Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

AB84C9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N841NN · BOEING 737-800 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
AB84C9
Octal
52702311
Decimal
11,240,649
Country
US
Tail
N841NN
Type
B738
No current signal · last broadcast 3h ago
Flights observed
471
Distinct callsigns
20
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S AB84C9.

Country allocation

The ICAO 24-bit address AB84C9 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
AAL3255 - 6 2026-06-20
AAL2986 American Airlines 6 2026-04-16
AAL2926 - 5 2026-06-29
AAL2813 - 5 2026-07-07
AAL1624 - 5 2026-06-30
AAL1346 American Airlines 5 2026-05-31
AAL1216 American Airlines 5 2026-04-18
AAL2853 American Airlines 4 2026-05-10
AAL2829 American Airlines 4 2026-04-15
AAL2771 - 4 2026-06-20
AAL2424 American Airlines 4 2026-04-14
AAL1948 - 4 2026-07-06
AAL1831 American Airlines 4 2026-06-09
AAL1627 American Airlines 4 2026-06-13
AAL522 - 3 2026-06-27
AAL386 - 3 2026-07-05
AAL3122 American Airlines 3 2026-04-29
AAL3121 American Airlines 3 2026-04-29
AAL3062 American Airlines 3 2026-06-02
AAL2973 American Airlines 3 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL1367 ATL → MIA Jul 14, 01:24 UTCJul 14, 02:56 UTC1h 32m
2026-07-14 AAL1367 - Jul 14, 01:25 UTCJul 14, 03:05 UTC1h 40m
2026-07-13 AAL1367 - Jul 13, 21:45 UTCJul 13, 23:20 UTC1h 35m
2026-07-13 AAL1300 - Jul 13, 14:40 UTCJul 13, 18:10 UTC3h 30m
2026-07-13 AAL1047 - Jul 13, 10:25 UTCJul 13, 12:25 UTC2h 0m
2026-07-13 AAL1047 IAH → MIA Jul 13, 10:21 UTCJul 13, 12:23 UTC2h 2m
2026-07-13 AAL2230 - Jul 13, 03:20 UTCJul 13, 05:31 UTC2h 10m
2026-07-13 AAL2230 MIA → IAH Jul 13, 03:19 UTCJul 13, 05:30 UTC2h 11m
2026-07-12 AAL926 - Jul 12, 23:10 UTCJul 13, 01:25 UTC2h 15m
2026-07-12 AAL1899 - Jul 12, 17:55 UTCJul 12, 21:40 UTC3h 45m
2026-07-12 AAL1892 - Jul 12, 15:20 UTCJul 12, 16:15 UTC55m
2026-07-12 AAL455 AUS → PHX Jul 12, 11:30 UTCJul 12, 13:30 UTC2h 0m
2026-07-12 AAL691 PHX → AUS Jul 12, 03:05 UTCJul 12, 05:05 UTC2h 0m
2026-07-11 AAL2544 - Jul 11, 02:50 UTCJul 11, 04:25 UTC1h 35m
2026-07-10 AAL1253 ORD → SFO Jul 10, 21:20 UTCJul 11, 01:40 UTC4h 20m
2026-07-10 AAL2452 - Jul 10, 17:45 UTCJul 10, 19:55 UTC2h 10m
2026-07-10 AAL2452 - Jul 10, 15:00 UTCJul 10, 16:40 UTC1h 40m
2026-07-10 AAL2013 LAS → ORD Jul 10, 01:20 UTCJul 10, 05:05 UTC3h 45m
2026-07-10 AAL2013 LAS → ORD Jul 10, 01:17 UTCJul 10, 05:00 UTC3h 43m
2026-07-09 AAL2023 PHX → LAS Jul 9, 23:30 UTCJul 10, 00:14 UTC44m
2026-07-09 AAL2023 PHX → LAS Jul 9, 23:35 UTCJul 10, 00:15 UTC40m
2026-07-09 AAL2646 - Jul 9, 21:05 UTCJul 9, 22:05 UTC1h 0m
2026-07-09 AAL2646 PHX → SJD Jul 9, 17:15 UTCJul 9, 18:57 UTC1h 42m
2026-07-09 AAL2646 - Jul 9, 17:15 UTCJul 9, 18:10 UTC55m
2026-07-09 AAL1773 - Jul 9, 10:15 UTCJul 9, 13:25 UTC3h 10m
2026-07-08 AAL1255 PHX → IND Jul 8, 22:40 UTCJul 9, 01:45 UTC3h 5m
2026-07-08 AAL2244 - Jul 8, 20:25 UTCJul 8, 21:25 UTC1h 0m
2026-07-08 AAL2244 PHX → ONT Jul 8, 17:50 UTCJul 8, 18:40 UTC50m
2026-07-08 AAL3333 TPA → PHX Jul 8, 12:05 UTCJul 8, 15:50 UTC3h 45m
2026-07-07 AAL2813 DFW → TPA Jul 7, 19:25 UTCJul 7, 21:40 UTC2h 15m
2026-07-07 AAL2813 DFW → TPA Jul 7, 19:25 UTCJul 7, 21:30 UTC2h 5m
2026-07-07 AAL3052 ORD → DFW Jul 7, 16:00 UTCJul 7, 17:45 UTC1h 45m
2026-07-07 AAL3052 ORD → DFW Jul 7, 16:05 UTCJul 7, 17:50 UTC1h 45m
2026-07-07 AAL803 RSW → ORD Jul 7, 10:20 UTCJul 7, 12:50 UTC2h 30m
2026-07-07 AAL803 RSW → ORD Jul 7, 10:15 UTCJul 7, 12:44 UTC2h 29m
2026-07-07 AAL1267 - Jul 7, 01:25 UTCJul 7, 03:40 UTC2h 15m
2026-07-06 AAL1897 - Jul 6, 21:45 UTCJul 6, 23:50 UTC2h 5m
2026-07-06 AAL1897 - Jul 6, 18:30 UTCJul 6, 20:20 UTC1h 50m
2026-07-06 AAL1948 - Jul 6, 15:25 UTCJul 6, 17:10 UTC1h 45m
2026-07-06 AAL1948 - Jul 6, 12:10 UTCJul 6, 13:45 UTC1h 35m
2026-07-06 AAL1158 DCA → DFW Jul 6, 01:12 UTCJul 6, 03:54 UTC2h 42m
2026-07-06 AAL1158 DCA → DFW Jul 6, 01:15 UTCJul 6, 03:50 UTC2h 35m
2026-07-05 AAL3138 CLT → TUL Jul 5, 20:15 UTCJul 5, 22:15 UTC2h 0m
2026-07-05 AAL3138 CLT → TUL Jul 5, 20:10 UTCJul 5, 22:15 UTC2h 5m
2026-07-05 AAL1301 - Jul 5, 14:50 UTCJul 5, 18:35 UTC3h 45m
2026-07-05 AAL386 - Jul 5, 11:20 UTCJul 5, 13:10 UTC1h 50m
2026-07-05 AAL386 MSY → MIA Jul 5, 11:16 UTCJul 5, 13:01 UTC1h 45m
2026-07-04 AAL2194 - Jul 4, 20:55 UTCJul 4, 22:00 UTC1h 5m
2026-07-04 AAL1358 ATL → DFW Jul 4, 17:50 UTCJul 4, 19:40 UTC1h 50m
2026-07-04 AAL1358 - Jul 4, 14:45 UTCJul 4, 16:25 UTC1h 40m

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 N841NN page for operator, model, and routing details .

Mode-S AB84C9 frequently asked

What is Mode-S code AB84C9?
AB84C9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N841NN.
Where is Mode-S AB84C9 registered?
Mode-S code AB84C9 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 AB84C9 broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB84C9, octal 52702311, decimal 11,240,649.
What flights does AB84C9 operate?
Mode-S AB84C9 has broadcast 20 distinct callsigns, including AAL3255, AAL2986, AAL2926, AAL2813, AAL1624.