Apparatus

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sensors Mode-S transponder

A2DDAC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N284JN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A2DDAC
Octal
50556654
Decimal
10,673,580
Country
US
Tail
N284JN
Type
E75L
No current signal · last broadcast Jul 26, 21:45 UTC
Flights observed
719
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:45 UTC

Last known position

Most recent position reported by Mode-S A2DDAC.

Country allocation

The ICAO 24-bit address A2DDAC 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
ENY3453 - 10 2026-07-21
ENY3978 - 8 2026-07-14
ENY4246 Envoy Air 7 2026-04-21
ENY4060 Envoy Air 7 2026-05-28
ENY3986 Envoy Air 7 2026-07-25
ENY3517 - 7 2026-07-11
ENY3560 Envoy Air 6 2026-06-14
ENY3558 - 6 2026-07-14
ENY3427 - 6 2026-07-10
ENY3406 Envoy Air 6 2026-07-22
ENY4300 - 5 2026-07-13
ENY4235 Envoy Air 5 2026-05-10
ENY4203 Envoy Air 5 2026-05-16
ENY4178 Envoy Air 5 2026-06-15
ENY4130 Envoy Air 5 2026-05-03
ENY4087 Envoy Air 5 2026-05-28
ENY4007 Envoy Air 5 2026-07-04
ENY3994 Envoy Air 5 2026-07-24
ENY3819 Envoy Air 5 2026-07-18
ENY3605 - 5 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3969 DCA → CHS Jul 26, 21:05 UTCJul 26, 21:45 UTC40m
2026-07-26 ENY3371 ORD → CVG Jul 26, 18:15 UTCJul 26, 19:35 UTC1h 20m
2026-07-26 ENY3371 ORD → CVG Jul 26, 15:45 UTCJul 26, 17:05 UTC1h 20m
2026-07-26 ENY3343 DFW → ELP Jul 26, 13:40 UTCJul 26, 14:35 UTC55m
2026-07-26 ENY3343 DFW → ELP Jul 26, 13:36 UTCJul 26, 14:31 UTC55m
2026-07-26 ENY3541 HSV → ORD Jul 26, 01:45 UTCJul 26, 02:30 UTC45m
2026-07-26 ENY3541 HSV → ORD Jul 26, 01:42 UTCJul 26, 02:28 UTC46m
2026-07-25 ENY4145 IND → MIA Jul 25, 23:25 UTCJul 26, 00:10 UTC45m
2026-07-25 ENY4145 IND → MIA Jul 25, 21:25 UTCJul 25, 22:00 UTC35m
2026-07-25 ENY3986 HRL → DFW Jul 25, 17:50 UTCJul 25, 19:45 UTC1h 55m
2026-07-25 ENY3986 HRL → DFW Jul 25, 17:44 UTCJul 25, 19:41 UTC1h 57m
2026-07-25 ENY3986 HRL → DFW Jul 25, 14:55 UTCJul 25, 16:50 UTC1h 55m
2026-07-25 ENY3780 BOS → ORD Jul 25, 12:20 UTCJul 25, 13:05 UTC45m
2026-07-25 ENY3510 CMH → DFW Jul 25, 01:15 UTCJul 25, 01:50 UTC35m
2026-07-25 ENY3510 CMH → DFW Jul 25, 01:10 UTCJul 25, 01:59 UTC49m
2026-07-24 ENY4008 PHX → SMF Jul 24, 22:55 UTCJul 24, 23:45 UTC50m
2026-07-24 ENY4008 PHX → SMF Jul 24, 22:50 UTCJul 24, 23:40 UTC50m
2026-07-24 ENY4008 PHX → SMF Jul 24, 21:10 UTCJul 24, 21:45 UTC35m
2026-07-24 ENY3994 DFW → LCH Jul 24, 18:00 UTCJul 24, 19:50 UTC1h 50m
2026-07-24 ENY3994 DFW → LCH Jul 24, 15:20 UTCJul 24, 17:10 UTC1h 50m
2026-07-24 ENY4027 TRC → DFW Jul 24, 01:20 UTCJul 24, 13:55 UTC12h 35m
2026-07-23 ENY3382 MSY → DCA Jul 23, 23:25 UTCJul 24, 00:00 UTC35m
2026-07-23 ENY3382 MSY → DCA Jul 23, 23:21 UTCJul 23, 23:53 UTC32m
2026-07-23 ENY3382 MSY → DCA Jul 23, 22:00 UTCJul 23, 22:20 UTC20m
2026-07-23 ENY3554 CVG → MIA Jul 23, 18:25 UTCJul 23, 20:40 UTC2h 15m
2026-07-23 ENY3554 CVG → MIA Jul 23, 18:22 UTCJul 23, 20:37 UTC2h 15m
2026-07-23 ENY3554 CVG → MIA Jul 23, 15:05 UTCJul 23, 17:05 UTC2h 0m
2026-07-23 ENY3915 CVG → DFW Jul 23, 12:30 UTCJul 23, 13:55 UTC1h 25m
2026-07-23 ENY3459 ORD → FAR Jul 23, 01:30 UTCJul 23, 02:45 UTC1h 15m
2026-07-22 ENY3969 DCA → CHS Jul 22, 23:15 UTCJul 22, 23:50 UTC35m
2026-07-22 ENY3969 DCA → CHS Jul 22, 23:00 UTCJul 22, 23:44 UTC44m
2026-07-22 ENY3969 DCA → CHS Jul 22, 21:20 UTCJul 22, 22:00 UTC40m
2026-07-22 ENY3994 - Jul 22, 17:40 UTCJul 22, 19:35 UTC1h 55m
2026-07-22 ENY3994 LEX → DFW Jul 22, 17:37 UTCJul 22, 19:31 UTC1h 54m
2026-07-22 ENY3994 DFW → LEX Jul 22, 15:05 UTCJul 22, 16:45 UTC1h 40m
2026-07-22 ENY3373 MHK → DFW Jul 22, 11:10 UTCJul 22, 13:15 UTC2h 5m
2026-07-22 ENY3377 BUF → ORD Jul 22, 04:10 UTCJul 22, 05:25 UTC1h 15m
2026-07-22 ENY3406 PIA → DFW Jul 22, 00:05 UTCJul 22, 02:10 UTC2h 5m
2026-07-21 ENY3406 PIA → DFW Jul 21, 21:40 UTCJul 21, 22:55 UTC1h 15m
2026-07-21 ENY3453 - Jul 21, 17:55 UTCJul 21, 19:00 UTC1h 5m
2026-07-21 ENY3453 PVD → ORD Jul 21, 17:50 UTCJul 21, 20:02 UTC2h 12m
2026-07-21 ENY3453 - Jul 21, 14:55 UTCJul 21, 17:00 UTC2h 5m
2026-07-21 ENY3590 RDU → DCA Jul 21, 11:45 UTCJul 21, 13:20 UTC1h 35m
2026-07-21 ENY4281 ORD → TUL Jul 21, 03:40 UTCJul 21, 05:05 UTC1h 25m
2026-07-21 ENY4281 ORD → TUL Jul 21, 03:37 UTCJul 21, 05:06 UTC1h 29m
2026-07-21 ENY3466 - Jul 21, 01:10 UTCJul 21, 02:05 UTC55m
2026-07-21 ENY3466 CLE → ORD Jul 21, 01:06 UTCJul 21, 02:00 UTC54m
2026-07-20 ENY3466 - Jul 20, 23:25 UTCJul 21, 00:15 UTC49m
2026-07-20 ENY3848 LEX → ORD Jul 20, 19:50 UTCJul 20, 21:15 UTC1h 25m
2026-07-20 ENY3848 LEX → ORD Jul 20, 19:48 UTCJul 20, 21:14 UTC1h 26m

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 N284JN page for operator, model, and routing details .

Mode-S A2DDAC frequently asked

What is Mode-S code A2DDAC?
A2DDAC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N284JN.
Where is Mode-S A2DDAC registered?
Mode-S code A2DDAC 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 A2DDAC broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2DDAC, octal 50556654, decimal 10,673,580.
What flights does A2DDAC operate?
Mode-S A2DDAC has broadcast 20 distinct callsigns, including ENY3453, ENY3978, ENY4246, ENY4060, ENY3986.