A phone card for international calls is prepaid credit you use by ringing a UK access number, keying in a PIN, then dialling the overseas number. You can still buy them in UK corner shops, newsagents and online. The per-minute rate can be low, but what you actually pay depends on three things printed in small type: the fees, the billing rounding and the cost of the access number itself.

Below: how the cards work, where to buy them, the catches to check before you pay, and what the same call costs without a card.

How a UK international calling card works

Every card, physical or online, follows the same basic sequence:

Dial the access number printed on the card or in your confirmation email. This is a UK number, often an 0800 freephone, an 020 or 03 number, or an 084, 087 or 09 number.
Enter your PIN when the recording asks for it. Some cards ask for a language choice first.
Dial the overseas number. Most UK cards want 00, then the country code, then the number without its leading 0, then #. Your card's instructions are the final word.
Talk. The card's system connects the international leg of the call and deducts credit.

Example: to call a Polish mobile (nine digits, written locally as 5XX XXX XXX) you dial the access number, your PIN, then 00 48 5XX XXX XXX #.

Many cards also offer PINless dialling: you register your mobile or landline number with the card company online, and the system recognises your number so you skip the PIN. That only works from the number you registered.

Physical cards, online PINs and access-number services

Type	Where you get it	How you use it	Good for
Physical scratch card	Corner shops, newsagents, some supermarkets	Scratch off the PIN, dial the access number	Cash buyers, people without a bank card
Online PIN (e-card)	Card company websites and reseller sites	PIN arrives by email or text in minutes	Buying at midnight, topping up abroad
PINless or access-number service	Provider website or app	Register your number once, then dial their access number	Regular callers who want fewer steps

Shop cards are usually branded by destination. A card heavily advertised for Pakistan or Nigeria often has its best rate to that country and worse rates elsewhere, so a card that is cheap for one relative can be a poor buy for another.

The catches: what to check before you buy

Fees vary by card and change often, so these are common patterns, not any one brand's terms. Here is what to look for.

Catch	What it looks like	What to check on the card or website
Connection fee	A fixed charge every time a call connects, even a 20-second one	Look for "connection fee", "per call charge" or "setup fee"
Maintenance or weekly fee	Credit slowly disappears while the card sits unused	Look for "maintenance fee", "service fee" or "weekly charge"
Rounding into blocks	A 4-minute call billed as 6 because the card charges in 3-minute blocks	Look for "billing increment", "rounded to" or "per 3 minutes"
Expiry after first use	The card stops working a set number of days after your first call	Look for "expires X days after first use"
Different mobile rates	The headline rate is for landlines; mobiles cost much more	Check the rate table for "mobile" next to your country
Payphone or mobile surcharge	Extra charge when dialling the access number from a payphone or mobile	Look for "payphone surcharge" or access-number charges
Headline minutes	"Up to 500 minutes" assumes the cheapest destination and longest call	Divide the card value by the per-minute rate to your country

A simple test: if a card does not publish its fees and rounding rule clearly, assume they are there. A card that genuinely has none usually says so up front.

Worked example: how the fees add up

Take an imaginary £5 card that advertises 2p a minute to India, charges 10p to connect each call, bills in 3-minute blocks and uses an 087 access number. You make four calls of 4 minutes each (16 minutes of talking).

Cost item	Calculation	Cost
Headline price	16 minutes at 2p	32p
Rounding	Each 4-minute call billed as 6 minutes, so 24 minutes at 2p	48p
Connection fees	4 calls at 10p	40p
087 service charge (if it is 13p a minute)	16 minutes at 13p, charged by your phone company	£2.08
Total	88p of card credit, plus £2.08 on your phone bill, plus your provider's access charge	£2.96 or more

The advertised rate was 32p for those calls. The real cost is nine times that, and most of it never appears on the card. That is why the access number matters as much as the card rate.

Access numbers: 0800, 03, 084, 087 and 09

The access number you dial first is part of the cost. Ofcom sets the rules, and GOV.UK's call charges page summarises them:

0800 and 0808 are free to call from UK mobiles and landlines. A freephone access number is the cheapest option.
01, 02 and 03 numbers cost the same as a normal UK call. Most mobile and landline packages include them in your minutes, but check yours.
084, 087 and 09 numbers carry two charges: an access charge set by your own phone company, plus a service charge set by whoever runs the number. GOV.UK lists up to 7p a minute for 0843, 0844 and 0845, up to 13p a minute for 0870 to 0873, and up to £3.60 a minute for 09 premium numbers, each plus your provider's access charge.

That last point catches people out. A card advertising 1p a minute to India is not 1p a minute if you reach it through an 087 number. The access charge comes on top, and calls to these numbers are not part of your normal inclusive minutes. Look on the card or website for wording like "calls cost Xp per minute plus your phone company's access charge", and pick a card with an 0800 or 03 access number if you can. Ofcom's guide to call costs has the full detail.

What the same call costs without a card

For comparison, here is a 10-minute call from the UK to six popular destinations. The EE column is EE's standard pay-monthly rate with no add-on, as published on EE's country pages (as of September 2026, see the EE India page for an example). BoraPhone figures are at the time of writing (October 2026) and billed in US dollars; the dialer shows the live rate before each call.

Destination	EE pay monthly, no add-on (10 min)	BoraPhone landline (10 min)	BoraPhone mobile (10 min)
India	£46.40	$1.11	$1.11
Pakistan	£46.40	$3.50	$4.00
Poland	£2.50	$0.70	$1.60
USA	£46.40	from about $0.40 (from $0.04/min)	rate shown in the dialer
Nigeria	£46.40	$5.10	$5.20
Ireland	£2.50	$1.11	$2.10

What this tells you:

Do not call abroad on a UK mobile without checking your plan. Standard out-of-bundle rates are where the shocking bills come from.
To India, Poland, the USA and Ireland, a few cents a minute is normal now. A card that costs more than that once fees, rounding and the access number are counted is not a bargain.
Pakistan and Nigeria are expensive to call by any route. If you ring family there every week, a card with a good rate to that one country, or a mobile add-on such as EE's, can work out cheaper than BoraPhone. Our guide to the best SIM for international calls in the UK covers the add-on route, and EE international calls goes through EE's options.

A card-free alternative

If you want to call abroad without PINs or access numbers, BoraPhone runs in a web browser on a laptop, tablet or phone. You type the number, see the per-minute rate, and call real landlines and mobiles in 180+ countries. There is no app, no SIM, no subscription and no connection fee. You top up from $5, calls are billed per minute (rounded up to the next full minute), your first call is free, and failed calls are refunded. It suits occasional callers, calls to landlines, and anyone who wants to see the price before they dial. India is about US$0.11 a minute at the time of writing; the India rates page shows the live price.

If you mainly call from home, our guide to BT landline international calls covers what BT charges.

Frequently asked questions

Do they still sell international calling cards in the UK?

Yes. Physical cards are still sold in many corner shops, newsagents and convenience stores, especially in areas with large international communities. Online PINs and PINless services are now more common, and you can buy them any time with a debit card.

How do I buy a calling card online?

Choose a card company, check its rate to your country for landlines and mobiles, and read the fees and rounding rules. After payment, the PIN and access numbers usually arrive by email or text within minutes. Save the access number in your phone and, if offered, register your number for PINless dialling.

Do I get charged for international calls on a phone card?

Yes, in two ways. The card deducts credit for the international part of the call, and your own phone company may charge for the access number. Freephone 0800 and 0808 access numbers are free, 01, 02 and 03 numbers cost the same as a normal UK call, and 084, 087 and 09 numbers cost extra on top of your plan.

Are calling cards cheaper than using my mobile?

Usually, if you are paying your mobile network's standard international rate with no add-on. They are often not cheaper than an international add-on, a SIM with international minutes, or a pay-as-you-go internet calling service, once connection fees and minute rounding are counted.

Why did my calling card run out so fast?

The usual reasons are a connection fee on every call, billing in 3-minute or longer blocks, higher rates to mobiles than to landlines, or a maintenance fee that deducts credit over time. Check the card's terms for each of these, and test with a short call before you rely on it.

Phone Card for International Calls: A UK Buyer's Guide