ONS Postcode Lookup Web Service
This web service enables you to absorb Postcode lookups into you app.
Both REST and SOAP services allow you to switch the period used for the data. Currently, the following datasets are available:
http:/sws.substance.net/ons/rest
This service will return a json encoded array will all in the information about the requested postcode. If an incomplete postcode if reqested, a summary of the matches will be returned.
http:/sws.substance.net/ons/rest/getcodename
This method enables to the lookup of various code
http:/sws.substance.net/ons/rest/convertwardto2012
Ward code formats changed in 2012, this method allows you to convert the current format to the pre 2012 format.
http:/sws.substance.net/ons/soap
The following methods are available via the SOAP web service:
Further information about these methods can be found here.