Apparatus

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sensors Mode-S transponder

A2F6B3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N290NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A2F6B3
Octal
50573263
Decimal
10,679,987
Country
US
Tail
N290NN
Type
E75L
No current signal · last broadcast Jul 26, 22:35 UTC
Flights observed
747
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:35 UTC

Last known position

Most recent position reported by Mode-S A2F6B3.

Country allocation

The ICAO 24-bit address A2F6B3 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
ENY3498 - 8 2026-07-03
ENY4146 Envoy Air 7 2026-06-17
ENY3458 Envoy Air 7 2026-07-22
ENY3451 - 7 2026-07-17
ENY4122 Envoy Air 6 2026-05-20
ENY4106 Envoy Air 6 2026-07-02
ENY3689 Envoy Air 6 2026-05-17
ENY3606 Envoy Air 6 2026-07-26
ENY3564 Envoy Air 6 2026-06-30
ENY3560 - 6 2026-06-15
ENY3438 - 6 2026-06-28
ENY4134 Envoy Air 5 2026-05-20
ENY4114 - 5 2026-07-12
ENY4101 Envoy Air 5 2026-06-09
ENY4074 Envoy Air 5 2026-05-09
ENY3993 Envoy Air 5 2026-05-05
ENY3844 Envoy Air 5 2026-06-15
ENY3654 Envoy Air 5 2026-05-22
ENY3523 Envoy Air 5 2026-07-05
ENY3440 - 5 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY4176 XNA → MIA Jul 26, 20:30 UTCJul 26, 22:35 UTC2h 5m
2026-07-26 ENY3606 ORD → YYZ Jul 26, 17:35 UTCJul 26, 18:45 UTC1h 10m
2026-07-26 ENY3606 ORD → YYZ Jul 26, 17:35 UTCJul 26, 18:45 UTC1h 10m
2026-07-26 ENY3606 ORD → YYZ Jul 26, 15:15 UTCJul 26, 16:25 UTC1h 10m
2026-07-26 ENY4129 SGF → ORD Jul 26, 12:20 UTCJul 26, 13:30 UTC1h 10m
2026-07-26 ENY4129 SGF → ORD Jul 26, 12:19 UTCJul 26, 13:32 UTC1h 13m
2026-07-26 ENY3665 DFW → SGF Jul 26, 03:35 UTCJul 26, 04:30 UTC55m
2026-07-26 ENY3665 DFW → SGF Jul 26, 03:32 UTCJul 26, 04:30 UTC58m
2026-07-26 ENY3797 TPA → BNA Jul 26, 01:05 UTCJul 26, 02:00 UTC55m
2026-07-25 ENY3797 TPA → BNA Jul 25, 22:50 UTCJul 25, 23:45 UTC55m
2026-07-25 ENY3676 MIA → CVG Jul 25, 20:35 UTCJul 25, 21:35 UTC1h 0m
2026-07-25 ENY3676 MIA → CVG Jul 25, 20:30 UTCJul 25, 21:33 UTC1h 3m
2026-07-25 ENY3676 MIA → CVG Jul 25, 17:50 UTCJul 25, 19:00 UTC1h 10m
2026-07-25 ENY3708 BOS → STL Jul 25, 15:40 UTCJul 25, 16:30 UTC50m
2026-07-25 ENY3708 BOS → STL Jul 25, 13:50 UTCJul 25, 14:30 UTC40m
2026-07-25 ENY3372 ORD → COU Jul 25, 11:10 UTCJul 25, 12:15 UTC1h 5m
2026-07-25 ENY3589 DFW → LRD Jul 25, 04:00 UTCJul 25, 04:55 UTC55m
2026-07-25 ENY3727 CMH → BOS Jul 25, 02:25 UTCJul 25, 03:00 UTC35m
2026-07-25 ENY3727 CMH → BOS Jul 25, 02:20 UTCJul 25, 02:55 UTC35m
2026-07-25 ENY3727 CMH → BOS Jul 25, 01:05 UTCJul 25, 01:50 UTC45m
2026-07-24 ENY3653 LAN → ORD Jul 24, 23:20 UTCJul 25, 00:10 UTC50m
2026-07-24 ENY3653 LAN → ORD Jul 24, 21:20 UTCJul 24, 22:05 UTC45m
2026-07-24 ENY4202 ORD → STL Jul 24, 18:40 UTCJul 24, 19:55 UTC1h 15m
2026-07-24 ENY4202 ORD → STL Jul 24, 16:15 UTCJul 24, 17:35 UTC1h 20m
2026-07-24 ENY73H CMI → DFW Jul 24, 13:20 UTCJul 24, 15:05 UTC1h 45m
2026-07-23 ENY3887 DFW → CMI Jul 23, 01:00 UTCJul 23, 02:35 UTC1h 35m
2026-07-22 ENY3834 BOS → ORD Jul 22, 22:30 UTCJul 22, 22:55 UTC25m
2026-07-22 ENY3834 BOS → ORD Jul 22, 21:20 UTCJul 22, 21:40 UTC20m
2026-07-22 ENY3701 DFW → MSN Jul 22, 18:55 UTCJul 22, 19:45 UTC50m
2026-07-22 ENY3701 DFW → MSN Jul 22, 18:49 UTCJul 22, 19:38 UTC49m
2026-07-22 ENY3701 DFW → MSN Jul 22, 17:15 UTCJul 22, 17:50 UTC35m
2026-07-22 ENY3801 - Jul 22, 14:35 UTCJul 22, 15:35 UTC1h 0m
2026-07-22 ENY3801 SGF → DFW Jul 22, 14:31 UTCJul 22, 15:29 UTC58m
2026-07-22 ENY3801 - Jul 22, 12:40 UTCJul 22, 13:30 UTC50m
2026-07-22 ENY3960 CVG → ORD Jul 22, 03:50 UTCJul 22, 05:00 UTC1h 10m
2026-07-22 ENY3458 IND → ORD Jul 22, 00:20 UTCJul 22, 01:40 UTC1h 20m
2026-07-22 ENY3458 IND → ORD Jul 22, 00:16 UTCJul 22, 01:30 UTC1h 14m
2026-07-21 ENY3458 IND → ORD Jul 21, 22:45 UTCJul 21, 23:15 UTC30m
2026-07-21 ENY3908 BNA → ORD Jul 21, 19:05 UTCJul 21, 20:40 UTC1h 35m
2026-07-21 ENY3908 BNA → ORD Jul 21, 18:56 UTCJul 21, 20:40 UTC1h 44m
2026-07-21 ENY3891 - Jul 21, 15:55 UTCJul 21, 17:30 UTC1h 35m
2026-07-21 ENY4277 RAP → DFW Jul 21, 12:30 UTCJul 21, 14:24 UTC1h 54m
2026-07-21 ENY4277 - Jul 21, 01:25 UTCJul 21, 14:30 UTC13h 5m
2026-07-20 ENY3969 - Jul 20, 22:50 UTCJul 20, 23:35 UTC45m
2026-07-20 ENY3969 - Jul 20, 21:05 UTCJul 20, 21:45 UTC40m
2026-07-20 ENY3371 ABQ → DFW Jul 20, 18:20 UTCJul 20, 19:55 UTC1h 35m
2026-07-20 ENY3371 - Jul 20, 15:45 UTCJul 20, 17:05 UTC1h 20m
2026-07-20 ENY4290 MSY → MIA Jul 20, 12:45 UTCJul 20, 14:15 UTC1h 30m
2026-07-20 ENY4290 MSY → MIA Jul 20, 12:40 UTCJul 20, 14:11 UTC1h 31m
2026-07-20 ENY4291 - Jul 20, 01:05 UTCJul 20, 02:40 UTC1h 35m

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 N290NN page for operator, model, and routing details .

Mode-S A2F6B3 frequently asked

What is Mode-S code A2F6B3?
A2F6B3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N290NN.
Where is Mode-S A2F6B3 registered?
Mode-S code A2F6B3 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 A2F6B3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2F6B3, octal 50573263, decimal 10,679,987.
What flights does A2F6B3 operate?
Mode-S A2F6B3 has broadcast 20 distinct callsigns, including ENY3498, ENY4146, ENY3458, ENY3451, ENY4122.