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sensors Mode-S transponder

A34542

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N31JB · CESSNA 172 Skyhawk · operated by SMAYDA ALEX

Hex
A34542
Octal
50642502
Decimal
10,700,098
Country
US
Tail
N31JB
Type
C172
No current signal · last broadcast 15h ago
Flights observed
138
Distinct callsigns
1
Country
US
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S A34542.

Country allocation

The ICAO 24-bit address A34542 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
N31JB - 138 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-20 N31JB - Jul 20, 21:45 UTCJul 20, 22:40 UTC55m
2026-07-20 N31JB - Jul 20, 16:10 UTCJul 20, 16:35 UTC25m
2026-07-17 N31JB SAC → MOD Jul 17, 22:15 UTCJul 17, 22:49 UTC35m
2026-07-17 N31JB SAC → SAC Jul 17, 19:00 UTCJul 17, 20:40 UTC1h 40m
2026-07-17 N31JB - Jul 17, 13:55 UTCJul 17, 14:30 UTC35m
2026-07-16 N31JB MHR → MOD Jul 16, 22:49 UTCJul 16, 23:25 UTC35m
2026-07-16 N31JB MOD → MHR Jul 16, 16:44 UTCJul 16, 17:25 UTC40m
2026-07-15 N31JB - Jul 15, 20:30 UTCJul 15, 21:10 UTC40m
2026-07-15 N31JB - Jul 15, 18:35 UTCJul 15, 20:10 UTC1h 35m
2026-07-14 N31JB - Jul 14, 20:05 UTCJul 14, 21:30 UTC1h 25m
2026-07-14 N31JB - Jul 14, 05:55 UTCJul 14, 06:35 UTC40m
2026-07-14 N31JB - Jul 14, 04:50 UTCJul 14, 05:45 UTC55m
2026-07-14 N31JB - Jul 14, 04:00 UTCJul 14, 04:45 UTC45m
2026-07-14 N31JB - Jul 14, 02:55 UTCJul 14, 03:05 UTC10m
2026-07-12 N31JB - Jul 12, 19:05 UTCJul 12, 20:25 UTC1h 20m
2026-07-12 N31JB - Jul 12, 15:20 UTCJul 12, 16:10 UTC50m
2026-07-11 N31JB MCC → MOD Jul 11, 21:00 UTCJul 11, 22:15 UTC1h 15m
2026-07-11 N31JB - Jul 11, 17:20 UTCJul 11, 19:50 UTC2h 30m
2026-07-10 N31JB RHV → MOD Jul 10, 21:30 UTCJul 10, 22:40 UTC1h 10m
2026-07-10 N31JB - Jul 10, 20:30 UTCJul 10, 21:05 UTC36m
2026-07-10 N31JB - Jul 10, 17:20 UTCJul 10, 18:35 UTC1h 15m
2026-07-09 N31JB - Jul 9, 23:40 UTCJul 10, 01:00 UTC1h 20m
2026-07-08 N31JB - Jul 8, 20:05 UTCJul 8, 21:35 UTC1h 30m
2026-07-07 N31JB - Jul 7, 04:10 UTCJul 7, 04:50 UTC40m
2026-07-06 N31JB - Jul 6, 23:30 UTCJul 7, 00:10 UTC40m
2026-07-06 N31JB - Jul 6, 00:10 UTCJul 6, 00:25 UTC15m
2026-07-05 N31JB - Jul 5, 20:30 UTCJul 5, 21:10 UTC40m
2026-07-05 N31JB MOD → MOD Jul 5, 04:40 UTCJul 5, 06:50 UTC2h 10m
2026-07-04 N31JB MOD → MOD Jul 4, 19:20 UTCJul 4, 19:50 UTC30m
2026-07-02 N31JB MOD → MOD Jul 2, 21:00 UTCJul 2, 22:30 UTC1h 30m
2026-07-02 N31JB - Jul 2, 18:00 UTCJul 2, 19:45 UTC1h 45m
2026-07-02 N31JB MHR → MOD Jul 2, 00:10 UTCJul 2, 00:45 UTC35m
2026-07-01 N31JB - Jul 1, 22:00 UTCJul 1, 22:40 UTC40m
2026-06-30 N31JB - Jun 30, 21:40 UTCJun 30, 22:15 UTC35m
2026-06-30 N31JB - Jun 30, 15:15 UTCJun 30, 15:40 UTC25m
2026-06-29 N31JB OAK → MOD Jun 29, 19:29 UTCJun 29, 20:04 UTC35m
2026-06-29 N31JB - Jun 29, 13:44 UTCJun 29, 14:19 UTC35m
2026-06-27 N31JB - Jun 27, 19:00 UTCJun 27, 20:04 UTC1h 5m
2026-06-25 N31JB RHV → MOD Jun 25, 17:34 UTCJun 25, 18:00 UTC25m
2026-06-25 N31JB - Jun 25, 13:59 UTCJun 25, 14:34 UTC35m
2026-06-25 N31JB - Jun 25, 03:04 UTCJun 25, 04:14 UTC1h 10m
2026-06-24 N31JB - Jun 24, 19:24 UTCJun 24, 20:30 UTC1h 5m
2026-06-24 N31JB - Jun 24, 01:04 UTCJun 24, 01:55 UTC50m
2026-06-23 N31JB - Jun 23, 22:29 UTCJun 23, 23:19 UTC50m
2026-06-23 N31JB - Jun 23, 19:34 UTCJun 23, 20:24 UTC50m
2026-06-22 N31JB - Jun 22, 23:05 UTCJun 22, 23:39 UTC35m
2026-06-22 N31JB - Jun 22, 20:49 UTCJun 22, 21:59 UTC1h 10m
2026-06-22 N31JB - Jun 22, 02:25 UTCJun 22, 03:14 UTC50m
2026-06-17 N31JB - Jun 17, 23:45 UTCJun 18, 00:45 UTC1h 0m
2026-06-17 N31JB - Jun 17, 03:40 UTCJun 17, 04:50 UTC1h 10m

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 N31JB page for operator, model, and routing details .

Mode-S A34542 frequently asked

What is Mode-S code A34542?
A34542 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N31JB.
Where is Mode-S A34542 registered?
Mode-S code A34542 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 A34542 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A34542, octal 50642502, decimal 10,700,098.
What flights does A34542 operate?
Mode-S A34542 has broadcast 1 distinct callsign, including N31JB.