to move somewhere with a clearer line to the north of the island rather than to change a setting.

Where coverage holds, and where it thins

Solid: the northern zone where everyone lives and works. Brades and the government offices, Little Bay and the port, Salem, Woodlands, Old Towne, Olveston and the roads connecting them, plus the airport area at Gerald's. Along that spine you can expect to be online continuously.

Thin or absent: the Centre Hills, where the forest trails climb steeply and the ridges cut the signal quickly once you leave the road; the western coves reached by track rather than road; and the hike over to Rendezvous Bay, which is the classic Montserrat beach walk and the classic place to have no phone.

The southern part of the island is a restricted zone around the volcano and the buried town of Plymouth. Access is controlled and organised through guides, and you should not plan on your phone working normally there. Treat any viewing trip toward the south as an offline excursion: agree timings and pickups before you set out.

Boat trips along the coast, which is how most people see the volcanic devastation and reach the better beaches, hold a signal near the northern shore and lose it as you move south.

What you'll actually use data for here

Coordination, mainly. Montserrat runs on personal arrangements rather than booking platforms: a taxi driver who is also your guide, a villa owner who meets you with keys, a boat captain who will take you round the coast if the sea is right. All of that happens by phone and message, and having a working data connection means you can settle plans from a beach instead of from your accommodation.

Car hire is common because the island has no comprehensive public transport, and a live map helps on roads that climb and switch back constantly with little signage. Download the island offline first; it is a tiny file.

The volcano observatory publishes updates and the local radio and government feeds carry advisories, which are worth checking during your stay simply because conditions here are monitored actively rather than assumed static. During the March festival week the island is far busier than usual and event details circulate online.

Photo and video uploads will work fine from the populated north; save the big ones for when you are back at your accommodation.

Before you fly

Confirm your handset is unlocked and supports eSIM, and install the plan before departure.

Save your accommodation details, your driver's number and your return ferry or flight times as offline screenshots. On an island with one network and a lot of terrain, the screenshot is the backup that always works.

Bring a power bank for hiking and boat days, and note that the island is quiet in the evenings, so if something goes wrong with your phone there is no shop around the corner to sort it. Set your plan up and confirm it works while you still have the option to fix it.

Unlimited runs at full speed up to a fair-use limit, then continues slower.

Before you buy

Important to know

  • This is a data-only eSIM. It carries no calls or SMS on its own number.
  • Your existing number stays on your primary SIM, so calls and verification texts keep working.
  • Your phone must support eSIM, and some carrier-locked phones cannot install one.
  • Signal varies with location, terrain, congestion and your handset. Dense urban areas are consistently better served than remote ones.
  • The eSIM selects a host network automatically. You cannot pick or switch between them.
  • Unlimited plans run at full speed up to a fair-use limit, then continue at a reduced speed. Read the fair usage policy
Looking for more information?

Frequently asked questions

Does an eSIM work in Montserrat?

Yes. Your Montserrat eSIM connects automatically the moment you arrive, with no roaming fees and nothing to set up at the airport. The host networks it can use are FLOW. Coverage runs on 4G LTE. There is no 5G on our host network in Montserrat yet.

Do I get 5G in Montserrat?

No. FLOW do not yet offer 5G to visitors in Montserrat, so your eSIM connects over 4G LTE or slower. Anyone claiming 5G for this destination is quoting a spec sheet, not the network you will actually get.

Is FLOW the same as Cable & Wireless in Montserrat?

Yes. Cable & Wireless replaced its LIME brand with FLOW in 2015, and FLOW is now part of Liberty Latin America. If your eSIM shows FLOW, you are on the island's Cable & Wireless network. Your eSIM uses it on 4G LTE, which handles maps, messaging and internet calls across the populated north.

Can I visit Plymouth on Montserrat?

Only with permission. Plymouth lies inside Zone V, the area around the Soufrière Hills volcano, which needs authorisation to enter even at the current hazard level 1. Zones A, B, C and F have unrestricted access. Check the Montserrat Volcano Observatory's updates online before you go, and arrange any trip south through an authorised guide.

Why do flights to Montserrat get cancelled?

The UK Foreign Office says short-notice cancellations and schedule changes are common. John A. Osborne Airport's runway is only 593 m long, so services use small aircraft that are sensitive to weather, and ash from the volcano can ground flights when the wind blows north. Keep your eSIM on after landing and your airline's contact saved.

What do the sirens on Montserrat mean?

An island-wide siren system warns of volcanic activity. It is tested every day at midday, so a siren at noon is normal. If the sirens sound at any other time, tune to Radio Montserrat on FM 88.3 or 95.5 and follow the instructions. You can also check the observatory's online updates using mobile data.

How much data do I need for 7 days in Montserrat?

For 7 days in Montserrat, Viasimo sells 1 GB for $10.99 and unlimited data for $95.99. Our sizing recommendation, not a measurement: maps, messaging and the occasional lookup, about 1 GB a week; maps, social, photos and some browsing, about 3 to 7 GB a week. The data calculator on this site works it out from how you actually use your phone.

Installing, keeping your number, topping up and hotspot work the same everywhere: see how it works →

Know before you go

Montserrat: what to know before you land

In Montserrat your eSIM connects to FLOW, the brand Cable & Wireless has traded under since 2015, on 4G LTE. On an island still shaped by the Soufrière Hills volcano, data earns its keep for a few things in particular: tracking short-notice flight changes on the 593-metre runway at Gerald's, checking the volcanic hazard level and following weather alerts that can cut off the Belham Valley.

Emergency
911 or 999
Plugs
ABG 230V
Currency
East Caribbean dollar (XCD)

Main airports

  • MNI John A. Osborne Airport
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Flying into John A. Osborne (MNI) at Gerald's

Montserrat's airport, John A. Osborne (MNI) at Gerald's, has one of the Caribbean's shorter runways at just 593 m, so only small aircraft can use it. FlyMontserrat and BMN Air fly the short hop from Antigua, and Winair has flown twice a week from Sint Maarten since May 2025. From 1997 to 2005, after the old airport was lost to the volcano, the island could only be reached by helicopter, boat or seaplane.

The UK Foreign Office warns that short-notice cancellations and schedule changes are common on flights to Montserrat. Volcanic ash also grounds aircraft when the wind blows it north. Have your airline's contact details and booking reference saved, and keep your eSIM switched on from the moment you land so a rebooking message can reach you.

If you are connecting through Antigua, remember that this plan covers Montserrat only. Use V.C. Bird airport's wifi or separate cover while you wait, and switch your data line over once you arrive at Gerald's.

Soufrière Hills hazard levels and Zone V

The Soufrière Hills volcano has been active since 1995. It has had no major activity since February 2010 and is described as being in a prolonged pause. The island manages the risk with a Hazard Level System on a scale of 0 to 5, which the Foreign Office listed at level 1. At that level, zones A, B, C and F have unrestricted access. Zone V, which covers the area around the volcano and the former capital, Plymouth, can only be entered with permission from the authorities. Maritime exclusion zones also surround parts of the coast. Boats need permission to enter them, and the Port Authority at Little Bay holds the maps and GPS coordinates.

Even the inhabited 40% or so of the island can get ash falls and volcanic gas when the wind blows from the south. An island-wide siren network is tested every day at midday. If the sirens sound at any other time, tune to Radio Montserrat on FM 88.3 or 95.5.

The Montserrat Volcano Observatory posts updates online. Check them on your phone before any trip south, and before booking a boat tour along the exclusion-zone coast.

Belham Valley floods and Montserrat's emergency numbers

The Caribbean hurricane season officially runs from 1 June to 30 November, but stormy weather can arrive outside it. The Foreign Office notes that landslides and local flooding are common in Montserrat. The Belham Valley is especially prone, and communities on the Isles Bay side can be cut off for a day or so after heavy rain. If you are staying around Isles Bay or Old Towne, check the weather forecast and local updates on your phone before you set out. Have a plan for a day when the valley road is closed.

For storms, follow the US National Hurricane Center and the World Meteorological Organization, as the Foreign Office recommends. Charge a power bank whenever a warning is issued, because power and mobile service can both be interrupted after a storm.

The emergency number is 911 or 999 for police, fire and ambulance. The Royal Montserrat Police Service's main line is +1 664 491 2555. The eSIM is data-only, so make calls from your home SIM. Save these numbers before you go walking in the Centre Hills.

Researched October 2026 · 5 sources
Short stay

Three days on Montserrat: the volcano, the Centre Hills and Little Bay

A three-day visit to the inhabited north of Montserrat, usually reached on a short flight from Antigua: the volcano observatory and viewpoints over the buried capital, a forest walk in the Centre Hills, and the island's beaches and music history.

Length
3 days

When to go December to April is the driest and most reliable time for flights and hiking; June to November is hurricane season, and heavy rain can close the Belham Valley road for a day or so.

  1. Day 1 Northern Montserrat (Olde Towne or Salem area)

    The volcano observatory and Jack Boy Hill

    Flights from Antigua to John A. Osborne airport (MNI) take about 15–20 minutes; cancellations at short notice are common.

    From the airport at Gerald's, drive down the east side to the Jack Boy Hill viewing point, which looks across the ash-covered remains of the old W.H. Bramble airport and the slopes of the Soufrière Hills. In the afternoon, visit the Montserrat Volcano Observatory near Salem, open Monday to Thursday, where an observation deck faces the volcano and a documentary on the 1995 to 2010 eruptions plays through the day. Watch the sunset from Garibaldi Hill over the Belham Valley.

    Signal FLOW 4G covers the inhabited north well, including the airport, Jack Boy Hill and the observatory; you will need it if a flight change message arrives.

  2. Day 2 Northern Montserrat (Olde Towne or Salem area)

    The Centre Hills and the Montserrat oriole

    The Centre Hills trailheads are a 10–20 minute drive from the west-coast villages.

    Walk one of the marked trails in the Centre Hills, such as the Oriole Walkway, a loop through forest where you may hear or see the Montserrat oriole, the national bird found nowhere else. A guide from the Montserrat National Trust helps with birds and route-finding. In the afternoon, visit the National Trust's centre and botanical garden at Olveston, then drive past the ruins of AIR Studios, where George Martin recorded many famous acts before Hurricane Hugo in 1989.

    Signal Coverage is mostly good near the trailheads but becomes patchy deep in the forest and in the steep ghauts; download the trail map first.

  3. Day 3 Northern Montserrat (Olde Towne or Salem area)

    Little Bay, Rendezvous Bay and a boat along the coast

    Little Bay is about 15 minutes from Gerald's airport by road; the walk to Rendezvous Bay takes about 45 minutes each way over a steep path.

    Spend the morning in Little Bay at the Montserrat Cultural Centre, with its wall of musicians' handprints, and the small national museum. Hike over the headland from Little Bay to Rendezvous Bay, the island's only white-sand beach, or take a boat there, and snorkel in calm water. If time allows, join a two-hour boat tour from Little Bay down the west coast to see Plymouth from the sea; boats cannot land inside Zone V.

    Signal Little Bay has reliable 4G, but signal is weak at Rendezvous Bay, behind the headland; on the coast boat trip, expect it to come and go.

Staying connected on this route

  1. Your plan covers Montserrat only, so use separate cover or airport wifi while you connect through Antigua.
  2. Check the Montserrat Volcano Observatory's updates on your phone before any trip south; Zone V needs permission to enter.
  3. Save your flight booking reference and airline contacts offline, as short-notice schedule changes are common.
  4. A siren at midday is the daily test; at any other time, check Radio Montserrat or official updates.
Itinerary sources · 4
Where this comes from

Information and verification

Each block below says what was checked and when. Anything we cannot date, we do not claim.

Prices and plans
Every price and allowance on this page is read from the live catalog, not typed in.
Host networks
The operator list comes from the network partner that carries this eSIM.
Transparent pricing

Montserrat eSIM prices

Montserrat eSIM prices: 1 day
DataPricePer day
500 MB$6.99$6.99/day
1 GB$9.00$9.00/day
2 GB$16.00$16.00/day
Montserrat eSIM prices: 3 days
DataPricePer day
Unlimited$43.99$14.66/day
Montserrat eSIM prices: 5 days
DataPricePer day
Unlimited$69.99$14.00/day
Montserrat eSIM prices: 7 days
DataPricePer day
1 GB$10.99$1.57/day
Unlimited$95.99$13.71/day
Montserrat eSIM prices: 10 days
DataPricePer day
Unlimited$139.99$14.00/day
Montserrat eSIM prices: 15 days
DataPricePer day
3 GB$25.00$1.67/day
Unlimited$199.99$13.33/day
Montserrat eSIM prices: 30 days
DataPricePer day
3 GBBest value$26.00$0.87/day
5 GB$39.99$1.33/day
10 GB$72.99$2.43/day
20 GB$144.99$4.83/day
Unlimited$364.99$12.17/day
Montserrat eSIM prices: 60 days
DataPricePer day
Unlimited$729.99$12.17/day
Montserrat eSIM prices: 90 days
DataPricePer day
Unlimited$1,089.99$12.11/day
Montserrat eSIM prices: 180 days
DataPricePer day
Unlimited$2,174.99$12.08/day

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