Apparatus

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sensors Mode-S transponder

151DE2

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73186 · AIRBUS A-319

Hex
151DE2
Octal
05216742
Decimal
1,383,906
Country
RU
Tail
RA-73186
Type
A319
No current signal · last broadcast 1h ago
Flights observed
104
Distinct callsigns
20
Country
RU
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 151DE2.

Country allocation

The ICAO 24-bit address 151DE2 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
SDM6725 - 8 2026-05-20
SDM6442 Rossiya - Russian Airlines 6 2026-05-28
SDM6621 Rossiya - Russian Airlines 5 2026-05-07
SDM6726 - 4 2026-05-21
SDM6722 Rossiya - Russian Airlines 4 2026-05-18
SDM6565 Rossiya - Russian Airlines 4 2026-04-23
SDM6973 Rossiya - Russian Airlines 3 2026-05-26
SDM6923 Rossiya - Russian Airlines 3 2026-04-18
SDM6796 Rossiya - Russian Airlines 3 2026-05-19
SDM6721 Rossiya - Russian Airlines 3 2026-05-17
SDM6622 Rossiya - Russian Airlines 3 2026-05-07
SDM6572 Rossiya - Russian Airlines 3 2026-05-27
SDM6531 Rossiya - Russian Airlines 3 2026-04-26
SDM6464 Rossiya - Russian Airlines 3 2026-05-29
SDM6332 Rossiya - Russian Airlines 3 2026-04-28
SDM6962 - 2 2026-04-16
SDM6961 Rossiya - Russian Airlines 2 2026-04-16
SDM6926 Rossiya - Russian Airlines 2 2026-04-27
SDM6569 Rossiya - Russian Airlines 2 2026-04-18
SDM6532 Rossiya - Russian Airlines 2 2026-04-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SDM6115 LED → VOG May 30, 13:35 UTCMay 30, 19:55 UTC6h 20m
2026-05-29 SDM6450 TJM → LED May 29, 15:30 UTCMay 30, 09:40 UTC18h 10m
2026-05-29 SDM6464 CEK → LED May 29, 10:35 UTCMay 30, 09:40 UTC23h 5m
2026-05-29 SDM6464 CEK → LED May 29, 06:05 UTCMay 29, 15:35 UTC9h 30m
2026-05-28 SDM6461 LED → CEK May 28, 23:15 UTCMay 29, 02:45 UTC3h 30m
2026-05-28 SDM6442 SGC → LED May 28, 03:30 UTCMay 28, 03:40 UTC10m
2026-05-27 SDM6441 LED → SGC May 27, 20:50 UTCMay 28, 01:40 UTC4h 50m
2026-05-27 SDM6572 KJA → LED May 27, 18:20 UTCMay 27, 18:30 UTC10m
2026-05-27 SDM6572 KJA → LED May 27, 05:04 UTCMay 27, 17:45 UTC12h 40m
2026-05-26 SDM6973 LED → GYD May 26, 12:20 UTCMay 26, 13:24 UTC1h 5m
2026-05-26 SDM6324 KGD → LED May 26, 08:54 UTCMay 26, 10:05 UTC1h 10m
2026-05-26 SDM6323 LED → KGD May 26, 06:20 UTCMay 26, 07:10 UTC50m
2026-05-25 SDM6065 LED → MCX May 25, 07:05 UTCMay 26, 06:29 UTC23h 25m
2026-05-25 SDM6462 CEK → LED May 25, 02:25 UTCMay 25, 07:30 UTC5h 5m
2026-05-24 SDM6572 KJA → LED May 24, 14:10 UTCMay 24, 18:50 UTC4h 40m
2026-05-22 SDM6784 OSS → KJA May 22, 14:10 UTCMay 22, 21:05 UTC6h 55m
2026-05-21 SDM6726 - May 21, 13:40 UTCMay 21, 20:50 UTC7h 10m
2026-05-20 SDM6726 - May 20, 20:35 UTCMay 21, 20:30 UTC23h 55m
2026-05-20 SDM6725 - May 20, 20:05 UTCMay 21, 14:20 UTC18h 15m
2026-05-20 SDM6725 - May 20, 14:55 UTCMay 21, 14:20 UTC23h 25m
2026-05-19 SDM6796 FRU → KJA May 19, 20:35 UTCMay 20, 20:30 UTC23h 56m
2026-05-19 SDM6796 FRU → KJA May 19, 20:05 UTCMay 20, 15:30 UTC19h 26m
2026-05-19 SDM6796 FRU → KJA May 19, 14:55 UTCMay 19, 21:35 UTC6h 40m
2026-05-18 SDM6795 KJA → FRU May 18, 20:35 UTCMay 19, 20:30 UTC23h 55m
2026-05-18 SDM6722 ALA → KJA May 18, 19:30 UTCMay 19, 16:10 UTC20h 40m
2026-05-18 SDM6722 ALA → KJA May 18, 15:00 UTCMay 18, 21:00 UTC5h 59m
2026-05-17 SDM6721 KJA → ALA May 17, 20:35 UTCMay 18, 20:30 UTC23h 54m
2026-05-17 SDM6721 KJA → ALA May 17, 20:20 UTCMay 18, 16:25 UTC20h 5m
2026-05-17 SDM6913 KJA → CEK May 17, 15:10 UTCMay 17, 21:01 UTC5h 50m
2026-05-15 SDM6725 - May 15, 15:45 UTCMay 15, 22:30 UTC6h 45m
2026-05-14 SDM6726 - May 14, 22:35 UTCMay 15, 22:30 UTC23h 54m
2026-05-14 SDM6725 - May 14, 22:00 UTCMay 15, 16:40 UTC18h 39m
2026-05-14 SDM6725 - May 14, 16:35 UTCMay 15, 16:30 UTC23h 54m
2026-05-14 SDM6726 - May 14, 16:15 UTCMay 14, 22:35 UTC6h 20m
2026-05-13 SDM6722 ALA → KJA May 13, 20:35 UTCMay 14, 16:40 UTC20h 5m
2026-05-13 SDM6722 ALA → KJA May 13, 19:40 UTCMay 14, 16:40 UTC21h 0m
2026-05-13 SDM6721 KJA → ALA May 13, 10:15 UTCMay 13, 21:00 UTC10h 45m
2026-05-12 SDM6725 - May 12, 10:15 UTCMay 12, 22:40 UTC12h 25m
2026-05-11 SDM6842 SGC → KJA May 11, 20:25 UTCMay 12, 08:35 UTC12h 10m
2026-05-08 SDM6725 - May 8, 15:50 UTCMay 8, 22:15 UTC6h 25m
2026-05-07 SDM6725 - May 7, 22:10 UTCMay 8, 16:25 UTC18h 15m
2026-05-07 SDM6622 PKX → KJA May 7, 20:00 UTCMay 8, 16:25 UTC20h 25m
2026-05-07 SDM6621 KJA → PKX May 7, 17:50 UTCMay 7, 18:00 UTC10m
2026-05-06 SDM6621 KJA → PKX May 6, 22:00 UTCMay 7, 16:25 UTC18h 25m
2026-05-06 SDM6622 PKX → KJA May 6, 19:55 UTCMay 7, 16:25 UTC20h 30m
2026-05-06 SDM6621 KJA → PKX May 6, 17:30 UTCMay 6, 17:45 UTC14m
2026-05-06 SDM2452 UUD → KJA May 6, 10:20 UTCMay 6, 16:05 UTC5h 45m
2026-05-06 SDM6882 IKT → KJA May 6, 04:20 UTCMay 6, 04:35 UTC15m
2026-05-04 SDM6622 PKX → KJA May 4, 19:40 UTCMay 4, 22:05 UTC2h 25m
2026-05-04 SDM6621 KJA → PKX May 4, 16:00 UTCMay 4, 17:50 UTC1h 50m

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-73186 page for operator, model, and routing details .

Mode-S 151DE2 frequently asked

What is Mode-S code 151DE2?
151DE2 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73186.
Where is Mode-S 151DE2 registered?
Mode-S code 151DE2 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DE2 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 151DE2, octal 05216742, decimal 1,383,906.
What flights does 151DE2 operate?
Mode-S 151DE2 has broadcast 20 distinct callsigns, including SDM6725, SDM6442, SDM6621, SDM6726, SDM6722.