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Recent Regulations and Guidelines

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Look Up N-Numbers

N-number format

An N-number can be in any of these formats

  • One to five digits (N12345)
  • One to four digits followed by one letter (N1234Z)
  • One to three digits followed by two letters (N123AZ)

N-numbers do not have

  • A zero (0) as the first number
  • The letters "I" or "O"

Drones/​Unmanned Aircraft Systems (UAS)

Check Airport Status and Delays

Browse Delays

  • SFO

    WEATHER / LOW VISIBILITY

    Average delay 1 hour and 18 minutes

Browse Delays

  • PGSN

    TYPHOON/ EXC MIL RELIEF 6AM-6PM LCL

    Reopens Nov 25 at 05:30 UTC.

Browse Delays

  • MEM

    WEATHER / LOW CEILINGS

    Ending 11:30 pm CDT.

  • SFO

    WEATHER / LOW VISIBILITY

    Ending 10:15 pm PDT.

Browse Delays

There are no arrival/departure delays at this time.

View all flight delay information

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This page was originally published at: https://www.faa.gov/