Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

457C22

ICAO 24-bit transponder address · allocated to Bulgaria

Hex
457C22
Octal
21276042
Decimal
4,553,762
Country
BG
No current signal · last broadcast 3d ago
Flights observed
80
Distinct callsigns
1
Country
BG
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S 457C22.

Country allocation

The ICAO 24-bit address 457C22 falls within the block assigned to Bulgaria (BG) by ICAO Annex 10, Volume III. Every aircraft registered in Bulgaria 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
AFB601 - 79 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 AFB601 - Jul 24, 06:35 UTCJul 24, 06:50 UTC15m
2026-07-24 AFB601 - Jul 24, 05:30 UTCJul 24, 05:50 UTC20m
2026-07-24 AFB601 - Jul 24, 04:05 UTCJul 24, 04:40 UTC35m
2026-07-23 AFB601 - Jul 23, 06:35 UTCJul 23, 06:55 UTC20m
2026-07-23 AFB601 - Jul 23, 05:20 UTCJul 23, 05:35 UTC15m
2026-07-23 AFB601 - Jul 23, 04:10 UTCJul 23, 04:30 UTC20m
2026-07-21 AFB601 - Jul 21, 08:45 UTCJul 21, 09:00 UTC15m
2026-07-21 AFB601 - Jul 21, 04:05 UTCJul 21, 04:35 UTC30m
2026-07-17 AFB601 - Jul 17, 08:35 UTCJul 17, 08:54 UTC20m
2026-07-17 AFB601 - Jul 17, 07:30 UTCJul 17, 07:50 UTC20m
2026-07-17 AFB601 - Jul 17, 05:10 UTCJul 17, 06:50 UTC1h 40m
2026-07-17 AFB601 - Jul 17, 04:04 UTCJul 17, 04:39 UTC35m
2026-07-16 AFB601 - Jul 16, 08:35 UTCJul 16, 08:45 UTC10m
2026-07-16 AFB601 - Jul 16, 06:25 UTCJul 16, 06:50 UTC25m
2026-07-16 AFB601 - Jul 16, 05:15 UTCJul 16, 05:40 UTC25m
2026-07-16 AFB601 - Jul 16, 04:05 UTCJul 16, 04:40 UTC35m
2026-07-15 AFB601 - Jul 15, 09:25 UTCJul 15, 09:45 UTC20m
2026-07-15 AFB601 - Jul 15, 08:20 UTCJul 15, 08:45 UTC25m
2026-07-15 AFB601 - Jul 15, 07:10 UTCJul 15, 07:35 UTC25m
2026-07-15 AFB601 - Jul 15, 05:20 UTCJul 15, 05:50 UTC30m
2026-07-15 AFB601 - Jul 15, 04:10 UTCJul 15, 04:40 UTC30m
2026-07-14 AFB601 - Jul 14, 09:50 UTCJul 14, 10:05 UTC15m
2026-07-14 AFB601 - Jul 14, 08:40 UTCJul 14, 09:00 UTC20m
2026-07-14 AFB601 - Jul 14, 07:35 UTCJul 14, 07:55 UTC20m
2026-07-14 AFB601 - Jul 14, 06:30 UTCJul 14, 06:50 UTC20m
2026-07-14 AFB601 - Jul 14, 05:15 UTCJul 14, 05:45 UTC30m
2026-07-14 AFB601 - Jul 14, 04:00 UTCJul 14, 04:35 UTC35m
2026-07-08 AFB601 - Jul 8, 05:30 UTCJul 8, 05:45 UTC15m
2026-07-08 AFB601 - Jul 8, 04:05 UTCJul 8, 04:35 UTC30m
2026-07-07 AFB601 - Jul 7, 07:35 UTCJul 7, 08:00 UTC25m
2026-07-07 AFB601 - Jul 7, 06:30 UTCJul 7, 06:55 UTC25m
2026-07-07 AFB601 - Jul 7, 04:10 UTCJul 7, 05:45 UTC1h 35m
2026-07-02 AFB601 - Jul 2, 05:50 UTCJul 2, 06:15 UTC25m
2026-06-30 AFB601 - Jun 30, 05:40 UTCJun 30, 06:15 UTC35m
2026-06-23 AFB601 - Jun 23, 05:49 UTCJun 23, 06:04 UTC15m
2026-06-18 AFB601 - Jun 18, 10:15 UTCJun 18, 10:25 UTC10m
2026-06-18 AFB601 - Jun 18, 08:05 UTCJun 18, 08:25 UTC20m
2026-06-18 AFB601 - Jun 18, 05:55 UTCJun 18, 06:15 UTC20m
2026-06-17 AFB601 - Jun 17, 13:25 UTCJun 17, 13:35 UTC10m
2026-05-29 AFB601 - May 29, 12:20 UTCMay 29, 12:35 UTC15m
2026-05-29 AFB601 - May 29, 11:25 UTCMay 29, 11:45 UTC20m
2026-05-29 AFB601 - May 29, 09:05 UTCMay 29, 09:20 UTC15m
2026-05-29 AFB601 - May 29, 07:55 UTCMay 29, 08:15 UTC20m
2026-05-29 AFB601 - May 29, 06:25 UTCMay 29, 06:45 UTC20m
2026-05-28 AFB601 - May 28, 14:05 UTCMay 28, 14:15 UTC10m
2026-05-28 AFB601 - May 28, 09:55 UTCMay 28, 10:10 UTC15m
2026-05-28 AFB601 - May 28, 07:20 UTCMay 28, 07:45 UTC25m
2026-05-28 AFB601 - May 28, 06:05 UTCMay 28, 06:25 UTC20m
2026-05-27 AFB601 - May 27, 16:50 UTCMay 27, 17:05 UTC15m
2026-05-27 - - May 27, 12:50 UTCMay 27, 13:00 UTC10m

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 457C22 frequently asked

What is Mode-S code 457C22?
457C22 is an ICAO 24-bit transponder address. Allocated to Bulgaria.
Where is Mode-S 457C22 registered?
Mode-S code 457C22 is allocated to Bulgaria (BG). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 457C22 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 457C22, octal 21276042, decimal 4,553,762.
What flights does 457C22 operate?
Mode-S 457C22 has broadcast 1 distinct callsign, including AFB601.