Ref:http://vincenthomedev.wordpress.com/2008/03/17/topxml-how-can-wcf-support-multiple-iis-binding-specified-per-site-in-wcf/

Solution in .Net Fx3.5: BaseAddressPrefixFilters

<system.serviceModel>

<serviceHostingEnvironment>

<baseAddressPrefixFilters>

        <add prefix=”http://shipping.myorg.com”/>

</baseAddressPrefixFilters>

</serviceHostingEnvironment>

</system.serviceModel>