After you transfer your case to Poland, you wait for your case number to change to WRW instead of MOS.

How do you know it happened?

Your MOSxxxxxxx number will stop working when you check your case status at NVC (the CEAC status tracker: ceac.state.gov/CEACStatTracker/Status.aspx).

How do you find your new NVC number?

You have to call NVC or use the Ask NVC form and request your new number.

  • Phone: +1 603 334 0700 or +1 603 334 0888.
  • Ask NVC form: travel.state.gov/content/travel/en/us-visas/visa-information-resources/ask-nvc.html

Please note: the hold time on the phone is about 2 hours, and the Ask NVC form is usually answered within 7 days to a month.