Apparatus

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sensors Mode-S transponder

0B4131

ICAO 24-bit transponder address · allocated to Nicaragua

Currently assigned to TG-ESA · BEECH 55 Baron

Hex
0B4131
Octal
02640461
Decimal
737,585
Country
NI
Tail
TG-ESA
Type
BE55
No current signal · last broadcast 3d ago
Flights observed
63
Distinct callsigns
1
Country
NI
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 0B4131.

Country allocation

The ICAO 24-bit address 0B4131 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
TGESA - 63 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TGESA - Jul 26, 20:30 UTCJul 26, 20:50 UTC20m
2026-07-24 TGESA - Jul 24, 23:50 UTCJul 24, 23:55 UTC5m
2026-07-24 TGESA - Jul 24, 21:40 UTCJul 24, 22:05 UTC25m
2026-07-24 TGESA - Jul 24, 13:15 UTCJul 24, 13:35 UTC20m
2026-07-23 TGESA - Jul 23, 19:50 UTCJul 23, 20:15 UTC25m
2026-07-23 TGESA - Jul 23, 14:05 UTCJul 23, 14:25 UTC20m
2026-07-22 TGESA - Jul 22, 20:45 UTCJul 22, 21:15 UTC30m
2026-07-18 TGESA - Jul 18, 00:25 UTCJul 18, 00:29 UTC5m
2026-07-17 TGESA - Jul 17, 22:05 UTCJul 17, 22:35 UTC30m
2026-07-17 TGESA - Jul 17, 19:09 UTCJul 17, 19:30 UTC20m
2026-07-15 TGESA - Jul 15, 21:20 UTCJul 15, 21:50 UTC30m
2026-07-10 TGESA - Jul 10, 21:15 UTCJul 10, 21:45 UTC30m
2026-07-06 TGESA - Jul 6, 20:25 UTCJul 6, 20:55 UTC30m
2026-07-06 TGESA - Jul 6, 19:05 UTCJul 6, 19:30 UTC25m
2026-07-06 TGESA - Jul 6, 17:55 UTCJul 6, 18:20 UTC25m
2026-07-02 TGESA - Jul 2, 22:45 UTCJul 2, 23:10 UTC25m
2026-07-02 TGESA - Jul 2, 20:25 UTCJul 2, 20:45 UTC20m
2026-07-01 TGESA - Jul 1, 21:10 UTCJul 1, 21:35 UTC25m
2026-07-01 TGESA - Jul 1, 20:05 UTCJul 1, 20:35 UTC30m
2026-07-01 TGESA - Jul 1, 18:55 UTCJul 1, 19:25 UTC30m
2026-06-28 TGESA - Jun 28, 19:44 UTCJun 28, 19:59 UTC15m
2026-06-28 TGESA - Jun 28, 18:55 UTCJun 28, 19:14 UTC20m
2026-06-26 TGESA - Jun 26, 18:15 UTCJun 26, 18:49 UTC35m
2026-06-26 TGESA - Jun 26, 16:20 UTCJun 26, 16:49 UTC30m
2026-06-21 TGESA - Jun 21, 21:05 UTCJun 21, 21:10 UTC5m
2026-06-21 TGESA - Jun 21, 18:54 UTCJun 21, 19:24 UTC30m
2026-06-20 TGESA - Jun 20, 20:00 UTCJun 20, 20:09 UTC10m
2026-06-20 TGESA - Jun 20, 14:35 UTCJun 20, 14:54 UTC20m
2026-06-19 TGESA - Jun 19, 20:34 UTCJun 19, 20:55 UTC20m
2026-06-19 TGESA - Jun 19, 14:29 UTCJun 19, 14:54 UTC25m
2026-06-18 TGESA - Jun 18, 17:50 UTCJun 18, 18:15 UTC25m
2026-06-13 TGESA - Jun 13, 21:15 UTCJun 13, 21:20 UTC5m
2026-06-13 TGESA - Jun 13, 17:40 UTCJun 13, 17:55 UTC15m
2026-06-13 TGESA GUA → GUA Jun 13, 15:40 UTCJun 13, 16:45 UTC1h 5m
2026-06-12 TGESA - Jun 12, 13:20 UTCJun 12, 13:45 UTC25m
2026-06-11 TGESA - Jun 11, 20:00 UTCJun 11, 20:15 UTC15m
2026-06-10 TGESA - Jun 10, 14:45 UTCJun 10, 15:10 UTC25m
2026-06-09 TGESA - Jun 9, 16:45 UTCJun 9, 16:50 UTC5m
2026-06-08 TGESA - Jun 8, 18:10 UTCJun 8, 18:25 UTC15m
2026-06-06 TGESA - Jun 6, 19:54 UTCJun 6, 20:30 UTC35m
2026-06-06 TGESA - Jun 6, 18:35 UTCJun 6, 19:10 UTC35m
2026-06-04 TGESA - Jun 4, 22:25 UTCJun 4, 22:50 UTC25m
2026-06-03 TGESA - Jun 3, 14:40 UTCJun 3, 15:00 UTC20m
2026-06-02 TGESA - Jun 2, 18:50 UTCJun 2, 18:55 UTC5m
2026-06-02 TGESA - Jun 2, 18:00 UTCJun 2, 18:05 UTC5m
2026-06-01 TGESA - Jun 1, 21:45 UTCJun 1, 22:10 UTC25m
2026-06-01 TGESA - Jun 1, 19:20 UTCJun 1, 19:50 UTC30m
2026-05-26 TGESA - May 26, 15:00 UTCMay 26, 15:24 UTC25m
2026-05-26 TGESA - May 26, 13:50 UTCMay 26, 14:14 UTC25m
2026-05-24 TGESA - May 24, 20:30 UTCMay 24, 20:55 UTC25m

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-ESA page for operator, model, and routing details .

Mode-S 0B4131 frequently asked

What is Mode-S code 0B4131?
0B4131 is an ICAO 24-bit transponder address. Allocated to Nicaragua. Assigned to TG-ESA.
Where is Mode-S 0B4131 registered?
Mode-S code 0B4131 is allocated to Nicaragua (NI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0B4131 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0B4131, octal 02640461, decimal 737,585.
What flights does 0B4131 operate?
Mode-S 0B4131 has broadcast 1 distinct callsign, including TGESA.