Apparatus

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sensors Mode-S transponder

AB8F37

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N844FE · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORPORATION

Hex
AB8F37
Octal
52707467
Decimal
11,243,319
Country
US
Tail
N844FE
Type
C208
No current signal · last broadcast 8d ago
Flights observed
78
Distinct callsigns
17
Country
US
Last broadcast
8d ago

Last known position

Most recent position reported by Mode-S AB8F37.

Country allocation

The ICAO 24-bit address AB8F37 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 17 distinct

Callsign Airline Flights Last seen
PCM8260 - 14 2026-04-23
PCM7700 - 11 2026-04-23
PCM8684 - 8 2026-06-30
PCM7684 - 7 2026-06-26
PCM8711 - 6 2026-05-05
PCM7704 - 6 2026-05-05
PCM7733 - 4 2026-05-02
PCM7685 - 4 2026-06-30
PCM8671 - 3 2026-07-09
N844FE - 3 2026-07-09
PCM8709 - 2 2026-06-09
PCM8685 - 2 2026-06-26
PCM7721 - 2 2026-04-22
PCM7703 - 2 2026-06-09
PCM7652 - 2 2026-07-09
PCM8662 - 1 2026-07-07
PCM7653 - 1 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 N844FE - Jul 9, 14:55 UTCJul 9, 15:30 UTC35m
2026-07-09 PCM8671 - Jul 9, 13:35 UTCJul 9, 14:35 UTC1h 0m
2026-07-09 PCM7652 BFL → ONT Jul 9, 00:20 UTCJul 9, 01:15 UTC55m
2026-07-08 PCM8671 ONT → BFL Jul 8, 13:20 UTCJul 8, 14:15 UTC55m
2026-07-08 PCM7652 BFL → ONT Jul 8, 00:30 UTCJul 8, 01:20 UTC50m
2026-07-07 PCM8662 - Jul 7, 14:35 UTCJul 7, 15:25 UTC50m
2026-07-06 PCM7653 - Jul 6, 23:55 UTCJul 7, 00:50 UTC55m
2026-07-03 PCM8671 - Jul 3, 13:45 UTCJul 3, 14:35 UTC50m
2026-06-30 N844FE - Jun 30, 16:50 UTCJun 30, 17:40 UTC50m
2026-06-30 PCM8684 - Jun 30, 14:55 UTCJun 30, 15:15 UTC20m
2026-06-30 PCM7685 - Jun 30, 00:20 UTCJun 30, 00:35 UTC15m
2026-06-29 PCM7685 - Jun 29, 22:10 UTCJun 29, 22:30 UTC20m
2026-06-27 PCM8684 - Jun 27, 15:55 UTCJun 27, 16:20 UTC25m
2026-06-27 PCM7685 - Jun 27, 00:50 UTCJun 27, 01:09 UTC20m
2026-06-26 PCM8685 - Jun 26, 14:59 UTCJun 26, 15:20 UTC20m
2026-06-26 PCM7684 - Jun 26, 00:15 UTCJun 26, 00:45 UTC30m
2026-06-25 PCM8684 - Jun 25, 13:50 UTCJun 25, 14:09 UTC20m
2026-06-25 PCM7684 - Jun 25, 00:19 UTCJun 25, 00:44 UTC25m
2026-06-24 PCM8684 - Jun 24, 13:50 UTCJun 24, 14:15 UTC25m
2026-06-24 PCM7684 - Jun 24, 00:15 UTCJun 24, 00:34 UTC20m
2026-06-23 PCM8684 - Jun 23, 14:19 UTCJun 23, 14:49 UTC30m
2026-06-23 PCM7684 - Jun 23, 00:15 UTCJun 23, 00:35 UTC20m
2026-06-22 PCM7684 - Jun 22, 22:34 UTCJun 22, 22:59 UTC25m
2026-06-20 PCM8684 - Jun 20, 16:09 UTCJun 20, 16:29 UTC20m
2026-06-20 PCM7685 - Jun 20, 00:39 UTCJun 20, 01:05 UTC25m
2026-06-19 PCM8685 - Jun 19, 14:04 UTCJun 19, 14:29 UTC25m
2026-06-19 PCM7684 - Jun 19, 00:24 UTCJun 19, 00:45 UTC20m
2026-06-18 PCM8684 - Jun 18, 14:45 UTCJun 18, 15:10 UTC25m
2026-06-18 PCM7684 - Jun 18, 00:20 UTCJun 18, 00:50 UTC30m
2026-06-17 PCM8684 - Jun 17, 18:40 UTCJun 17, 19:20 UTC40m
2026-06-16 N844FE - Jun 16, 00:00 UTCJun 16, 01:04 UTC1h 5m
2026-06-09 PCM8709 - Jun 9, 13:30 UTCJun 9, 14:10 UTC40m
2026-06-09 PCM7703 - Jun 9, 00:00 UTCJun 9, 00:40 UTC40m
2026-05-06 PCM8709 - May 6, 13:15 UTCMay 6, 13:55 UTC40m
2026-05-05 PCM7704 - May 5, 23:30 UTCMay 6, 00:10 UTC40m
2026-05-05 PCM8711 - May 5, 15:05 UTCMay 5, 15:50 UTC45m
2026-05-04 PCM7704 - May 4, 23:30 UTCMay 5, 00:10 UTC40m
2026-05-02 PCM7733 - May 2, 01:10 UTCMay 2, 01:55 UTC45m
2026-05-01 PCM7733 - May 1, 23:55 UTCMay 2, 00:35 UTC40m
2026-05-01 PCM8711 - May 1, 14:10 UTCMay 1, 14:55 UTC45m
2026-04-30 PCM7704 - Apr 30, 23:25 UTCMay 1, 00:05 UTC40m
2026-04-30 PCM8711 - Apr 30, 13:35 UTCApr 30, 14:15 UTC40m
2026-04-30 PCM7703 - Apr 30, 00:00 UTCApr 30, 00:50 UTC50m
2026-04-29 PCM8711 - Apr 29, 14:10 UTCApr 29, 14:55 UTC45m
2026-04-28 PCM7704 - Apr 28, 23:29 UTCApr 29, 00:30 UTC1h 0m
2026-04-28 PCM8711 - Apr 28, 14:10 UTCApr 28, 14:55 UTC45m
2026-04-27 PCM7704 - Apr 27, 23:35 UTCApr 28, 00:20 UTC45m
2026-04-25 PCM7733 - Apr 25, 01:25 UTCApr 25, 02:15 UTC50m
2026-04-25 PCM7733 - Apr 25, 00:00 UTCApr 25, 00:55 UTC55m
2026-04-24 PCM8711 - Apr 24, 14:15 UTCApr 24, 15:00 UTC45m

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 N844FE page for operator, model, and routing details .

Mode-S AB8F37 frequently asked

What is Mode-S code AB8F37?
AB8F37 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N844FE.
Where is Mode-S AB8F37 registered?
Mode-S code AB8F37 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 AB8F37 broadcasting right now?
No active broadcast right now. Last signal was 8d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB8F37, octal 52707467, decimal 11,243,319.
What flights does AB8F37 operate?
Mode-S AB8F37 has broadcast 17 distinct callsigns, including PCM8260, PCM7700, PCM8684, PCM7684, PCM8711.