Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A01C37

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N106NN · AIRBUS A-321 · operated by UMB BANK NA TRUSTEE

Hex
A01C37
Octal
50016067
Decimal
10,492,983
Country
US
Tail
N106NN
Type
A321
Transponder active on ground
Flights observed
219
Distinct callsigns
20
Country
US
Last broadcast
19d ago

Last known position

Most recent position reported by Mode-S A01C37.

Country allocation

The ICAO 24-bit address A01C37 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
AAL15 American Airlines 11 2026-07-24
AAL341 - 9 2026-07-17
AAL3 - 9 2026-07-19
AAL276 American Airlines 9 2026-07-25
AAL234 American Airlines 9 2026-07-24
AAL171 - 9 2026-06-27
AAL307 American Airlines 8 2026-07-17
AAL302 - 8 2026-07-17
AAL238 American Airlines 8 2026-06-02
AAL179 American Airlines 8 2026-07-26
AAL177 American Airlines 8 2026-07-24
AAL166 American Airlines 8 2026-07-26
AAL149 American Airlines 8 2026-06-30
AAL4 American Airlines 7 2026-07-18
AAL32 American Airlines 7 2026-07-23
AAL2683 - 7 2026-07-15
AAL1691 - 7 2026-07-14
AAL148 - 7 2026-07-01
AAL118 - 7 2026-07-16
AAL1 American Airlines 7 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AAL166 SFO → JFK Jul 26, 19:15 UTCJul 26, 21:45 UTC2h 30m
2026-07-26 AAL179 JFK → SFO Jul 26, 12:10 UTCJul 26, 17:50 UTC5h 40m
2026-07-25 AAL166 SFO → JFK Jul 25, 19:40 UTCJul 26, 00:35 UTC4h 55m
2026-07-25 AAL179 JFK → SFO Jul 25, 12:25 UTCJul 25, 18:05 UTC5h 40m
2026-07-25 AAL276 SFO → JFK Jul 25, 04:45 UTCJul 25, 09:35 UTC4h 50m
2026-07-24 AAL15 JFK → SFO Jul 24, 21:20 UTCJul 25, 03:30 UTC6h 10m
2026-07-24 AAL15 JFK → SFO Jul 24, 21:19 UTCJul 25, 03:26 UTC6h 7m
2026-07-24 AAL234 SFO → JFK Jul 24, 13:45 UTCJul 24, 18:45 UTC5h 0m
2026-07-24 AAL177 JFK → SFO Jul 24, 02:20 UTCJul 24, 08:00 UTC5h 40m
2026-07-23 AAL32 LAX → JFK Jul 23, 18:30 UTCJul 23, 23:20 UTC4h 50m
2026-07-23 AAL33 JFK → LAX Jul 23, 11:45 UTCJul 23, 17:05 UTC5h 20m
2026-07-22 AAL274 LAX → JFK Jul 22, 20:40 UTCJul 23, 01:35 UTC4h 55m
2026-07-22 AAL274 LAX → JFK Jul 22, 20:35 UTCJul 23, 01:36 UTC5h 1m
2026-07-22 AAL1 JFK → LAX Jul 22, 13:30 UTCJul 22, 18:55 UTC5h 25m
2026-07-20 AAL32 LAX → JFK Jul 20, 18:30 UTCJul 20, 23:35 UTC5h 5m
2026-07-20 AAL32 LAX → JFK Jul 20, 18:26 UTCJul 20, 23:33 UTC5h 7m
2026-07-20 AAL2455 BOS → LAX Jul 20, 11:16 UTCJul 20, 16:40 UTC5h 24m
2026-07-20 AAL2455 BOS → LAX Jul 20, 11:20 UTCJul 20, 16:40 UTC5h 20m
2026-07-20 AAL1805 DFW → ORD Jul 20, 00:05 UTCJul 20, 05:10 UTC5h 5m
2026-07-20 AAL1805 DFW → ORD Jul 20, 00:03 UTCJul 20, 05:10 UTC5h 7m
2026-07-19 AAL3 JFK → LAX Jul 19, 17:45 UTCJul 19, 22:45 UTC5h 0m
2026-07-19 AAL4P LAX → JFK Jul 19, 14:35 UTCJul 19, 16:10 UTC1h 35m
2026-07-18 AAL4 LAX → JFK Jul 18, 20:55 UTCJul 19, 01:25 UTC4h 30m
2026-07-18 AAL1 - Jul 18, 14:15 UTCJul 18, 19:15 UTC5h 0m
2026-07-18 AAL30 AUA → ORD Jul 18, 06:45 UTCJul 18, 11:45 UTC5h 0m
2026-07-17 AAL302 - Jul 17, 23:30 UTCJul 18, 04:45 UTC5h 16m
2026-07-17 AAL307 LAX → JFK Jul 17, 15:49 UTCJul 17, 21:00 UTC5h 10m
2026-07-17 AAL341 - Jul 17, 02:45 UTCJul 17, 03:25 UTC40m
2026-07-16 AAL341 JFK → LAS Jul 16, 20:45 UTCJul 17, 01:39 UTC4h 55m
2026-07-16 AAL118 - Jul 16, 13:20 UTCJul 16, 18:15 UTC4h 55m
2026-07-16 AAL300 JFK → LAX Jul 16, 02:44 UTCJul 16, 07:57 UTC5h 13m
2026-07-16 AAL300 - Jul 16, 02:45 UTCJul 16, 08:00 UTC5h 15m
2026-07-15 AAL2683 - Jul 15, 19:05 UTCJul 16, 00:15 UTC5h 10m
2026-07-15 AAL2683 JFK → SNA Jul 15, 12:30 UTCJul 15, 17:20 UTC4h 50m
2026-07-15 AAL2683 JFK → SNA Jul 15, 12:27 UTCJul 15, 17:09 UTC4h 42m
2026-07-15 AAL30 - Jul 15, 05:40 UTCJul 15, 11:00 UTC5h 20m
2026-07-14 AAL302 - Jul 14, 22:40 UTCJul 15, 03:30 UTC4h 49m
2026-07-14 AAL307 - Jul 14, 15:45 UTCJul 14, 21:00 UTC5h 15m
2026-07-14 AAL1691 - Jul 14, 02:40 UTCJul 14, 07:35 UTC4h 55m
2026-07-13 AAL1691 - Jul 13, 19:50 UTCJul 14, 01:10 UTC5h 20m
2026-07-13 AAL1 - Jul 13, 13:30 UTCJul 13, 18:20 UTC4h 50m
2026-07-13 AAL30 - Jul 13, 05:40 UTCJul 13, 11:15 UTC5h 35m
2026-07-12 AAL302 - Jul 12, 23:10 UTCJul 13, 04:15 UTC5h 5m
2026-07-12 AAL307 - Jul 12, 15:40 UTCJul 12, 20:45 UTC5h 5m
2026-07-12 AAL1691 - Jul 12, 00:25 UTCJul 12, 05:35 UTC5h 10m
2026-07-12 AAL1691 BOS → LAX Jul 12, 00:25 UTCJul 12, 05:35 UTC5h 10m
2026-07-11 AAL1691 - Jul 11, 17:15 UTCJul 11, 22:25 UTC5h 10m
2026-07-10 AAL341 - Jul 10, 21:35 UTCJul 11, 02:55 UTC5h 20m
2026-07-10 AAL118 LAX → JFK Jul 10, 14:40 UTCJul 10, 19:30 UTC4h 50m
2026-07-10 AAL118 LAX → JFK Jul 10, 14:40 UTCJul 10, 19:33 UTC4h 53m

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 N106NN page for operator, model, and routing details .

Mode-S A01C37 frequently asked

What is Mode-S code A01C37?
A01C37 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N106NN.
Where is Mode-S A01C37 registered?
Mode-S code A01C37 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 A01C37 broadcasting right now?
Mode-S A01C37 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A01C37, octal 50016067, decimal 10,492,983.
What flights does A01C37 operate?
Mode-S A01C37 has broadcast 20 distinct callsigns, including AAL15, AAL341, AAL3, AAL276, AAL234.