Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A2A1A5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N269NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A2A1A5
Octal
50520645
Decimal
10,658,213
Country
US
Tail
N269NN
Type
E75L
No current signal · last broadcast Jul 26, 20:20 UTC
Flights observed
748
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 20:20 UTC

Last known position

Most recent position reported by Mode-S A2A1A5.

Country allocation

The ICAO 24-bit address A2A1A5 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
ENY3976 - 8 2026-06-23
ENY3602 - 8 2026-07-09
ENY4029 Envoy Air 7 2026-06-23
ENY3938 Envoy Air 7 2026-07-21
ENY3742 - 7 2026-06-23
ENY3592 Envoy Air 7 2026-05-12
ENY3454 - 7 2026-07-11
ENY4171 Envoy Air 6 2026-07-25
ENY4057 Envoy Air 6 2026-06-12
ENY3798 - 6 2026-06-29
ENY3708 Envoy Air 6 2026-07-23
ENY3654 Envoy Air 6 2026-06-28
ENY3508 Envoy Air 6 2026-05-14
ENY3337 Envoy Air 6 2026-06-12
ENY4177 Envoy Air 5 2026-06-06
ENY4139 Envoy Air 5 2026-06-08
ENY4138 - 5 2026-07-14
ENY4130 - 5 2026-07-22
ENY4082 - 5 2026-06-11
ENY4056 - 5 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3711 BOS → ORD Jul 26, 18:15 UTCJul 26, 20:20 UTC2h 5m
2026-07-26 ENY3354 DTW → ORD Jul 26, 15:15 UTCJul 26, 16:50 UTC1h 35m
2026-07-25 ENY3341 TVC → ORD Jul 25, 18:28 UTCJul 25, 20:28 UTC2h 0m
2026-07-25 ENY3341 TVC → ORD Jul 25, 18:30 UTCJul 25, 20:15 UTC1h 45m
2026-07-25 ENY4171 ORD → CVG Jul 25, 16:08 UTCJul 25, 17:01 UTC53m
2026-07-25 ENY4171 ORD → CVG Jul 25, 16:10 UTCJul 25, 17:05 UTC55m
2026-07-25 ENY4171 ORD → CVG Jul 25, 14:00 UTCJul 25, 15:00 UTC1h 0m
2026-07-25 ENY3807 CID → ORD Jul 25, 11:25 UTCJul 25, 13:05 UTC1h 40m
2026-07-24 ENY3408 MEM → ORD Jul 24, 22:25 UTCJul 25, 00:25 UTC2h 0m
2026-07-24 ENY3470 MDT → ORD Jul 24, 19:55 UTCJul 24, 21:15 UTC1h 20m
2026-07-24 ENY3470 MDT → ORD Jul 24, 19:50 UTCJul 24, 21:20 UTC1h 30m
2026-07-24 ENY3470 MDT → ORD Jul 24, 17:10 UTCJul 24, 18:55 UTC1h 45m
2026-07-24 ENY4106 ORD → BOS Jul 24, 14:10 UTCJul 24, 16:05 UTC1h 55m
2026-07-24 ENY4106 ORD → BOS Jul 24, 14:08 UTCJul 24, 15:59 UTC1h 51m
2026-07-24 ENY3445 LIT → ORD Jul 24, 11:15 UTCJul 24, 11:50 UTC35m
2026-07-24 ENY3445 LIT → ORD Jul 24, 11:12 UTCJul 24, 11:48 UTC36m
2026-07-24 ENY4034 DCA → BOS Jul 24, 02:45 UTCJul 24, 04:15 UTC1h 30m
2026-07-24 ENY4113 ILM → MIA Jul 24, 00:00 UTCJul 24, 01:05 UTC1h 5m
2026-07-23 ENY4113 ILM → MIA Jul 23, 22:00 UTCJul 23, 23:00 UTC1h 0m
2026-07-23 ENY3676 MIA → CVG Jul 23, 20:00 UTCJul 23, 21:00 UTC1h 0m
2026-07-23 ENY3676 MIA → CVG Jul 23, 17:50 UTCJul 23, 18:55 UTC1h 5m
2026-07-23 ENY3708 BOS → STL Jul 23, 15:30 UTCJul 23, 16:15 UTC45m
2026-07-23 ENY3708 BOS → STL Jul 23, 15:22 UTCJul 23, 16:15 UTC53m
2026-07-23 ENY3708 BOS → STL Jul 23, 13:50 UTCJul 23, 14:30 UTC40m
2026-07-23 ENY3828 - Jul 23, 10:35 UTCJul 23, 12:05 UTC1h 30m
2026-07-23 ENY4015 DFW → EVV Jul 23, 02:45 UTCJul 23, 04:05 UTC1h 20m
2026-07-22 ENY3803 DFW → MSY Jul 22, 23:50 UTCJul 23, 00:50 UTC1h 0m
2026-07-22 ENY3803 DFW → MSY Jul 22, 23:44 UTCJul 23, 00:45 UTC1h 1m
2026-07-22 ENY3803 DFW → MSY Jul 22, 21:55 UTCJul 22, 22:50 UTC55m
2026-07-22 ENY4130 - Jul 22, 20:00 UTCJul 22, 20:40 UTC40m
2026-07-22 ENY4130 - Jul 22, 18:20 UTCJul 22, 18:55 UTC35m
2026-07-22 ENY3805 CRP → DFW Jul 22, 16:25 UTCJul 22, 17:10 UTC45m
2026-07-22 ENY3805 CRP → DFW Jul 22, 16:20 UTCJul 22, 17:05 UTC45m
2026-07-22 ENY3805 CRP → DFW Jul 22, 14:45 UTCJul 22, 15:20 UTC35m
2026-07-22 ENY3521 - Jul 22, 11:35 UTCJul 22, 13:25 UTC1h 50m
2026-07-22 ENY4208 DFW → GJT Jul 22, 01:30 UTCJul 22, 03:25 UTC1h 55m
2026-07-21 ENY4152 - Jul 21, 22:20 UTCJul 22, 00:00 UTC1h 40m
2026-07-21 ENY4152 SDF → DFW Jul 21, 22:14 UTCJul 22, 00:00 UTC1h 46m
2026-07-21 ENY4152 - Jul 21, 19:25 UTCJul 21, 21:10 UTC1h 45m
2026-07-21 ENY3938 ORD → CID Jul 21, 16:20 UTCJul 21, 17:55 UTC1h 35m
2026-07-21 ENY3938 ORD → CID Jul 21, 13:45 UTCJul 21, 15:20 UTC1h 35m
2026-07-21 ENY3951 - Jul 21, 10:25 UTCJul 21, 11:40 UTC1h 15m
2026-07-21 ENY4308 - Jul 21, 02:30 UTCJul 21, 03:40 UTC1h 10m
2026-07-21 ENY3548 - Jul 21, 00:40 UTCJul 21, 01:15 UTC35m
2026-07-20 ENY3548 - Jul 20, 23:20 UTCJul 20, 23:45 UTC25m
2026-07-20 ENY3795 - Jul 20, 20:50 UTCJul 20, 21:45 UTC55m
2026-07-20 ENY3795 - Jul 20, 18:50 UTCJul 20, 19:50 UTC1h 0m
2026-07-20 ENY4142 ORD → GRR Jul 20, 16:40 UTCJul 20, 17:30 UTC50m
2026-07-20 ENY4142 ORD → GRR Jul 20, 14:55 UTCJul 20, 15:50 UTC55m
2026-07-20 ENY3737 SBP → PHX Jul 20, 12:40 UTCJul 20, 13:20 UTC40m

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 N269NN page for operator, model, and routing details .

Mode-S A2A1A5 frequently asked

What is Mode-S code A2A1A5?
A2A1A5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N269NN.
Where is Mode-S A2A1A5 registered?
Mode-S code A2A1A5 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 A2A1A5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2A1A5, octal 50520645, decimal 10,658,213.
What flights does A2A1A5 operate?
Mode-S A2A1A5 has broadcast 20 distinct callsigns, including ENY3976, ENY3602, ENY4029, ENY3938, ENY3742.