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 Jul 26, 18:00 UTC
Flights observed
185
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 18:00 UTC

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
AFL209 Aeroflot Russian Airlines 21 2026-07-22
AFL204 - 17 2026-07-04
AFL221 Aeroflot Russian Airlines 16 2026-07-21
AFL208 Aeroflot Russian Airlines 15 2026-07-23
AFL220 Aeroflot Russian Airlines 13 2026-07-21
AFL205 - 11 2026-07-04
AFL643 Aeroflot Russian Airlines 6 2026-05-06
AFL637 Aeroflot Russian Airlines 5 2026-05-08
AFL635 Aeroflot Russian Airlines 5 2026-05-04
AFL1745 Aeroflot Russian Airlines 5 2026-06-10
AFL636 Aeroflot Russian Airlines 4 2026-05-06
AFL634 Aeroflot Russian Airlines 4 2026-05-07
AFL1715 - 4 2026-07-18
AFL1701 - 4 2026-07-17
AFL642 Aeroflot Russian Airlines 3 2026-05-06
AFL233 - 3 2026-06-20
AFL1719 - 3 2026-07-20
AFL1711 Aeroflot Russian Airlines 3 2026-06-02
SU208 - 2 2026-07-06
AFL320 Aeroflot Russian Airlines 2 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1709 VVO → SVO Jul 26, 17:30 UTCJul 26, 18:00 UTC30m
2026-07-26 AFL1709 VVO → SVO Jul 26, 15:45 UTCJul 26, 16:55 UTC1h 10m
2026-07-25 AFL325 MLE → SVO Jul 25, 01:40 UTCJul 25, 16:35 UTC14h 55m
2026-07-24 AFL324 SVO → MLE Jul 24, 11:25 UTCJul 25, 10:45 UTC23h 20m
2026-07-23 AFL208 SVO → PVG Jul 23, 20:30 UTCJul 24, 12:05 UTC15h 35m
2026-07-23 AFL208 SVO → PVG Jul 23, 08:45 UTCJul 23, 23:10 UTC14h 25m
2026-07-22 AFL208 SVO → PVG Jul 22, 20:50 UTCJul 23, 20:35 UTC23h 45m
2026-07-22 AFL208 SVO → PVG Jul 22, 18:45 UTCJul 23, 09:30 UTC14h 45m
2026-07-22 AFL209 PVG → SVO Jul 22, 11:10 UTCJul 23, 09:30 UTC22h 20m
2026-07-22 AFL208 SVO → PVG Jul 22, 10:25 UTCJul 23, 08:45 UTC22h 20m
2026-07-21 AFL208 SVO → PVG Jul 21, 20:55 UTCJul 22, 20:45 UTC23h 50m
2026-07-21 AFL208 SVO → PVG Jul 21, 18:50 UTCJul 22, 18:45 UTC23h 55m
2026-07-21 AFL208 SVO → PVG Jul 21, 17:45 UTCJul 22, 11:15 UTC17h 30m
2026-07-21 AFL221 CAN → SVO Jul 21, 11:00 UTCJul 21, 11:50 UTC50m
2026-07-21 AFL220 SVO → CAN Jul 21, 01:50 UTCJul 21, 02:35 UTC45m
2026-07-20 AFL220 SVO → CAN Jul 20, 20:00 UTCJul 20, 20:35 UTC35m
2026-07-20 AFL1719 - Jul 20, 08:25 UTCJul 20, 08:45 UTC20m
2026-07-20 AFL1719 - Jul 20, 07:30 UTCJul 20, 07:50 UTC20m
2026-07-18 AFL1719 - Jul 18, 16:50 UTCJul 19, 07:45 UTC14h 55m
2026-07-18 AFL1715 - Jul 18, 11:40 UTCJul 18, 12:25 UTC45m
2026-07-18 AFL1715 - Jul 18, 10:00 UTCJul 18, 10:25 UTC25m
2026-07-17 AFL1701 - Jul 17, 06:10 UTCJul 17, 07:25 UTC1h 15m
2026-07-16 AFL1701 - Jul 16, 06:50 UTCJul 17, 06:35 UTC23h 45m
2026-07-15 AFL1756 SVO → VVO Jul 15, 14:40 UTCJul 15, 15:05 UTC25m
2026-07-15 AFL1705 - Jul 15, 08:05 UTCJul 15, 09:20 UTC1h 15m
2026-07-14 AFL221 - Jul 14, 08:50 UTCJul 15, 08:35 UTC23h 44m
2026-07-13 AFL221 - Jul 13, 20:10 UTCJul 14, 09:30 UTC13h 20m
2026-07-12 AFL209 - Jul 12, 05:20 UTCJul 12, 18:25 UTC13h 5m
2026-07-12 AFL208 - Jul 12, 02:15 UTCJul 12, 02:30 UTC15m
2026-07-10 AFL1011 - Jul 10, 19:40 UTCJul 10, 20:35 UTC55m
2026-07-10 AFL1017 - Jul 10, 10:50 UTCJul 10, 17:10 UTC6h 20m
2026-07-10 AFL1016 - Jul 10, 07:35 UTCJul 10, 08:10 UTC35m
2026-07-08 AFL1025 - Jul 8, 02:40 UTCJul 8, 18:00 UTC15h 20m
2026-07-07 AFL209 - Jul 7, 09:15 UTCJul 8, 00:00 UTC14h 45m
2026-07-06 SU208 - Jul 6, 21:25 UTCJul 7, 09:55 UTC12h 30m
2026-07-06 SU208 - Jul 6, 11:15 UTCJul 7, 09:55 UTC22h 40m
2026-07-06 AFL221 - Jul 6, 08:20 UTCJul 6, 22:05 UTC13h 45m
2026-07-05 AFL221 - Jul 5, 19:50 UTCJul 6, 11:40 UTC15h 50m
2026-07-05 AFL221 - Jul 5, 09:05 UTCJul 6, 08:45 UTC23h 40m
2026-07-04 AFL220 - Jul 4, 19:55 UTCJul 5, 09:45 UTC13h 50m
2026-07-04 AFL205 - Jul 4, 04:15 UTCJul 4, 20:35 UTC16h 20m
2026-07-04 AFL204 - Jul 4, 01:05 UTCJul 4, 01:15 UTC10m
2026-07-03 AFL209 - Jul 3, 10:10 UTCJul 3, 22:35 UTC12h 25m
2026-07-02 AFL209 - Jul 2, 21:20 UTCJul 3, 11:00 UTC13h 40m
2026-07-02 AFL208 SVO → SVO Jul 2, 18:05 UTCJul 2, 18:20 UTC15m
2026-07-02 AFL221 - Jul 2, 08:45 UTCJul 2, 09:30 UTC45m
2026-07-02 AFL220 - Jul 2, 01:05 UTCJul 2, 01:15 UTC10m
2026-07-01 AFL209 - Jul 1, 09:45 UTCJul 1, 20:20 UTC10h 35m
2026-06-30 AFL209 - Jun 30, 20:50 UTCJul 1, 20:20 UTC23h 30m
2026-06-28 AFL1718 SVO → KHV Jun 28, 16:35 UTCJun 28, 16:45 UTC10m

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 Jul 26, 18:00 UTC.
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 AFL209, AFL204, AFL221, AFL208, AFL220.