Apparatus

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sensors Mode-S transponder

A2BA48

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N275NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A2BA48
Octal
50535110
Decimal
10,664,520
Country
US
Tail
N275NN
Type
E75L
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
757
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S A2BA48.

Country allocation

The ICAO 24-bit address A2BA48 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
ENY4133 - 8 2026-07-11
ENY3652 Envoy Air 8 2026-07-18
ENY3653 Envoy Air 7 2026-06-07
ENY3591 Envoy Air 7 2026-07-24
ENY3502 - 7 2026-07-20
ENY4171 Envoy Air 6 2026-05-07
ENY3768 Envoy Air 6 2026-05-02
ENY3560 - 6 2026-06-28
ENY3539 Envoy Air 6 2026-07-26
ENY3527 Envoy Air 6 2026-05-02
ENY3526 - 6 2026-07-16
ENY3439 Envoy Air 6 2026-05-16
ENY4220 Envoy Air 5 2026-05-11
ENY4176 Envoy Air 5 2026-05-27
ENY4113 - 5 2026-07-20
ENY4083 - 5 2026-06-29
ENY3980 - 5 2026-06-21
ENY3938 Envoy Air 5 2026-07-20
ENY3844 - 5 2026-06-28
ENY3826 - 5 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 ENY4008 PHX → SMF Jul 26, 21:00 UTCJul 26, 21:35 UTC35m
2026-07-26 ENY3539 ORD → ICT Jul 26, 16:35 UTCJul 26, 17:45 UTC1h 10m
2026-07-26 ENY3539 ORD → ICT Jul 26, 14:25 UTCJul 26, 15:35 UTC1h 10m
2026-07-26 ENY3867 BWI → ORD Jul 26, 12:10 UTCJul 26, 13:10 UTC1h 0m
2026-07-26 ENY3868 DCA → CVG Jul 26, 01:30 UTCJul 26, 02:20 UTC50m
2026-07-26 ENY3868 DCA → CVG Jul 26, 01:29 UTCJul 26, 02:33 UTC1h 4m
2026-07-25 ENY3689 BOS → IND Jul 25, 22:45 UTCJul 26, 00:00 UTC1h 15m
2026-07-25 ENY3689 BOS → IND Jul 25, 22:37 UTCJul 25, 23:56 UTC1h 19m
2026-07-25 ENY3689 BOS → IND Jul 25, 20:45 UTCJul 25, 21:45 UTC1h 0m
2026-07-25 ENY3776 BOS → ORD Jul 25, 17:40 UTCJul 25, 19:00 UTC1h 20m
2026-07-25 ENY3776 BOS → ORD Jul 25, 14:45 UTCJul 25, 15:55 UTC1h 10m
2026-07-25 ENY3392 AUS → ORD Jul 25, 11:15 UTCJul 25, 13:00 UTC1h 45m
2026-07-25 ENY3385 FAR → DFW Jul 25, 01:10 UTCJul 25, 03:00 UTC1h 50m
2026-07-24 ENY3538 ORD → CMH Jul 24, 21:25 UTCJul 24, 23:30 UTC2h 5m
2026-07-24 ENY3538 ORD → CMH Jul 24, 18:30 UTCJul 24, 20:25 UTC1h 55m
2026-07-24 ENY3591 ORD → RDU Jul 24, 16:25 UTCJul 24, 17:35 UTC1h 10m
2026-07-24 ENY3591 ORD → RDU Jul 24, 14:15 UTCJul 24, 15:25 UTC1h 10m
2026-07-24 ENY4119 GRR → DFW Jul 24, 12:00 UTCJul 24, 12:50 UTC50m
2026-07-24 ENY3378 ORD → CLE Jul 24, 02:15 UTCJul 24, 03:00 UTC45m
2026-07-24 ENY3378 ORD → CLE Jul 24, 02:13 UTCJul 24, 03:01 UTC48m
2026-07-23 ENY4290 MSY → MIA Jul 23, 23:40 UTCJul 24, 01:15 UTC1h 35m
2026-07-23 ENY4291 ORD → FCA Jul 23, 02:10 UTCJul 23, 03:45 UTC1h 35m
2026-07-22 ENY3859 DFW → MAF Jul 22, 20:28 UTCJul 22, 23:04 UTC2h 36m
2026-07-22 ENY3859 DFW → MAF Jul 22, 16:15 UTCJul 22, 23:05 UTC6h 50m
2026-07-22 ENY4137 DCA → RDU Jul 22, 14:00 UTCJul 22, 14:50 UTC50m
2026-07-22 ENY4137 DCA → RDU Jul 22, 13:55 UTCJul 22, 14:44 UTC49m
2026-07-22 ENY4137 DCA → RDU Jul 22, 12:20 UTCJul 22, 13:00 UTC40m
2026-07-22 ENY3830 PIT → ORD Jul 22, 01:40 UTCJul 22, 02:25 UTC45m
2026-07-22 ENY3830 PIT → ORD Jul 22, 01:37 UTCJul 22, 02:20 UTC43m
2026-07-21 ENY3830 PIT → ORD Jul 21, 23:55 UTCJul 22, 00:40 UTC45m
2026-07-21 ENY3777 MCI → DFW Jul 21, 21:30 UTCJul 21, 22:15 UTC45m
2026-07-21 ENY3777 MCI → DFW Jul 21, 19:55 UTCJul 21, 20:40 UTC45m
2026-07-21 ENY3661 DFW → SGF Jul 21, 17:20 UTCJul 21, 18:35 UTC1h 15m
2026-07-21 ENY3661 DFW → SGF Jul 21, 15:15 UTCJul 21, 16:25 UTC1h 10m
2026-07-21 ENY4027 TRC → DFW Jul 21, 11:35 UTCJul 21, 13:09 UTC1h 34m
2026-07-21 ENY4027 - Jul 21, 01:30 UTCJul 21, 13:10 UTC11h 40m
2026-07-20 ENY3502 - Jul 20, 22:30 UTCJul 21, 00:00 UTC1h 30m
2026-07-20 ENY3502 ECP → DFW Jul 20, 22:28 UTCJul 21, 00:05 UTC1h 37m
2026-07-20 ENY3502 - Jul 20, 19:30 UTCJul 20, 21:45 UTC2h 15m
2026-07-20 ENY3938 ORD → CID Jul 20, 16:15 UTCJul 20, 17:45 UTC1h 30m
2026-07-20 ENY3938 ORD → CID Jul 20, 16:13 UTCJul 20, 17:45 UTC1h 32m
2026-07-20 ENY3938 ORD → CID Jul 20, 13:45 UTCJul 20, 15:20 UTC1h 35m
2026-07-20 ENY3828 - Jul 20, 10:40 UTCJul 20, 11:50 UTC1h 10m
2026-07-20 ENY3828 - Jul 20, 10:25 UTCJul 20, 10:35 UTC10m
2026-07-20 ENY3828 EVV → DFW Jul 20, 10:22 UTCJul 20, 11:48 UTC1h 26m
2026-07-20 ENY4015 - Jul 20, 02:45 UTCJul 20, 04:10 UTC1h 25m
2026-07-20 ENY4113 - Jul 20, 00:05 UTCJul 20, 01:10 UTC1h 5m
2026-07-19 ENY4113 - Jul 19, 21:55 UTCJul 19, 22:55 UTC1h 0m
2026-07-19 ENY3847 ORD → GSP Jul 19, 20:00 UTCJul 19, 20:50 UTC50m
2026-07-19 ENY3847 ORD → GSP Jul 19, 19:58 UTCJul 19, 20:44 UTC46m

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 N275NN page for operator, model, and routing details .

Mode-S A2BA48 frequently asked

What is Mode-S code A2BA48?
A2BA48 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N275NN.
Where is Mode-S A2BA48 registered?
Mode-S code A2BA48 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 A2BA48 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2BA48, octal 50535110, decimal 10,664,520.
What flights does A2BA48 operate?
Mode-S A2BA48 has broadcast 20 distinct callsigns, including ENY4133, ENY3652, ENY3653, ENY3591, ENY3502.