Apparatus

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sensors Mode-S transponder

151DCB

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73163 · AIRBUS A-321

Hex
151DCB
Octal
05216713
Decimal
1,383,883
Country
RU
Tail
RA-73163
Type
A321
No current signal · last broadcast Jul 26, 22:45 UTC
Flights observed
165
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 22:45 UTC

Last known position

Most recent position reported by Mode-S 151DCB.

Country allocation

The ICAO 24-bit address 151DCB 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 15 2026-07-26
AFL2136 - 11 2026-07-10
AFL2135 Aeroflot Russian Airlines 10 2026-07-22
AFL1138 Aeroflot Russian Airlines 10 2026-07-23
AFL2134 Aeroflot Russian Airlines 9 2026-07-22
AFL1490 Aeroflot Russian Airlines 8 2026-07-18
AFL2131 Aeroflot Russian Airlines 7 2026-07-26
AFL1524 Aeroflot Russian Airlines 7 2026-07-18
AFL1480 - 7 2026-07-09
AFL1483 Aeroflot Russian Airlines 6 2026-07-21
AFL2137 - 5 2026-07-10
AFL1139 Aeroflot Russian Airlines 5 2026-06-04
AFL1136 Aeroflot Russian Airlines 5 2026-05-30
AFL1525 Aeroflot Russian Airlines 4 2026-06-05
AFL1491 - 4 2026-07-19
AFL1482 Aeroflot Russian Airlines 4 2026-07-26
AFL1481 Aeroflot Russian Airlines 4 2026-06-09
AFL1312 Aeroflot Russian Airlines 3 2026-05-15
AFL1781 - 2 2026-04-16
AFL1780 - 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1482 SVO → KJA Jul 26, 22:15 UTCJul 26, 22:45 UTC30m
2026-07-26 AFL2131 IST → SVO Jul 26, 18:35 UTCJul 26, 19:10 UTC35m
2026-07-26 AFL2131 IST → SVO Jul 26, 14:35 UTCJul 26, 15:10 UTC35m
2026-07-26 AFL2130 SVO → IST Jul 26, 12:15 UTCJul 26, 12:45 UTC30m
2026-07-26 AFL2130 SVO → IST Jul 26, 08:05 UTCJul 26, 08:30 UTC25m
2026-07-25 AFL1584 SVO → RGK Jul 25, 20:25 UTCJul 25, 20:35 UTC10m
2026-07-24 AFL2131 - Jul 24, 14:50 UTCJul 24, 15:20 UTC30m
2026-07-24 AFL2130 SVO → IST Jul 24, 12:30 UTCJul 24, 12:55 UTC25m
2026-07-23 AFL1138 SVO → AER Jul 23, 07:55 UTCJul 23, 08:15 UTC20m
2026-07-22 AFL2135 IST → SVO Jul 22, 20:55 UTCJul 22, 21:25 UTC30m
2026-07-22 AFL2134 SVO → IST Jul 22, 18:25 UTCJul 22, 18:50 UTC25m
2026-07-22 AFL1505 TJM → SVO Jul 22, 11:30 UTCJul 22, 12:05 UTC35m
2026-07-22 AFL2135 IST → SVO Jul 22, 00:30 UTCJul 22, 01:00 UTC30m
2026-07-21 AFL2135 IST → SVO Jul 21, 20:55 UTCJul 21, 21:25 UTC30m
2026-07-21 AFL2134 SVO → IST Jul 21, 18:10 UTCJul 21, 18:30 UTC20m
2026-07-21 AFL2134 SVO → IST Jul 21, 14:10 UTCJul 21, 15:05 UTC55m
2026-07-21 AFL1483 KJA → SVO Jul 21, 04:30 UTCJul 21, 07:40 UTC3h 10m
2026-07-21 AFL1482 SVO → KJA Jul 21, 01:50 UTCJul 21, 02:15 UTC25m
2026-07-20 AFL027 - Jul 20, 16:55 UTCJul 20, 17:15 UTC20m
2026-07-20 AFL1321 MMK → SVO Jul 20, 10:35 UTCJul 20, 11:00 UTC25m
2026-07-20 AFL1320 SVO → SVO Jul 20, 06:40 UTCJul 20, 07:05 UTC25m
2026-07-19 AFL1491 - Jul 19, 03:25 UTCJul 19, 18:35 UTC15h 10m
2026-07-18 AFL1524 SVO → RGK Jul 18, 21:45 UTCJul 18, 21:55 UTC10m
2026-07-18 AFL1491 - Jul 18, 10:45 UTCJul 18, 19:00 UTC8h 15m
2026-07-18 AFL1490 SVO → KJA Jul 18, 09:40 UTCJul 18, 10:00 UTC20m
2026-07-17 AFL1490 SVO → SVO Jul 17, 09:25 UTCJul 17, 09:55 UTC30m
2026-07-16 AFL1313 MRV → SVO Jul 16, 15:25 UTCJul 16, 15:45 UTC20m
2026-07-15 AFL2135 - Jul 15, 20:55 UTCJul 15, 21:25 UTC30m
2026-07-15 AFL2134 SVO → SVO Jul 15, 14:00 UTCJul 15, 14:15 UTC15m
2026-07-15 AFL1188 SVO → SVO Jul 15, 07:25 UTCJul 15, 08:00 UTC35m
2026-07-14 AFL2135 - Jul 14, 23:20 UTCJul 14, 23:50 UTC30m
2026-07-14 AFL2134 - Jul 14, 14:20 UTCJul 14, 14:30 UTC10m
2026-07-11 AFL1524 - Jul 11, 21:35 UTCJul 11, 22:10 UTC35m
2026-07-11 AFL1491 KJA → SVO Jul 11, 12:40 UTCJul 11, 18:20 UTC5h 40m
2026-07-11 AFL1271 - Jul 11, 06:55 UTCJul 11, 07:25 UTC30m
2026-07-10 AFL2137 - Jul 10, 13:40 UTCJul 10, 14:10 UTC30m
2026-07-10 AFL2136 - Jul 10, 11:35 UTCJul 10, 11:55 UTC20m
2026-07-09 AFL1480 - Jul 9, 12:25 UTCJul 10, 00:30 UTC12h 5m
2026-07-09 AFL1138 SVO → SVO Jul 9, 07:15 UTCJul 9, 07:45 UTC30m
2026-07-08 AFL1414 SVO → SVX Jul 8, 17:15 UTCJul 8, 17:50 UTC35m
2026-07-07 AFL2131 - Jul 7, 15:10 UTCJul 7, 15:40 UTC30m
2026-07-07 AFL2130 - Jul 7, 13:05 UTCJul 7, 13:20 UTC15m
2026-07-05 AFL1198 - Jul 5, 19:45 UTCJul 5, 20:10 UTC25m
2026-07-04 AFL1480 - Jul 4, 21:00 UTCJul 5, 00:30 UTC3h 30m
2026-07-04 AFL1138 - Jul 4, 07:10 UTCJul 4, 07:35 UTC25m
2026-07-02 AFL2135 - Jul 2, 21:15 UTCJul 2, 21:45 UTC30m
2026-07-02 AFL2134 - Jul 2, 17:50 UTCJul 2, 18:20 UTC30m
2026-07-01 AFL2135 - Jul 1, 21:05 UTCJul 1, 21:35 UTC30m
2026-07-01 AFL1152 SVO → SVO Jul 1, 04:35 UTCJul 1, 05:15 UTC40m
2026-06-30 AFL2155 IST → SVO Jun 30, 16:25 UTCJun 30, 18:25 UTC2h 0m

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-73163 page for operator, model, and routing details .

Mode-S 151DCB frequently asked

What is Mode-S code 151DCB?
151DCB is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73163.
Where is Mode-S 151DCB registered?
Mode-S code 151DCB is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DCB broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DCB, octal 05216713, decimal 1,383,883.
What flights does 151DCB operate?
Mode-S 151DCB has broadcast 20 distinct callsigns, including AFL2130, AFL2136, AFL2135, AFL1138, AFL2134.