The dial string is +92 followed by the Pakistani number with the leading 0 dropped. Karachi landlines start +92 21, Lahore +92 42, Islamabad +92 51. Pakistani mobiles are 10 digits starting 3 after the country code. The toll-free 0800 numbers a Pakistani bank or government office publishes for domestic callers will not connect from the UK.

The dial string

To call Pakistan from the UK, dial:

›+92 {city or mobile prefix} {number}, or
›00 92 {city or mobile prefix} {number} from a UK landline.

Drop the leading 0 from the Pakistani number. A Karachi landline printed as (021) 111-222-333 becomes +92 21 111 222 333. A Telenor Pakistan mobile printed as 0345 123 4567 becomes +92 345 123 4567.

Mobile vs landline

Pakistani mobile numbers are 10 digits starting 3. Original network prefixes include Jazz (300/301/302), Telenor (345/346/347), Zong (310-316), and Ufone (330-337). Pakistan has mobile number portability, so the prefix is the original assignment, not proof of the current carrier. This guide does not rank Jazz, Zong, or any other operator for international completion.

Pakistani landlines vary by city. The trunk code is 2 digits for the four largest cities (Karachi 21, Lahore 42, Islamabad 51, Faisalabad 41), 3 digits for tier-2 cities (Peshawar 91, Quetta 81, Multan 61). The subscriber number is 6-8 digits depending on the local exchange.

Pakistan does not bill the receiver for incoming international calls.

What it costs

Four realistic routes for a UK→Pakistan call in 2026:

›UK mobile international add-on. Pakistan is excluded from EE's and Vodafone UK's standard international plans. Per-minute pay-as-you-go rates without an add-on sit at £1.20, £1.80/min to Pakistani mobiles.
›Pre-paid international calling card. Diaspora-targeted cards advertise rates from 3p/min to Pakistan. The advertised rates apply only to landlines in Karachi, Lahore, and Islamabad; mobiles and tier-2 cities can be 5-10x more. Connection fees push the effective short-call rate higher.
›VoIP app-to-phone. Skype's successor (Microsoft Teams Phone) and Viber Out terminate to Pakistani mobiles at around £0.06/min. WhatsApp is not a reliable substitute on this corridor, see below.
›Browser-to-phone via WorldDial. $0.24/min to Pakistani mobiles, $0.21/min to landlines, billed per minute, rounded up.

For diaspora callers making weekly check-in calls to family in Pakistan, the per-minute billed browser route beats both the carrier add-on and most calling cards once the call exceeds 2 minutes. For long calls (>30 min), a pre-paid card with a published landline rate to Karachi/Lahore/Islamabad can be the cheapest option if the recipient is on a landline.

Toll-free numbers from this corridor

Pakistani toll-free numbers start 0800 (or 111 for "Universal Access Numbers" which are not free). Both are domestic only and will not connect from the UK. The Pakistani called party is billed by their local toll-free provider; that billing relationship does not extend internationally.

Major Pakistani banks publish a separate international helpline alongside the 0800 domestic line. HBL's international card-services number is +92 21 111 222 425; UBL publishes +92 21 111 825 888; Meezan Bank +92 21 111 331 331. These are paid lines from your side; the bank does not pay for incoming international calls.

Best calling windows

Pakistan Standard Time is UTC+5. UK time is UTC+0 (winter) or UTC+1 (BST, summer). Pakistan runs 5 hours ahead of UK in winter, 4 hours ahead in summer.

The best window for reaching a human on a Pakistani bank or government helpline is 09:30-11:30 PKT, the first two hours after office open, before the post-prayer queue surge. In UK time that is 04:30-06:30 GMT or 05:30-07:30 BST. Set an alarm.

The windows to avoid: 13:00-14:30 PKT (Zuhr prayer break), 17:00-18:30 PKT (Asr break and end-of-day rush). During Ramadan, official working hours shift to roughly 09:00-14:00 with reduced staff after midday; weekend hours become more limited.

Pitfalls specific to this corridor

›Landline that rings out. If a published landline rings out, check the institution's own contact page for a current number before assuming it is busy. PTCL has been replacing copper with fibre in some areas under its Copper Sunset / Flash Fiber programme. That is not a nationwide, silent 2024 disconnection policy.
›PTA gateway routing variability. The Pakistan Telecommunication Authority licenses Long Distance and International (LDI) operators that terminate inbound international traffic. Calls placed at the same time of day to the same Pakistani mobile can route through different LDIs and produce noticeably different audio quality, latency, and even disconnect behaviour. If a call drops mid-conversation, the second redial typically routes via a different gateway and survives longer.
›Mobile-OTP requirements for bank password resets. Pakistani banks have moved aggressively to 2FA via SMS to a registered Pakistani mobile number. Calling HBL or UBL from the UK to reset a password will work up to the verification step; the agent will then offer to send an OTP to the registered Pakistani mobile. If that SIM is no longer active, the agent cannot complete the reset by phone, you will be directed to a branch visit.
›WhatsApp calling is throttled during politically sensitive periods. Several Pakistani ISPs throttle WhatsApp voice calls at the network layer during protests, election periods, and security events. If you need to reach a phone number that is not on WhatsApp, the throttling matters because your only fallback is the PSTN route.

Quick checklist

›Have the destination number in international format: +92 followed by 10 digits, leading 0 dropped.
›Identify whether the number is a mobile or landline. The original prefix does not prove the current carrier.
›Pick a window that hits Pakistani office hours: aim for 09:30-11:30 PKT (04:30-06:30 UK winter).
›Have any reference number, CNIC last 4 digits, and your registered Pakistani-mobile OTP ready.
›Use a per-minute paid route; the 0800 and 111 numbers will not connect.

Need to call a real phone number?

Open WorldDial, enter the number, and check the live rate before you dial. Pay as you go from your browser. The other person does not need an app.

Open dialer →View rates by country

Pay as you go • No subscription required • Recipient does not need WorldDial

FAQs

What is the international dialing code for Pakistan?

+92. From the UK, dial +92 or 00 92, then the Pakistani number with the leading 0 dropped.

Can I dial Pakistani 0800 toll-free numbers from the UK?

No. Pakistani 0800 toll-free numbers are domestic-only and will not connect from a UK number. Banks and government offices that advertise an 0800 line also publish a separate paid international number, usually a Karachi or Islamabad landline (+92 21 … or +92 51 …).

What's the cheapest way to call Pakistan from the UK?

For calls under 30 minutes, a per-minute billed browser-to-phone service at around $0.21/min beats both the carrier add-on (£1.20, £1.80/min) and most calling cards once you account for connection fees. For long calls to landlines in Karachi, Lahore, or Islamabad, a pre-paid card with a published landline rate can be cheaper.

Why does my call to a Pakistani landline ring out?

The number may be out of service, or the published contact may be stale. Check the institution's website or social-media account for an updated number. PTCL has been replacing copper with fibre in some areas; that does not mean every unanswered landline was cut without notice.

Will WhatsApp work for my Pakistan call?

WhatsApp voice calls are throttled at the network layer by several Pakistani ISPs during politically sensitive periods. Even when available, the recipient must be on WhatsApp, most banks, government offices, and tier-2 institutions in Pakistan are not. For those, only the PSTN route works.

How to call Pakistan from the UK in 2026