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>