Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ABFEFD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N872NN · BOEING 737-800 · operated by BANK OF UTAH TRUSTEE

Hex
ABFEFD
Octal
52777375
Decimal
11,271,933
Country
US
Tail
N872NN
Type
B738
No current signal · last broadcast Jul 26, 20:00 UTC
Flights observed
518
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:00 UTC

Last known position

Most recent position reported by Mode-S ABFEFD.

Country allocation

The ICAO 24-bit address ABFEFD 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 20 distinct

Callsign Airline Flights Last seen
AAL2348 American Airlines 6 2026-05-18
AAL2439 American Airlines 5 2026-05-08
AAL2262 - 5 2026-07-02
AAL2189 American Airlines 5 2026-04-30
AAL877 - 4 2026-07-05
AAL486 - 4 2026-04-17
AAL462 - 4 2026-07-09
AAL2783 - 4 2026-07-01
AAL2704 - 4 2026-07-09
AAL2664 American Airlines 4 2026-05-23
AAL2581 - 4 2026-06-17
AAL2417 - 4 2026-07-10
AAL2280 American Airlines 4 2026-07-22
AAL2026 American Airlines 4 2026-05-14
AAL1492 American Airlines 4 2026-05-21
AAL1220 - 4 2026-07-02
AAL1094 American Airlines 4 2026-06-09
AAL525 American Airlines 3 2026-05-10
AAL413 American Airlines 3 2026-06-18
AAL3259 American Airlines 3 2026-05-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL672 STT → MCO Jul 26, 17:40 UTCJul 26, 20:00 UTC2h 20m
2026-07-26 AAL1633 DFW → PHL Jul 26, 13:18 UTCJul 26, 16:06 UTC2h 48m
2026-07-26 AAL1633 DFW → PHL Jul 26, 13:20 UTCJul 26, 16:10 UTC2h 50m
2026-07-26 AAL1632 RDU → LGA Jul 26, 02:15 UTCJul 26, 03:15 UTC1h 0m
2026-07-26 AAL1632 RDU → LGA Jul 26, 02:14 UTCJul 26, 06:06 UTC3h 52m
2026-07-25 AAL1592 LAS → AUS Jul 25, 22:05 UTCJul 26, 00:10 UTC2h 5m
2026-07-25 AAL3116 CLT → DSM Jul 25, 19:48 UTCJul 25, 20:34 UTC46m
2026-07-25 AAL3116 CLT → DSM Jul 25, 19:50 UTCJul 25, 20:35 UTC45m
2026-07-25 AAL2344 MIA → ORD Jul 25, 14:55 UTCJul 25, 17:55 UTC3h 0m
2026-07-24 AAL3158 SAF → DFW Jul 24, 21:45 UTCJul 25, 01:05 UTC3h 20m
2026-07-24 AAL1971 CUN → PHL Jul 24, 16:10 UTCJul 24, 19:20 UTC3h 10m
2026-07-24 AAL1752 PHL → CUN Jul 24, 11:25 UTCJul 24, 14:35 UTC3h 10m
2026-07-24 AAL3247 BUR → PHX Jul 24, 00:30 UTCJul 24, 02:55 UTC2h 25m
2026-07-24 AAL3247 BUR → PHX Jul 24, 00:26 UTCJul 24, 02:49 UTC2h 23m
2026-07-23 AAL3196 DCA → MSY Jul 23, 20:20 UTCJul 23, 23:20 UTC3h 0m
2026-07-23 AAL2805 LAS → PHL Jul 23, 16:20 UTCJul 23, 18:55 UTC2h 35m
2026-07-23 AAL2805 LAS → PHL Jul 23, 12:45 UTCJul 23, 15:10 UTC2h 25m
2026-07-22 AAL2808 PHL → MSY Jul 22, 22:30 UTCJul 23, 01:00 UTC2h 30m
2026-07-22 AAL2808 PHL → MSY Jul 22, 22:28 UTCJul 23, 00:59 UTC2h 31m
2026-07-22 AAL3241 BOS → DFW Jul 22, 18:40 UTCJul 22, 21:10 UTC2h 30m
2026-07-22 AAL3241 BOS → DFW Jul 22, 18:45 UTCJul 22, 21:15 UTC2h 30m
2026-07-22 AAL2280 MIA → SFO Jul 22, 02:30 UTCJul 22, 04:50 UTC2h 20m
2026-07-22 AAL2280 MIA → SFO Jul 22, 02:25 UTCJul 22, 04:46 UTC2h 21m
2026-07-21 AAL2271 MIA → LGA Jul 21, 12:50 UTCJul 21, 15:00 UTC2h 10m
2026-07-21 AAL2271 MIA → LGA Jul 21, 12:49 UTCJul 21, 14:55 UTC2h 6m
2026-07-20 AAL1848 - Jul 20, 23:15 UTCJul 21, 00:55 UTC1h 39m
2026-07-20 AAL2250 BOS → CLT Jul 20, 19:30 UTCJul 20, 21:20 UTC1h 50m
2026-07-20 AAL2250 BOS → CLT Jul 20, 16:40 UTCJul 20, 18:20 UTC1h 40m
2026-07-20 AAL2095 PHL → ORD Jul 20, 13:35 UTCJul 20, 15:15 UTC1h 40m
2026-07-19 AAL3057 PHX → CLT Jul 19, 14:10 UTCJul 19, 18:00 UTC3h 50m
2026-07-19 AAL3057 PHX → CLT Jul 19, 14:08 UTCJul 19, 18:01 UTC3h 53m
2026-07-19 AAL3133 ORD → SLC Jul 19, 03:17 UTCJul 19, 05:56 UTC2h 39m
2026-07-19 AAL3133 ORD → SLC Jul 19, 03:20 UTCJul 19, 06:00 UTC2h 40m
2026-07-18 AAL3056 - Jul 18, 22:20 UTCJul 19, 01:10 UTC2h 50m
2026-07-18 AAL1469 MIA → SDF Jul 18, 15:45 UTCJul 18, 17:00 UTC1h 15m
2026-07-18 AAL2494 - Jul 18, 13:05 UTCJul 18, 14:25 UTC1h 20m
2026-07-18 AAL2494 MIA → CUN Jul 18, 13:00 UTCJul 18, 14:28 UTC1h 28m
2026-07-18 AAL1452 - Jul 18, 01:50 UTCJul 18, 03:40 UTC1h 51m
2026-07-17 AAL1490 DFW → BNA Jul 17, 23:00 UTCJul 18, 00:29 UTC1h 30m
2026-07-17 AAL2873 - Jul 17, 18:25 UTCJul 17, 20:15 UTC1h 50m
2026-07-17 AAL2873 TYS → DFW Jul 17, 18:22 UTCJul 17, 20:12 UTC1h 50m
2026-07-17 AAL2873 - Jul 17, 15:29 UTCJul 17, 17:05 UTC1h 35m
2026-07-17 AAL537 STL → DFW Jul 17, 12:30 UTCJul 17, 14:10 UTC1h 40m
2026-07-16 AAL2686 - Jul 16, 23:15 UTCJul 17, 00:35 UTC1h 20m
2026-07-16 AAL2573 - Jul 16, 20:05 UTCJul 16, 21:15 UTC1h 10m
2026-07-16 AAL2573 - Jul 16, 17:25 UTCJul 16, 18:40 UTC1h 15m
2026-07-16 AAL2427 - Jul 16, 14:29 UTCJul 16, 16:00 UTC1h 30m
2026-07-16 AAL2427 - Jul 16, 11:30 UTCJul 16, 12:49 UTC1h 20m
2026-07-16 AAL1903 - Jul 16, 09:10 UTCJul 16, 09:40 UTC30m
2026-07-16 AAL2969 LGA → RDU Jul 16, 01:15 UTCJul 16, 02:15 UTC1h 0m

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 N872NN page for operator, model, and routing details .

Mode-S ABFEFD frequently asked

What is Mode-S code ABFEFD?
ABFEFD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N872NN.
Where is Mode-S ABFEFD registered?
Mode-S code ABFEFD 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 ABFEFD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ABFEFD, octal 52777375, decimal 11,271,933.
What flights does ABFEFD operate?
Mode-S ABFEFD has broadcast 20 distinct callsigns, including AAL2348, AAL2439, AAL2262, AAL2189, AAL877.