How to Call United Kingdom From the US
To call United Kingdom from the United States, dial 011 + 44 + area code + local number from a US landline, or +44 + area code + local number from a mobile phone. Drop the leading 0 from the local number. Kinvo connects any United Kingdom number from your browser at $0.42/min — no app, no subscription. For the dialing code itself and number-format reference, see the United Kingdom country code page.
The UK uses variable-length area codes: 2-digit for London (020) and other largest cities, 3-digit for most other cities, and 4 or 5-digit for smaller towns. All UK mobile numbers start with 07 domestically, which becomes +44 7 when dialed from abroad. The trunk prefix 0 must always be dropped when dialing the UK internationally.
Dial United Kingdom from the US
011 is the US international exit code. 44 is United Kingdom's country code. On a mobile phone, replace 011 with + (hold the 0 key).
Dialing Quick Reference
How to Dial United Kingdom From the US — Step by Step
Dial 011 + 44 + area code + local number
From a US landline or carrier cell phone, dial 011 44 + local number. On a mobile phone you can replace 011 with +, giving +44 + local number. If the local United Kingdom number starts with a leading 0, drop that 0 when dialing internationally.
Sign up for Kinvo
Create an account at kinvophone.com. Setup takes under a minute — no install required.
Add credits (from $5)
With $5 in credits, you can talk for approximately 11 minutes to United Kingdom. Credits never expire.
Dial and call
Open the Kinvo dialer, type +44 followed by the local number, and click Call. Allow microphone access when prompted. Your call connects in under 3 seconds with HD audio quality.
What it costs
Calls to United Kingdom with Kinvo start at $0.42/min plus a one-time $0.05 connection fee per answered call. No subscription, no minimums.
See the full rate breakdown for United KingdomUnited Kingdom Area Codes — Worked Examples
Here is how to convert a domestic United Kingdom number into the international format Kinvo accepts:
| City | Domestic | Dial from abroad |
|---|---|---|
| London | 020 XXX XXXX | +44 20 XXX XXXX |
| Manchester | 0161 XXX XXXX | +44 161 XXX XXXX |
| Birmingham | 0121 XXX XXXX | +44 121 XXX XXXX |
| Edinburgh | 0131 XXX XXXX | +44 131 XXX XXXX |
| Glasgow | 0141 XXX XXXX | +44 141 XXX XXXX |
| Liverpool | 0151 XXX XXXX | +44 151 XXX XXXX |
Why Americans Call United Kingdom
There are roughly 680,000 UK-born residents and 2.3 million Americans with British ancestry (US Census ACS) — most concentrated in Florida, California, New York, Texas, and New Jersey.
Family & diaspora
British expats and dual citizens in the US call home for family check-ins, NHS appointments, banking, and property matters — usually to landlines in Manchester, Edinburgh, or the Home Counties where older relatives still live.
Business
The UK is the US’s largest source of foreign direct investment and a top trade partner. American firms routinely dial London for financial services, fintech, law, media, and university research partnerships — with Cambridge, Oxford, and Edinburgh also common business lines.
Travel
Americans visit the UK more than any other European country. Calling ahead for hotel confirmations, restaurant reservations in London, theatre bookings in the West End, or a local SIM replacement is routine before and during trips.
Good to know: Business calls follow 9:00–17:30 GMT (17:00 on Fridays). During British Summer Time (late March to late October) the UK is GMT+1, shrinking the time gap with the US East Coast to 4 hours.
Best time to call: 11 AM–2 PM US Eastern = 4 PM–7 PM UK — late afternoon/early evening in the UK, after work but before dinner.
How to Call United Kingdom From iPhone, Android, or a Landline
From an iPhone
Open the Phone app, press and hold 0 until a + appears, then type 44 followed by the local United Kingdom number. Or use Kinvo in Safari — no dialer permissions needed.
From Android
Open your Phone app, long-press 0 to get +, then dial +44 + the number. In Chrome, open kinvophone.com and call directly without touching your carrier plan.
From a US Landline
Landlines don't have a + key, so use the full exit code: 011 44 then the local number. Check with your phone provider that international calling is enabled to avoid blocked calls.
How to Call United Kingdom For Free
If the person you're calling in United Kingdom has a smartphone with internet access, the cheapest way to call them is free: use WhatsApp, FaceTime, Telegram, Signal, or Google Meet. Both sides need the same app, and calls travel over the internet rather than the phone network — no per-minute fees, no country code needed.
For calling any regular United Kingdom landline or mobile number — the kind that requires dialing +44 — there is no truly free option, because someone has to pay the termination fee to connect the call. Kinvo is the lowest-cost option for dialing United Kingdom phone numbers, starting at $0.42/min with no subscription, compared to $1–$3/min at most US carrier rates.
United Kingdom Calling Tips
Drop the leading 0 from the UK number when dialing internationally. For example, a London number 020 7946 0958 becomes +44 20 7946 0958. UK mobile numbers start with 07. Business hours are typically 9 AM to 5:30 PM GMT.
Frequently Asked Questions
How do I dial United Kingdom from the US?
From a US mobile phone, dial +44 followed by the local United Kingdom number (long-press the 0 key to get the + sign). From a US landline, dial 011 44 and then the number. Drop any leading 0 from the local number.
Is +1 the same as 011?
No. +1 is the country code for the United States and Canada. 011 is the US international exit code used before dialing any foreign country code. To call United Kingdom from the US, you use 011 + 44, not +1.
How do I call United Kingdom from an iPhone?
Open the Phone app, press and hold the 0 key until a + appears, then dial +44 followed by the local United Kingdom number. Or open kinvophone.com in Safari and call directly from the browser at $0.42/min.
Do I need to drop the leading 0 when dialing United Kingdom?
Yes — when calling from outside United Kingdom, drop any leading 0 from the local number after entering the country code. The leading 0 is the domestic trunk prefix and is only used for in-country calls.
How can I call United Kingdom for free?
If the recipient has a smartphone with internet, use WhatsApp, FaceTime, Telegram, or Signal — free over data. For calling any regular United Kingdom phone number, Kinvo is the cheapest option from $0.42/min.
Can I dial United Kingdom from my browser without an app?
Yes. Kinvo works entirely in Chrome, Firefox, Safari, or Edge using WebRTC. No download, no SIM swap, no carrier add-on needed — just sign up and dial +44 + the local number.
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