Apparatus

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sensors Mode-S transponder

151DE5

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73189 · BOEING 737-800

Hex
151DE5
Octal
05216745
Decimal
1,383,909
Country
RU
Tail
RA-73189
Type
B738
No current signal · last broadcast Jul 24, 23:20 UTC
Flights observed
108
Distinct callsigns
20
Country
RU
Last broadcast
Jul 24, 23:20 UTC

Last known position

Most recent position reported by Mode-S 151DE5.

Country allocation

The ICAO 24-bit address 151DE5 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
SDM6875 Rossiya - Russian Airlines 25 2026-07-23
SDM6876 Rossiya - Russian Airlines 21 2026-07-24
SDM6726 - 10 2026-07-19
SDM6895 Rossiya - Russian Airlines 6 2026-07-19
SDM6725 - 6 2026-07-16
SDM6985 - 4 2026-07-12
SDM6896 Rossiya - Russian Airlines 4 2026-07-19
SDM6623 Rossiya - Russian Airlines 4 2026-06-25
SDM6551 - 4 2026-06-12
SDM6476 - 4 2026-07-12
SDM6986 - 2 2026-07-05
SDM6791 - 2 2026-07-18
SDM6783 - 2 2026-06-14
SDM6747 Rossiya - Russian Airlines 2 2026-06-07
SDM6552 - 2 2026-06-29
SDM6987 Rossiya - Russian Airlines 1 2026-05-05
SDM6826 - 1 2026-07-01
SDM6821 Rossiya - Russian Airlines 1 2026-04-19
SDM6792 - 1 2026-07-06
SDM6784 Rossiya - Russian Airlines 1 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 SDM6876 AER → KJA Jul 24, 11:25 UTCJul 24, 23:20 UTC11h 55m
2026-07-23 SDM6875 KJA → AER Jul 23, 19:20 UTCJul 24, 11:50 UTC16h 30m
2026-07-22 SDM6876 AER → KJA Jul 22, 21:25 UTCJul 23, 19:20 UTC21h 55m
2026-07-22 SDM6876 AER → KJA Jul 22, 10:20 UTCJul 22, 22:00 UTC11h 40m
2026-07-21 SDM6876 AER → KJA Jul 21, 20:35 UTCJul 22, 10:25 UTC13h 50m
2026-07-21 SDM6875 - Jul 21, 09:55 UTCJul 21, 21:30 UTC11h 35m
2026-07-19 SDM6726 - Jul 19, 15:20 UTCJul 20, 10:15 UTC18h 55m
2026-07-19 SDM6726 - Jul 19, 15:00 UTCJul 20, 10:15 UTC19h 15m
2026-07-19 SDM6726 - Jul 19, 11:20 UTCJul 20, 10:15 UTC22h 55m
2026-07-19 SDM6896 FRU → KJA Jul 19, 10:30 UTCJul 20, 04:40 UTC18h 10m
2026-07-19 SDM6895 KJA → FRU Jul 19, 05:40 UTCJul 20, 04:40 UTC23h 0m
2026-07-18 SDM6895 KJA → FRU Jul 18, 14:30 UTCJul 19, 11:15 UTC20h 45m
2026-07-18 SDM6895 KJA → FRU Jul 18, 08:35 UTCJul 19, 07:05 UTC22h 30m
2026-07-18 SDM6791 - Jul 18, 02:50 UTCJul 18, 14:45 UTC11h 55m
2026-07-16 SDM6725 - Jul 16, 12:49 UTCJul 16, 22:45 UTC9h 55m
2026-07-12 SDM6476 - Jul 12, 14:20 UTCJul 12, 18:01 UTC3h 40m
2026-07-12 SDM6985 - Jul 12, 01:45 UTCJul 12, 12:25 UTC10h 40m
2026-07-11 SDM6637 - Jul 11, 14:25 UTCJul 11, 14:35 UTC10m
2026-07-06 SDM6792 - Jul 6, 18:35 UTCJul 7, 08:10 UTC13h 35m
2026-07-06 SDM6791 - Jul 6, 04:00 UTCJul 6, 19:15 UTC15h 15m
2026-07-05 SDM6726 - Jul 5, 21:40 UTCJul 6, 19:15 UTC21h 35m
2026-07-05 SDM6726 - Jul 5, 15:55 UTCJul 6, 04:40 UTC12h 45m
2026-07-05 SDM6986 - Jul 5, 02:30 UTCJul 5, 13:25 UTC10h 55m
2026-07-04 SDM6985 - Jul 4, 08:30 UTCJul 5, 03:20 UTC18h 50m
2026-07-04 SDM6985 - Jul 4, 03:20 UTCJul 5, 03:15 UTC23h 55m
2026-07-02 SDM6725 - Jul 2, 15:00 UTCJul 3, 01:05 UTC10h 5m
2026-07-01 SDM6826 - Jul 1, 13:25 UTCJul 1, 23:10 UTC9h 45m
2026-06-29 SDM6552 - Jun 29, 13:59 UTCJun 29, 23:39 UTC9h 40m
2026-06-28 SDM6876 - Jun 28, 23:54 UTCJun 29, 23:14 UTC23h 20m
2026-06-28 SDM6876 - Jun 28, 09:45 UTCJun 29, 01:00 UTC15h 15m
2026-06-27 SDM6876 - Jun 27, 11:20 UTCJun 28, 10:44 UTC23h 25m
2026-06-26 SDM6875 - Jun 26, 22:44 UTCJun 27, 11:55 UTC13h 10m
2026-06-26 SDM6875 - Jun 26, 11:34 UTCJun 27, 11:14 UTC23h 40m
2026-06-25 SDM6623 KJA → SYX Jun 25, 12:04 UTCJun 25, 19:59 UTC7h 55m
2026-06-25 SDM6476 - Jun 25, 06:00 UTCJun 25, 06:14 UTC15m
2026-06-25 SDM6476 - Jun 25, 02:10 UTCJun 25, 05:25 UTC3h 15m
2026-06-23 SDM6875 - Jun 23, 11:59 UTCJun 24, 00:05 UTC12h 5m
2026-06-22 SDM6875 - Jun 22, 21:59 UTCJun 23, 16:24 UTC18h 25m
2026-06-21 SDM6726 - Jun 21, 05:44 UTCJun 21, 22:34 UTC16h 50m
2026-06-18 SDM6726 - Jun 18, 14:55 UTCJun 18, 22:20 UTC7h 25m
2026-06-15 SDM6875 KJA → AER Jun 15, 10:00 UTCJun 15, 21:55 UTC11h 55m
2026-06-14 SDM6875 KJA → AER Jun 14, 21:20 UTCJun 15, 21:14 UTC23h 55m
2026-06-14 SDM6784 OSS → KJA Jun 14, 15:25 UTCJun 15, 10:45 UTC19h 19m
2026-06-14 SDM6783 - Jun 14, 14:25 UTCJun 15, 10:45 UTC20h 20m
2026-06-12 SDM6552 - Jun 12, 09:45 UTCJun 13, 02:15 UTC16h 30m
2026-06-12 SDM6551 - Jun 12, 06:05 UTCJun 13, 02:15 UTC20h 10m
2026-06-11 SDM6551 - Jun 11, 19:20 UTCJun 12, 18:40 UTC23h 20m
2026-06-11 SDM6551 - Jun 11, 12:10 UTCJun 12, 10:15 UTC22h 6m
2026-06-11 SDM6551 - Jun 11, 09:45 UTCJun 12, 06:45 UTC21h 1m
2026-06-11 SDM6475 LED → KJA Jun 11, 08:35 UTCJun 12, 06:45 UTC22h 11m

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-73189 page for operator, model, and routing details .

Mode-S 151DE5 frequently asked

What is Mode-S code 151DE5?
151DE5 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73189.
Where is Mode-S 151DE5 registered?
Mode-S code 151DE5 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DE5 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 23:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DE5, octal 05216745, decimal 1,383,909.
What flights does 151DE5 operate?
Mode-S 151DE5 has broadcast 20 distinct callsigns, including SDM6875, SDM6876, SDM6726, SDM6895, SDM6725.