Apparatus

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sensors Mode-S transponder

AB43C6

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N825DN · BOEING 737-900 · operated by WELLS FARGO TRUST CO NA TRUSTEE

Hex
AB43C6
Octal
52641706
Decimal
11,224,006
Country
US
Tail
N825DN
Type
B739
Transponder active on ground
Flights observed
381
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 14:55 UTC

Last known position

Most recent position reported by Mode-S AB43C6.

Country allocation

The ICAO 24-bit address AB43C6 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
DAL2396 - 6 2026-07-08
DAL717 - 5 2026-07-19
DAL3060 - 5 2026-06-28
DAL2634 - 5 2026-06-25
DAL2196 Delta Air Lines 5 2026-04-15
DAL2136 Delta Air Lines 5 2026-06-13
DAL2074 Delta Air Lines 5 2026-07-19
DAL1913 Delta Air Lines 5 2026-06-08
DAL888 Delta Air Lines 4 2026-04-17
DAL801 Delta Air Lines 4 2026-05-20
DAL627 Delta Air Lines 4 2026-04-15
DAL508 - 4 2026-07-17
DAL2723 - 4 2026-07-08
DAL2433 - 4 2026-07-08
DAL1643 Delta Air Lines 4 2026-05-29
DAL1361 - 4 2026-06-29
DAL1037 - 4 2026-07-13
DAL927 Delta Air Lines 3 2026-05-24
DAL913 Delta Air Lines 3 2026-04-17
DAL809 - 3 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 DAL553 LAS → LAX Jul 26, 14:10 UTCJul 26, 14:55 UTC45m
2026-07-26 DAL2202 JFK → MIA Jul 26, 03:05 UTCJul 26, 03:50 UTC45m
2026-07-25 DAL1161 DFW → LGA Jul 25, 23:30 UTCJul 26, 01:00 UTC1h 30m
2026-07-25 DAL1431 LAX → SFO Jul 25, 20:10 UTCJul 25, 21:25 UTC1h 15m
2026-07-25 DAL1431 LAX → SFO Jul 25, 20:09 UTCJul 25, 21:21 UTC1h 12m
2026-07-25 DAL1431 LAX → SFO Jul 25, 17:25 UTCJul 25, 18:35 UTC1h 10m
2026-07-25 DAL1176 BWI → SLC Jul 25, 11:35 UTCJul 25, 15:40 UTC4h 5m
2026-07-25 DAL2079 LGA → TPA Jul 25, 06:20 UTCJul 25, 09:55 UTC3h 35m
2026-07-25 DAL2311 MIA → BOS Jul 25, 02:45 UTCJul 25, 04:10 UTC1h 25m
2026-07-25 DAL2311 MIA → BOS Jul 25, 02:43 UTCJul 25, 04:02 UTC1h 19m
2026-07-24 DAL908 DTW → LAX Jul 24, 21:25 UTCJul 25, 01:25 UTC4h 0m
2026-07-19 DAL717 - Jul 19, 21:50 UTCJul 20, 01:45 UTC3h 55m
2026-07-19 DAL717 SFO → DTW Jul 19, 21:49 UTCJul 20, 01:43 UTC3h 54m
2026-07-19 DAL2074 MSP → IND Jul 19, 16:10 UTCJul 19, 19:30 UTC3h 20m
2026-07-19 DAL2074 MSP → IND Jul 19, 16:08 UTCJul 19, 19:36 UTC3h 28m
2026-07-18 DAL2415 SLC → SFO Jul 18, 19:05 UTCJul 18, 21:45 UTC2h 40m
2026-07-18 DAL2415 SLC → SFO Jul 18, 19:03 UTCJul 18, 21:53 UTC2h 50m
2026-07-18 DAL2415 SLC → SFO Jul 18, 14:15 UTCJul 18, 17:25 UTC3h 10m
2026-07-18 DAL2789 SFO → MSP Jul 18, 08:05 UTCJul 18, 11:15 UTC3h 10m
2026-07-18 DAL2986 LAX → SFO Jul 18, 05:37 UTCJul 18, 06:28 UTC51m
2026-07-18 DAL2986 LAX → SFO Jul 18, 05:40 UTCJul 18, 06:25 UTC45m
2026-07-17 DAL508 - Jul 17, 23:00 UTCJul 18, 03:30 UTC4h 31m
2026-07-17 DAL508 - Jul 17, 16:55 UTCJul 17, 21:25 UTC4h 30m
2026-07-17 DAL1598 - Jul 17, 14:20 UTCJul 17, 15:29 UTC1h 10m
2026-07-17 DAL2986 LAX → SFO Jul 17, 05:21 UTCJul 17, 06:11 UTC50m
2026-07-16 DAL508 - Jul 16, 22:59 UTCJul 17, 03:34 UTC4h 35m
2026-07-16 DAL508 - Jul 16, 16:49 UTCJul 16, 21:25 UTC4h 35m
2026-07-16 DAL1598 - Jul 16, 14:10 UTCJul 16, 15:14 UTC1h 5m
2026-07-16 DAL2197 - Jul 16, 05:40 UTCJul 16, 06:35 UTC55m
2026-07-16 DAL2197 LAX → SFO Jul 16, 05:36 UTCJul 16, 06:32 UTC56m
2026-07-16 DAL2120 LAS → LAX Jul 16, 01:10 UTCJul 16, 01:55 UTC45m
2026-07-15 DAL2120 - Jul 15, 23:00 UTCJul 15, 23:45 UTC45m
2026-07-15 DAL1071 - Jul 15, 18:10 UTCJul 15, 18:50 UTC40m
2026-07-15 DAL2253 - Jul 15, 15:55 UTCJul 15, 16:40 UTC45m
2026-07-15 DAL2253 LAX → LAS Jul 15, 15:50 UTCJul 15, 16:38 UTC48m
2026-07-15 DAL769 BNA → LAX Jul 15, 00:40 UTCJul 15, 04:25 UTC3h 45m
2026-07-14 DAL2205 SLC → BNA Jul 14, 20:00 UTCJul 14, 23:05 UTC3h 4m
2026-07-14 DAL2954 MSP → SLC Jul 14, 04:05 UTCJul 14, 18:30 UTC14h 25m
2026-07-13 DAL2159 SFO → MSP Jul 13, 22:40 UTCJul 14, 01:45 UTC3h 5m
2026-07-13 DAL469 - Jul 13, 16:35 UTCJul 13, 20:40 UTC4h 5m
2026-07-13 DAL1037 - Jul 13, 00:40 UTCJul 13, 03:15 UTC2h 35m
2026-07-12 DAL1037 - Jul 12, 20:35 UTCJul 12, 23:15 UTC2h 40m
2026-07-11 DAL1037 - Jul 11, 01:50 UTCJul 11, 04:10 UTC2h 20m
2026-07-10 DAL1037 - Jul 10, 21:30 UTCJul 11, 00:30 UTC3h 0m
2026-07-10 DAL2236 SLC → DTW Jul 10, 16:05 UTCJul 10, 19:10 UTC3h 5m
2026-07-10 DAL1535 - Jul 10, 13:05 UTCJul 10, 14:15 UTC1h 10m
2026-07-10 DAL1535 PHX → SLC Jul 10, 13:01 UTCJul 10, 14:13 UTC1h 12m
2026-07-10 DAL1496 SLC → PHX Jul 10, 06:10 UTCJul 10, 07:25 UTC1h 15m
2026-07-10 DAL1496 SLC → PHX Jul 10, 06:09 UTCJul 10, 07:18 UTC1h 9m
2026-07-10 DAL1244 PDX → SLC Jul 10, 00:30 UTCJul 10, 01:50 UTC1h 20m

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 N825DN page for operator, model, and routing details .

Mode-S AB43C6 frequently asked

What is Mode-S code AB43C6?
AB43C6 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N825DN.
Where is Mode-S AB43C6 registered?
Mode-S code AB43C6 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 AB43C6 broadcasting right now?
Mode-S AB43C6 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB43C6, octal 52641706, decimal 11,224,006.
What flights does AB43C6 operate?
Mode-S AB43C6 has broadcast 20 distinct callsigns, including DAL2396, DAL717, DAL3060, DAL2634, DAL2196.