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sensors Mode-S transponder

0B4258

ICAO 24-bit transponder address · allocated to Nicaragua

Currently assigned to TG-CHI · CESSNA 172 Skyhawk

Hex
0B4258
Octal
02641130
Decimal
737,880
Country
NI
Tail
TG-CHI
Type
C172
No current signal · last broadcast 2d ago
Flights observed
118
Distinct callsigns
1
Country
NI
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 0B4258.

Country allocation

The ICAO 24-bit address 0B4258 falls within the block assigned to Nicaragua (NI) by ICAO Annex 10, Volume III. Every aircraft registered in Nicaragua 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
TGCHI - 118 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 TGCHI GUA → GUA Jul 15, 15:25 UTCJul 15, 16:00 UTC35m
2026-07-13 TGCHI GUA → GUA Jul 13, 16:20 UTCJul 13, 16:40 UTC20m
2026-07-11 TGCHI - Jul 11, 18:00 UTCJul 11, 18:15 UTC15m
2026-07-11 TGCHI - Jul 11, 16:10 UTCJul 11, 16:20 UTC10m
2026-07-11 TGCHI - Jul 11, 14:40 UTCJul 11, 15:00 UTC20m
2026-07-11 TGCHI - Jul 11, 12:40 UTCJul 11, 13:00 UTC20m
2026-07-07 TGCHI - Jul 7, 22:05 UTCJul 7, 22:20 UTC15m
2026-07-03 TGCHI - Jul 3, 11:45 UTCJul 3, 12:15 UTC30m
2026-07-02 TGCHI - Jul 2, 19:55 UTCJul 2, 20:20 UTC25m
2026-07-02 TGCHI - Jul 2, 19:00 UTCJul 2, 19:15 UTC15m
2026-07-02 TGCHI - Jul 2, 17:00 UTCJul 2, 17:25 UTC25m
2026-07-02 TGCHI - Jul 2, 15:30 UTCJul 2, 15:45 UTC15m
2026-07-02 TGCHI - Jul 2, 14:25 UTCJul 2, 14:35 UTC10m
2026-07-02 TGCHI - Jul 2, 12:05 UTCJul 2, 12:30 UTC25m
2026-07-01 TGCHI - Jul 1, 14:10 UTCJul 1, 14:35 UTC25m
2026-07-01 TGCHI - Jul 1, 12:45 UTCJul 1, 13:10 UTC25m
2026-06-28 TGCHI - Jun 28, 15:09 UTCJun 28, 16:05 UTC55m
2026-06-27 TGCHI - Jun 27, 22:55 UTCJun 27, 23:25 UTC30m
2026-06-27 TGCHI - Jun 27, 21:50 UTCJun 27, 22:09 UTC20m
2026-06-27 TGCHI - Jun 27, 17:55 UTCJun 27, 18:39 UTC45m
2026-06-22 TGCHI - Jun 22, 12:44 UTCJun 22, 13:39 UTC55m
2026-06-21 TGCHI - Jun 21, 12:35 UTCJun 21, 12:49 UTC15m
2026-06-20 TGCHI - Jun 20, 15:09 UTCJun 20, 15:19 UTC10m
2026-06-20 TGCHI - Jun 20, 12:39 UTCJun 20, 13:14 UTC35m
2026-06-17 TGCHI - Jun 17, 17:50 UTCJun 17, 18:05 UTC15m
2026-06-17 TGCHI - Jun 17, 15:30 UTCJun 17, 16:05 UTC35m
2026-06-17 TGCHI - Jun 17, 14:00 UTCJun 17, 14:25 UTC25m
2026-06-17 TGCHI - Jun 17, 12:45 UTCJun 17, 13:15 UTC30m
2026-06-16 TGCHI - Jun 16, 14:00 UTCJun 16, 14:30 UTC30m
2026-06-16 TGCHI - Jun 16, 13:00 UTCJun 16, 13:30 UTC30m
2026-06-15 TGCHI - Jun 15, 14:00 UTCJun 15, 14:30 UTC30m
2026-06-15 TGCHI - Jun 15, 12:49 UTCJun 15, 13:20 UTC30m
2026-06-14 TGCHI - Jun 14, 18:15 UTCJun 14, 19:15 UTC1h 0m
2026-06-14 TGCHI - Jun 14, 14:30 UTCJun 14, 15:20 UTC50m
2026-06-13 TGCHI - Jun 13, 18:50 UTCJun 13, 19:00 UTC10m
2026-06-13 TGCHI GUA → GUA Jun 13, 16:05 UTCJun 13, 17:15 UTC1h 10m
2026-06-13 TGCHI - Jun 13, 14:30 UTCJun 13, 15:00 UTC30m
2026-06-13 TGCHI - Jun 13, 13:15 UTCJun 13, 13:40 UTC25m
2026-06-12 TGCHI - Jun 12, 17:50 UTCJun 12, 18:05 UTC15m
2026-06-10 TGCHI - Jun 10, 15:00 UTCJun 10, 15:15 UTC15m
2026-06-10 TGCHI - Jun 10, 12:40 UTCJun 10, 12:55 UTC15m
2026-06-09 TGCHI - Jun 9, 19:35 UTCJun 9, 19:55 UTC20m
2026-06-09 TGCHI - Jun 9, 18:35 UTCJun 9, 19:05 UTC30m
2026-06-09 TGCHI - Jun 9, 17:00 UTCJun 9, 17:15 UTC15m
2026-06-06 TGCHI - Jun 6, 14:50 UTCJun 6, 14:59 UTC10m
2026-06-06 TGCHI - Jun 6, 12:54 UTCJun 6, 13:15 UTC20m
2026-06-03 TGCHI - Jun 3, 19:15 UTCJun 3, 19:35 UTC20m
2026-06-03 TGCHI GUA → ENJ Jun 3, 18:10 UTCJun 3, 18:35 UTC25m
2026-06-03 TGCHI - Jun 3, 15:05 UTCJun 3, 15:15 UTC10m
2026-06-03 TGCHI - Jun 3, 13:45 UTCJun 3, 14:00 UTC15m

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 TG-CHI page for operator, model, and routing details .

Mode-S 0B4258 frequently asked

What is Mode-S code 0B4258?
0B4258 is an ICAO 24-bit transponder address. Allocated to Nicaragua. Assigned to TG-CHI.
Where is Mode-S 0B4258 registered?
Mode-S code 0B4258 is allocated to Nicaragua (NI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0B4258 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0B4258, octal 02641130, decimal 737,880.
What flights does 0B4258 operate?
Mode-S 0B4258 has broadcast 1 distinct callsign, including TGCHI.