Apparatus

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sensors Mode-S transponder

151DBB

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73147 · BOEING 777-300ER

Hex
151DBB
Octal
05216673
Decimal
1,383,867
Country
RU
Tail
RA-73147
Type
B77W
No current signal · last broadcast 1h ago
Flights observed
84
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 151DBB.

Country allocation

The ICAO 24-bit address 151DBB 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
AFL204 Aeroflot Russian Airlines 11 2026-05-26
AFL209 Aeroflot Russian Airlines 9 2026-04-29
AFL643 Aeroflot Russian Airlines 6 2026-05-06
AFL637 Aeroflot Russian Airlines 5 2026-05-08
AFL635 Aeroflot Russian Airlines 5 2026-05-04
AFL221 Aeroflot Russian Airlines 5 2026-05-22
AFL205 Aeroflot Russian Airlines 5 2026-05-27
AFL636 Aeroflot Russian Airlines 4 2026-05-06
AFL634 Aeroflot Russian Airlines 4 2026-05-07
AFL642 Aeroflot Russian Airlines 3 2026-05-06
AFL320 Aeroflot Russian Airlines 2 2026-05-11
AFL289 Aeroflot Russian Airlines 2 2026-05-10
AFL233 Aeroflot Russian Airlines 2 2026-05-01
AFL232 Aeroflot Russian Airlines 2 2026-04-30
AFL225 Aeroflot Russian Airlines 2 2026-04-18
AFL1715 Aeroflot Russian Airlines 2 2026-04-27
AFL1713 Aeroflot Russian Airlines 2 2026-04-20
AFL1553 Aeroflot Russian Airlines 2 2026-05-09
AFL585 Aeroflot Russian Airlines 1 2026-05-13
AFL584 Aeroflot Russian Airlines 1 2026-05-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 AFL2144 SVO → AYT May 30, 12:10 UTCMay 30, 12:45 UTC35m
2026-05-27 AFL205 PKX → SVO May 27, 11:00 UTCMay 27, 11:20 UTC20m
2026-05-27 AFL205 PKX → SVO May 27, 03:59 UTCMay 27, 10:20 UTC6h 20m
2026-05-26 AFL205 PKX → SVO May 26, 05:20 UTCMay 26, 22:15 UTC16h 55m
2026-05-26 AFL204 SVO → PKX May 26, 00:44 UTCMay 26, 01:00 UTC15m
2026-05-25 AFL204 SVO → PKX May 25, 19:15 UTCMay 25, 22:00 UTC2h 45m
2026-05-25 AFL204 SVO → PKX May 25, 18:25 UTCMay 25, 18:35 UTC10m
2026-05-25 AFL1723 KHV → SVO May 25, 04:20 UTCMay 25, 04:45 UTC25m
2026-05-24 AFL1722 SVO → KHV May 24, 13:15 UTCMay 24, 13:35 UTC20m
2026-05-23 AFL1705 VVO → SVO May 23, 16:35 UTCMay 24, 09:35 UTC17h 0m
2026-05-23 AFL1704 SVO → VVO May 23, 15:35 UTCMay 23, 15:55 UTC20m
2026-05-22 AFL204 SVO → PKX May 22, 19:30 UTCMay 23, 10:45 UTC15h 14m
2026-05-22 AFL204 SVO → PKX May 22, 12:00 UTCMay 23, 10:45 UTC22h 44m
2026-05-22 AFL221 CAN → SVO May 22, 09:20 UTCMay 23, 08:00 UTC22h 40m
2026-05-21 AFL221 CAN → SVO May 21, 17:50 UTCMay 22, 12:30 UTC18h 39m
2026-05-17 AFL1734 SVO → PKC May 17, 19:10 UTCMay 18, 10:35 UTC15h 25m
2026-05-13 AFL585 SVO → MLE May 13, 11:00 UTCMay 13, 17:35 UTC6h 35m
2026-05-13 AFL584 NRT → SVO May 13, 01:00 UTCMay 13, 03:15 UTC2h 15m
2026-05-12 AFL205 PKX → SVO May 12, 11:25 UTCMay 12, 11:50 UTC25m
2026-05-11 AFL204 SVO → PKX May 11, 13:55 UTCMay 12, 08:15 UTC18h 21m
2026-05-11 AFL204 SVO → PKX May 11, 08:50 UTCMay 12, 08:15 UTC23h 26m
2026-05-11 AFL204 SVO → PKX May 11, 02:50 UTCMay 11, 21:55 UTC19h 5m
2026-05-11 AFL320 SVO → MLE May 11, 01:05 UTCMay 11, 21:55 UTC20h 51m
2026-05-11 AFL320 SVO → MLE May 11, 00:05 UTCMay 11, 21:55 UTC21h 51m
2026-05-10 AFL289 SVO → MAD May 10, 15:35 UTCMay 10, 16:00 UTC25m
2026-05-10 AFL289 SVO → MAD May 10, 01:14 UTCMay 10, 14:54 UTC13h 40m
2026-05-09 AFL1553 OVB → SVO May 9, 08:35 UTCMay 9, 09:05 UTC30m
2026-05-09 AFL1553 OVB → SVO May 9, 07:25 UTCMay 9, 07:55 UTC30m
2026-05-08 AFL637 HKT → OVB May 8, 08:05 UTCMay 8, 19:20 UTC11h 15m
2026-05-07 AFL634 KJA → HKT May 7, 08:50 UTCMay 8, 08:44 UTC23h 55m
2026-05-06 AFL643 KHV → HKT May 6, 15:30 UTCMay 7, 08:55 UTC17h 25m
2026-05-06 AFL642 HKT → KHV May 6, 11:25 UTCMay 7, 08:55 UTC21h 30m
2026-05-06 AFL642 HKT → KHV May 6, 06:55 UTCMay 7, 04:00 UTC21h 4m
2026-05-06 AFL636 OVB → HKT May 6, 01:40 UTCMay 6, 23:45 UTC22h 4m
2026-05-04 AFL637 HKT → OVB May 4, 22:10 UTCMay 5, 09:55 UTC11h 45m
2026-05-04 AFL635 HKT → KJA May 4, 07:00 UTCMay 5, 04:20 UTC21h 21m
2026-05-04 AFL635 HKT → KJA May 4, 02:50 UTCMay 4, 23:15 UTC20h 26m
2026-05-04 AFL635 HKT → KJA May 4, 02:19 UTCMay 4, 23:15 UTC20h 56m
2026-05-03 AFL643 KHV → HKT May 3, 13:00 UTCMay 4, 08:20 UTC19h 20m
2026-05-03 AFL643 KHV → HKT May 3, 08:50 UTCMay 4, 08:20 UTC23h 30m
2026-05-03 AFL643 KHV → HKT May 3, 04:50 UTCMay 4, 03:09 UTC22h 20m
2026-05-02 AFL636 OVB → HKT May 2, 23:00 UTCMay 3, 22:45 UTC23h 44m
2026-05-01 AFL1701 VVO → SVO May 1, 14:10 UTCMay 2, 06:25 UTC16h 15m
2026-05-01 AFL233 DEL → SVO May 1, 00:20 UTCMay 1, 14:20 UTC14h 0m
2026-04-30 AFL232 SVO → DEL Apr 30, 08:55 UTCApr 30, 21:35 UTC12h 40m
2026-04-29 AFL209 PVG → SVO Apr 29, 20:25 UTCApr 30, 09:45 UTC13h 19m
2026-04-29 AFL233 DEL → SVO Apr 29, 01:20 UTCApr 29, 21:05 UTC19h 46m
2026-04-28 AFL232 SVO → DEL Apr 28, 06:45 UTCApr 28, 21:40 UTC14h 55m
2026-04-27 AFL1715 KHV → SVO Apr 27, 11:45 UTCApr 27, 12:10 UTC25m
2026-04-27 AFL1715 KHV → SVO Apr 27, 09:30 UTCApr 27, 09:55 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-73147 page for operator, model, and routing details .

Mode-S 151DBB frequently asked

What is Mode-S code 151DBB?
151DBB is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73147.
Where is Mode-S 151DBB registered?
Mode-S code 151DBB is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DBB 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 151DBB, octal 05216673, decimal 1,383,867.
What flights does 151DBB operate?
Mode-S 151DBB has broadcast 20 distinct callsigns, including AFL204, AFL209, AFL643, AFL637, AFL635.