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How to Call United Kingdom from the United States
Country code +44 — Dial 011 44 74XX XXXXXX from a US landline or +44 74XX XXXXXX from a mobile phone.
What to Dial
- 1Dial 011 from a US landline, or + from a mobile (hold the 0 key).
- 2Dial 44, the country code of the United Kingdom.
- 3Dial the number: 10 digits for mobiles and 9 or 10 for landlines, without the leading 0 used for calls inside the United Kingdom.
| Calling a… | Written in United Kingdom | From a US landline | From a cell phone |
|---|---|---|---|
| Mobile | 074XX XXXXXX |
011 44 74XX XXXXXX |
+44 74XX XXXXXX |
| Landline (Birmingham) | 0121 XXX XXXX |
011 44 121 XXX XXXX |
+44 121 XXX XXXX |
X stands for any digit. Mobile numbers start with 071–075 or 077–079. More number types: United Kingdom phone number format.
Mobile or Landline?
The United Kingdom had 122 mobile subscriptions and 34.4 landlines per 100 people in 2024. Landlines are still common, which matters because many US plans charge different rates for landlines and mobiles.
Source: World Bank (ITU).
Calling Tips for United Kingdom
Best Time to Call
To reach someone between 9 AM and 8 PM in London, call between 4:00 AM–3:00 PM EDT (1:00 AM–12:00 PM PDT). The United Kingdom changes its clocks for daylight saving time.
The United Kingdom is on UTC+1, 5 hours ahead of US Eastern Time right now.
Cost Saving Tips
- VoIP services such as Google Voice or Vonage usually charge less per minute than a carrier's standard international rate.
- WiFi calling apps (WhatsApp, Viber, FaceTime) are free when both parties have the app.
- Check your carrier's international plan — many offer add-on packages.