Apparatus

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sensors Mode-S transponder

A32F1B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N304KM · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A32F1B
Octal
50627433
Decimal
10,694,427
Country
US
Tail
N304KM
Type
E75L
No current signal · last broadcast Jul 26, 21:40 UTC
Flights observed
782
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:40 UTC

Last known position

Most recent position reported by Mode-S A32F1B.

Country allocation

The ICAO 24-bit address A32F1B 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
ENY3469 - 10 2026-07-13
ENY4114 Envoy Air 8 2026-06-13
ENY3633 - 8 2026-07-21
ENY4187 Envoy Air 7 2026-06-07
ENY4152 - 7 2026-07-15
ENY3770 Envoy Air 7 2026-05-30
ENY3653 - 7 2026-06-23
ENY4219 Envoy Air 6 2026-05-05
ENY3969 - 6 2026-07-17
ENY3938 - 6 2026-07-15
ENY3720 Envoy Air 6 2026-06-14
ENY3697 Envoy Air 6 2026-07-01
ENY3688 Envoy Air 6 2026-05-02
ENY3651 Envoy Air 6 2026-07-26
ENY4110 - 5 2026-07-12
ENY4099 Envoy Air 5 2026-06-04
ENY4097 Envoy Air 5 2026-07-02
ENY4037 Envoy Air 5 2026-06-08
ENY3994 - 5 2026-07-17
ENY3890 - 5 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3726 AZO → ORD Jul 26, 20:55 UTCJul 26, 21:35 UTC40m
2026-07-26 ENY3726 AZO → ORD Jul 26, 19:05 UTCJul 26, 19:40 UTC35m
2026-07-26 ENY3651 DCA → ALB Jul 26, 16:55 UTCJul 26, 17:50 UTC55m
2026-07-26 ENY3651 DCA → ALB Jul 26, 15:05 UTCJul 26, 15:50 UTC45m
2026-07-26 ENY3424 ELP → AUS Jul 26, 12:05 UTCJul 26, 13:05 UTC1h 0m
2026-07-26 ENY4092 DFW → SGF Jul 26, 01:40 UTCJul 26, 02:35 UTC55m
2026-07-26 ENY4092 DFW → SGF Jul 26, 01:38 UTCJul 26, 02:39 UTC1h 1m
2026-07-25 ENY3365 CID → ORD Jul 25, 23:15 UTCJul 25, 23:50 UTC35m
2026-07-25 ENY3365 CID → ORD Jul 25, 23:09 UTCJul 25, 23:45 UTC36m
2026-07-25 ENY3365 CID → ORD Jul 25, 21:50 UTCJul 25, 22:10 UTC20m
2026-07-25 ENY4130 CLE → ORD Jul 25, 19:50 UTCJul 25, 20:35 UTC45m
2026-07-25 ENY4130 CLE → ORD Jul 25, 18:10 UTCJul 25, 18:45 UTC35m
2026-07-25 ENY3968 MSY → DFW Jul 25, 15:55 UTCJul 25, 16:45 UTC50m
2026-07-25 ENY3968 MSY → DFW Jul 25, 14:20 UTCJul 25, 15:00 UTC40m
2026-07-25 ENY4119 GRR → DFW Jul 25, 12:00 UTCJul 25, 12:50 UTC50m
2026-07-25 ENY3378 ORD → CLE Jul 25, 02:20 UTCJul 25, 03:05 UTC45m
2026-07-24 ENY3381 BOS → CMH Jul 24, 23:35 UTCJul 25, 01:10 UTC1h 35m
2026-07-24 ENY3381 BOS → CMH Jul 24, 23:32 UTCJul 25, 01:05 UTC1h 33m
2026-07-24 ENY3381 BOS → CMH Jul 24, 21:15 UTCJul 24, 22:40 UTC1h 25m
2026-07-24 ENY4095 BIL → DFW Jul 24, 19:05 UTCJul 24, 19:50 UTC45m
2026-07-24 ENY4095 BIL → DFW Jul 24, 17:30 UTCJul 24, 18:05 UTC35m
2026-07-24 ENY3366 MSN → ORD Jul 24, 15:35 UTCJul 24, 16:10 UTC35m
2026-07-24 ENY3366 MSN → ORD Jul 24, 14:05 UTCJul 24, 14:25 UTC20m
2026-07-24 ENY3956 ORD → CVG Jul 24, 11:15 UTCJul 24, 12:20 UTC1h 5m
2026-07-24 ENY3928 ORD → RDU Jul 24, 03:50 UTCJul 24, 04:45 UTC55m
2026-07-23 ENY3964 SAV → DFW Jul 23, 23:25 UTCJul 24, 00:30 UTC1h 5m
2026-07-23 ENY3964 SAV → DFW Jul 23, 23:24 UTCJul 24, 00:28 UTC1h 4m
2026-07-23 ENY3964 SAV → DFW Jul 23, 21:30 UTCJul 23, 22:25 UTC55m
2026-07-23 ENY4202 ORD → STL Jul 23, 18:45 UTCJul 23, 20:10 UTC1h 25m
2026-07-23 ENY4202 ORD → STL Jul 23, 16:25 UTCJul 23, 17:40 UTC1h 15m
2026-07-23 ENY3401 STS → DFW Jul 23, 14:10 UTCJul 23, 14:55 UTC45m
2026-07-23 ENY3401 STS → DFW Jul 23, 12:35 UTCJul 23, 13:15 UTC40m
2026-07-23 ENY3394 HSV → DFW Jul 23, 10:15 UTCJul 23, 11:35 UTC1h 20m
2026-07-23 ENY3394 HSV → DFW Jul 23, 10:09 UTCJul 23, 11:31 UTC1h 22m
2026-07-23 ENY9873 ATL → ORD Jul 23, 04:50 UTCJul 23, 05:55 UTC1h 5m
2026-07-23 ENY4017 CLT → SGF Jul 23, 00:35 UTCJul 23, 02:10 UTC1h 35m
2026-07-22 ENY3560 ORD → RDU Jul 22, 21:00 UTCJul 22, 21:45 UTC45m
2026-07-22 ENY3560 ORD → RDU Jul 22, 19:35 UTCJul 22, 20:05 UTC30m
2026-07-22 ENY3844 ORD → EYW Jul 22, 13:10 UTCJul 22, 17:40 UTC4h 30m
2026-07-22 ENY3940 - Jul 22, 11:10 UTCJul 22, 11:45 UTC35m
2026-07-22 ENY3940 HSV → CLT Jul 22, 10:49 UTCJul 22, 11:41 UTC52m
2026-07-22 ENY3917 BRO → DFW Jul 22, 03:10 UTCJul 22, 04:05 UTC55m
2026-07-22 ENY3917 BRO → DFW Jul 22, 03:08 UTCJul 22, 04:00 UTC52m
2026-07-21 ENY3633 - Jul 21, 23:55 UTCJul 22, 01:20 UTC1h 25m
2026-07-21 ENY3633 - Jul 21, 21:20 UTCJul 21, 22:45 UTC1h 25m
2026-07-21 ENY3562 CWA → ORD Jul 21, 18:50 UTCJul 21, 19:35 UTC45m
2026-07-21 ENY3562 CWA → ORD Jul 21, 17:10 UTCJul 21, 17:50 UTC40m
2026-07-21 ENY3871 BOS → ORD Jul 21, 14:05 UTCJul 21, 15:45 UTC1h 40m
2026-07-21 ENY3693 DFW → XNA Jul 21, 03:45 UTCJul 21, 04:35 UTC50m
2026-07-21 ENY3727 OKC → DFW Jul 21, 01:30 UTCJul 21, 02:10 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 N304KM page for operator, model, and routing details .

Mode-S A32F1B frequently asked

What is Mode-S code A32F1B?
A32F1B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N304KM.
Where is Mode-S A32F1B registered?
Mode-S code A32F1B 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 A32F1B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A32F1B, octal 50627433, decimal 10,694,427.
What flights does A32F1B operate?
Mode-S A32F1B has broadcast 20 distinct callsigns, including ENY3469, ENY4114, ENY3633, ENY4187, ENY4152.