Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151DB1

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73137 · BOEING 777-300ER

Hex
151DB1
Octal
05216661
Decimal
1,383,857
Country
RU
Tail
RA-73137
Type
B77W
No current signal · last broadcast 15h ago
Flights observed
169
Distinct callsigns
20
Country
RU
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 151DB1.

Country allocation

The ICAO 24-bit address 151DB1 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 2026-05-19
AFL221 Aeroflot Russian Airlines 14 2026-05-30
AFL325 Aeroflot Russian Airlines 13 2026-05-09
AFL208 - 11 2026-06-24
AFL205 Aeroflot Russian Airlines 9 2026-05-28
AFL220 Aeroflot Russian Airlines 8 2026-05-29
AFL1709 - 8 2026-07-11
AFL320 - 4 2026-07-09
AFL273 - 4 2026-06-29
AFL272 - 4 2026-06-28
AFL233 - 4 2026-07-09
AFL204 Aeroflot Russian Airlines 4 2026-05-28
AFL1755 Aeroflot Russian Airlines 4 2026-05-27
AFL324 - 3 2026-06-27
AFL321 - 3 2026-07-10
AFL271 Aeroflot Russian Airlines 3 2026-04-18
AFL270 Aeroflot Russian Airlines 3 2026-04-17
AFL232 - 3 2026-07-08
AFL225 Aeroflot Russian Airlines 3 2026-04-15
AFL1713 Aeroflot Russian Airlines 3 2026-06-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AFL1013 - Jul 13, 17:15 UTCJul 13, 18:00 UTC45m
2026-07-13 AFL1012 - Jul 13, 14:20 UTCJul 13, 15:00 UTC40m
2026-07-12 AFL1012 - Jul 12, 16:10 UTCJul 12, 16:50 UTC40m
2026-07-11 AFL1709 - Jul 11, 16:20 UTCJul 12, 16:15 UTC23h 55m
2026-07-11 AFL1709 - Jul 11, 15:25 UTCJul 11, 16:35 UTC1h 10m
2026-07-10 AFL321 - Jul 10, 00:15 UTCJul 10, 13:55 UTC13h 40m
2026-07-09 AFL320 - Jul 9, 20:05 UTCJul 9, 20:45 UTC40m
2026-07-09 AFL233 - Jul 9, 03:15 UTCJul 9, 07:40 UTC4h 25m
2026-07-08 AFL232 - Jul 8, 23:30 UTCJul 9, 00:10 UTC40m
2026-07-08 AFL232 SVO → SVO Jul 8, 18:55 UTCJul 8, 19:25 UTC30m
2026-07-07 AFL1739 - Jul 7, 20:55 UTCJul 8, 14:00 UTC17h 5m
2026-07-07 AFL1738 - Jul 7, 19:35 UTCJul 7, 19:45 UTC10m
2026-07-07 AFL320 - Jul 7, 00:15 UTCJul 7, 13:40 UTC13h 25m
2026-07-04 AFL1015 - Jul 4, 13:00 UTCJul 4, 14:00 UTC1h 0m
2026-07-03 AFL1013 - Jul 3, 16:55 UTCJul 4, 10:05 UTC17h 10m
2026-07-03 AFL1012 - Jul 3, 14:15 UTCJul 3, 14:50 UTC35m
2026-07-01 AFL1709 VVO → SVO Jul 1, 00:15 UTCJul 1, 16:55 UTC16h 40m
2026-06-30 AFL1709 VVO → SVO Jun 30, 15:35 UTCJul 1, 00:20 UTC8h 45m
2026-06-29 AFL273 - Jun 29, 06:40 UTCJun 29, 14:19 UTC7h 40m
2026-06-28 AFL272 - Jun 28, 11:59 UTCJun 29, 04:34 UTC16h 35m
2026-06-27 AFL1712 - Jun 27, 21:34 UTCJun 28, 12:25 UTC14h 50m
2026-06-27 AFL1712 - Jun 27, 16:35 UTCJun 28, 12:25 UTC19h 50m
2026-06-27 AFL324 - Jun 27, 02:39 UTCJun 27, 21:55 UTC19h 15m
2026-06-27 AFL324 - Jun 27, 01:39 UTCJun 27, 21:55 UTC20h 15m
2026-06-24 AFL208 - Jun 24, 20:49 UTCJun 25, 09:29 UTC12h 40m
2026-06-24 AFL208 - Jun 24, 13:44 UTCJun 25, 09:29 UTC19h 45m
2026-06-24 AFL321 - Jun 24, 02:24 UTCJun 24, 21:34 UTC19h 10m
2026-06-24 AFL321 - Jun 24, 00:59 UTCJun 24, 21:34 UTC20h 35m
2026-06-23 AFL320 - Jun 23, 23:59 UTCJun 24, 21:34 UTC21h 35m
2026-06-23 AFL320 - Jun 23, 10:19 UTCJun 24, 09:59 UTC23h 40m
2026-06-23 AFL273 - Jun 23, 08:20 UTCJun 24, 08:14 UTC23h 55m
2026-06-23 AFL273 - Jun 23, 06:34 UTCJun 24, 03:24 UTC20h 50m
2026-06-22 AFL272 - Jun 22, 12:19 UTCJun 23, 04:14 UTC15h 55m
2026-06-20 AFL1709 VVO → SVO Jun 20, 15:49 UTCJun 20, 16:55 UTC1h 5m
2026-06-19 AFL1709 VVO → SVO Jun 19, 15:24 UTCJun 19, 17:14 UTC1h 50m
2026-06-18 AFL1709 VVO → SVO Jun 18, 16:25 UTCJun 19, 16:14 UTC23h 49m
2026-06-17 AFL1709 VVO → SVO Jun 17, 23:40 UTCJun 18, 16:55 UTC17h 15m
2026-06-17 AFL1713 KHV → SVO Jun 17, 11:05 UTCJun 17, 23:55 UTC12h 50m
2026-06-15 AFL208 - Jun 15, 20:45 UTCJun 16, 09:50 UTC13h 5m
2026-06-15 AFL208 SVO → SVO Jun 15, 17:30 UTCJun 15, 17:50 UTC20m
2026-06-15 AFL1003 KGD → SVO Jun 15, 11:15 UTCJun 15, 13:05 UTC1h 50m
2026-06-15 AFL1002 SVO → KGD Jun 15, 07:20 UTCJun 15, 09:15 UTC1h 55m
2026-06-14 AFL1003 KGD → SVO Jun 14, 12:20 UTCJun 14, 13:25 UTC1h 5m
2026-06-14 AFL1002 SVO → KGD Jun 14, 09:45 UTCJun 14, 10:15 UTC30m
2026-06-13 AFL1139 AER → SVO Jun 13, 18:35 UTCJun 13, 19:00 UTC25m
2026-06-13 AFL1138 SVO → AER Jun 13, 08:50 UTCJun 13, 09:15 UTC25m
2026-06-12 AFL1713 KHV → SVO Jun 12, 11:05 UTCJun 12, 22:20 UTC11h 15m
2026-06-11 AFL1713 KHV → SVO Jun 11, 21:50 UTCJun 12, 13:50 UTC16h 1m
2026-06-10 AFL1701 VVO → SVO Jun 10, 14:30 UTCJun 11, 07:55 UTC17h 25m
2026-06-10 AFL1700 SVO → VVO Jun 10, 13:20 UTCJun 10, 13:45 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-73137 page for operator, model, and routing details .

Mode-S 151DB1 frequently asked

What is Mode-S code 151DB1?
151DB1 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73137.
Where is Mode-S 151DB1 registered?
Mode-S code 151DB1 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DB1 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DB1, octal 05216661, decimal 1,383,857.
What flights does 151DB1 operate?
Mode-S 151DB1 has broadcast 20 distinct callsigns, including AFL209, AFL221, AFL325, AFL208, AFL205.