Apparatus

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sensors Mode-S transponder

151DBA

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73146 · BOEING 777-300ER

Hex
151DBA
Octal
05216672
Decimal
1,383,866
Country
RU
Tail
RA-73146
Type
B77W
No current signal · last broadcast 10h ago
Flights observed
196
Distinct callsigns
20
Country
RU
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 151DBA.

Country allocation

The ICAO 24-bit address 151DBA 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
AFL272 - 18 2026-07-13
AFL320 - 15 2026-07-12
AFL273 - 15 2026-07-14
AFL1731 - 13 2026-07-05
AFL639 Aeroflot Russian Airlines 9 2026-05-22
AFL1715 - 9 2026-06-18
AFL638 Aeroflot Russian Airlines 8 2026-05-22
AFL1745 - 8 2026-06-12
AFL288 Aeroflot Russian Airlines 7 2026-04-24
AFL321 Aeroflot Russian Airlines 6 2026-05-19
AFL1747 - 6 2026-07-07
AFL1739 Aeroflot Russian Airlines 6 2026-06-06
AFL1719 - 6 2026-07-09
AFL1713 Aeroflot Russian Airlines 6 2026-06-25
AFL1730 - 5 2026-07-02
AFL1714 Aeroflot Russian Airlines 5 2026-06-09
AFL1701 Aeroflot Russian Airlines 5 2026-06-12
AFL255 Aeroflot Russian Airlines 4 2026-05-09
AFL1735 - 4 2026-07-09
AFL1017 - 4 2026-06-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFL273 - Jul 14, 06:45 UTCJul 14, 10:30 UTC3h 45m
2026-07-13 AFL272 - Jul 13, 21:20 UTCJul 14, 04:35 UTC7h 15m
2026-07-13 AFL272 - Jul 13, 08:35 UTCJul 14, 04:35 UTC20h 0m
2026-07-13 AFL272 - Jul 13, 06:35 UTCJul 14, 04:35 UTC22h 0m
2026-07-12 AFL272 - Jul 12, 09:00 UTCJul 13, 04:25 UTC19h 25m
2026-07-12 AFL272 - Jul 12, 07:31 UTCJul 13, 04:25 UTC20h 55m
2026-07-12 AFL272 - Jul 12, 02:55 UTCJul 13, 02:30 UTC23h 35m
2026-07-12 AFL320 - Jul 12, 00:35 UTCJul 13, 00:30 UTC23h 55m
2026-07-11 AFL320 - Jul 11, 20:20 UTCJul 11, 21:10 UTC50m
2026-07-11 AFL320 - Jul 11, 00:15 UTCJul 11, 15:15 UTC15h 0m
2026-07-10 AFL320 - Jul 10, 07:00 UTCJul 11, 03:40 UTC20h 40m
2026-07-09 AFL1719 - Jul 9, 17:00 UTCJul 10, 08:10 UTC15h 10m
2026-07-09 AFL1735 - Jul 9, 10:50 UTCJul 10, 08:10 UTC21h 20m
2026-07-08 AFL1735 - Jul 8, 19:10 UTCJul 9, 17:25 UTC22h 15m
2026-07-08 AFL1734 SVO → SVO Jul 8, 17:50 UTCJul 8, 18:00 UTC10m
2026-07-07 AFL1727 - Jul 7, 21:25 UTCJul 8, 13:40 UTC16h 15m
2026-07-07 AFL1726 - Jul 7, 12:35 UTCJul 8, 12:30 UTC23h 55m
2026-07-07 AFL1747 - Jul 7, 11:20 UTCJul 7, 21:40 UTC10h 20m
2026-07-06 AFL1747 - Jul 6, 20:40 UTCJul 7, 12:35 UTC15h 55m
2026-07-06 AFL1757 - Jul 6, 07:15 UTCJul 6, 20:50 UTC13h 35m
2026-07-05 AFL1757 - Jul 5, 15:15 UTCJul 6, 07:45 UTC16h 30m
2026-07-05 AFL1731 - Jul 5, 07:00 UTCJul 5, 15:20 UTC8h 20m
2026-07-04 AFL1731 - Jul 4, 14:50 UTCJul 5, 08:30 UTC17h 40m
2026-07-04 AFL1731 - Jul 4, 06:55 UTCJul 4, 15:50 UTC8h 55m
2026-07-03 AFL1731 - Jul 3, 15:10 UTCJul 4, 08:25 UTC17h 15m
2026-07-03 AFL1731 - Jul 3, 07:05 UTCJul 3, 15:55 UTC8h 50m
2026-07-02 AFL1730 - Jul 2, 14:45 UTCJul 3, 08:05 UTC17h 20m
2026-07-02 AFL1730 - Jul 2, 07:05 UTCJul 2, 15:50 UTC8h 45m
2026-06-28 AFL1709 VVO → SVO Jun 28, 17:10 UTCJun 28, 17:30 UTC20m
2026-06-27 AFL1709 VVO → SVO Jun 27, 23:45 UTCJun 28, 16:39 UTC16h 55m
2026-06-26 AFL1747 UUS → SVO Jun 26, 10:55 UTCJun 26, 21:24 UTC10h 30m
2026-06-25 AFL1747 UUS → SVO Jun 25, 20:09 UTCJun 26, 11:24 UTC15h 15m
2026-06-25 AFL1713 KHV → SVO Jun 25, 14:44 UTCJun 25, 14:55 UTC10m
2026-06-24 AFL1713 KHV → SVO Jun 24, 23:00 UTCJun 25, 13:59 UTC15h 0m
2026-06-24 AFL1712 SVO → SVO Jun 24, 21:54 UTCJun 24, 22:10 UTC15m
2026-06-24 AFL1735 - Jun 24, 10:04 UTCJun 24, 10:39 UTC35m
2026-06-23 AFL1017 - Jun 23, 10:35 UTCJun 24, 10:30 UTC23h 55m
2026-06-23 AFL1017 - Jun 23, 10:24 UTCJun 23, 11:49 UTC1h 25m
2026-06-23 AFL1016 - Jun 23, 07:29 UTCJun 23, 08:20 UTC50m
2026-06-22 AFL273 - Jun 22, 08:35 UTCJun 23, 08:20 UTC23h 45m
2026-06-22 AFL273 - Jun 22, 06:39 UTCJun 22, 10:30 UTC3h 50m
2026-06-21 AFL272 - Jun 21, 19:34 UTCJun 22, 04:00 UTC8h 25m
2026-06-20 AFL1731 - Jun 20, 14:54 UTCJun 21, 08:04 UTC17h 10m
2026-06-19 AFL1719 KHV → SVO Jun 19, 16:55 UTCJun 20, 15:54 UTC23h 0m
2026-06-19 AFL1719 KHV → SVO Jun 19, 09:19 UTCJun 20, 08:14 UTC22h 55m
2026-06-18 AFL1715 - Jun 18, 19:40 UTCJun 19, 17:34 UTC21h 54m
2026-06-18 AFL1715 - Jun 18, 12:40 UTCJun 19, 10:29 UTC21h 49m
2026-06-18 AFL1715 - Jun 18, 12:15 UTCJun 19, 10:29 UTC22h 14m
2026-06-17 AFL1726 SVO → VVO Jun 17, 20:15 UTCJun 17, 20:30 UTC15m
2026-06-17 AFL1719 KHV → SVO Jun 17, 06:45 UTCJun 17, 08:00 UTC1h 15m

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-73146 page for operator, model, and routing details .

Mode-S 151DBA frequently asked

What is Mode-S code 151DBA?
151DBA is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73146.
Where is Mode-S 151DBA registered?
Mode-S code 151DBA is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DBA broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DBA, octal 05216672, decimal 1,383,866.
What flights does 151DBA operate?
Mode-S 151DBA has broadcast 20 distinct callsigns, including AFL272, AFL320, AFL273, AFL1731, AFL639.