Validate a phone number

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Validates a UK telephone number, returning the provider; note that this service does not call or 'ping' the number.

Check a phone number against the official list of valid telephone number ranges.

Help your visitors avoid typing errors when entering their phone number. Once a number is entered it can be checked against the official list of valid telephone number ranges and invalid numbers can be flagged up.

Ensure your visitors are not entering false information on your website. Some visitors may attempt to provide you with an incorrect phone number in order to conceal their identity. By using our phone number validation service, invalid numbers can be immediately identified, allowing you to request the correct information.

Mandatory Parameters

Name Description
api_key or javascript_key Use your API key if invoking server-side. If invoking from the browser via JavaScript, generate a JavaScript key using the javascript_key method.
telephone_number Enter a UK telephone number; mobile numbers are permitted.

Optional Parameters

Name Description
client You can optionally include an identifier for your final client or user. This is logged in your usage log and you will be able to view your usage statistics by client.
output Set to json for a JSON response; the default response is XML. Not applicable to the SOAP API.
callback When using JSON, specify a JSONP wrapper in which the JSON response is to be wrapped.

Returned Values

The XML response is contained within a <validate_telephone_res> element.

Name Description
status Returns ok if the operation has succeeded, or error if an error has occurred; Returns the error_code for error details.
error_code Returns the error code when the status is error. See below for error codes.
t2a_version_number The current API version number.
credit_used The number of credits used in order to execute the request.
mode Returns normal or test when executed in the free test mode.
provider The name of the telephony provider.
telephone_number The number, formatted.

Error Codes

See the common error codes. There are no errors which are specific to this method.

Free Test Mode

When operating in the free test mode errors are returned if mandatory parameters are missing, or it returns a dummy data response, in an identical format to a real response.

Note that the mode is returned as test when the method is operating in the free test mode.

Example XML Response

<?xml version="1.0"?>
  <telephone_number>(01904) 217765</telephone_number>
  <provider>Affiniti Integrated Solutions Ltd</provider> 

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