sensors Mode-S transponder

4BB721

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-MYA · AIRBUS A-321

Hex
4BB721
Octal
22733441
Decimal
4,962,081
Country
TR
Tail
TC-MYA
Type
A321
No current signal · last broadcast 1d ago
Flights observed
243
Distinct callsigns
20
Country
TR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4BB721.

Country allocation

The ICAO 24-bit address 4BB721 falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey 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 20 distinct

Callsign Airline Flights Last seen
DAH1208 - 32 2026-07-15
DAH3201 - 30 2026-07-05
DAH1209 - 27 2026-07-15
DAH3200 - 26 2026-07-04
DAH1226 - 26 2026-07-16
DAH1227 - 25 2026-07-16
DAH2201 - 18 2026-07-12
DAH2200 - 17 2026-07-12
DAH2207 - 8 2026-07-15
DAH2206 - 8 2026-07-15
DAH2778 - 6 2026-07-13
DAH2779 - 5 2026-07-13
DAH1800 - 5 2026-07-11
DAH5700 - 2 2026-06-15
DAH6716 - 1 2026-06-26
DAH6714 - 1 2026-06-25
DAH6713 - 1 2026-06-25
DAH2781 - 1 2026-05-23
DAH2780 - 1 2026-05-23
DAH1801 - 1 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-16 DAH1227 - Jul 16, 10:55 UTCJul 16, 11:34 UTC40m
2026-07-16 DAH1227 - Jul 16, 08:00 UTCJul 16, 09:40 UTC1h 40m
2026-07-16 DAH1226 - Jul 16, 05:05 UTCJul 16, 06:30 UTC1h 25m
2026-07-15 DAH2207 - Jul 15, 22:25 UTCJul 15, 23:30 UTC1h 5m
2026-07-15 DAH2206 - Jul 15, 18:50 UTCJul 15, 20:00 UTC1h 10m
2026-07-15 DAH1209 - Jul 15, 14:20 UTCJul 15, 16:05 UTC1h 45m
2026-07-15 DAH1208 - Jul 15, 10:40 UTCJul 15, 12:30 UTC1h 50m
2026-07-13 DAH2779 - Jul 13, 13:40 UTCJul 13, 15:40 UTC2h 0m
2026-07-13 DAH2778 - Jul 13, 07:20 UTCJul 13, 09:20 UTC2h 0m
2026-07-12 DAH2201 - Jul 12, 18:55 UTCJul 12, 21:00 UTC2h 5m
2026-07-12 DAH2200 - Jul 12, 15:20 UTCJul 12, 17:40 UTC2h 20m
2026-07-12 DAH1227 - Jul 12, 13:10 UTCJul 12, 13:30 UTC20m
2026-07-12 DAH1226 - Jul 12, 10:05 UTCJul 12, 11:35 UTC1h 30m
2026-07-12 DAH1226 - Jul 12, 06:30 UTCJul 12, 07:55 UTC1h 25m
2026-07-11 DAH1209 - Jul 11, 17:20 UTCJul 11, 19:10 UTC1h 50m
2026-07-11 DAH1208 - Jul 11, 07:30 UTCJul 11, 15:15 UTC7h 45m
2026-07-11 DAH1800 - Jul 11, 05:05 UTCJul 11, 06:15 UTC1h 10m
2026-07-10 DAH1209 - Jul 10, 18:25 UTCJul 10, 20:15 UTC1h 50m
2026-07-10 DAH1208 - Jul 10, 14:50 UTCJul 10, 16:50 UTC2h 0m
2026-07-09 DAH1227 - Jul 9, 11:40 UTCJul 9, 12:15 UTC35m
2026-07-09 DAH1226 - Jul 9, 08:50 UTCJul 9, 10:35 UTC1h 45m
2026-07-09 DAH1226 - Jul 9, 05:30 UTCJul 9, 06:50 UTC1h 20m
2026-07-08 DAH2207 - Jul 8, 22:30 UTCJul 8, 23:30 UTC1h 0m
2026-07-08 DAH2206 - Jul 8, 19:20 UTCJul 8, 20:20 UTC1h 0m
2026-07-08 DAH1209 - Jul 8, 09:15 UTCJul 8, 11:10 UTC1h 55m
2026-07-08 DAH1208 - Jul 8, 05:10 UTCJul 8, 07:10 UTC2h 0m
2026-07-07 DAH2201 - Jul 7, 17:20 UTCJul 7, 19:15 UTC1h 55m
2026-07-07 DAH2200 - Jul 7, 13:35 UTCJul 7, 15:50 UTC2h 15m
2026-07-05 DAH2201 - Jul 5, 17:35 UTCJul 5, 19:35 UTC2h 0m
2026-07-05 DAH2200 - Jul 5, 13:05 UTCJul 5, 15:25 UTC2h 20m
2026-07-05 DAH3201 - Jul 5, 04:15 UTCJul 5, 07:15 UTC3h 0m
2026-07-04 DAH3200 - Jul 4, 22:45 UTCJul 5, 01:40 UTC2h 55m
2026-07-04 DAH1209 - Jul 4, 09:55 UTCJul 4, 11:30 UTC1h 35m
2026-07-04 DAH1208 - Jul 4, 05:40 UTCJul 4, 07:45 UTC2h 5m
2026-07-02 DAH1227 - Jul 2, 10:40 UTCJul 2, 11:05 UTC25m
2026-07-02 DAH1226 - Jul 2, 08:10 UTCJul 2, 09:40 UTC1h 30m
2026-07-02 DAH1226 - Jul 2, 05:05 UTCJul 2, 06:25 UTC1h 20m
2026-07-01 DAH2207 - Jul 1, 22:15 UTCJul 1, 23:05 UTC50m
2026-07-01 DAH2206 - Jul 1, 19:10 UTCJul 1, 20:05 UTC55m
2026-06-30 DAH2201 - Jun 30, 16:50 UTCJun 30, 19:00 UTC2h 10m
2026-06-30 DAH2200 - Jun 30, 13:20 UTCJun 30, 15:30 UTC2h 10m
2026-06-30 DAH1800 - Jun 30, 06:40 UTCJun 30, 07:25 UTC45m
2026-06-30 DAH1800 - Jun 30, 04:10 UTCJun 30, 05:15 UTC1h 5m
2026-06-28 DAH2201 - Jun 28, 17:25 UTCJun 28, 19:40 UTC2h 15m
2026-06-28 DAH2200 BRU → BRU Jun 28, 13:34 UTCJun 28, 15:40 UTC2h 5m
2026-06-28 DAH1225 - Jun 28, 09:50 UTCJun 28, 11:25 UTC1h 35m
2026-06-28 DAH1224 - Jun 28, 07:20 UTCJun 28, 08:39 UTC1h 20m
2026-06-28 DAH3201 - Jun 28, 02:44 UTCJun 28, 05:29 UTC2h 45m
2026-06-27 DAH3200 - Jun 27, 21:55 UTCJun 28, 00:50 UTC2h 55m
2026-06-27 DAH1209 - Jun 27, 18:15 UTCJun 27, 20:09 UTC1h 55m

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 TC-MYA page for operator, model, and routing details .

Mode-S 4BB721 frequently asked

What is Mode-S code 4BB721?
4BB721 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-MYA.
Where is Mode-S 4BB721 registered?
Mode-S code 4BB721 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BB721 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 4BB721, octal 22733441, decimal 4,962,081.
What flights does 4BB721 operate?
Mode-S 4BB721 has broadcast 20 distinct callsigns, including DAH1208, DAH3201, DAH1209, DAH3200, DAH1226.