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
Broadcasting now · callsign AFL298 · 37,000 ft
Flights observed
60
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

Current position

15203A is currently broadcasting. Map zoomed to live position.

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 Aeroflot Russian Airlines 6 2026-05-20
AFL650 Aeroflot Russian Airlines 4 2026-04-19
AFL837 Aeroflot Russian Airlines 3 2026-05-11
AFL655 Aeroflot Russian Airlines 3 2026-04-19
AFL652 Aeroflot Russian Airlines 3 2026-04-26
AFL651 Aeroflot Russian Airlines 3 2026-04-17
AFL233 Aeroflot Russian Airlines 3 2026-05-27
AFL863 Aeroflot Russian Airlines 2 2026-05-08
AFL860 Aeroflot Russian Airlines 2 2026-05-06
AFL831 Aeroflot Russian Airlines 2 2026-04-18
AFL830 Aeroflot Russian Airlines 2 2026-04-17
AFL654 Aeroflot Russian Airlines 2 2026-04-17
AFL653 Aeroflot Russian Airlines 2 2026-04-26
AFL637 Aeroflot Russian Airlines 2 2026-05-22
AFL636 Aeroflot Russian Airlines 2 2026-05-20
AFL232 Aeroflot Russian Airlines 2 2026-05-26
AFL224 Aeroflot Russian Airlines 2 2026-05-24
AFL865 Aeroflot Russian Airlines 1 2026-05-07
AFL861 Aeroflot Russian Airlines 1 2026-05-08
AFL855 Aeroflot Russian Airlines 1 2026-04-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL298 - May 29, 21:10 UTCMay 30, 04:15 UTC7h 5m
2026-05-27 AFL293 SGN → SVO May 27, 17:25 UTCMay 28, 09:10 UTC15h 45m
2026-05-27 AFL233 DEL → SVO May 27, 08:40 UTCMay 27, 08:55 UTC15m
2026-05-27 AFL233 DEL → SVO May 27, 03:14 UTCMay 27, 03:54 UTC40m
2026-05-26 AFL232 SVO → DEL May 26, 19:40 UTCMay 27, 00:55 UTC5h 15m
2026-05-26 AFL233 DEL → SVO May 26, 02:49 UTCMay 26, 07:49 UTC5h 0m
2026-05-25 AFL232 SVO → DEL May 25, 18:55 UTCMay 26, 00:09 UTC5h 15m
2026-05-24 AFL224 SVO → SYX May 24, 11:05 UTCMay 25, 05:10 UTC18h 5m
2026-05-24 AFL224 SVO → SYX May 24, 10:05 UTCMay 25, 05:10 UTC19h 5m
2026-05-23 AFL1553 OVB → SVO May 23, 05:25 UTCMay 23, 08:05 UTC2h 40m
2026-05-22 AFL637 HKT → OVB May 22, 08:05 UTCMay 22, 19:20 UTC11h 15m
2026-05-20 AFL643 KHV → HKT May 20, 11:25 UTCMay 21, 08:00 UTC20h 35m
2026-05-20 AFL643 KHV → HKT May 20, 06:40 UTCMay 21, 03:55 UTC21h 15m
2026-05-20 AFL636 OVB → HKT May 20, 01:20 UTCMay 20, 23:35 UTC22h 16m
2026-05-19 AFL637 HKT → OVB May 19, 04:05 UTCMay 19, 15:50 UTC11h 45m
2026-05-18 AFL634 KJA → HKT May 18, 08:35 UTCMay 19, 05:00 UTC20h 24m
2026-05-18 AFL635 HKT → KJA May 18, 08:01 UTCMay 19, 05:00 UTC20h 59m
2026-05-17 AFL643 KHV → HKT May 17, 23:00 UTCMay 18, 09:20 UTC10h 20m
2026-05-17 AFL643 KHV → HKT May 17, 13:31 UTCMay 18, 09:20 UTC19h 50m
2026-05-17 AFL643 KHV → HKT May 17, 09:00 UTCMay 18, 03:50 UTC18h 50m
2026-05-17 AFL643 KHV → HKT May 17, 04:45 UTCMay 18, 03:50 UTC23h 5m
2026-05-16 AFL636 OVB → HKT May 16, 23:05 UTCMay 17, 13:40 UTC14h 35m
2026-05-11 AFL837 SVO → LED May 11, 17:10 UTCMay 12, 08:40 UTC15h 30m
2026-05-11 AFL837 SVO → LED May 11, 12:10 UTCMay 12, 08:40 UTC20h 31m
2026-05-10 AFL621 BKK → LED May 10, 08:15 UTCMay 10, 12:30 UTC4h 15m
2026-05-09 AFL620 LED → BKK May 9, 12:10 UTCMay 10, 05:34 UTC17h 25m
2026-05-08 AFL861 SYX → LED May 8, 22:55 UTCMay 9, 16:00 UTC17h 5m
2026-05-08 AFL863 SYX → KZN May 8, 13:35 UTCMay 8, 16:50 UTC3h 15m
2026-05-07 AFL863 SYX → KZN May 7, 21:30 UTCMay 8, 16:50 UTC19h 20m
2026-05-07 AFL865 SYX → UFA May 7, 04:05 UTCMay 7, 21:55 UTC17h 50m
2026-05-06 AFL860 LED → SVO May 6, 12:30 UTCMay 7, 04:45 UTC16h 14m
2026-05-06 AFL860 LED → SVO May 6, 10:55 UTCMay 6, 11:15 UTC20m
2026-05-05 AFL299 CXR → SVO May 5, 01:50 UTCMay 5, 14:50 UTC13h 0m
2026-04-28 AFL598 SVO → CXR Apr 28, 03:20 UTCApr 28, 13:00 UTC9h 40m
2026-04-26 AFL653 BKK → SVX Apr 26, 08:50 UTCApr 26, 20:55 UTC12h 5m
2026-04-26 AFL652 SVX → BKK Apr 26, 02:55 UTCApr 26, 06:50 UTC3h 55m
2026-04-25 AFL652 SVX → BKK Apr 25, 09:35 UTCApr 26, 06:50 UTC21h 15m
2026-04-24 AFL837 SVO → LED Apr 24, 18:45 UTCApr 25, 10:05 UTC15h 20m
2026-04-23 AFL627 HKT → SVX Apr 23, 22:55 UTCApr 24, 09:40 UTC10h 45m
2026-04-23 AFL653 BKK → SVX Apr 23, 06:15 UTCApr 23, 10:35 UTC4h 20m
2026-04-22 AFL652 SVX → BKK Apr 22, 22:50 UTCApr 23, 03:00 UTC4h 10m
2026-04-21 AFL855 SYX → SVX Apr 21, 11:20 UTCApr 22, 04:45 UTC17h 25m
2026-04-21 AFL1410 SVO → SVX Apr 21, 04:50 UTCApr 21, 05:10 UTC20m
2026-04-19 AFL655 BKK → KHV Apr 19, 12:20 UTCApr 20, 04:25 UTC16h 5m
2026-04-19 AFL650 OVB → BKK Apr 19, 03:10 UTCApr 19, 09:25 UTC6h 15m
2026-04-18 AFL831 CXR → OVB Apr 18, 09:10 UTCApr 18, 23:40 UTC14h 30m
2026-04-17 AFL830 OVB → CXR Apr 17, 13:45 UTCApr 17, 14:15 UTC30m
2026-04-17 AFL651 BKK → OVB Apr 17, 09:20 UTCApr 17, 09:55 UTC35m
2026-04-17 AFL651 BKK → OVB Apr 17, 03:20 UTCApr 17, 04:00 UTC40m
2026-04-17 AFL654 KHV → BKK Apr 17, 00:20 UTCApr 17, 00:44 UTC25m

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?
Yes. Mode-S 15203A is currently airborne.
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, AFL650, AFL837, AFL655, AFL652.