Apparatus

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sensors Mode-S transponder

A24EF0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N248NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A24EF0
Octal
50447360
Decimal
10,637,040
Country
US
Tail
N248NN
Type
E75L
Broadcasting now · callsign ENY3795 · 16,200 ft
Flights observed
731
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:00 UTC

Current position

A24EF0 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A24EF0 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
ENY4176 Envoy Air 8 2026-05-28
ENY3609 - 8 2026-06-22
ENY4097 - 7 2026-07-13
ENY3721 Envoy Air 7 2026-07-22
ENY3691 - 7 2026-07-17
ENY4187 Envoy Air 6 2026-05-02
ENY4177 - 6 2026-06-19
ENY4171 Envoy Air 6 2026-06-12
ENY3908 Envoy Air 6 2026-06-10
ENY3827 Envoy Air 6 2026-04-24
ENY3547 Envoy Air 6 2026-07-24
ENY3461 - 6 2026-07-20
ENY4334 Envoy Air 5 2026-04-24
ENY4256 Envoy Air 5 2026-05-22
ENY4230 Envoy Air 5 2026-04-30
ENY4165 Envoy Air 5 2026-06-14
ENY4135 Envoy Air 5 2026-06-04
ENY4130 - 5 2026-06-27
ENY4084 - 5 2026-06-28
ENY4071 - 5 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3803 DFW → MSY Jul 26, 21:50 UTCJul 26, 22:00 UTC10m
2026-07-26 ENY4263 DFW → VER Jul 26, 18:05 UTCJul 26, 20:20 UTC2h 15m
2026-07-26 ENY4263 DFW → VER Jul 26, 14:45 UTCJul 26, 16:55 UTC2h 10m
2026-07-26 ENY4027 TRC → DFW Jul 26, 01:20 UTCJul 26, 13:10 UTC11h 51m
2026-07-25 ENY3481 DFW → CHS Jul 25, 22:35 UTCJul 25, 23:40 UTC1h 5m
2026-07-25 ENY3481 DFW → CHS Jul 25, 22:28 UTCJul 25, 23:37 UTC1h 9m
2026-07-25 ENY3481 DFW → CHS Jul 25, 20:20 UTCJul 25, 21:25 UTC1h 5m
2026-07-25 ENY3591 ORD → RDU Jul 25, 17:20 UTCJul 25, 18:05 UTC45m
2026-07-25 ENY3591 ORD → RDU Jul 25, 15:20 UTCJul 25, 16:00 UTC40m
2026-07-25 ENY4027 TRC → DFW Jul 25, 01:40 UTCJul 25, 13:15 UTC11h 35m
2026-07-24 ENY3467 IND → BOS Jul 24, 23:35 UTCJul 25, 00:20 UTC45m
2026-07-24 ENY3467 IND → BOS Jul 24, 22:10 UTCJul 24, 22:40 UTC30m
2026-07-24 ENY3547 MSY → MIA Jul 24, 20:20 UTCJul 24, 20:55 UTC35m
2026-07-24 ENY3547 MSY → MIA Jul 24, 18:55 UTCJul 24, 19:20 UTC25m
2026-07-24 ENY3547 MSY → MIA Jul 24, 18:53 UTCJul 24, 19:19 UTC26m
2026-07-24 ENY3451 DAB → DFW Jul 24, 16:20 UTCJul 24, 18:00 UTC1h 40m
2026-07-24 ENY3451 DAB → DFW Jul 24, 14:00 UTCJul 24, 15:35 UTC1h 35m
2026-07-24 ENY3372 ORD → COU Jul 24, 11:10 UTCJul 24, 12:15 UTC1h 5m
2026-07-24 ENY3589 DFW → LRD Jul 24, 03:50 UTCJul 24, 04:40 UTC50m
2026-07-24 ENY3579 DOM → MIA Jul 24, 00:55 UTCJul 24, 02:35 UTC1h 40m
2026-07-24 ENY3579 DOM → MIA Jul 24, 00:53 UTCJul 24, 02:25 UTC1h 32m
2026-07-23 ENY3579 DOM → MIA Jul 23, 22:45 UTCJul 24, 00:15 UTC1h 30m
2026-07-23 ENY3849 AVP → ORD Jul 23, 17:05 UTCJul 23, 21:20 UTC4h 15m
2026-07-23 ENY3624 - Jul 23, 15:00 UTCJul 23, 16:00 UTC1h 0m
2026-07-23 ENY9868 ORD → MKE Jul 23, 12:45 UTCJul 23, 13:45 UTC1h 0m
2026-07-22 ENY3721 MQT → ORD Jul 22, 20:00 UTCJul 22, 21:05 UTC1h 5m
2026-07-22 ENY3721 MQT → ORD Jul 22, 17:55 UTCJul 22, 19:00 UTC1h 5m
2026-07-22 ENY3495 IND → ORD Jul 22, 14:40 UTCJul 22, 16:10 UTC1h 30m
2026-07-22 ENY3495 IND → ORD Jul 22, 12:15 UTCJul 22, 13:40 UTC1h 25m
2026-07-22 ENY3615 ICT → ORD Jul 22, 04:20 UTCJul 22, 05:00 UTC40m
2026-07-21 ENY3532 - Jul 21, 23:55 UTCJul 22, 01:50 UTC1h 55m
2026-07-21 ENY3532 - Jul 21, 20:50 UTCJul 21, 22:40 UTC1h 50m
2026-07-21 ENY3371 ABQ → DFW Jul 21, 18:25 UTCJul 21, 19:50 UTC1h 25m
2026-07-21 ENY3371 - Jul 21, 15:50 UTCJul 21, 17:10 UTC1h 20m
2026-07-21 ENY3746 - Jul 21, 12:10 UTCJul 21, 14:30 UTC2h 20m
2026-07-21 ENY3937 AVP → ORD Jul 21, 02:30 UTCJul 21, 04:45 UTC2h 15m
2026-07-20 ENY3461 - Jul 20, 23:45 UTCJul 21, 01:15 UTC1h 30m
2026-07-20 ENY3461 DFW → CID Jul 20, 20:40 UTCJul 20, 22:20 UTC1h 40m
2026-07-20 ENY3384 CHS → DCA Jul 20, 18:30 UTCJul 20, 19:15 UTC45m
2026-07-20 ENY3384 CHS → DCA Jul 20, 16:35 UTCJul 20, 17:10 UTC35m
2026-07-20 ENY4100 - Jul 20, 14:05 UTCJul 20, 15:05 UTC1h 0m
2026-07-20 ENY4100 CRP → DFW Jul 20, 14:02 UTCJul 20, 15:00 UTC58m
2026-07-20 ENY4100 - Jul 20, 12:15 UTCJul 20, 13:10 UTC55m
2026-07-20 ENY3654 FAR → ORD Jul 20, 10:15 UTCJul 20, 10:55 UTC40m
2026-07-20 ENY3431 DFW → CLL Jul 20, 05:25 UTCJul 20, 05:55 UTC30m
2026-07-20 ENY3431 DFW → CLL Jul 20, 05:25 UTCJul 20, 05:55 UTC30m
2026-07-20 ENY3417 - Jul 20, 02:15 UTCJul 20, 03:40 UTC1h 25m
2026-07-20 ENY3417 BHM → DFW Jul 20, 02:14 UTCJul 20, 03:42 UTC1h 28m
2026-07-19 ENY3417 - Jul 19, 23:55 UTCJul 20, 01:15 UTC1h 20m
2026-07-19 ENY3840 PIT → DCA Jul 19, 21:05 UTCJul 19, 21:55 UTC50m

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 N248NN page for operator, model, and routing details .

Mode-S A24EF0 frequently asked

What is Mode-S code A24EF0?
A24EF0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N248NN.
Where is Mode-S A24EF0 registered?
Mode-S code A24EF0 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 A24EF0 broadcasting right now?
Yes. Mode-S A24EF0 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A24EF0, octal 50447360, decimal 10,637,040.
What flights does A24EF0 operate?
Mode-S A24EF0 has broadcast 20 distinct callsigns, including ENY4176, ENY3609, ENY4097, ENY3721, ENY3691.