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An automated recorded message system can answer many of these inquiries 24 hours a day, seven days a week (603 334-0700). Operators are available to respond to more difficult inquiries from 7:30 AM to 12:30 AM (EST) Monday through Friday. Status of case information and access to an operator can only be provided by entering your NVC case number or CIS receipt number on a touch-tone telephone. Case inquiries can also be made via email at NVCINQUIRY@state.gov. NVC only has information on petitions it has received.
http://travel.state.gov/visa/immigrants/ty...types_1309.htmlEmail them with case number and date of birth of both petitioner and beneficiary, they reply in about 48 hours, or call them and get a live operator, the automated system there won't have status of K-1 visas.