Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A2457B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2454E · CESSNA 172 Skyhawk · operated by SKY MATES INC

Hex
A2457B
Octal
50442573
Decimal
10,634,619
Country
US
Tail
N2454E
Type
C172
No current signal · last broadcast 21h ago
Flights observed
115
Distinct callsigns
1
Country
US
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S A2457B.

Country allocation

The ICAO 24-bit address A2457B 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 1 distinct

Callsign Airline Flights Last seen
N2454E - 115 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-02 N2454E - Jul 2, 21:15 UTCJul 2, 22:40 UTC1h 25m
2026-07-02 N2454E - Jul 2, 19:35 UTCJul 2, 20:10 UTC35m
2026-07-02 N2454E - Jul 2, 17:50 UTCJul 2, 18:35 UTC45m
2026-07-02 N2454E - Jul 2, 14:25 UTCJul 2, 15:20 UTC55m
2026-07-02 N2454E - Jul 2, 11:15 UTCJul 2, 11:50 UTC35m
2026-07-01 N2454E - Jul 1, 22:30 UTCJul 1, 23:10 UTC40m
2026-07-01 N2454E - Jul 1, 19:10 UTCJul 1, 20:45 UTC1h 35m
2026-07-01 N2454E - Jul 1, 17:45 UTCJul 1, 18:15 UTC30m
2026-07-01 N2454E - Jul 1, 14:30 UTCJul 1, 15:35 UTC1h 5m
2026-07-01 N2454E - Jul 1, 11:25 UTCJul 1, 11:50 UTC25m
2026-07-01 N2454E - Jul 1, 00:15 UTCJul 1, 01:50 UTC1h 35m
2026-06-30 N2454E - Jun 30, 21:45 UTCJun 30, 23:15 UTC1h 30m
2026-06-30 N2454E - Jun 30, 19:35 UTCJun 30, 20:35 UTC1h 0m
2026-06-30 N2454E - Jun 30, 14:00 UTCJun 30, 14:45 UTC45m
2026-06-29 N2454E - Jun 29, 16:00 UTCJun 29, 16:50 UTC50m
2026-06-26 N2454E - Jun 26, 21:15 UTCJun 27, 00:20 UTC3h 5m
2026-06-26 N2454E - Jun 26, 19:50 UTCJun 26, 20:10 UTC20m
2026-06-25 N2454E - Jun 25, 21:50 UTCJun 25, 22:39 UTC50m
2026-06-25 N2454E - Jun 25, 17:44 UTCJun 25, 18:45 UTC1h 0m
2026-06-25 N2454E - Jun 25, 15:44 UTCJun 25, 16:50 UTC1h 5m
2026-06-25 N2454E - Jun 25, 14:09 UTCJun 25, 14:59 UTC50m
2026-06-24 N2454E - Jun 24, 23:34 UTCJun 25, 00:55 UTC1h 20m
2026-06-24 N2454E - Jun 24, 19:39 UTCJun 24, 20:35 UTC55m
2026-06-24 N2454E - Jun 24, 17:29 UTCJun 24, 18:44 UTC1h 15m
2026-06-23 N2454E - Jun 23, 17:50 UTCJun 23, 18:50 UTC1h 0m
2026-06-22 N2454E - Jun 22, 23:45 UTCJun 23, 01:10 UTC1h 25m
2026-06-22 N2454E - Jun 22, 21:35 UTCJun 22, 22:19 UTC45m
2026-06-22 N2454E - Jun 22, 19:40 UTCJun 22, 20:34 UTC55m
2026-06-21 N2454E - Jun 21, 21:24 UTCJun 21, 22:44 UTC1h 20m
2026-06-18 N2454E - Jun 18, 23:35 UTCJun 19, 00:45 UTC1h 9m
2026-06-18 N2454E - Jun 18, 20:10 UTCJun 18, 20:25 UTC15m
2026-06-18 N2454E - Jun 18, 17:15 UTCJun 18, 18:25 UTC1h 10m
2026-06-18 N2454E - Jun 18, 15:35 UTCJun 18, 16:40 UTC1h 5m
2026-06-18 N2454E - Jun 18, 13:20 UTCJun 18, 14:35 UTC1h 15m
2026-06-17 N2454E - Jun 17, 19:45 UTCJun 17, 20:45 UTC1h 0m
2026-06-17 N2454E - Jun 17, 01:35 UTCJun 17, 03:00 UTC1h 25m
2026-06-16 N2454E - Jun 16, 19:35 UTCJun 16, 20:30 UTC56m
2026-06-16 N2454E - Jun 16, 17:35 UTCJun 16, 18:25 UTC50m
2026-06-15 N2454E - Jun 15, 19:35 UTCJun 15, 20:40 UTC1h 5m
2026-06-13 N2454E - Jun 13, 19:50 UTCJun 13, 20:50 UTC1h 0m
2026-06-13 N2454E - Jun 13, 18:05 UTCJun 13, 18:50 UTC45m
2026-06-13 N2454E - Jun 13, 15:35 UTCJun 13, 16:45 UTC1h 10m
2026-06-13 N2454E - Jun 13, 13:40 UTCJun 13, 14:45 UTC1h 5m
2026-06-12 N2454E - Jun 12, 13:30 UTCJun 12, 14:45 UTC1h 15m
2026-06-11 N2454E - Jun 11, 21:45 UTCJun 11, 23:05 UTC1h 20m
2026-06-11 N2454E - Jun 11, 19:55 UTCJun 11, 20:50 UTC55m
2026-06-11 N2454E - Jun 11, 17:35 UTCJun 11, 18:25 UTC50m
2026-06-10 N2454E - Jun 10, 21:45 UTCJun 10, 22:35 UTC50m
2026-06-10 N2454E - Jun 10, 17:45 UTCJun 10, 19:10 UTC1h 25m
2026-06-10 N2454E - Jun 10, 13:25 UTCJun 10, 14:20 UTC55m

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 N2454E page for operator, model, and routing details .

Mode-S A2457B frequently asked

What is Mode-S code A2457B?
A2457B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2454E.
Where is Mode-S A2457B registered?
Mode-S code A2457B 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 A2457B broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2457B, octal 50442573, decimal 10,634,619.
What flights does A2457B operate?
Mode-S A2457B has broadcast 1 distinct callsign, including N2454E.