Apparatus

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sensors Mode-S transponder

0B4423

ICAO 24-bit transponder address · allocated to Nicaragua

Hex
0B4423
Octal
02642043
Decimal
738,339
Country
NI
No current signal · last broadcast 5h ago
Flights observed
115
Distinct callsigns
1
Country
NI
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 0B4423.

Country allocation

The ICAO 24-bit address 0B4423 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
TGNLA - 115 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TGNLA - Jul 26, 16:00 UTCJul 26, 16:15 UTC15m
2026-07-26 TGNLA - Jul 26, 13:25 UTCJul 26, 13:30 UTC5m
2026-07-26 TGNLA - Jul 26, 12:30 UTCJul 26, 13:05 UTC35m
2026-07-25 TGNLA - Jul 25, 21:45 UTCJul 25, 21:50 UTC5m
2026-07-25 TGNLA - Jul 25, 21:15 UTCJul 25, 21:20 UTC5m
2026-07-25 TGNLA - Jul 25, 12:45 UTCJul 25, 13:00 UTC15m
2026-07-24 TGNLA - Jul 24, 13:45 UTCJul 24, 13:50 UTC5m
2026-07-24 TGNLA - Jul 24, 13:25 UTCJul 24, 13:35 UTC10m
2026-07-24 TGNLA - Jul 24, 12:40 UTCJul 24, 12:55 UTC15m
2026-07-23 TGNLA - Jul 23, 15:35 UTCJul 23, 15:55 UTC20m
2026-07-23 TGNLA - Jul 23, 14:20 UTCJul 23, 14:25 UTC5m
2026-07-18 TGNLA - Jul 18, 14:10 UTCJul 18, 14:20 UTC10m
2026-07-14 TGNLA - Jul 14, 12:10 UTCJul 14, 12:25 UTC15m
2026-07-13 TGNLA - Jul 13, 22:05 UTCJul 13, 22:10 UTC5m
2026-07-13 TGNLA - Jul 13, 21:50 UTCJul 13, 22:00 UTC10m
2026-07-13 TGNLA - Jul 13, 21:35 UTCJul 13, 21:40 UTC5m
2026-07-13 TGNLA - Jul 13, 13:35 UTCJul 13, 14:00 UTC25m
2026-07-13 TGNLA - Jul 13, 13:10 UTCJul 13, 13:25 UTC15m
2026-07-12 TGNLA - Jul 12, 14:15 UTCJul 12, 14:30 UTC15m
2026-07-11 TGNLA - Jul 11, 14:50 UTCJul 11, 15:00 UTC10m
2026-07-11 TGNLA - Jul 11, 13:30 UTCJul 11, 13:35 UTC5m
2026-07-11 TGNLA - Jul 11, 12:30 UTCJul 11, 12:40 UTC10m
2026-07-10 TGNLA - Jul 10, 16:40 UTCJul 10, 16:55 UTC15m
2026-07-10 TGNLA - Jul 10, 15:10 UTCJul 10, 15:35 UTC25m
2026-07-10 TGNLA - Jul 10, 14:40 UTCJul 10, 14:55 UTC15m
2026-07-10 TGNLA - Jul 10, 12:30 UTCJul 10, 13:10 UTC40m
2026-07-10 TGNLA - Jul 10, 12:00 UTCJul 10, 12:10 UTC10m
2026-07-09 TGNLA - Jul 9, 16:45 UTCJul 9, 16:55 UTC10m
2026-07-09 TGNLA - Jul 9, 15:15 UTCJul 9, 15:45 UTC30m
2026-07-09 TGNLA - Jul 9, 13:25 UTCJul 9, 13:35 UTC10m
2026-07-09 TGNLA - Jul 9, 12:50 UTCJul 9, 12:55 UTC5m
2026-07-09 TGNLA - Jul 9, 12:15 UTCJul 9, 12:40 UTC25m
2026-07-08 TGNLA - Jul 8, 21:55 UTCJul 8, 22:05 UTC10m
2026-07-08 TGNLA - Jul 8, 12:25 UTCJul 8, 12:30 UTC5m
2026-07-08 TGNLA - Jul 8, 11:55 UTCJul 8, 12:15 UTC20m
2026-07-07 TGNLA - Jul 7, 21:35 UTCJul 7, 21:40 UTC5m
2026-07-07 TGNLA - Jul 7, 21:15 UTCJul 7, 21:20 UTC5m
2026-07-07 TGNLA - Jul 7, 17:45 UTCJul 7, 18:05 UTC20m
2026-07-07 TGNLA - Jul 7, 17:05 UTCJul 7, 17:40 UTC35m
2026-07-07 TGNLA - Jul 7, 15:35 UTCJul 7, 15:40 UTC5m
2026-07-07 TGNLA - Jul 7, 14:50 UTCJul 7, 15:25 UTC35m
2026-07-07 TGNLA - Jul 7, 11:40 UTCJul 7, 11:50 UTC10m
2026-07-06 TGNLA - Jul 6, 22:20 UTCJul 6, 22:25 UTC5m
2026-07-06 TGNLA - Jul 6, 21:55 UTCJul 6, 22:00 UTC5m
2026-07-06 TGNLA - Jul 6, 12:50 UTCJul 6, 13:10 UTC20m
2026-07-06 TGNLA - Jul 6, 12:20 UTCJul 6, 12:35 UTC15m
2026-07-04 TGNLA - Jul 4, 15:40 UTCJul 4, 15:50 UTC10m
2026-07-04 TGNLA - Jul 4, 12:30 UTCJul 4, 12:50 UTC20m
2026-07-03 TGNLA - Jul 3, 15:15 UTCJul 3, 15:25 UTC10m
2026-07-03 TGNLA - Jul 3, 12:45 UTCJul 3, 13:00 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.

Mode-S 0B4423 frequently asked

What is Mode-S code 0B4423?
0B4423 is an ICAO 24-bit transponder address. Allocated to Nicaragua.
Where is Mode-S 0B4423 registered?
Mode-S code 0B4423 is allocated to Nicaragua (NI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0B4423 broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0B4423, octal 02642043, decimal 738,339.
What flights does 0B4423 operate?
Mode-S 0B4423 has broadcast 1 distinct callsign, including TGNLA.