Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A3A647

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N334SM · BOEING 737 MAX 8 · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A3A647
Octal
50723107
Decimal
10,724,935
Country
US
Tail
N334SM
Type
B38M
No current signal · last broadcast 1h ago
Flights observed
446
Distinct callsigns
20
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S A3A647.

Country allocation

The ICAO 24-bit address A3A647 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
AAL2478 - 7 2026-07-01
AAL1305 - 7 2026-07-09
AAL1129 - 7 2026-06-28
AAL2995 - 6 2026-06-27
AAL2164 - 6 2026-06-29
AAL1749 - 6 2026-07-02
AAL3315 American Airlines 5 2026-06-04
AAL1066 American Airlines 5 2026-05-18
AAL913 American Airlines 4 2026-05-08
AAL505 - 4 2026-06-27
AAL490 - 4 2026-07-12
AAL2916 American Airlines 4 2026-04-16
AAL2887 American Airlines 4 2026-06-03
AAL250 American Airlines 4 2026-07-07
AAL249 - 4 2026-07-07
AAL2405 American Airlines 4 2026-04-16
AAL1769 - 4 2026-06-22
AAL1382 American Airlines 4 2026-06-14
AAL1283 American Airlines 4 2026-06-06
AAL1272 American Airlines 4 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AAL921 - Jul 13, 22:30 UTCJul 14, 01:30 UTC3h 0m
2026-07-13 AAL1256 - Jul 13, 19:50 UTCJul 13, 20:15 UTC25m
2026-07-13 AAL1256 ANU → MIA Jul 13, 17:32 UTCJul 13, 20:14 UTC2h 42m
2026-07-13 AAL1136 - Jul 13, 12:20 UTCJul 13, 15:35 UTC3h 15m
2026-07-13 AAL1136 JFK → ANU Jul 13, 12:19 UTCJul 13, 16:00 UTC3h 41m
2026-07-12 AAL2002 LAS → JFK Jul 12, 20:40 UTCJul 13, 01:30 UTC4h 50m
2026-07-12 AAL2018 PHL → LAS Jul 12, 12:45 UTCJul 12, 17:01 UTC4h 15m
2026-07-12 AAL490 - Jul 12, 03:40 UTCJul 12, 05:10 UTC1h 30m
2026-07-12 AAL490 ORD → PHL Jul 12, 03:40 UTCJul 12, 05:12 UTC1h 32m
2026-07-11 AAL1168 - Jul 11, 20:15 UTCJul 11, 23:50 UTC3h 35m
2026-07-11 AAL1168 - Jul 11, 19:30 UTCJul 11, 19:40 UTC10m
2026-07-11 AAL329 ORD → GUA Jul 11, 13:50 UTCJul 11, 17:50 UTC4h 0m
2026-07-11 AAL329 ORD → GUA Jul 11, 13:48 UTCJul 11, 17:49 UTC4h 1m
2026-07-10 AAL1936 EWR → ORD Jul 10, 22:50 UTCJul 11, 01:05 UTC2h 15m
2026-07-10 AAL1936 ORD → EWR Jul 10, 18:55 UTCJul 10, 20:55 UTC2h 0m
2026-07-10 AAL518 - Jul 10, 13:35 UTCJul 10, 17:00 UTC3h 25m
2026-07-10 AAL2463 - Jul 10, 01:40 UTCJul 10, 06:20 UTC4h 40m
2026-07-09 AAL1723 - Jul 9, 22:35 UTCJul 9, 23:50 UTC1h 15m
2026-07-09 AAL158 - Jul 9, 19:55 UTCJul 9, 21:15 UTC1h 20m
2026-07-09 AAL158 MIA → CUN Jul 9, 19:54 UTCJul 9, 21:10 UTC1h 16m
2026-07-09 AAL1627 DCA → MIA Jul 9, 16:14 UTCJul 9, 18:25 UTC2h 11m
2026-07-09 AAL1627 DCA → MIA Jul 9, 16:15 UTCJul 9, 18:25 UTC2h 10m
2026-07-09 AAL2345 - Jul 9, 13:10 UTCJul 9, 14:45 UTC1h 35m
2026-07-09 AAL2345 ORD → DCA Jul 9, 13:09 UTCJul 9, 14:42 UTC1h 33m
2026-07-09 AAL1305 - Jul 9, 07:30 UTCJul 9, 09:45 UTC2h 15m
2026-07-09 AAL1305 YVR → ORD Jul 9, 07:28 UTCJul 9, 10:59 UTC3h 31m
2026-07-09 AAL1305 - Jul 9, 01:45 UTCJul 9, 06:05 UTC4h 20m
2026-07-08 AAL3177 - Jul 8, 20:15 UTCJul 8, 22:40 UTC2h 25m
2026-07-08 AAL3177 BZN → ORD Jul 8, 19:59 UTCJul 8, 22:22 UTC2h 23m
2026-07-08 AAL1645 - Jul 8, 15:45 UTCJul 8, 18:05 UTC2h 20m
2026-07-08 AAL1645 ORD → BZN Jul 8, 15:43 UTCJul 8, 18:26 UTC2h 43m
2026-07-08 AAL354 TPA → ORD Jul 8, 10:50 UTCJul 8, 13:00 UTC2h 10m
2026-07-08 AAL354 TPA → ORD Jul 8, 10:47 UTCJul 8, 13:03 UTC2h 16m
2026-07-08 AAL353 - Jul 8, 01:55 UTCJul 8, 04:05 UTC2h 10m
2026-07-08 AAL353 ORD → TPA Jul 8, 01:52 UTCJul 8, 04:11 UTC2h 19m
2026-07-07 AAL250 GIG → DFW Jul 7, 19:30 UTCJul 7, 23:10 UTC3h 40m
2026-07-07 AAL249 - Jul 7, 14:00 UTCJul 7, 17:25 UTC3h 25m
2026-07-07 AAL1652 - Jul 7, 09:25 UTCJul 7, 11:10 UTC1h 45m
2026-07-07 AAL1652 PHL → ORD Jul 7, 09:24 UTCJul 7, 11:02 UTC1h 38m
2026-07-07 AAL490 ORD → PHL Jul 7, 03:27 UTCJul 7, 04:56 UTC1h 29m
2026-07-07 AAL490 ORD → PHL Jul 7, 03:30 UTCJul 7, 05:05 UTC1h 35m
2026-07-06 AAL2520 DFW → YYC Jul 6, 21:54 UTCJul 7, 01:18 UTC3h 24m
2026-07-06 AAL2520 DFW → YYC Jul 6, 21:55 UTCJul 7, 01:20 UTC3h 25m
2026-07-06 AAL2520 DFW → YYC Jul 6, 16:10 UTCJul 6, 19:55 UTC3h 45m
2026-07-06 AAL2112 - Jul 6, 12:15 UTCJul 6, 13:35 UTC1h 20m
2026-07-06 AAL564 ORD → BUF Jul 6, 03:05 UTCJul 6, 04:10 UTC1h 5m
2026-07-06 AAL564 ORD → BUF Jul 6, 03:00 UTCJul 6, 04:07 UTC1h 7m
2026-07-05 AAL1760 DEN → ORD Jul 5, 22:40 UTCJul 6, 00:40 UTC2h 0m
2026-07-05 AAL1760 ORD → DEN Jul 5, 19:05 UTCJul 5, 21:05 UTC2h 0m
2026-07-05 AAL1633 YYC → ORD Jul 5, 13:20 UTCJul 5, 16:20 UTC3h 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 N334SM page for operator, model, and routing details .

Mode-S A3A647 frequently asked

What is Mode-S code A3A647?
A3A647 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N334SM.
Where is Mode-S A3A647 registered?
Mode-S code A3A647 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 A3A647 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 A3A647, octal 50723107, decimal 10,724,935.
What flights does A3A647 operate?
Mode-S A3A647 has broadcast 20 distinct callsigns, including AAL2478, AAL1305, AAL1129, AAL2995, AAL2164.