Phone Number Generator - Generate International Phone Numbers for 8 Countries
Generate fictional phone numbers for 8 countries: NL, US, UK, DE, BE, FR, ES and IT. Each country uses its correct format, prefixes and area codes. Ideal as test data for form validation, CRM testing and test automation.
Note:All generated data is entirely fictional and not suitable for use as real personal information.
Dutch phone numbers for testing
Dutch phone numbers follow a standardized format managed by the Telephone Numbering Plan of the Authority for Consumers & Markets (ACM). Understanding this format is essential for correctly validating and testing phone number fields in applications.
Mobile numbers
All Dutch mobile numbers start with the area code 06, followed by 8 digits. The full format is 06-XXXXXXXX (10 digits total). In international format this becomes +31 6 XXXXXXXX, where the leading 0 is dropped.
Landline numbers and area codes
Landline phone numbers consist of an area code (2 or 3 digits) followed by a subscriber number. Major cities use 2-digit area codes with 7-digit subscriber numbers, smaller cities use 3-digit area codes with 6-digit subscriber numbers. Common area codes are:
- 020 — Amsterdam
- 010 — Rotterdam
- 070 — The Hague
- 030 — Utrecht
- 040 — Eindhoven
- 050 — Groningen
- 015 — Delft
- 013 — Tilburg
Why not use real numbers?
Using real phone numbers in test environments can lead to unwanted calls or SMS messages to real people, especially when testing notification systems, 2FA flows or bulk communication. Fictional numbers eliminate this risk entirely. Use generated numbers when testing form validation, CRM systems, and APIs that process phone numbers.
Combine fictional phone numbers with a generated name and address for realistic contact details, or generate complete profiles via the dataset generator.