Apparatus

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sensors Mode-S transponder

0B4259

ICAO 24-bit transponder address · allocated to Nicaragua

Currently assigned to TG-ATC · ATR-72-500

Hex
0B4259
Octal
02641131
Decimal
737,881
Country
NI
Tail
TG-ATC
Type
AT75
No current signal · last broadcast 1d ago
Flights observed
119
Distinct callsigns
12
Country
NI
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 0B4259.

Country allocation

The ICAO 24-bit address 0B4259 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 12 distinct

Callsign Airline Flights Last seen
TGU110 TAG Airlines 19 2026-05-19
TGU150 TAG Airlines 16 2026-05-25
TGU140 TAG Airlines 16 2026-05-19
TGU120 TAG Airlines 16 2026-05-15
TGU804 TAG Airlines 15 2026-05-25
TGU320 TAG Airlines 12 2026-06-01
TGU322 TAG Airlines 9 2026-05-18
TGU160 TAG Airlines 9 2026-05-13
TGU413 TAG Airlines 4 2026-05-24
THV150 - 1 2026-05-14
TGU111 TAG Airlines 1 2026-04-19
TGATC - 1 2026-04-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-01 TGU320 GUA → SAP Jun 1, 17:05 UTCJun 1, 17:30 UTC25m
2026-05-26 TGU320 GUA → SAP May 26, 11:34 UTCMay 26, 12:10 UTC35m
2026-05-25 TGU150 GUA → FRS May 25, 22:49 UTCMay 25, 23:10 UTC20m
2026-05-25 TGU804 GUA → BZE May 25, 18:50 UTCMay 25, 19:25 UTC34m
2026-05-25 TGU320 GUA → SAP May 25, 11:40 UTCMay 25, 12:15 UTC35m
2026-05-24 TGU413 GUA → RTB May 24, 15:25 UTCMay 24, 16:10 UTC45m
2026-05-23 TGU804 GUA → BZE May 23, 18:30 UTCMay 23, 18:50 UTC20m
2026-05-23 TGU320 GUA → SAP May 23, 11:30 UTCMay 23, 12:00 UTC30m
2026-05-22 TGU150 GUA → FRS May 22, 22:50 UTCMay 22, 23:15 UTC25m
2026-05-22 TGU804 GUA → BZE May 22, 18:45 UTCMay 22, 19:10 UTC25m
2026-05-22 TGU320 GUA → SAP May 22, 11:40 UTCMay 22, 12:15 UTC35m
2026-05-21 TGU413 GUA → RTB May 21, 15:45 UTCMay 21, 16:25 UTC40m
2026-05-21 TGU320 GUA → SAP May 21, 11:30 UTCMay 21, 12:00 UTC30m
2026-05-20 TGU150 GUA → FRS May 20, 23:05 UTCMay 20, 23:20 UTC15m
2026-05-20 TGU804 GUA → BZE May 20, 18:55 UTCMay 20, 19:30 UTC35m
2026-05-20 TGU320 GUA → SAP May 20, 11:30 UTCMay 20, 12:05 UTC35m
2026-05-19 TGU150 GUA → FRS May 19, 22:05 UTCMay 19, 22:20 UTC15m
2026-05-19 TGU804 GUA → BZE May 19, 18:10 UTCMay 19, 18:30 UTC20m
2026-05-19 TGU140 GUA → FRS May 19, 15:05 UTCMay 19, 15:20 UTC15m
2026-05-19 TGU110 GUA → FRS May 19, 11:40 UTCMay 19, 12:00 UTC20m
2026-05-18 TGU322 GUA → SAP May 18, 23:00 UTCMay 18, 23:40 UTC40m
2026-05-18 TGU320 GUA → SAP May 18, 11:35 UTCMay 18, 12:15 UTC40m
2026-05-17 TGU413 GUA → RTB May 17, 15:45 UTCMay 17, 16:30 UTC45m
2026-05-16 TGU804 GUA → BZE May 16, 18:35 UTCMay 16, 19:00 UTC25m
2026-05-16 TGU320 GUA → SAP May 16, 11:31 UTCMay 16, 12:05 UTC35m
2026-05-15 TGU150 GUA → FRS May 15, 23:00 UTCMay 15, 23:15 UTC15m
2026-05-15 TGU804 GUA → BZE May 15, 19:10 UTCMay 15, 19:40 UTC30m
2026-05-15 TGU320 GUA → SAP May 15, 11:25 UTCMay 15, 12:00 UTC35m
2026-05-15 TGU120 GUA → FRS May 15, 01:05 UTCMay 15, 01:25 UTC20m
2026-05-14 THV150 - May 14, 22:00 UTCMay 14, 22:20 UTC20m
2026-05-14 TGU804 GUA → BZE May 14, 17:50 UTCMay 14, 18:15 UTC25m
2026-05-14 TGU140 GUA → FRS May 14, 14:55 UTCMay 14, 15:10 UTC15m
2026-05-14 TGU110 GUA → FRS May 14, 11:50 UTCMay 14, 12:10 UTC20m
2026-05-14 TGU120 GUA → FRS May 14, 01:55 UTCMay 14, 02:05 UTC10m
2026-05-13 TGU322 GUA → SAP May 13, 22:05 UTCMay 13, 22:40 UTC35m
2026-05-13 TGU160 GUA → FRS May 13, 18:20 UTCMay 13, 18:35 UTC15m
2026-05-13 TGU140 GUA → FRS May 13, 15:10 UTCMay 13, 15:30 UTC20m
2026-05-13 TGU110 GUA → FRS May 13, 12:25 UTCMay 13, 12:40 UTC15m
2026-05-13 TGU120 GUA → FRS May 13, 01:15 UTCMay 13, 01:30 UTC15m
2026-05-12 TGU150 GUA → FRS May 12, 22:01 UTCMay 12, 22:20 UTC20m
2026-05-12 TGU804 GUA → BZE May 12, 18:10 UTCMay 12, 18:40 UTC30m
2026-05-12 TGU140 GUA → FRS May 12, 15:05 UTCMay 12, 15:20 UTC15m
2026-05-12 TGU110 GUA → FRS May 12, 11:35 UTCMay 12, 11:50 UTC15m
2026-05-11 TGU322 GUA → SAP May 11, 22:05 UTCMay 11, 22:15 UTC10m
2026-05-11 TGU160 GUA → FRS May 11, 18:25 UTCMay 11, 18:35 UTC10m
2026-05-11 TGU140 GUA → FRS May 11, 15:00 UTCMay 11, 15:10 UTC10m
2026-05-11 TGU110 GUA → FRS May 11, 12:05 UTCMay 11, 12:20 UTC15m
2026-05-11 TGU120 GUA → FRS May 11, 01:10 UTCMay 11, 01:30 UTC20m
2026-05-10 TGU150 GUA → FRS May 10, 22:15 UTCMay 10, 22:30 UTC15m
2026-05-10 TGU322 GUA → SAP May 10, 18:55 UTCMay 10, 19:35 UTC40m

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

Mode-S 0B4259 frequently asked

What is Mode-S code 0B4259?
0B4259 is an ICAO 24-bit transponder address. Allocated to Nicaragua. Assigned to TG-ATC.
Where is Mode-S 0B4259 registered?
Mode-S code 0B4259 is allocated to Nicaragua (NI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0B4259 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0B4259, octal 02641131, decimal 737,881.
What flights does 0B4259 operate?
Mode-S 0B4259 has broadcast 12 distinct callsigns, including TGU110, TGU150, TGU140, TGU120, TGU804.