How to Dial a UK Mobile from the US in 2026
Web Development Specialist
UK mobile numbers are often written with a leading 0, such as 07123 456789. From the United States, that domestic zero is removed and the UK country code +44 is added.
The clean format is +44 7 followed by the rest of the mobile number.
Convert 07 to +44 7
If the UK mobile number is 07123 456789, dial +44 7123 456789 from a mobile phone or 011 44 7123 456789 from a US landline.
Do not dial +44 07123. The 0 is only for domestic UK dialing.
Use plus on mobile phones
Holding 0 on many mobile keypads inserts the plus sign. The phone and network then handle the international access prefix.
This is useful if you travel, because +44 7 works from more places than a US-only 011 format.
Check your international rate
Some US plans charge different rates for UK mobile numbers than for UK landlines. Before a long call, check your carrier's current UK mobile rate or use an internet calling option.
To call a UK mobile from the US in 2026, remove the leading 0 and dial +44 7 followed by the remaining digits.