Apparatus

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sensors Mode-S transponder

0B423F

ICAO 24-bit transponder address · allocated to Nicaragua

Hex
0B423F
Octal
02641077
Decimal
737,855
Country
NI
No current signal · last broadcast 2h ago
Flights observed
141
Distinct callsigns
2
Country
NI
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 0B423F.

Country allocation

The ICAO 24-bit address 0B423F 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 2 distinct

Callsign Airline Flights Last seen
TGADS - 91 2026-07-13
TGPEP - 50 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 TGPEP - Jul 14, 15:25 UTCJul 14, 15:45 UTC20m
2026-07-13 TGADS - Jul 13, 20:05 UTCJul 13, 20:10 UTC5m
2026-07-13 TGADS GUA → GUA Jul 13, 19:05 UTCJul 13, 19:10 UTC5m
2026-07-13 TGADS - Jul 13, 17:40 UTCJul 13, 17:45 UTC5m
2026-07-13 TGADS - Jul 13, 14:00 UTCJul 13, 14:05 UTC5m
2026-07-13 TGADS - Jul 13, 12:45 UTCJul 13, 12:50 UTC5m
2026-07-12 TGPEP - Jul 12, 18:25 UTCJul 12, 19:01 UTC35m
2026-07-12 TGPEP - Jul 12, 16:45 UTCJul 12, 17:30 UTC45m
2026-07-11 TGADS - Jul 11, 17:20 UTCJul 11, 17:25 UTC5m
2026-07-11 TGADS - Jul 11, 16:10 UTCJul 11, 16:15 UTC5m
2026-07-10 TGPEP - Jul 10, 23:30 UTCJul 11, 00:05 UTC35m
2026-07-10 TGPEP - Jul 10, 21:50 UTCJul 10, 22:40 UTC50m
2026-07-10 TGADS GUA → GUA Jul 10, 16:55 UTCJul 10, 17:45 UTC50m
2026-07-09 TGADS - Jul 9, 23:45 UTCJul 9, 23:50 UTC5m
2026-07-09 TGADS - Jul 9, 19:40 UTCJul 9, 19:45 UTC5m
2026-07-09 TGADS - Jul 9, 18:35 UTCJul 9, 18:45 UTC10m
2026-07-09 TGADS - Jul 9, 16:20 UTCJul 9, 16:30 UTC10m
2026-07-08 TGADS - Jul 8, 22:25 UTCJul 8, 22:35 UTC10m
2026-07-08 TGADS - Jul 8, 21:40 UTCJul 8, 21:50 UTC10m
2026-07-08 TGADS - Jul 8, 20:35 UTCJul 8, 21:10 UTC35m
2026-07-08 TGADS GUA → GUA Jul 8, 15:35 UTCJul 8, 16:10 UTC35m
2026-07-08 TGPEP - Jul 8, 13:10 UTCJul 8, 13:25 UTC15m
2026-07-07 TGADS - Jul 7, 21:55 UTCJul 7, 22:00 UTC5m
2026-07-05 TGADS - Jul 5, 22:35 UTCJul 5, 22:40 UTC5m
2026-07-05 TGADS - Jul 5, 21:20 UTCJul 5, 21:30 UTC10m
2026-07-05 TGADS - Jul 5, 21:00 UTCJul 5, 21:05 UTC5m
2026-07-05 TGADS - Jul 5, 20:05 UTCJul 5, 20:15 UTC10m
2026-07-05 TGADS - Jul 5, 11:45 UTCJul 5, 11:50 UTC5m
2026-07-04 TGADS - Jul 4, 18:20 UTCJul 4, 18:25 UTC5m
2026-07-04 TGADS - Jul 4, 17:25 UTCJul 4, 17:40 UTC15m
2026-07-03 TGADS - Jul 3, 14:50 UTCJul 3, 15:00 UTC10m
2026-07-03 TGADS - Jul 3, 13:30 UTCJul 3, 13:40 UTC10m
2026-06-30 TGADS - Jun 30, 22:30 UTCJun 30, 22:35 UTC5m
2026-06-30 TGPEP - Jun 30, 21:35 UTCJun 30, 22:00 UTC25m
2026-06-30 TGADS - Jun 30, 13:00 UTCJun 30, 13:10 UTC10m
2026-06-29 TGADS - Jun 29, 20:15 UTCJun 29, 20:19 UTC5m
2026-06-29 TGADS - Jun 29, 19:05 UTCJun 29, 19:15 UTC10m
2026-06-29 TGADS - Jun 29, 17:30 UTCJun 29, 17:59 UTC30m
2026-06-28 TGADS - Jun 28, 22:39 UTCJun 28, 22:49 UTC10m
2026-06-28 TGADS - Jun 28, 21:45 UTCJun 28, 21:55 UTC10m
2026-06-28 TGPEP - Jun 28, 13:55 UTCJun 28, 15:14 UTC1h 20m
2026-06-26 TGADS - Jun 26, 19:45 UTCJun 26, 20:00 UTC15m
2026-06-26 TGADS - Jun 26, 18:49 UTCJun 26, 19:00 UTC10m
2026-06-25 TGADS - Jun 25, 14:50 UTCJun 25, 14:55 UTC5m
2026-06-25 TGPEP - Jun 25, 00:24 UTCJun 25, 00:44 UTC20m
2026-06-24 TGPEP - Jun 24, 23:29 UTCJun 24, 23:50 UTC20m
2026-06-24 TGPEP - Jun 24, 22:49 UTCJun 24, 23:04 UTC15m
2026-06-24 TGADS - Jun 24, 22:04 UTCJun 24, 22:10 UTC5m
2026-06-24 TGPEP - Jun 24, 16:34 UTCJun 24, 16:45 UTC10m
2026-06-23 TGADS - Jun 23, 22:49 UTCJun 23, 22:55 UTC5m

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 0B423F frequently asked

What is Mode-S code 0B423F?
0B423F is an ICAO 24-bit transponder address. Allocated to Nicaragua.
Where is Mode-S 0B423F registered?
Mode-S code 0B423F is allocated to Nicaragua (NI). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0B423F broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0B423F, octal 02641077, decimal 737,855.
What flights does 0B423F operate?
Mode-S 0B423F has broadcast 2 distinct callsigns, including TGADS, TGPEP.