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sensors Mode-S transponder

A1F884

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N226NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A1F884
Octal
50374204
Decimal
10,614,916
Country
US
Tail
N226NN
Type
E75L
No current signal · last broadcast Jul 26, 21:15 UTC
Flights observed
758
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:15 UTC

Last known position

Most recent position reported by Mode-S A1F884.

Country allocation

The ICAO 24-bit address A1F884 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
ENY4099 Envoy Air 10 2026-07-21
ENY3678 - 8 2026-06-16
ENY3464 - 8 2026-07-19
ENY4256 - 7 2026-06-27
ENY3819 - 7 2026-07-12
ENY3430 - 7 2026-06-23
ENY4153 Envoy Air 6 2026-05-17
ENY3994 Envoy Air 6 2026-07-06
ENY3967 Envoy Air 6 2026-07-24
ENY3642 Envoy Air 6 2026-05-17
ENY3575 - 6 2026-06-15
ENY3550 - 6 2026-07-09
ENY3382 - 6 2026-07-04
ENY4216 Envoy Air 5 2026-05-03
ENY4157 Envoy Air 5 2026-05-08
ENY4104 - 5 2026-06-28
ENY4063 - 5 2026-06-17
ENY4035 - 5 2026-07-20
ENY4033 - 5 2026-07-13
ENY3923 Envoy Air 5 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY3650 ORD → SYR Jul 26, 17:45 UTCJul 26, 21:05 UTC3h 20m
2026-07-26 ENY3879 MLI → DFW Jul 26, 13:10 UTCJul 26, 15:50 UTC2h 40m
2026-07-26 ENY3923 DFW → MID Jul 26, 03:25 UTCJul 26, 06:10 UTC2h 45m
2026-07-26 ENY3923 DFW → MID Jul 26, 03:23 UTCJul 26, 06:09 UTC2h 46m
2026-07-26 ENY4114 - Jul 26, 01:30 UTCJul 26, 02:00 UTC30m
2026-07-26 ENY4114 - Jul 26, 01:09 UTCJul 26, 02:08 UTC59m
2026-07-25 ENY4114 - Jul 25, 20:50 UTCJul 25, 23:50 UTC3h 0m
2026-07-25 ENY4114 - Jul 25, 17:40 UTCJul 25, 19:45 UTC2h 5m
2026-07-25 ENY3335 - Jul 25, 13:40 UTCJul 25, 16:00 UTC2h 20m
2026-07-25 ENY3335 LIT → PHX Jul 25, 13:29 UTCJul 25, 15:52 UTC2h 23m
2026-07-25 ENY3362 PHX → STS Jul 25, 03:20 UTCJul 25, 03:55 UTC35m
2026-07-25 ENY3417 ORD → COU Jul 25, 00:20 UTCJul 25, 01:50 UTC1h 30m
2026-07-24 ENY3417 ORD → COU Jul 24, 21:50 UTCJul 24, 23:05 UTC1h 15m
2026-07-24 ENY3967 DFW → DGO Jul 24, 19:30 UTCJul 24, 20:30 UTC1h 0m
2026-07-24 ENY3967 DFW → DGO Jul 24, 17:40 UTCJul 24, 18:40 UTC1h 0m
2026-07-24 ENY3529 DFW → HOU Jul 24, 15:40 UTCJul 24, 16:15 UTC35m
2026-07-24 ENY3529 DFW → HOU Jul 24, 15:35 UTCJul 24, 16:14 UTC39m
2026-07-24 ENY3529 DFW → HOU Jul 24, 13:30 UTCJul 24, 14:05 UTC35m
2026-07-24 ENY4067 DFW → STS Jul 24, 11:01 UTCJul 24, 12:08 UTC1h 7m
2026-07-24 ENY4061 MIA → TYS Jul 24, 02:55 UTCJul 24, 03:55 UTC1h 0m
2026-07-24 ENY3388 CLE → MIA Jul 24, 00:25 UTCJul 24, 01:10 UTC45m
2026-07-23 ENY3388 CLE → MIA Jul 23, 22:25 UTCJul 23, 23:10 UTC45m
2026-07-23 ENY3721 MQT → ORD Jul 23, 19:55 UTCJul 23, 21:00 UTC1h 5m
2026-07-23 ENY3721 MQT → ORD Jul 23, 17:55 UTCJul 23, 19:05 UTC1h 10m
2026-07-23 ENY3616 DFW → HRL Jul 23, 15:35 UTCJul 23, 16:25 UTC50m
2026-07-23 ENY3616 DFW → HRL Jul 23, 15:29 UTCJul 23, 16:28 UTC59m
2026-07-23 ENY3616 DFW → HRL Jul 23, 13:45 UTCJul 23, 14:30 UTC45m
2026-07-23 ENY4067 DFW → STS Jul 23, 11:15 UTCJul 23, 12:20 UTC1h 5m
2026-07-23 ENY4061 MIA → TYS Jul 23, 02:50 UTCJul 23, 03:50 UTC1h 0m
2026-07-23 ENY3729 CMH → MIA Jul 23, 00:30 UTCJul 23, 01:10 UTC40m
2026-07-23 ENY3729 CMH → MIA Jul 23, 00:26 UTCJul 23, 01:06 UTC40m
2026-07-22 ENY3729 CMH → MIA Jul 22, 23:10 UTCJul 22, 23:45 UTC35m
2026-07-22 ENY3764 BGR → ORD Jul 22, 18:55 UTCJul 22, 20:40 UTC1h 45m
2026-07-22 ENY3764 BGR → ORD Jul 22, 18:48 UTCJul 22, 20:43 UTC1h 55m
2026-07-22 ENY4076 - Jul 22, 15:50 UTCJul 22, 17:25 UTC1h 35m
2026-07-22 ENY3773 RDM → PHX Jul 22, 12:40 UTCJul 22, 14:50 UTC2h 10m
2026-07-22 ENY3773 RDM → PHX Jul 22, 12:38 UTCJul 22, 14:45 UTC2h 7m
2026-07-22 ENY3597 RDU → ORD Jul 22, 03:40 UTCJul 22, 05:25 UTC1h 45m
2026-07-21 ENY3586 EVV → ORD Jul 21, 23:50 UTCJul 22, 02:30 UTC2h 40m
2026-07-21 ENY3586 EVV → ORD Jul 21, 19:55 UTCJul 21, 23:00 UTC3h 5m
2026-07-21 ENY4099 BHM → ORD Jul 21, 17:05 UTCJul 21, 18:35 UTC1h 30m
2026-07-21 ENY4099 BHM → ORD Jul 21, 14:30 UTCJul 21, 16:00 UTC1h 30m
2026-07-21 ENY3984 - Jul 21, 11:30 UTCJul 21, 13:10 UTC1h 40m
2026-07-21 ENY3911 - Jul 21, 03:00 UTCJul 21, 05:00 UTC2h 0m
2026-07-20 ENY3440 CMI → ORD Jul 20, 22:35 UTCJul 21, 01:40 UTC3h 4m
2026-07-20 ENY3440 CMI → ORD Jul 20, 19:05 UTCJul 20, 21:25 UTC2h 20m
2026-07-20 ENY3992 BUR → PHX Jul 20, 16:25 UTCJul 20, 17:40 UTC1h 15m
2026-07-20 ENY3992 - Jul 20, 14:30 UTCJul 20, 15:30 UTC1h 0m
2026-07-20 ENY4035 SEA → PHX Jul 20, 01:30 UTCJul 20, 03:55 UTC2h 25m
2026-07-20 ENY4035 SEA → PHX Jul 20, 01:26 UTCJul 20, 03:50 UTC2h 24m

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 N226NN page for operator, model, and routing details .

Mode-S A1F884 frequently asked

What is Mode-S code A1F884?
A1F884 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N226NN.
Where is Mode-S A1F884 registered?
Mode-S code A1F884 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 A1F884 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1F884, octal 50374204, decimal 10,614,916.
What flights does A1F884 operate?
Mode-S A1F884 has broadcast 20 distinct callsigns, including ENY4099, ENY3678, ENY3464, ENY4256, ENY3819.