Apparatus

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sensors Mode-S transponder

A1E9AC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N222NS · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A1E9AC
Octal
50364654
Decimal
10,611,116
Country
US
Tail
N222NS
Type
E75L
No current signal · last broadcast 2h ago
Flights observed
677
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A1E9AC.

Country allocation

The ICAO 24-bit address A1E9AC 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
ENY3535 - 14 2026-07-01
ENY4178 - 12 2026-07-01
ENY4146 - 12 2026-07-03
ENY3422 - 9 2026-07-03
ENY4224 Envoy Air 8 2026-05-05
ENY4083 - 8 2026-07-01
ENY3692 - 8 2026-06-28
ENY3691 - 8 2026-06-21
ENY3441 - 8 2026-06-20
ENY4006 Envoy Air 7 2026-07-03
ENY3990 - 7 2026-07-03
ENY3978 - 7 2026-07-07
ENY3844 - 7 2026-06-27
ENY3821 - 7 2026-07-13
ENY3563 Envoy Air 7 2026-06-27
ENY3560 Envoy Air 7 2026-06-11
ENY4031 Envoy Air 6 2026-05-01
ENY4017 - 6 2026-07-01
ENY3609 - 6 2026-07-14
ENY3519 Envoy Air 6 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ENY3605 - Jul 14, 23:50 UTCJul 15, 00:45 UTC55m
2026-07-14 ENY3605 JAX → MIA Jul 14, 23:46 UTCJul 15, 00:45 UTC59m
2026-07-14 ENY3605 - Jul 14, 21:55 UTCJul 14, 22:55 UTC59m
2026-07-14 ENY4020 - Jul 14, 18:35 UTCJul 14, 18:55 UTC20m
2026-07-14 ENY4020 - Jul 14, 16:30 UTCJul 14, 16:50 UTC20m
2026-07-14 ENY3609 - Jul 14, 14:15 UTCJul 14, 15:10 UTC55m
2026-07-14 ENY3609 JAX → MIA Jul 14, 14:12 UTCJul 14, 15:09 UTC57m
2026-07-14 ENY3609 - Jul 14, 12:10 UTCJul 14, 13:05 UTC55m
2026-07-14 ENY4139 - Jul 14, 10:35 UTCJul 14, 11:10 UTC35m
2026-07-14 ENY4071 - Jul 14, 03:35 UTCJul 14, 04:35 UTC1h 0m
2026-07-13 ENY4082 - Jul 13, 23:40 UTCJul 14, 01:20 UTC1h 40m
2026-07-13 ENY4082 GSO → MIA Jul 13, 23:37 UTCJul 14, 01:19 UTC1h 42m
2026-07-13 ENY3931 - Jul 13, 20:55 UTCJul 13, 22:45 UTC1h 50m
2026-07-13 ENY3355 - Jul 13, 18:35 UTCJul 13, 18:55 UTC20m
2026-07-13 ENY3355 - Jul 13, 16:30 UTCJul 13, 16:50 UTC20m
2026-07-13 ENY3609 - Jul 13, 14:20 UTCJul 13, 15:20 UTC1h 0m
2026-07-13 ENY3609 JAX → MIA Jul 13, 14:18 UTCJul 13, 15:16 UTC58m
2026-07-13 ENY3609 - Jul 13, 12:20 UTCJul 13, 13:15 UTC55m
2026-07-13 ENY3877 - Jul 13, 10:20 UTCJul 13, 11:10 UTC50m
2026-07-13 ENY3876 - Jul 13, 03:45 UTCJul 13, 04:30 UTC45m
2026-07-13 ENY3821 - Jul 13, 01:50 UTCJul 13, 02:50 UTC1h 0m
2026-07-13 ENY3821 TLH → MIA Jul 13, 01:48 UTCJul 13, 02:50 UTC1h 2m
2026-07-12 ENY3821 - Jul 12, 23:45 UTCJul 13, 01:01 UTC1h 15m
2026-07-12 ENY4175 - Jul 12, 14:15 UTCJul 12, 20:20 UTC6h 5m
2026-07-12 ENY3405 - Jul 12, 10:55 UTCJul 12, 12:30 UTC1h 35m
2026-07-12 ENY4042 - Jul 12, 00:50 UTCJul 12, 02:20 UTC1h 30m
2026-07-12 ENY4042 MIA → AVL Jul 12, 00:50 UTCJul 12, 02:19 UTC1h 29m
2026-07-11 ENY3774 - Jul 11, 16:50 UTCJul 11, 23:55 UTC7h 5m
2026-07-11 ENY4039 - Jul 11, 14:35 UTCJul 11, 15:05 UTC30m
2026-07-11 ENY4039 - Jul 11, 12:45 UTCJul 11, 13:05 UTC20m
2026-07-11 ENY3877 - Jul 11, 10:05 UTCJul 11, 10:50 UTC45m
2026-07-11 ENY3877 GNV → MIA Jul 11, 10:00 UTCJul 11, 10:50 UTC50m
2026-07-11 ENY3876 - Jul 11, 03:45 UTCJul 11, 04:30 UTC45m
2026-07-11 ENY3821 - Jul 11, 01:05 UTCJul 11, 02:05 UTC1h 0m
2026-07-10 ENY3821 - Jul 10, 23:00 UTCJul 11, 00:20 UTC1h 20m
2026-07-10 ENY4180 - Jul 10, 18:20 UTCJul 10, 21:00 UTC2h 40m
2026-07-10 ENY4180 MCI → MIA Jul 10, 18:15 UTCJul 10, 21:09 UTC2h 54m
2026-07-10 ENY4180 - Jul 10, 14:25 UTCJul 10, 16:55 UTC2h 30m
2026-07-10 ENY3638 - Jul 10, 10:40 UTCJul 10, 12:45 UTC2h 5m
2026-07-10 ENY4115 - Jul 10, 00:00 UTCJul 10, 02:05 UTC2h 5m
2026-07-09 ENY4072 - Jul 9, 20:25 UTCJul 9, 21:45 UTC1h 20m
2026-07-09 ENY4072 CZM → MIA Jul 9, 20:23 UTCJul 9, 21:41 UTC1h 18m
2026-07-09 ENY4072 - Jul 9, 18:00 UTCJul 9, 19:15 UTC1h 15m
2026-07-09 ENY3515 - Jul 9, 15:45 UTCJul 9, 16:10 UTC25m
2026-07-09 ENY3515 - Jul 9, 14:25 UTCJul 9, 14:45 UTC20m
2026-07-09 ENY3501 - Jul 9, 11:15 UTCJul 9, 12:55 UTC1h 40m
2026-07-09 ENY3501 RDU → MIA Jul 9, 11:13 UTCJul 9, 12:55 UTC1h 42m
2026-07-09 ENY3474 - Jul 9, 00:55 UTCJul 9, 02:35 UTC1h 40m
2026-07-08 ENY3566 - Jul 8, 22:00 UTCJul 8, 23:00 UTC1h 0m
2026-07-08 ENY3566 - Jul 8, 20:00 UTCJul 8, 21:05 UTC1h 5m

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 N222NS page for operator, model, and routing details .

Mode-S A1E9AC frequently asked

What is Mode-S code A1E9AC?
A1E9AC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N222NS.
Where is Mode-S A1E9AC registered?
Mode-S code A1E9AC 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 A1E9AC broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1E9AC, octal 50364654, decimal 10,611,116.
What flights does A1E9AC operate?
Mode-S A1E9AC has broadcast 20 distinct callsigns, including ENY3535, ENY4178, ENY4146, ENY3422, ENY4224.