Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A68E7C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N521UW · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
A68E7C
Octal
51507174
Decimal
10,915,452
Country
US
Tail
N521UW
Type
A321
No current signal · last broadcast Jul 26, 21:50 UTC
Flights observed
519
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:50 UTC

Last known position

Most recent position reported by Mode-S A68E7C.

Country allocation

The ICAO 24-bit address A68E7C 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
AAL636 American Airlines 7 2026-04-15
AAL2584 American Airlines 7 2026-07-23
AAL2931 American Airlines 6 2026-05-09
AAL2832 American Airlines 6 2026-05-30
AAL3001 - 5 2026-07-08
AAL2629 American Airlines 5 2026-04-17
AAL2554 American Airlines 5 2026-07-20
AAL2328 American Airlines 5 2026-04-18
AAL1463 American Airlines 5 2026-07-26
AAL1456 American Airlines 5 2026-05-20
AAL783 - 4 2026-07-15
AAL3287 American Airlines 4 2026-05-13
AAL3162 - 4 2026-06-29
AAL3064 American Airlines 4 2026-05-29
AAL2830 American Airlines 4 2026-05-11
AAL2529 - 4 2026-06-24
AAL2305 American Airlines 4 2026-06-12
AAL2105 - 4 2026-06-21
AAL1903 American Airlines 4 2026-04-21
AAL1611 American Airlines 4 2026-05-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL1463 JAX → CLT Jul 26, 19:35 UTCJul 26, 21:50 UTC2h 15m
2026-07-26 AAL1463 JAX → CLT Jul 26, 16:15 UTCJul 26, 18:10 UTC1h 55m
2026-07-26 AAL1853 LAS → DFW Jul 26, 12:15 UTCJul 26, 13:40 UTC1h 25m
2026-07-26 AAL1912 ORD → RDU Jul 26, 01:05 UTCJul 26, 02:20 UTC1h 15m
2026-07-25 AAL2407 GSP → DFW Jul 25, 01:45 UTCJul 25, 03:45 UTC2h 0m
2026-07-24 AAL1385 PHL → PHX Jul 24, 17:55 UTCJul 24, 23:55 UTC6h 0m
2026-07-24 AAL1987 PHL → LAS Jul 24, 13:25 UTCJul 24, 16:35 UTC3h 10m
2026-07-23 AAL2054 PHX → MIA Jul 23, 23:40 UTCJul 24, 02:05 UTC2h 25m
2026-07-23 AAL2584 BOS → STL Jul 23, 21:40 UTCJul 23, 21:55 UTC15m
2026-07-23 AAL2584 BOS → STL Jul 23, 19:50 UTCJul 23, 20:00 UTC10m
2026-07-23 AAL2584 BOS → STL Jul 23, 18:05 UTCJul 23, 18:15 UTC10m
2026-07-23 AAL2584 BOS → STL Jul 23, 16:00 UTCJul 23, 16:20 UTC20m
2026-07-23 AAL1530 LGA → MIA Jul 23, 11:48 UTCJul 23, 14:35 UTC2h 47m
2026-07-23 AAL1530 LGA → MIA Jul 23, 11:50 UTCJul 23, 14:35 UTC2h 45m
2026-07-23 AAL2708 DFW → LGA Jul 23, 00:40 UTCJul 23, 03:30 UTC2h 50m
2026-07-22 AAL767 BNA → PHL Jul 22, 19:00 UTCJul 22, 22:25 UTC3h 25m
2026-07-22 AAL767 BNA → PHL Jul 22, 18:56 UTCJul 22, 22:23 UTC3h 27m
2026-07-22 AAL767 BNA → PHL Jul 22, 13:50 UTCJul 22, 17:10 UTC3h 20m
2026-07-22 AAL2272 - Jul 22, 11:10 UTCJul 22, 11:55 UTC45m
2026-07-22 AAL2272 OKC → DFW Jul 22, 11:08 UTCJul 22, 11:50 UTC42m
2026-07-22 AAL2734 PHL → TPA Jul 22, 04:35 UTCJul 22, 05:20 UTC45m
2026-07-22 AAL1629 ORD → CLT Jul 22, 00:25 UTCJul 22, 03:10 UTC2h 45m
2026-07-21 AAL1629 ORD → CLT Jul 21, 18:30 UTCJul 21, 21:25 UTC2h 55m
2026-07-21 AAL1276 - Jul 21, 13:55 UTCJul 21, 16:00 UTC2h 5m
2026-07-21 AAL1063 - Jul 21, 11:35 UTCJul 21, 12:20 UTC45m
2026-07-21 AAL1882 - Jul 21, 05:35 UTCJul 21, 06:20 UTC45m
2026-07-21 AAL2886 ORD → BOS Jul 21, 03:55 UTCJul 21, 04:25 UTC30m
2026-07-21 AAL2886 ORD → BOS Jul 21, 03:49 UTCJul 21, 04:27 UTC38m
2026-07-21 AAL2886 ORD → BOS Jul 21, 02:40 UTCJul 21, 03:00 UTC20m
2026-07-20 AAL2790 - Jul 20, 16:20 UTCJul 21, 00:00 UTC7h 39m
2026-07-20 AAL3222 - Jul 20, 13:20 UTCJul 20, 14:35 UTC1h 15m
2026-07-20 AAL2554 PWM → DCA Jul 20, 08:10 UTCJul 20, 11:50 UTC3h 40m
2026-07-20 AAL2556 PWM → PHL Jul 20, 00:30 UTCJul 20, 05:10 UTC4h 40m
2026-07-19 AAL2402 PHL → STL Jul 19, 22:10 UTCJul 19, 22:45 UTC35m
2026-07-19 AAL2402 PHL → STL Jul 19, 22:08 UTCJul 19, 22:44 UTC36m
2026-07-19 AAL2402 PHL → STL Jul 19, 20:20 UTCJul 19, 20:50 UTC30m
2026-07-19 AAL854 SEA → CLT Jul 19, 14:30 UTCJul 19, 18:50 UTC4h 20m
2026-07-19 AAL1459 - Jul 19, 04:50 UTCJul 19, 08:40 UTC3h 50m
2026-07-19 AAL2488 - Jul 19, 01:45 UTCJul 19, 03:20 UTC1h 35m
2026-07-18 AAL2570 - Jul 18, 18:55 UTCJul 18, 23:25 UTC4h 30m
2026-07-18 AAL3237 PHL → BOS Jul 18, 13:10 UTCJul 18, 16:45 UTC3h 35m
2026-07-18 AAL3237 PHL → BOS Jul 18, 13:07 UTCJul 18, 16:45 UTC3h 38m
2026-07-18 AAL1644 - Jul 18, 02:50 UTCJul 18, 03:50 UTC1h 0m
2026-07-17 AAL1735 - Jul 17, 22:29 UTCJul 18, 01:25 UTC2h 55m
2026-07-17 AAL1735 - Jul 17, 18:29 UTCJul 17, 21:20 UTC2h 50m
2026-07-17 AAL1690 - Jul 17, 15:05 UTCJul 17, 17:05 UTC2h 0m
2026-07-17 AAL2268 TPA → DFW Jul 17, 10:15 UTCJul 17, 12:25 UTC2h 10m
2026-07-16 AAL1032 - Jul 16, 22:25 UTCJul 16, 23:44 UTC1h 20m
2026-07-16 AAL2170 - Jul 16, 18:59 UTCJul 16, 20:25 UTC1h 25m
2026-07-16 AAL2170 - Jul 16, 16:09 UTCJul 16, 17:40 UTC1h 30m

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 N521UW page for operator, model, and routing details .

Mode-S A68E7C frequently asked

What is Mode-S code A68E7C?
A68E7C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N521UW.
Where is Mode-S A68E7C registered?
Mode-S code A68E7C 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 A68E7C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A68E7C, octal 51507174, decimal 10,915,452.
What flights does A68E7C operate?
Mode-S A68E7C has broadcast 20 distinct callsigns, including AAL636, AAL2584, AAL2931, AAL2832, AAL3001.