Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB1939

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N814LG · CESSNA 525A Citation CJ2 · operated by 814 LIMA GOLF LLC

Hex
AB1939
Octal
52614471
Decimal
11,213,113
Country
US
Tail
N814LG
Type
C25A
No current signal · last broadcast 6d ago
Flights observed
53
Distinct callsigns
1
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S AB1939.

Country allocation

The ICAO 24-bit address AB1939 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 1 distinct

Callsign Airline Flights Last seen
N814LG - 53 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 N814LG - Jul 12, 04:35 UTCJul 12, 05:05 UTC30m
2026-07-11 N814LG - Jul 11, 18:45 UTCJul 11, 19:25 UTC40m
2026-07-08 N814LG - Jul 8, 19:05 UTCJul 8, 19:40 UTC35m
2026-07-08 N814LG - Jul 8, 17:20 UTCJul 8, 18:15 UTC55m
2026-07-08 N814LG - Jul 8, 12:35 UTCJul 8, 13:25 UTC50m
2026-06-21 N814LG - Jun 21, 01:49 UTCJun 21, 03:19 UTC1h 30m
2026-06-20 N814LG - Jun 20, 01:19 UTCJun 20, 02:14 UTC55m
2026-06-19 N814LG - Jun 19, 22:19 UTCJun 19, 23:04 UTC45m
2026-06-19 N814LG - Jun 19, 20:04 UTCJun 19, 21:39 UTC1h 35m
2026-06-19 N814LG - Jun 19, 19:09 UTCJun 19, 19:19 UTC10m
2026-06-19 N814LG - Jun 19, 16:09 UTCJun 19, 16:19 UTC10m
2026-06-19 N814LG - Jun 19, 15:04 UTCJun 19, 15:29 UTC25m
2026-06-18 N814LG - Jun 18, 21:55 UTCJun 18, 22:30 UTC35m
2026-06-18 N814LG - Jun 18, 19:25 UTCJun 18, 19:45 UTC20m
2026-06-18 N814LG - Jun 18, 14:35 UTCJun 18, 16:35 UTC2h 0m
2026-06-18 N814LG - Jun 18, 12:35 UTCJun 18, 14:01 UTC1h 25m
2026-06-16 N814LG - Jun 16, 19:55 UTCJun 16, 20:10 UTC15m
2026-06-16 N814LG - Jun 16, 17:00 UTCJun 16, 17:15 UTC15m
2026-06-14 N814LG IAD → XNA Jun 14, 20:30 UTCJun 14, 23:35 UTC3h 4m
2026-06-13 N814LG - Jun 13, 12:15 UTCJun 13, 14:50 UTC2h 35m
2026-06-12 N814LG - Jun 12, 19:00 UTCJun 12, 20:45 UTC1h 45m
2026-06-12 N814LG - Jun 12, 16:45 UTCJun 12, 18:20 UTC1h 35m
2026-06-11 N814LG - Jun 11, 17:35 UTCJun 11, 19:45 UTC2h 10m
2026-06-11 N814LG - Jun 11, 11:25 UTCJun 11, 13:30 UTC2h 5m
2026-06-08 N814LG - Jun 8, 18:45 UTCJun 8, 21:45 UTC3h 0m
2026-06-08 N814LG - Jun 8, 15:10 UTCJun 8, 17:45 UTC2h 35m
2026-06-07 N814LG - Jun 7, 23:05 UTCJun 8, 01:15 UTC2h 10m
2026-06-07 N814LG RDM → XNA Jun 7, 02:55 UTCJun 8, 01:15 UTC22h 20m
2026-06-07 N814LG - Jun 7, 00:10 UTCJun 7, 02:19 UTC2h 10m
2026-06-06 N814LG - Jun 6, 20:45 UTCJun 6, 23:19 UTC2h 35m
2026-06-06 N814LG - Jun 6, 15:44 UTCJun 6, 18:00 UTC2h 15m
2026-06-06 N814LG - Jun 6, 13:20 UTCJun 6, 14:25 UTC1h 5m
2026-06-06 N814LG - Jun 6, 11:45 UTCJun 6, 12:35 UTC50m
2026-06-05 N814LG - Jun 5, 20:30 UTCJun 5, 20:50 UTC20m
2026-06-05 N814LG - Jun 5, 19:35 UTCJun 5, 19:55 UTC20m
2026-06-05 N814LG - Jun 5, 02:05 UTCJun 5, 02:20 UTC15m
2026-06-05 N814LG - Jun 5, 00:40 UTCJun 5, 01:25 UTC45m
2026-06-04 N814LG - Jun 4, 21:05 UTCJun 4, 21:45 UTC40m
2026-06-04 N814LG - Jun 4, 13:30 UTCJun 4, 15:00 UTC1h 30m
2026-06-04 N814LG - Jun 4, 12:45 UTCJun 4, 12:55 UTC10m
2026-06-02 N814LG - Jun 2, 23:40 UTCJun 3, 02:45 UTC3h 5m
2026-06-02 N814LG - Jun 2, 20:15 UTCJun 2, 22:50 UTC2h 35m
2026-06-01 N814LG - Jun 1, 06:35 UTCJun 1, 07:55 UTC1h 20m
2026-05-31 N814LG - May 31, 16:00 UTCMay 31, 17:15 UTC1h 15m
2026-05-26 N814LG - May 26, 17:09 UTCMay 26, 18:45 UTC1h 35m
2026-05-22 N814LG - May 22, 15:20 UTCMay 22, 17:10 UTC1h 50m
2026-05-18 N814LG - May 18, 00:00 UTCMay 18, 02:20 UTC2h 20m
2026-05-17 N814LG - May 17, 01:15 UTCMay 17, 01:35 UTC20m
2026-05-16 N814LG - May 16, 22:35 UTCMay 17, 00:45 UTC2h 10m
2026-05-16 N814LG - May 16, 20:35 UTCMay 16, 21:45 UTC1h 10m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N814LG page for operator, model, and routing details .

Mode-S AB1939 frequently asked

What is Mode-S code AB1939?
AB1939 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N814LG.
Where is Mode-S AB1939 registered?
Mode-S code AB1939 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AB1939 broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB1939, octal 52614471, decimal 11,213,113.
What flights does AB1939 operate?
Mode-S AB1939 has broadcast 1 distinct callsign, including N814LG.