International telephone validation in Regal Forms
Updated September 28, 2026
International telephone validation in Regal Forms recognises the country calling code as a visitor types. The field displays the matching country flag and gives a country-specific message when a number is incomplete or invalid.
Use international telephone validation#
- Open the form in the Form Builder.
- Select the Telephone field.
- Choose Any international number under Validation country.
- Save the form and test it using a number beginning with
+and its country calling code.
What visitors see#
Regal Forms detects supported global country calling codes, shows the corresponding flag and formats a completed valid number. United States and Canadian numbers use their familiar local formatting after the country code. The field prevents numbers that are longer than the recognised country allows. For example, a Spanish number uses +34 followed by nine national digits.
If a number is rejected#
- Start with
+and the full country calling code. - Enter the complete number without an international access prefix such as
00. - Check the number is the correct length for the detected country.
Telephone validation checks number structure, not whether a telephone line is currently active.