Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A36A19

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N319UY · BOEING 737 MAX 8 · operated by AMERICAN AIRLINES INC

Hex
A36A19
Octal
50665031
Decimal
10,709,529
Country
US
Tail
N319UY
Type
B38M
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
517
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S A36A19.

Country allocation

The ICAO 24-bit address A36A19 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
AAL2035 - 8 2026-06-19
AAL2799 - 7 2026-07-07
AAL2744 - 7 2026-06-24
AAL348 - 6 2026-06-16
AAL3208 American Airlines 6 2026-05-15
AAL2901 American Airlines 6 2026-05-14
AAL2738 American Airlines 6 2026-06-02
AAL944 - 5 2026-07-17
AAL2162 - 5 2026-07-08
AAL1918 - 5 2026-07-08
AAL1376 American Airlines 5 2026-05-22
AAL990 - 4 2026-07-18
AAL654 - 4 2026-07-13
AAL3316 - 4 2026-07-16
AAL3178 American Airlines 4 2026-05-28
AAL3097 American Airlines 4 2026-05-22
AAL3030 American Airlines 4 2026-04-16
AAL2626 - 4 2026-07-17
AAL2578 American Airlines 4 2026-04-18
AAL2565 - 4 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL2269 ORD → BOS Jul 26, 17:25 UTCJul 26, 20:10 UTC2h 45m
2026-07-26 AAL2269 ORD → BOS Jul 26, 13:30 UTCJul 26, 15:45 UTC2h 15m
2026-07-26 AAL1305 DFW → PLS Jul 26, 07:10 UTCJul 26, 10:35 UTC3h 25m
2026-07-26 AAL1305 DFW → PLS Jul 26, 01:25 UTCJul 26, 05:50 UTC4h 25m
2026-07-25 AAL1833 CLT → PBI Jul 25, 21:25 UTCJul 25, 23:05 UTC1h 40m
2026-07-25 AAL1833 CLT → PBI Jul 25, 15:10 UTCJul 25, 17:30 UTC2h 20m
2026-07-24 AAL2440 PWM → DFW Jul 24, 22:35 UTCJul 25, 01:25 UTC2h 50m
2026-07-24 AAL672 STT → MCO Jul 24, 18:00 UTCJul 24, 20:25 UTC2h 25m
2026-07-24 AAL3100 LAX → SFO Jul 24, 14:00 UTCJul 24, 15:55 UTC1h 55m
2026-07-23 AAL2165 JFK → MDE Jul 23, 23:15 UTCJul 24, 01:50 UTC2h 35m
2026-07-23 AAL2165 JFK → MDE Jul 23, 18:40 UTCJul 23, 21:20 UTC2h 40m
2026-07-23 AAL388 DFW → PHL Jul 23, 15:40 UTCJul 23, 17:10 UTC1h 30m
2026-07-22 AAL2768 TPA → ORD Jul 22, 22:30 UTCJul 23, 01:05 UTC2h 35m
2026-07-22 AAL2768 ORD → TPA Jul 22, 18:50 UTCJul 22, 21:00 UTC2h 10m
2026-07-22 AAL518 SAN → ORD Jul 22, 13:35 UTCJul 22, 17:00 UTC3h 25m
2026-07-22 AAL2463 SNA → PHX Jul 22, 00:40 UTCJul 22, 05:15 UTC4h 35m
2026-07-21 AAL264 - Jul 21, 17:25 UTCJul 21, 20:15 UTC2h 50m
2026-07-21 AAL264 - Jul 21, 12:45 UTCJul 21, 15:25 UTC2h 40m
2026-07-21 AAL1480 HNL → LAX Jul 21, 06:00 UTCJul 21, 10:45 UTC4h 45m
2026-07-21 AAL1924 CLT → BOS Jul 21, 00:35 UTCJul 21, 04:10 UTC3h 35m
2026-07-20 AAL2679 - Jul 20, 18:45 UTCJul 20, 22:30 UTC3h 45m
2026-07-20 AAL2679 - Jul 20, 13:25 UTCJul 20, 16:50 UTC3h 25m
2026-07-20 AAL3318 LGA → ORD Jul 20, 00:18 UTCJul 20, 02:14 UTC1h 56m
2026-07-20 AAL3318 LGA → ORD Jul 20, 00:20 UTCJul 20, 02:30 UTC2h 10m
2026-07-19 AAL1535 DFW → LGA Jul 19, 19:20 UTCJul 19, 22:30 UTC3h 10m
2026-07-19 AAL1382 - Jul 19, 15:15 UTCJul 19, 17:55 UTC2h 40m
2026-07-19 AAL519 - Jul 19, 00:40 UTCJul 19, 04:15 UTC3h 35m
2026-07-18 AAL3177 - Jul 18, 19:45 UTCJul 18, 21:55 UTC2h 10m
2026-07-18 AAL3177 BZN → ORD Jul 18, 19:26 UTCJul 18, 21:45 UTC2h 19m
2026-07-18 AAL990 - Jul 18, 13:30 UTCJul 18, 16:40 UTC3h 10m
2026-07-18 AAL990 CLT → BZN Jul 18, 13:26 UTCJul 18, 17:05 UTC3h 39m
2026-07-18 AAL440 - Jul 18, 09:10 UTCJul 18, 10:45 UTC1h 35m
2026-07-18 AAL1858 - Jul 18, 01:39 UTCJul 18, 03:15 UTC1h 36m
2026-07-17 AAL2626 - Jul 17, 19:20 UTCJul 17, 23:14 UTC3h 55m
2026-07-17 AAL2626 - Jul 17, 13:20 UTCJul 17, 17:30 UTC4h 10m
2026-07-17 AAL2643 - Jul 17, 10:10 UTCJul 17, 11:30 UTC1h 20m
2026-07-17 AAL944 - Jul 17, 02:15 UTCJul 17, 04:35 UTC2h 20m
2026-07-16 AAL3316 - Jul 16, 17:10 UTCJul 16, 23:40 UTC6h 30m
2026-07-16 AAL3121 - Jul 16, 11:15 UTCJul 16, 14:40 UTC3h 25m
2026-07-15 AAL2606 - Jul 15, 22:45 UTCJul 16, 01:45 UTC3h 0m
2026-07-15 AAL1256 ANU → MIA Jul 15, 17:19 UTCJul 15, 20:11 UTC2h 52m
2026-07-15 AAL1256 - Jul 15, 12:25 UTCJul 15, 20:10 UTC7h 45m
2026-07-15 AAL944 - Jul 15, 02:15 UTCJul 15, 04:40 UTC2h 25m
2026-07-15 AAL944 MIA → JFK Jul 15, 02:10 UTCJul 15, 04:40 UTC2h 30m
2026-07-14 AAL2979 - Jul 14, 19:50 UTCJul 15, 00:20 UTC4h 29m
2026-07-14 AAL2979 - Jul 14, 12:55 UTCJul 14, 17:45 UTC4h 50m
2026-07-13 AAL654 - Jul 13, 20:15 UTCJul 14, 01:50 UTC5h 35m
2026-07-13 AAL654 - Jul 13, 12:45 UTCJul 13, 18:20 UTC5h 35m
2026-07-13 AAL1080 - Jul 13, 05:50 UTCJul 13, 10:10 UTC4h 20m
2026-07-12 AAL2855 JFK → LAS Jul 12, 23:10 UTCJul 13, 03:40 UTC4h 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 N319UY page for operator, model, and routing details .

Mode-S A36A19 frequently asked

What is Mode-S code A36A19?
A36A19 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N319UY.
Where is Mode-S A36A19 registered?
Mode-S code A36A19 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 A36A19 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A36A19, octal 50665031, decimal 10,709,529.
What flights does A36A19 operate?
Mode-S A36A19 has broadcast 20 distinct callsigns, including AAL2035, AAL2799, AAL2744, AAL348, AAL3208.