Apparatus

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sensors Mode-S transponder

151DCD

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73165 · AIRBUS A-321

Hex
151DCD
Octal
05216715
Decimal
1,383,885
Country
RU
Tail
RA-73165
Type
A321
No current signal · last broadcast Jul 26, 18:10 UTC
Flights observed
198
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 18:10 UTC

Last known position

Most recent position reported by Mode-S 151DCD.

Country allocation

The ICAO 24-bit address 151DCD 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
AFL2130 Aeroflot Russian Airlines 17 2026-07-22
AFL1524 - 16 2026-07-16
AFL2134 Aeroflot Russian Airlines 15 2026-07-23
AFL2154 Aeroflot Russian Airlines 13 2026-07-25
AFL2155 Aeroflot Russian Airlines 11 2026-07-25
AFL1481 Aeroflot Russian Airlines 10 2026-05-22
AFL2135 Aeroflot Russian Airlines 8 2026-07-24
AFL1525 - 8 2026-07-17
AFL2137 - 7 2026-07-20
AFL2136 - 7 2026-07-11
AFL2131 - 6 2026-07-22
AFL2118 Aeroflot Russian Airlines 5 2026-07-26
AFL1490 - 5 2026-07-16
AFL1480 Aeroflot Russian Airlines 5 2026-07-26
AFL2119 Aeroflot Russian Airlines 3 2026-07-26
AFL1491 Aeroflot Russian Airlines 3 2026-06-18
AFL1312 Aeroflot Russian Airlines 3 2026-06-08
AFL1138 Aeroflot Russian Airlines 3 2026-05-25
AFL1130 Aeroflot Russian Airlines 3 2026-06-12
AFL010 - 3 2026-06-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1480 SVO → KJA Jul 26, 17:50 UTCJul 26, 18:10 UTC20m
2026-07-26 AFL2119 BJV → SVO Jul 26, 05:05 UTCJul 26, 05:45 UTC40m
2026-07-26 AFL2118 SVO → BJV Jul 26, 02:50 UTCJul 26, 03:40 UTC50m
2026-07-25 AFL2118 SVO → BJV Jul 25, 22:40 UTCJul 25, 23:10 UTC30m
2026-07-25 AFL2155 IST → SVO Jul 25, 16:15 UTCJul 25, 18:15 UTC2h 0m
2026-07-25 AFL2154 SVO → IST Jul 25, 12:40 UTCJul 25, 14:45 UTC2h 5m
2026-07-24 AFL2135 IST → SVO Jul 24, 01:50 UTCJul 24, 02:10 UTC20m
2026-07-23 AFL2135 IST → SVO Jul 23, 22:20 UTCJul 23, 22:50 UTC30m
2026-07-23 AFL2134 SVO → IST Jul 23, 19:50 UTCJul 23, 20:20 UTC30m
2026-07-22 AFL2131 - Jul 22, 14:45 UTCJul 22, 15:10 UTC25m
2026-07-22 AFL2130 SVO → IST Jul 22, 12:15 UTCJul 22, 12:45 UTC30m
2026-07-21 AFL2130 SVO → IST Jul 21, 14:40 UTCJul 22, 12:45 UTC22h 5m
2026-07-21 AFL2130 SVO → IST Jul 21, 12:00 UTCJul 21, 12:30 UTC30m
2026-07-21 AFL2130 SVO → IST Jul 21, 08:00 UTCJul 21, 08:30 UTC30m
2026-07-20 AFL2137 - Jul 20, 13:15 UTCJul 20, 13:45 UTC30m
2026-07-19 AFL2155 IST → SVO Jul 19, 16:10 UTCJul 20, 10:25 UTC18h 15m
2026-07-19 AFL2154 SVO → IST Jul 19, 00:20 UTCJul 19, 14:25 UTC14h 5m
2026-07-18 AFL2154 SVO → IST Jul 18, 16:10 UTCJul 19, 14:25 UTC22h 15m
2026-07-18 AFL615 EVN → KRR Jul 18, 10:20 UTCJul 18, 11:00 UTC40m
2026-07-18 AFL1860 SVO → EVN Jul 18, 08:15 UTCJul 18, 08:25 UTC10m
2026-07-17 AFL2155 IST → SVO Jul 17, 20:29 UTCJul 17, 21:10 UTC40m
2026-07-17 AFL2155 IST → SVO Jul 17, 16:19 UTCJul 17, 16:59 UTC40m
2026-07-17 AFL2154 SVO → IST Jul 17, 14:10 UTCJul 17, 14:50 UTC40m
2026-07-17 AFL1525 - Jul 17, 07:25 UTCJul 17, 08:00 UTC35m
2026-07-17 AFL1525 - Jul 17, 01:15 UTCJul 17, 06:45 UTC5h 30m
2026-07-16 AFL1524 - Jul 16, 21:40 UTCJul 16, 22:05 UTC25m
2026-07-16 AFL1490 - Jul 16, 09:10 UTCJul 16, 15:55 UTC6h 45m
2026-07-16 AFL1525 - Jul 16, 06:05 UTCJul 16, 06:30 UTC25m
2026-07-15 AFL2130 SVO → SVO Jul 15, 08:10 UTCJul 15, 08:25 UTC15m
2026-07-12 AFL2155 - Jul 12, 17:10 UTCJul 12, 19:05 UTC1h 55m
2026-07-12 AFL2154 - Jul 12, 14:45 UTCJul 12, 15:35 UTC50m
2026-07-11 AFL1880 - Jul 11, 21:00 UTCJul 11, 21:45 UTC45m
2026-07-11 AFL2137 - Jul 11, 17:00 UTCJul 11, 17:25 UTC25m
2026-07-11 AFL2137 - Jul 11, 13:20 UTCJul 11, 13:45 UTC25m
2026-07-11 AFL2136 - Jul 11, 10:35 UTCJul 11, 10:55 UTC20m
2026-07-10 AFL2119 - Jul 10, 04:40 UTCJul 10, 06:35 UTC1h 55m
2026-07-10 AFL2118 - Jul 10, 02:30 UTCJul 10, 03:10 UTC40m
2026-07-08 AFL1524 SVO → SVO Jul 8, 21:25 UTCJul 8, 21:45 UTC20m
2026-07-08 AFL1887 - Jul 8, 16:10 UTCJul 8, 16:30 UTC20m
2026-07-07 AFL2155 - Jul 7, 16:10 UTCJul 7, 16:50 UTC40m
2026-07-07 AFL2154 - Jul 7, 01:10 UTCJul 7, 14:35 UTC13h 25m
2026-07-06 AFL1524 SVO → SVO Jul 6, 21:30 UTCJul 6, 21:50 UTC20m
2026-07-06 AFL2131 - Jul 6, 14:40 UTCJul 6, 15:10 UTC30m
2026-07-06 AFL2130 - Jul 6, 12:05 UTCJul 6, 12:35 UTC30m
2026-07-05 AFL2155 - Jul 5, 16:25 UTCJul 6, 12:35 UTC20h 10m
2026-07-04 AFL2154 - Jul 4, 21:20 UTCJul 5, 14:50 UTC17h 30m
2026-07-04 AFL2119 - Jul 4, 06:45 UTCJul 4, 18:25 UTC11h 40m
2026-07-04 AFL2118 - Jul 4, 04:25 UTCJul 4, 05:15 UTC50m
2026-07-04 AFL2118 - Jul 4, 00:05 UTCJul 4, 00:25 UTC20m
2026-07-03 AFL2155 IST → SVO Jul 3, 16:10 UTCJul 3, 16:55 UTC45m

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-73165 page for operator, model, and routing details .

Mode-S 151DCD frequently asked

What is Mode-S code 151DCD?
151DCD is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73165.
Where is Mode-S 151DCD registered?
Mode-S code 151DCD is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DCD broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DCD, octal 05216715, decimal 1,383,885.
What flights does 151DCD operate?
Mode-S 151DCD has broadcast 20 distinct callsigns, including AFL2130, AFL1524, AFL2134, AFL2154, AFL2155.