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sensors Mode-S transponder

A1933C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N200NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A1933C
Octal
50311474
Decimal
10,588,988
Country
US
Tail
N200NN
Type
E75L
No current signal · last broadcast Jul 26, 22:25 UTC
Flights observed
712
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 22:25 UTC

Last known position

Most recent position reported by Mode-S A1933C.

Country allocation

The ICAO 24-bit address A1933C 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
ENY3980 - 8 2026-07-09
ENY3941 Envoy Air 7 2026-06-11
ENY3580 Envoy Air 7 2026-06-15
ENY4192 Envoy Air 6 2026-05-02
ENY4101 Envoy Air 6 2026-05-01
ENY4009 - 6 2026-07-17
ENY3964 Envoy Air 6 2026-06-11
ENY3862 - 6 2026-07-18
ENY3679 Envoy Air 6 2026-06-04
ENY3558 - 6 2026-06-28
ENY3539 - 6 2026-06-18
ENY3485 Envoy Air 6 2026-07-26
ENY3470 Envoy Air 6 2026-07-20
ENY3435 - 6 2026-07-07
ENY3430 - 6 2026-07-08
ENY3420 Envoy Air 6 2026-05-30
ENY4317 Envoy Air 5 2026-05-30
ENY4163 - 5 2026-07-07
ENY4127 Envoy Air 5 2026-05-10
ENY4104 - 5 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3485 SDF → DFW Jul 26, 21:25 UTCJul 26, 22:25 UTC1h 0m
2026-07-26 ENY3485 SDF → DFW Jul 26, 19:30 UTCJul 26, 20:25 UTC55m
2026-07-26 ENY3731 ORD → CLE Jul 26, 17:40 UTCJul 26, 18:15 UTC35m
2026-07-26 ENY3731 ORD → CLE Jul 26, 16:00 UTCJul 26, 16:45 UTC45m
2026-07-26 ENY3532 RAP → DFW Jul 26, 02:05 UTCJul 26, 03:50 UTC1h 45m
2026-07-25 ENY3532 RAP → DFW Jul 25, 23:10 UTCJul 26, 01:00 UTC1h 50m
2026-07-25 ENY3849 AVP → ORD Jul 25, 16:20 UTCJul 25, 21:00 UTC4h 40m
2026-07-25 ENY4290 MSY → MIA Jul 25, 12:45 UTCJul 25, 14:20 UTC1h 35m
2026-07-25 ENY4291 ORD → FCA Jul 25, 01:05 UTCJul 25, 02:40 UTC1h 35m
2026-07-24 ENY3697 MHK → DFW Jul 24, 22:00 UTCJul 24, 23:45 UTC1h 45m
2026-07-24 ENY3875 DFW → SJT Jul 24, 19:30 UTCJul 24, 21:05 UTC1h 35m
2026-07-24 ENY4010 BOS → ORD Jul 24, 17:15 UTCJul 24, 18:20 UTC1h 5m
2026-07-24 ENY4010 BOS → ORD Jul 24, 17:07 UTCJul 24, 18:19 UTC1h 12m
2026-07-24 ENY4010 BOS → ORD Jul 24, 15:00 UTCJul 24, 16:10 UTC1h 10m
2026-07-24 ENY3673 ATW → DFW Jul 24, 11:05 UTCJul 24, 13:25 UTC2h 20m
2026-07-24 ENY4188 DFW → ATW Jul 24, 01:55 UTCJul 24, 04:00 UTC2h 5m
2026-07-24 ENY4188 DFW → ATW Jul 24, 01:53 UTCJul 24, 04:02 UTC2h 9m
2026-07-23 ENY3603 ORD → CVG Jul 23, 23:40 UTCJul 24, 00:40 UTC1h 0m
2026-07-23 ENY3603 ORD → CVG Jul 23, 23:31 UTCJul 24, 00:41 UTC1h 10m
2026-07-23 ENY3603 ORD → CVG Jul 23, 21:30 UTCJul 23, 22:20 UTC50m
2026-07-23 ENY4110 GGT → MIA Jul 23, 19:15 UTCJul 23, 20:15 UTC1h 0m
2026-07-23 ENY4110 GGT → MIA Jul 23, 17:05 UTCJul 23, 18:00 UTC55m
2026-07-23 ENY3700 PIA → ORD Jul 23, 14:35 UTCJul 23, 15:50 UTC1h 15m
2026-07-23 ENY3700 PIA → ORD Jul 23, 12:30 UTCJul 23, 13:40 UTC1h 10m
2026-07-23 ENY3393 RDU → ORD Jul 23, 10:15 UTCJul 23, 10:45 UTC30m
2026-07-23 ENY3393 RDU → ORD Jul 23, 10:14 UTCJul 23, 10:39 UTC25m
2026-07-23 ENY3349 STS → PHX Jul 23, 04:10 UTCJul 23, 04:35 UTC25m
2026-07-23 ENY3349 STS → PHX Jul 23, 04:07 UTCJul 23, 04:29 UTC22m
2026-07-22 ENY3532 RAP → DFW Jul 22, 23:50 UTCJul 23, 01:45 UTC1h 55m
2026-07-22 ENY3532 RAP → DFW Jul 22, 21:00 UTCJul 22, 22:40 UTC1h 40m
2026-07-22 ENY3536 - Jul 22, 19:15 UTCJul 22, 19:45 UTC30m
2026-07-22 ENY3536 - Jul 22, 17:50 UTCJul 22, 18:15 UTC25m
2026-07-22 ENY3544 ORD → CMI Jul 22, 01:25 UTCJul 22, 03:00 UTC1h 35m
2026-07-22 ENY3544 ORD → CMI Jul 22, 01:21 UTCJul 22, 03:10 UTC1h 49m
2026-07-21 ENY3455 - Jul 21, 17:05 UTCJul 21, 17:45 UTC40m
2026-07-21 ENY3455 - Jul 21, 15:10 UTCJul 21, 15:45 UTC35m
2026-07-21 ENY3894 CVG → ORD Jul 21, 13:10 UTCJul 21, 14:05 UTC55m
2026-07-21 ENY3894 CVG → ORD Jul 21, 13:05 UTCJul 21, 14:03 UTC58m
2026-07-20 ENY3408 MEM → ORD Jul 20, 22:35 UTCJul 21, 00:25 UTC1h 49m
2026-07-20 ENY3470 MDT → ORD Jul 20, 19:50 UTCJul 20, 21:25 UTC1h 35m
2026-07-20 ENY3470 MDT → ORD Jul 20, 19:48 UTCJul 20, 21:20 UTC1h 32m
2026-07-20 ENY3470 MDT → ORD Jul 20, 16:45 UTCJul 20, 18:20 UTC1h 35m
2026-07-20 ENY4106 ORD → BOS Jul 20, 13:45 UTCJul 20, 15:35 UTC1h 50m
2026-07-20 ENY3445 - Jul 20, 11:20 UTCJul 20, 11:55 UTC35m
2026-07-20 ENY3699 - Jul 20, 04:50 UTCJul 20, 05:25 UTC35m
2026-07-19 ENY4164 ORF → ORD Jul 19, 23:15 UTCJul 20, 01:10 UTC1h 55m
2026-07-19 ENY4164 - Jul 19, 20:25 UTCJul 19, 22:10 UTC1h 45m
2026-07-19 ENY4153 - Jul 19, 16:50 UTCJul 19, 18:55 UTC2h 5m
2026-07-19 ENY4153 VPS → ORD Jul 19, 16:46 UTCJul 19, 18:52 UTC2h 6m
2026-07-19 ENY4153 - Jul 19, 13:50 UTCJul 19, 15:35 UTC1h 45m

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 N200NN page for operator, model, and routing details .

Mode-S A1933C frequently asked

What is Mode-S code A1933C?
A1933C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N200NN.
Where is Mode-S A1933C registered?
Mode-S code A1933C 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 A1933C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1933C, octal 50311474, decimal 10,588,988.
What flights does A1933C operate?
Mode-S A1933C has broadcast 20 distinct callsigns, including ENY3980, ENY3941, ENY3580, ENY4192, ENY4101.