You can request your preferred user name for the OS MasterMap data selector using the field provided. This MUST consist of seven numerals or lower-case letters, which we will prefix with an 'x' to form your eight-character user name. The user name will be confirmed to you by email once your account is created. Return to 'Preferred user name'.
To complete the registration process, please ensure your IT security policy is amended to ensure emails from digitalsalesenquiries@ordnancesurvey.co.uk are not blocked or treated as SPAM. Return to 'Email address'.