How to Call UK 0344 and 0345 Numbers From Abroad (British Airways, NatWest, Barclays, O2)
Dial +44 and drop the 0: 0344 and 0345 lines connect from abroad, but the "local rate" stops at the UK border and the holds are long. What 250 real calls cost, the verified international lines for BA, NatWest, Barclays, Co-op Bank and O2, and when to call.
Dial +44, then the 0344 or 0345 number without its first 0. It connects from most countries. The catch is the price and the hold time, not the routing.
- The “local rate” on the company's website is a UK rule. From abroad you pay your carrier's rate for a UK non-geographic number, often $1 to $3 a minute on a roaming mobile.
- Banks and British Airways publish a separate +44 line for callers abroad. It is usually a cheaper geographic number and it is never blocked. The table below has them.
- Budget for the wait. Across 250 calls our customers made to UK 03 numbers in the last year, the average call was nine and a half minutes and the longest British Airways call was 70 minutes.
What 0344 and 0345 numbers are, and why companies use them
03 numbers are UK-wide numbers that are not tied to a town. Ofcom's rule is that a call to any 03 number costs no more than a call to an 01 or 02 landline, counts towards inclusive minutes, and earns the company nothing: no service charge, no revenue share. The 0344 and 0345 ranges exist so that companies that used to run 0844 and 0845 numbers could switch by changing one digit. That is why airlines, banks and mobile networks are so often on 0344 and 0345, while government bodies tend to sit on 0300.
Every part of that promise stops at the UK border. Ofcom regulates UK operators. Your carrier in Manila or Johannesburg simply sees an international call to +44 3, and prices it however its UK tariff says, which for non-geographic numbers is frequently higher than for an ordinary landline. Some prepaid SIMs and calling apps do not route +44 3 at all. The number still works from abroad; the small print does not.
What 250 real calls to UK 03 numbers looked like
We pulled every answered call our customers made to a +44 3 number in the twelve months to mid-September 2026. Four things stood out.
- Who calls: 89 people from more than 20 countries. The Philippines, South Africa, Brazil, Australia, the US, Spain, Italy, Singapore, India, Chile and Indonesia all appear, plus Britons abroad on a foreign SIM.
- How long: the median call was under three minutes, which is what a quick balance check or a rebooking confirmation looks like. The average was nine and a half, dragged up by the long ones: 44 calls ran over twenty minutes, mostly to HMRC, the banks and the airline, and most of that time was hold music.
- The British Airways cluster: six different people called 0344 493 0787 between February and August. The three longest calls, on 24 and 28 August, lasted 62, 63 and 70 minutes. At our 6.4 cents a minute those cost $3.75, $3.75 and $4.22. On a roaming plan at $1 to $3 a minute the same three calls would have been $60 to $210 each.
- What failed: 86 attempts never connected, and 74 of those failed on the caller's side before the call ever reached the UK: the browser could not set the call up, which almost always means a weak Wi-Fi link or a blocked microphone. Only a handful reached a closed line. Check your connection before you blame the number.
The numbers to dial from abroad
These are the 0344 and 0345 lines our customers actually called, with the international form and, where the company publishes one, the better line for calls from outside the UK. Hours are UK time. Verified on each company's own site in September 2026, except the British Airways overseas line, which is quoted from BA's contact page as reported by travel sites because ba.com blocks automated checks.
| Company | UK number | Dial from abroad | Better line from abroad | Hours |
|---|---|---|---|---|
British Airways Bookings, changes, customer service (24/7) Seen in our logs: 6 callers, 10 calls, average 25 min, longest 70 min | 0344 493 0787 | +44 344 493 0787 | BA lists +44 203 250 0145 on its contact page for phones registered outside the UK | 24 hours |
British Airways Club (Executive Club) Avios, tier, account queries Seen in our logs: 2 callers, one 26-minute call | 0344 493 0747 | +44 344 493 0747 | Same overseas line as above | Daytime UK; check the Club contact page |
NatWest General enquiries and fraud (personal current accounts) Seen in our logs: 2 callers, 8 calls, longest 33 min, from the UK and Indonesia | 0345 788 8444 | +44 3457 888 444 | Lost or stolen cards from abroad: +44 1268 500 813 | Fraud line 24/7 |
Barclays Personal and Premier customers, fraud Seen in our logs: 2 callers, 4 calls, longest 21 min, from Brazil and the US | 03457 345 345 | +44 2476 842 099 | This is the line Barclays itself gives for calls from abroad | Mon to Fri 8am to 8pm UK |
Co-operative Bank Customer service Seen in our logs: 2 callers, 9 calls, longest 34 min, from Chile | 0345 721 2212 | +44 345 721 2212 | No separate geographic line published | Daytime UK |
O2 Pay Monthly and Pay As You Go customer service Seen in our logs: 2 callers, 4 calls, from Spain and the UK | 0344 809 0202 | +44 7860 980 202 | O2 says the +44 7860 line is free from an O2 phone abroad; from anything else it is a UK mobile call | Mon to Fri 8am to 9pm, Sat 8am to 8pm, Sun 8am to 6pm UK |
Government 0300 lines (HMRC, DVLA, UKVI, DWP) are a separate list with their own international numbers: how to call UK 0300 numbers from abroad.
What the call costs from abroad
The same 30-minute call to a bank's 0345 line, three ways:
- Roaming mobile: typically $1 to $3 a minute to a UK number, so $30 to $90. Inclusive-roaming bundles usually cover calls within the country you are visiting, not calls back to the UK, which is where most of the bill shocks come from.
- Browser or app dialer, 03 number: UK non-geographic numbers are about $0.064 a minute on BubblyPhone, so about $1.90 for the half hour. That is the rate all 250 calls above were billed at.
- Browser or app dialer, the company's +44 geographic line: about $0.02 a minute, so about $0.60. Barclays' +44 2476 line and NatWest's +44 1268 lost-card line are geographic; NatWest's +44 3457 line is the same 03 number in international form and costs the 03 rate.
Free calling apps are the worst tool for this job. Most cap a call at a few minutes, and a cap that lands at minute four of a forty-minute hold sends you back to the end of the queue. See what free-call services actually allow.
Why the call drops, fails, or never rings
- You kept the 0. +44 0344 is not a number. Drop the 0 after +44.
- Your carrier does not route 03. Some foreign prepaid SIMs and VoIP apps refuse UK non-geographic ranges outright. Use the company's +44 geographic line, or a dialer that lists UK 03 numbers at a stated rate.
- No caller ID. Banks and airlines run fraud filters, and calls that arrive with no or a withheld number are more likely to be dropped or routed to a longer queue. Call from a service that presents a real, verified caller ID.
- The keypad menu ignores you. “Press 2 for existing bookings” needs working touch tones. Some apps send them badly over poor Wi-Fi. Move closer to the router, or use the dialer's on-screen keypad rather than the phone's own.
- It is the middle of the night in the UK. The Executive Club and most bank lines are daytime only. The table above and the time-zone list below tell you when the queue is open.
When to call: UK hours from your time zone
British Airways' main line and NatWest's fraud line run 24 hours. Most other lines open Monday to Friday, roughly 8am to 8pm UK time, and close on UK bank holidays. Here is when 9am to 7pm UK falls where you are (UK summer time):
| Where you are | 9am to 7pm UK is |
|---|---|
| Spain, France, Germany | 9am to 7pm |
| South Africa | 9am to 7pm |
| UAE (Dubai, Abu Dhabi) | 11am to 9pm |
| India | 12:30pm to 10:30pm |
| Philippines, Singapore | 3pm to 1am |
| Sydney, Melbourne | 5pm to 3am |
| Brazil (São Paulo) | 4am to 2pm |
| New York, Toronto | 3am to 1pm |
| Los Angeles, Vancouver | 12am to 10am |
Queues are shortest in the first hour after opening and on Tuesday to Thursday. In our logs the three hour-long BA calls all started between noon and 3pm UK on weekdays in late August, which is peak rebooking time.
Before you call: a 60-second checklist
- Have the reference ready: booking reference and passport for BA; account number, sort code and the card in your hand for a bank; the phone number on the account for O2.
- Charge the phone and pick the Wi-Fi: a 40-minute hold on a hotel connection is fine; on a café hotspot it is a coin toss.
- Note the time you dialled and who you spoke to. If a rebooking or refund goes wrong, the timestamp and the agent's first name are what the complaint runs on.
- Ask for a reference before you hang up. Case, complaint or fraud reference. Airlines and banks both issue one, but only when asked.
- Record it if you can. BubblyPhone can transcribe the call for a cent a minute, so “the agent said the refund would take five days” is written down.
Frequently Asked Questions
Stuck abroad and need a UK helpline?
Call any UK 0344, 0345 or 0300 number from your browser over Wi-Fi: about 6 cents a minute, no roaming, no SIM, a real caller ID, and no cap that cuts you off mid-hold. Your first minute is free.
Related guides
- UK 0300 numbers from abroad: DVLA, UKVI, HMRC, DWP and the rest of government.
- Calling HMRC from abroad and the UK Pension Centre.
- Calling DHL from abroad: the same problem with a parcel instead of a flight.
- How to call the UK from the US: dialling, rates and timing for any UK number.