Free Singapore phone number validator

Check any Singapore number (+65): valid or not, mobile or landline, original carrier, and the correct international format.

How Singapore numbers are written

Country code +65. Locally: 8123 4567. Internationally: +65 8123 4567.

Validate Singapore numbers in bulk or by API

Clean a CSV of up to 50,000 numbers, or call the API from your app or AI agent with "default_country": "SG". 250 free lookups.

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