Apparatus

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sensors Mode-S transponder

15203A

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73786 · AIRBUS A-330-300

Hex
15203A
Octal
05220072
Decimal
1,384,506
Country
RU
Tail
RA-73786
Type
A333
No current signal · last broadcast 1h ago
Flights observed
121
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 15203A.

Country allocation

The ICAO 24-bit address 15203A falls within the block assigned to Russia (RU) by ICAO Annex 10, Volume III. Every aircraft registered in Russia 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
AFL643 - 10 2026-06-18
AFL837 - 8 2026-07-10
AFL642 Aeroflot Russian Airlines 7 2026-06-17
AFL832 Aeroflot Russian Airlines 6 2026-06-05
AFL650 Aeroflot Russian Airlines 6 2026-06-07
AFL655 Aeroflot Russian Airlines 5 2026-06-07
AFL651 Aeroflot Russian Airlines 5 2026-06-05
AFL232 - 5 2026-06-21
AFL855 - 4 2026-07-05
AFL831 Aeroflot Russian Airlines 4 2026-06-06
AFL830 Aeroflot Russian Airlines 4 2026-06-05
AFL637 Aeroflot Russian Airlines 4 2026-06-19
AFL233 - 4 2026-06-22
AFL654 Aeroflot Russian Airlines 3 2026-06-01
AFL652 Aeroflot Russian Airlines 3 2026-04-26
AFL627 - 3 2026-07-10
AFL224 - 3 2026-06-28
AFL863 Aeroflot Russian Airlines 2 2026-05-08
AFL860 Aeroflot Russian Airlines 2 2026-05-06
AFL734 - 2 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFL7775 - Jul 14, 06:35 UTCJul 14, 07:15 UTC40m
2026-07-10 AFL837 - Jul 10, 19:00 UTCJul 11, 10:30 UTC15h 31m
2026-07-10 AFL836 - Jul 10, 08:35 UTCJul 11, 05:25 UTC20h 50m
2026-07-10 AFL627 - Jul 10, 07:00 UTCJul 11, 05:25 UTC22h 25m
2026-07-10 AFL627 - Jul 10, 00:35 UTCJul 11, 00:05 UTC23h 30m
2026-07-09 AFL626 - Jul 9, 22:35 UTCJul 10, 19:25 UTC20h 50m
2026-07-07 AFL854 - Jul 7, 13:05 UTCJul 8, 06:00 UTC16h 55m
2026-07-05 AFL1701 - Jul 5, 14:15 UTCJul 6, 06:45 UTC16h 30m
2026-07-05 AFL855 - Jul 5, 00:30 UTCJul 5, 14:15 UTC13h 45m
2026-07-04 AFL855 - Jul 4, 11:50 UTCJul 5, 01:05 UTC13h 15m
2026-06-30 AFL855 - Jun 30, 11:15 UTCJul 1, 04:30 UTC17h 15m
2026-06-28 AFL224 - Jun 28, 10:04 UTCJun 29, 03:29 UTC17h 25m
2026-06-26 AFL007 LED → LED Jun 26, 07:05 UTCJun 26, 07:35 UTC30m
2026-06-24 AFL628 - Jun 24, 23:34 UTCJun 25, 10:59 UTC11h 25m
2026-06-24 AFL628 - Jun 24, 18:20 UTCJun 24, 18:29 UTC10m
2026-06-24 AFL735 - Jun 24, 09:55 UTCJun 24, 13:14 UTC3h 20m
2026-06-23 AFL734 - Jun 23, 10:35 UTCJun 24, 07:15 UTC20h 40m
2026-06-23 AFL734 - Jun 23, 09:24 UTCJun 24, 07:15 UTC21h 50m
2026-06-23 AFL732 - Jun 23, 05:00 UTCJun 23, 10:55 UTC5h 55m
2026-06-22 AFL026 - Jun 22, 16:45 UTCJun 22, 17:50 UTC1h 5m
2026-06-22 AFL233 - Jun 22, 02:50 UTCJun 22, 03:30 UTC40m
2026-06-21 AFL232 - Jun 21, 23:24 UTCJun 22, 00:10 UTC45m
2026-06-21 AFL232 - Jun 21, 02:40 UTCJun 22, 00:10 UTC21h 30m
2026-06-20 AFL232 - Jun 20, 19:55 UTCJun 20, 23:59 UTC4h 5m
2026-06-19 AFL637 HKT → OVB Jun 19, 10:44 UTCJun 19, 21:30 UTC10h 45m
2026-06-18 AFL643 - Jun 18, 03:50 UTCJun 18, 09:30 UTC5h 40m
2026-06-17 AFL643 - Jun 17, 12:35 UTCJun 18, 09:30 UTC20h 55m
2026-06-17 AFL642 HKT → KHV Jun 17, 12:20 UTCJun 18, 09:30 UTC21h 10m
2026-06-17 AFL642 HKT → KHV Jun 17, 08:35 UTCJun 18, 08:30 UTC23h 55m
2026-06-17 AFL642 HKT → KHV Jun 17, 07:50 UTCJun 18, 05:50 UTC22h 0m
2026-06-17 AFL642 HKT → KHV Jun 17, 01:50 UTCJun 17, 14:30 UTC12h 40m
2026-06-16 AFL637 HKT → OVB Jun 16, 03:45 UTCJun 16, 15:45 UTC12h 0m
2026-06-15 AFL634 KJA → HKT Jun 15, 08:35 UTCJun 16, 04:30 UTC19h 55m
2026-06-15 AFL635 HKT → KJA Jun 15, 08:00 UTCJun 16, 04:30 UTC20h 30m
2026-06-15 AFL643 - Jun 15, 01:30 UTCJun 15, 09:20 UTC7h 50m
2026-06-14 AFL643 - Jun 14, 10:50 UTCJun 15, 09:20 UTC22h 30m
2026-06-14 AFL642 HKT → KHV Jun 14, 09:15 UTCJun 15, 08:29 UTC23h 14m
2026-06-14 AFL642 HKT → KHV Jun 14, 04:50 UTCJun 15, 03:30 UTC22h 39m
2026-06-13 AFL642 HKT → KHV Jun 13, 23:05 UTCJun 14, 11:25 UTC12h 20m
2026-06-13 AFL1552 SVO → OVB Jun 13, 13:40 UTCJun 13, 14:10 UTC30m
2026-06-09 AFL837 SVO → LED Jun 9, 04:15 UTCJun 9, 21:10 UTC16h 55m
2026-06-08 AFL837 SVO → LED Jun 8, 23:15 UTCJun 9, 21:10 UTC21h 55m
2026-06-08 AFL837 SVO → LED Jun 8, 13:25 UTCJun 9, 09:50 UTC20h 25m
2026-06-08 AFL837 SVO → LED Jun 8, 12:00 UTCJun 9, 09:50 UTC21h 50m
2026-06-07 AFL655 BKK → KHV Jun 7, 12:10 UTCJun 8, 03:30 UTC15h 20m
2026-06-07 AFL650 OVB → BKK Jun 7, 02:55 UTCJun 7, 08:50 UTC5h 55m
2026-06-06 AFL831 CXR → OVB Jun 6, 09:24 UTCJun 6, 23:19 UTC13h 55m
2026-06-06 AFL831 CXR → OVB Jun 6, 02:40 UTCJun 6, 23:19 UTC20h 40m
2026-06-05 AFL832 KUF → SVO Jun 5, 23:45 UTCJun 6, 18:04 UTC18h 20m
2026-06-05 AFL832 KUF → SVO Jun 5, 18:45 UTCJun 6, 18:04 UTC23h 20m

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 RA-73786 page for operator, model, and routing details .

Mode-S 15203A frequently asked

What is Mode-S code 15203A?
15203A is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73786.
Where is Mode-S 15203A registered?
Mode-S code 15203A is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 15203A broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 15203A, octal 05220072, decimal 1,384,506.
What flights does 15203A operate?
Mode-S 15203A has broadcast 20 distinct callsigns, including AFL643, AFL837, AFL642, AFL832, AFL650.