You can go to yahoo developer and do this.
http://developer.yahoo.com/maps/rest/V1/geocode.html 1. Get an application ID (Free and easy) 2. Use the following: http://local.yahooapis.com/MapsService/V1/geocode?appid=YD-9G7bey8_JXxQP 6rxl.fBFGgCdNjoDMACQA--&street=701+First+Ave&city=Sunnyvale&state=CA replacing your application ID & address. 3. The results will have the zip code if valid address/found address Thanks, Mark From: Action Request System discussion list(ARSList) [mailto:arsl...@arslist.org] On Behalf Of Joe DeSouza Sent: Thursday, September 24, 2009 5:48 PM To: arslist@ARSLIST.ORG Subject: WS to query Zip Codes given Address, City, State.. ** Has anyone heard of any free (wishful thinking) and yet reliable (even more wishful thinking) web services for querying a zip code given the Address, City and State information? I probably need this as a one time query while importing site information. I was hoping to create a Filter to fire on MERGE to set the Zip Code field using the Set Fields operation from any such web-service.. I would prefer setting the Zip Code from the Address, City and State information I have rather than setting it from the data file as I have reasons to doubt the quality of the data that I have received as I see several addresses that have two completely different zip codes for the same address.. and they are off by not a single digit or something - way way off.. Probably a result of modifications done through Excel after the use of a bad bad filter.. The list of sites I have is only about 600, which does not really justify me asking for buying a web service for one time use, yet I do not see myself looking up each address and correcting it manually.. I just did a google search for the above but I cannot say I found anything useful. Joe _Platinum Sponsor: rmisoluti...@verizon.net ARSlist: "Where the Answers Are"_ _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org Platinum Sponsor:rmisoluti...@verizon.net ARSlist: "Where the Answers Are"