Apparatus

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sensors Mode-S transponder

ADDDD5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N993AN · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
ADDDD5
Octal
53356725
Decimal
11,394,517
Country
US
Tail
N993AN
Type
A321
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
537
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S ADDDD5.

Country allocation

The ICAO 24-bit address ADDDD5 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
AAL1275 - 7 2026-07-10
AAL3285 American Airlines 6 2026-06-03
AAL2845 American Airlines 6 2026-04-14
AAL903 American Airlines 5 2026-06-14
AAL662 American Airlines 4 2026-07-26
AAL2999 American Airlines 4 2026-04-16
AAL2876 American Airlines 4 2026-07-17
AAL2853 American Airlines 4 2026-04-27
AAL2584 American Airlines 4 2026-05-30
AAL2521 - 4 2026-06-26
AAL2462 American Airlines 4 2026-04-17
AAL2012 - 4 2026-06-30
AAL1840 American Airlines 4 2026-07-22
AAL1577 American Airlines 4 2026-07-25
AAL1192 American Airlines 4 2026-07-22
AAL1105 American Airlines 4 2026-04-16
AAL777 American Airlines 3 2026-06-03
AAL702 American Airlines 3 2026-06-05
AAL681 American Airlines 3 2026-04-17
AAL511 - 3 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL716 CLT → MUC Jul 26, 20:35 UTCJul 26, 21:15 UTC40m
2026-07-26 AAL1436 LIR → DFW Jul 26, 17:05 UTCJul 26, 17:15 UTC10m
2026-07-26 AAL1436 LIR → DFW Jul 26, 17:00 UTCJul 26, 18:30 UTC1h 30m
2026-07-26 AAL573 AUS → LAX Jul 26, 12:52 UTCJul 26, 15:37 UTC2h 45m
2026-07-26 AAL573 AUS → LAX Jul 26, 12:55 UTCJul 26, 15:35 UTC2h 40m
2026-07-26 AAL662 DFW → DEN Jul 26, 04:55 UTCJul 26, 06:25 UTC1h 30m
2026-07-26 AAL662 DFW → DEN Jul 26, 04:54 UTCJul 26, 06:24 UTC1h 30m
2026-07-25 AAL1577 ORD → DCA Jul 25, 23:25 UTCJul 26, 02:45 UTC3h 20m
2026-07-25 AAL1577 ORD → DCA Jul 25, 18:25 UTCJul 25, 21:40 UTC3h 15m
2026-07-25 AAL1099 BDL → CLT Jul 25, 13:20 UTCJul 25, 16:45 UTC3h 25m
2026-07-25 AAL1099 BDL → CLT Jul 25, 13:15 UTCJul 25, 16:43 UTC3h 28m
2026-07-25 AAL2373 SFO → CLT Jul 25, 00:40 UTCJul 25, 04:25 UTC3h 45m
2026-07-24 AAL2501 DFW → EWR Jul 24, 21:24 UTCJul 24, 23:01 UTC1h 37m
2026-07-24 AAL2501 DFW → EWR Jul 24, 18:25 UTCJul 24, 19:55 UTC1h 30m
2026-07-24 AAL2216 PDX → DFW Jul 24, 13:43 UTCJul 24, 16:55 UTC3h 12m
2026-07-24 AAL2216 PDX → DFW Jul 24, 13:45 UTCJul 24, 17:00 UTC3h 15m
2026-07-24 AAL2620 DFW → IND Jul 24, 04:30 UTCJul 24, 08:00 UTC3h 30m
2026-07-24 AAL1698 MIA → CLT Jul 24, 00:50 UTCJul 24, 02:55 UTC2h 5m
2026-07-23 AAL2676 EWR → PHX Jul 23, 13:10 UTCJul 23, 22:50 UTC9h 40m
2026-07-23 AAL1065 BNA → CLT Jul 23, 10:35 UTCJul 23, 11:30 UTC55m
2026-07-23 AAL1644 MCO → DCA Jul 23, 02:25 UTCJul 23, 03:25 UTC1h 0m
2026-07-22 AAL1192 DFW → ORD Jul 22, 22:05 UTCJul 23, 00:30 UTC2h 25m
2026-07-22 AAL1192 DFW → ORD Jul 22, 22:04 UTCJul 23, 00:29 UTC2h 25m
2026-07-22 AAL1778 - Jul 22, 18:40 UTCJul 22, 21:00 UTC2h 20m
2026-07-22 AAL3162 - Jul 22, 14:05 UTCJul 22, 16:10 UTC2h 5m
2026-07-22 AAL1840 CLT → IAH Jul 22, 01:40 UTCJul 22, 03:30 UTC1h 50m
2026-07-22 AAL1840 CLT → IAH Jul 22, 01:35 UTCJul 22, 03:29 UTC1h 54m
2026-07-21 AAL2270 ORD → EWR Jul 21, 22:50 UTCJul 22, 00:20 UTC1h 30m
2026-07-21 AAL2270 ORD → EWR Jul 21, 20:05 UTCJul 21, 21:25 UTC1h 20m
2026-07-21 AAL1651 SAN → CLT Jul 21, 14:25 UTCJul 21, 18:40 UTC4h 15m
2026-07-21 AAL2457 ORD → SAN Jul 21, 03:30 UTCJul 21, 07:05 UTC3h 35m
2026-07-20 AAL619 - Jul 20, 13:25 UTCJul 21, 00:05 UTC10h 39m
2026-07-20 AAL1881 MCO → PHL Jul 20, 01:30 UTCJul 20, 04:15 UTC2h 45m
2026-07-19 AAL3083 LGA → MCO Jul 19, 21:35 UTCJul 20, 00:00 UTC2h 25m
2026-07-19 AAL1068 RDU → DFW Jul 19, 17:20 UTCJul 19, 19:35 UTC2h 15m
2026-07-19 AAL1190 DFW → CUN Jul 19, 13:50 UTCJul 19, 16:00 UTC2h 10m
2026-07-19 AAL2677 MCO → DFW Jul 19, 09:45 UTCJul 19, 12:00 UTC2h 15m
2026-07-18 AAL2974 DFW → MCO Jul 18, 23:20 UTCJul 19, 01:35 UTC2h 15m
2026-07-18 AAL1583 CMH → DFW Jul 18, 18:15 UTCJul 18, 21:40 UTC3h 25m
2026-07-18 AAL1206 DFW → BOS Jul 18, 13:25 UTCJul 18, 16:30 UTC3h 5m
2026-07-18 AAL1206 DFW → BOS Jul 18, 13:25 UTCJul 18, 16:30 UTC3h 5m
2026-07-18 AAL727 SEA → DFW Jul 18, 03:10 UTCJul 18, 06:30 UTC3h 20m
2026-07-17 AAL727 - Jul 17, 21:55 UTCJul 18, 01:34 UTC3h 40m
2026-07-17 AAL1068 CUN → DFW Jul 17, 17:15 UTCJul 17, 19:35 UTC2h 20m
2026-07-17 AAL1190 DFW → CUN Jul 17, 13:25 UTCJul 17, 15:40 UTC2h 15m
2026-07-17 AAL2272 OKC → DFW Jul 17, 11:04 UTCJul 17, 11:38 UTC34m
2026-07-17 AAL2272 OKC → DFW Jul 17, 11:04 UTCJul 17, 11:39 UTC35m
2026-07-17 AAL2734 DFW → OKC Jul 17, 04:24 UTCJul 17, 04:59 UTC35m
2026-07-17 AAL2734 DFW → OKC Jul 17, 04:25 UTCJul 17, 05:04 UTC40m
2026-07-17 AAL2876 PHL → DEN Jul 17, 00:40 UTCJul 17, 02:34 UTC1h 55m

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 N993AN page for operator, model, and routing details .

Mode-S ADDDD5 frequently asked

What is Mode-S code ADDDD5?
ADDDD5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N993AN.
Where is Mode-S ADDDD5 registered?
Mode-S code ADDDD5 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 ADDDD5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ADDDD5, octal 53356725, decimal 11,394,517.
What flights does ADDDD5 operate?
Mode-S ADDDD5 has broadcast 20 distinct callsigns, including AAL1275, AAL3285, AAL2845, AAL903, AAL662.