Apparatus

Try JFK, AAL1290, BAW, or N225AN.

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 Jul 25, 21:55 UTC
Flights observed
161
Distinct callsigns
2
Country
NI
Last broadcast
Jul 25, 21:55 UTC

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 - 108 2026-07-25
TGPEP - 53 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 TGADS - Jul 25, 21:45 UTCJul 25, 21:50 UTC5m
2026-07-25 TGADS - Jul 25, 16:35 UTCJul 25, 16:45 UTC10m
2026-07-24 TGADS - Jul 24, 21:20 UTCJul 24, 21:30 UTC10m
2026-07-24 TGADS - Jul 24, 20:35 UTCJul 24, 20:40 UTC5m
2026-07-24 TGPEP - Jul 24, 17:35 UTCJul 24, 18:30 UTC55m
2026-07-23 TGPEP GUA → GUA Jul 23, 23:45 UTCJul 24, 01:25 UTC1h 40m
2026-07-23 TGADS - Jul 23, 22:10 UTCJul 23, 22:20 UTC10m
2026-07-23 TGADS - Jul 23, 15:05 UTCJul 23, 15:20 UTC15m
2026-07-21 TGADS - Jul 21, 21:40 UTCJul 21, 21:45 UTC5m
2026-07-21 TGADS - Jul 21, 13:25 UTCJul 21, 13:30 UTC5m
2026-07-20 TGADS - Jul 20, 21:45 UTCJul 20, 22:00 UTC15m
2026-07-20 TGADS - Jul 20, 12:15 UTCJul 20, 12:20 UTC5m
2026-07-19 TGADS - Jul 19, 12:35 UTCJul 19, 12:45 UTC10m
2026-07-19 TGADS - Jul 19, 11:50 UTCJul 19, 11:55 UTC5m
2026-07-18 TGPEP - Jul 18, 17:40 UTCJul 18, 18:05 UTC25m
2026-07-16 TGADS - Jul 16, 13:15 UTCJul 16, 13:20 UTC5m
2026-07-15 TGADS - Jul 15, 18:15 UTCJul 15, 18:20 UTC5m
2026-07-15 TGADS - Jul 15, 17:25 UTCJul 15, 17:30 UTC5m
2026-07-14 TGADS - Jul 14, 19:40 UTCJul 14, 19:45 UTC5m
2026-07-14 TGADS - Jul 14, 18:35 UTCJul 14, 18:40 UTC5m
2026-07-14 TGPEP - Jul 14, 15:25 UTCJul 14, 15:50 UTC25m
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

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 Jul 25, 21:55 UTC.
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.