Microsoft Dynamics CRM oData concatenation

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Microsoft

CRM

OData

http://crmDomain.com:5555/myCompany/xrmservices/2011/OrganizationData.svc/AccountSet?$select=AccountId&$filter=concat(Address1_Line1, Address1_Line2) eq '123 Main StSte D' and Address1_City eq 'Omaha' and Address1_StateOrProvince eq 'NE'

In Microsoft Dynamics CRM 2011 I'm attempting to do duplicate detection real time. In some instances addresses have been entered with Street address in Street 1 and Unit # in Street 2 and in other instances it is all on street 1. I want to be able to do a lookup on a concatenated Street 1 and Street 2 so that I can get by with only hitting the service once. Does the iOrganization service support concatenation?