A required part of the DS-160 is contact information of someone in the US:
The required fields are:
- Organization name
- US Street Address
- Phone Number
- Email address
I have seen it happen that the sole contact information for some conferences is an email address, or sometimes just a "contact us" form on a website (for example, many conferences organized via Eventbrite). No address, no phone number. I am planning on attending such a conference, but haven't made any travel plans yet (no flight or hotel bookings).
I can make a stab at the city and state based on the location of the event, but what do I do about the street address and phone number? Can I abuse the venue's address and phone number? Should I ask friends in the US for their contact information (though there might be no one who lives near where I plan to go)?
My previous visa application went through a 221(g) letter and administrative processing to end up with a 1-year-validity visa that expired recently. I'm applying for a new one (since the renewal process states that those with "clearance received" on their previous visa have to do so).