Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

ACE81D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N93003 · AIRBUS A-319 · operated by UMB BANK NA TRUSTEE

Hex
ACE81D
Octal
53164035
Decimal
11,331,613
Country
US
Tail
N93003
Type
A319
No current signal · last broadcast 1h ago
Flights observed
499
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S ACE81D.

Country allocation

The ICAO 24-bit address ACE81D 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
AAL2952 - 11 2026-07-10
AAL2431 - 9 2026-07-08
AAL1923 - 9 2026-07-13
AAL1799 - 9 2026-07-14
AAL3023 American Airlines 8 2026-07-06
AAL2741 American Airlines 8 2026-07-02
AAL1961 - 8 2026-07-13
AAL1762 - 8 2026-07-10
AAL163 American Airlines 8 2026-04-25
AAL2030 American Airlines 7 2026-05-01
AAL1878 - 7 2026-06-29
AAL880 American Airlines 6 2026-04-19
AAL657 - 6 2026-07-01
AAL310 American Airlines 6 2026-05-01
AAL2942 American Airlines 6 2026-04-29
AAL2717 - 6 2026-07-04
AAL1796 American Airlines 6 2026-05-20
AAL1172 - 6 2026-07-13
AAL3129 - 5 2026-06-22
AAL3119 American Airlines 5 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAL1799 - Jul 14, 01:30 UTCJul 14, 03:05 UTC1h 35m
2026-07-13 AAL1799 - Jul 13, 22:25 UTCJul 14, 00:00 UTC1h 35m
2026-07-13 AAL1923 - Jul 13, 20:40 UTCJul 13, 21:00 UTC20m
2026-07-13 AAL1923 JAC → DFW Jul 13, 18:02 UTCJul 13, 20:21 UTC2h 19m
2026-07-13 AAL1961 - Jul 13, 13:15 UTCJul 13, 21:00 UTC7h 45m
2026-07-13 AAL1172 SAV → CLT Jul 13, 09:05 UTCJul 13, 09:45 UTC40m
2026-07-13 AAL1172 - Jul 13, 09:05 UTCJul 13, 09:50 UTC45m
2026-07-13 AAL1517 - Jul 13, 06:30 UTCJul 13, 07:10 UTC40m
2026-07-13 AAL1450 - Jul 13, 04:20 UTCJul 13, 05:15 UTC55m
2026-07-13 AAL1450 - Jul 13, 02:30 UTCJul 13, 03:25 UTC55m
2026-07-12 AAL1965 - Jul 12, 21:20 UTCJul 13, 00:25 UTC3h 5m
2026-07-12 AAL2943 - Jul 12, 15:40 UTCJul 12, 20:15 UTC4h 35m
2026-07-12 AAL2943 DFW → STT Jul 12, 15:37 UTCJul 12, 20:25 UTC4h 48m
2026-07-12 AAL2377 - Jul 12, 13:10 UTCJul 12, 14:01 UTC50m
2026-07-12 AAL1406 DFW → SAT Jul 12, 03:21 UTCJul 12, 04:03 UTC42m
2026-07-11 AAL1970 ORD → DFW Jul 11, 20:25 UTCJul 12, 02:20 UTC5h 55m
2026-07-11 AAL2675 - Jul 11, 15:45 UTCJul 11, 18:45 UTC3h 0m
2026-07-11 AAL2675 TUS → ORD Jul 11, 15:41 UTCJul 11, 18:39 UTC2h 58m
2026-07-11 AAL2661 - Jul 11, 02:50 UTCJul 11, 06:10 UTC3h 20m
2026-07-11 AAL2661 ORD → TUS Jul 11, 02:46 UTCJul 11, 06:13 UTC3h 27m
2026-07-10 AAL3282 DFW → ORD Jul 10, 19:20 UTCJul 11, 01:10 UTC5h 51m
2026-07-10 AAL2952 - Jul 10, 16:50 UTCJul 10, 18:20 UTC1h 30m
2026-07-10 AAL2952 - Jul 10, 13:50 UTCJul 10, 15:25 UTC1h 35m
2026-07-10 AAL2326 - Jul 10, 10:20 UTCJul 10, 11:55 UTC1h 35m
2026-07-10 AAL2326 DSM → DFW Jul 10, 10:19 UTCJul 10, 11:48 UTC1h 29m
2026-07-10 AAL1371 DFW → DSM Jul 10, 03:25 UTCJul 10, 04:45 UTC1h 20m
2026-07-10 AAL1762 - Jul 10, 00:15 UTCJul 10, 01:55 UTC1h 40m
2026-07-09 AAL1762 DFW → DSM Jul 9, 21:45 UTCJul 9, 23:10 UTC1h 25m
2026-07-09 AAL1923 JAC → DFW Jul 9, 18:03 UTCJul 9, 20:15 UTC2h 12m
2026-07-09 AAL1961 - Jul 9, 13:10 UTCJul 9, 20:15 UTC7h 5m
2026-07-09 AAL978 - Jul 9, 10:10 UTCJul 9, 11:25 UTC1h 15m
2026-07-09 AAL978 MEM → CLT Jul 9, 10:06 UTCJul 9, 11:25 UTC1h 19m
2026-07-08 AAL2392 - Jul 8, 22:10 UTCJul 8, 23:25 UTC1h 15m
2026-07-08 AAL2431 - Jul 8, 16:05 UTCJul 8, 19:30 UTC3h 25m
2026-07-08 AAL2431 STT → CLT Jul 8, 15:57 UTCJul 8, 19:13 UTC3h 16m
2026-07-08 AAL2431 - Jul 8, 11:30 UTCJul 8, 14:40 UTC3h 10m
2026-07-07 AAL1965 - Jul 7, 19:00 UTCJul 7, 22:05 UTC3h 5m
2026-07-07 AAL1965 STT → CLT Jul 7, 18:55 UTCJul 7, 22:18 UTC3h 23m
2026-07-07 AAL2432 - Jul 7, 14:30 UTCJul 7, 17:35 UTC3h 5m
2026-07-07 AAL2432 CLT → STT Jul 7, 14:27 UTCJul 7, 17:45 UTC3h 18m
2026-07-07 AAL3263 - Jul 7, 04:35 UTCJul 7, 05:40 UTC1h 5m
2026-07-06 AAL3263 - Jul 6, 23:50 UTCJul 7, 00:55 UTC1h 5m
2026-07-06 AAL3263 CLT → DCA Jul 6, 23:47 UTCJul 7, 00:49 UTC1h 2m
2026-07-06 AAL3023 STS → DFW Jul 6, 17:19 UTCJul 6, 20:55 UTC3h 36m
2026-07-06 AAL3023 STS → DFW Jul 6, 13:50 UTCJul 6, 21:00 UTC7h 10m
2026-07-06 AAL2326 - Jul 6, 10:30 UTCJul 6, 11:55 UTC1h 25m
2026-07-06 AAL1371 DFW → DSM Jul 6, 03:15 UTCJul 6, 04:45 UTC1h 30m
2026-07-06 AAL1371 DFW → DSM Jul 6, 03:13 UTCJul 6, 04:37 UTC1h 24m
2026-07-06 AAL1762 - Jul 6, 00:20 UTCJul 6, 01:45 UTC1h 25m
2026-07-05 AAL1762 DFW → DSM Jul 5, 21:55 UTCJul 5, 23:20 UTC1h 25m

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 N93003 page for operator, model, and routing details .

Mode-S ACE81D frequently asked

What is Mode-S code ACE81D?
ACE81D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N93003.
Where is Mode-S ACE81D registered?
Mode-S code ACE81D 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 ACE81D broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACE81D, octal 53164035, decimal 11,331,613.
What flights does ACE81D operate?
Mode-S ACE81D has broadcast 20 distinct callsigns, including AAL2952, AAL2431, AAL1923, AAL1799, AAL3023.