Apparatus

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sensors Mode-S transponder

151D85

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73093 · BOEING 737-800

Hex
151D85
Octal
05216605
Decimal
1,383,813
Country
RU
Tail
RA-73093
Type
B738
No current signal · last broadcast Jul 26, 13:25 UTC
Flights observed
232
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 13:25 UTC

Last known position

Most recent position reported by Mode-S 151D85.

Country allocation

The ICAO 24-bit address 151D85 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
AFL814 - 31 2026-07-13
AFL644 - 27 2026-07-12
AFL856 - 24 2026-07-23
AFL851 Aeroflot Russian Airlines 22 2026-07-25
AFL850 - 22 2026-07-18
AFL857 - 17 2026-06-30
AFL645 - 16 2026-07-13
AFL853 Aeroflot Russian Airlines 11 2026-07-25
AFL815 - 8 2026-07-12
AFL852 Aeroflot Russian Airlines 6 2026-07-26
AFL2124 - 5 2026-07-03
AFL1460 Aeroflot Russian Airlines 4 2026-06-04
AFL1869 Aeroflot Russian Airlines 3 2026-06-15
AFL7779 - 2 2026-07-14
AFL7775 Aeroflot Russian Airlines 2 2026-04-28
AFL521 Aeroflot Russian Airlines 2 2026-06-24
AFL2125 - 2 2026-07-03
AFL2122 - 2 2026-07-14
AFL1481 Aeroflot Russian Airlines 2 2026-04-22
AFL1480 Aeroflot Russian Airlines 2 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL852 OVB → SYX Jul 26, 13:00 UTCJul 26, 13:25 UTC25m
2026-07-25 AFL853 SYX → OVB Jul 25, 14:30 UTCJul 26, 02:35 UTC12h 5m
2026-07-25 AFL851 SYX → KHV Jul 25, 01:20 UTCJul 25, 20:55 UTC19h 35m
2026-07-24 AFL851 SYX → KHV Jul 24, 23:25 UTCJul 25, 20:55 UTC21h 30m
2026-07-24 AFL851 SYX → KHV Jul 24, 15:50 UTCJul 25, 14:40 UTC22h 50m
2026-07-24 AFL851 SYX → KHV Jul 24, 13:15 UTCJul 25, 02:00 UTC12h 45m
2026-07-23 AFL856 - Jul 23, 21:25 UTCJul 24, 16:05 UTC18h 40m
2026-07-23 AFL856 - Jul 23, 17:45 UTCJul 24, 16:05 UTC22h 20m
2026-07-21 AFL1752 SVO → YKS Jul 21, 19:20 UTCJul 21, 19:35 UTC15m
2026-07-19 AFL853 SYX → OVB Jul 19, 12:40 UTCJul 20, 02:40 UTC14h 0m
2026-07-18 AFL850 - Jul 18, 14:45 UTCJul 19, 03:00 UTC12h 15m
2026-07-18 AFL850 - Jul 18, 01:25 UTCJul 18, 17:30 UTC16h 6m
2026-07-17 AFL850 - Jul 17, 23:00 UTCJul 18, 17:30 UTC18h 31m
2026-07-17 AFL851 - Jul 17, 15:44 UTCJul 18, 15:05 UTC23h 21m
2026-07-17 AFL856 - Jul 17, 13:25 UTCJul 18, 01:39 UTC12h 15m
2026-07-17 AFL856 - Jul 17, 00:04 UTCJul 17, 23:14 UTC23h 10m
2026-07-16 AFL856 - Jul 16, 21:45 UTCJul 17, 16:00 UTC18h 15m
2026-07-16 AFL852 - Jul 16, 12:44 UTCJul 17, 00:20 UTC11h 35m
2026-07-15 AFL2123 - Jul 15, 15:05 UTCJul 15, 16:50 UTC1h 45m
2026-07-14 AFL2122 - Jul 14, 20:40 UTCJul 15, 13:35 UTC16h 54m
2026-07-14 AFL2122 - Jul 14, 17:45 UTCJul 15, 13:35 UTC19h 49m
2026-07-14 AFL7779 - Jul 14, 01:45 UTCJul 14, 21:05 UTC19h 20m
2026-07-13 AFL7779 - Jul 13, 20:15 UTCJul 14, 18:25 UTC22h 10m
2026-07-13 AFL856 - Jul 13, 09:20 UTCJul 14, 04:30 UTC19h 10m
2026-07-13 AFL856 - Jul 13, 09:10 UTCJul 14, 04:30 UTC19h 20m
2026-07-13 AFL645 - Jul 13, 08:01 UTCJul 13, 08:15 UTC15m
2026-07-13 AFL814 - Jul 13, 05:55 UTCJul 13, 06:05 UTC10m
2026-07-12 AFL814 - Jul 12, 10:15 UTCJul 13, 05:10 UTC18h 55m
2026-07-12 AFL815 - Jul 12, 09:05 UTCJul 12, 09:20 UTC15m
2026-07-12 AFL644 - Jul 12, 07:10 UTCJul 12, 07:25 UTC15m
2026-07-11 AFL644 - Jul 11, 12:45 UTCJul 12, 06:05 UTC17h 20m
2026-07-11 AFL644 - Jul 11, 09:50 UTCJul 12, 06:05 UTC20h 15m
2026-07-11 AFL645 - Jul 11, 08:25 UTCJul 11, 08:35 UTC10m
2026-07-11 AFL814 - Jul 11, 04:45 UTCJul 11, 06:10 UTC1h 25m
2026-07-10 AFL814 - Jul 10, 09:20 UTCJul 11, 06:10 UTC20h 50m
2026-07-10 AFL814 - Jul 10, 04:40 UTCJul 10, 06:10 UTC1h 30m
2026-07-09 AFL814 - Jul 9, 09:20 UTCJul 10, 06:10 UTC20h 50m
2026-07-09 AFL644 - Jul 9, 02:55 UTCJul 9, 07:25 UTC4h 30m
2026-07-08 AFL644 - Jul 8, 09:50 UTCJul 9, 07:25 UTC21h 35m
2026-07-08 AFL644 - Jul 8, 07:20 UTCJul 9, 07:15 UTC23h 55m
2026-07-08 AFL645 - Jul 8, 05:25 UTCJul 9, 03:20 UTC21h 55m
2026-07-06 AFL1477 - Jul 6, 18:45 UTCJul 7, 01:45 UTC7h 0m
2026-07-05 AFL2169 - Jul 5, 17:35 UTCJul 5, 19:25 UTC1h 50m
2026-07-04 AFL2168 SVO → DLM Jul 4, 23:05 UTCJul 5, 15:55 UTC16h 50m
2026-07-03 AFL2125 - Jul 3, 13:20 UTCJul 3, 15:05 UTC1h 45m
2026-07-03 AFL2124 - Jul 3, 11:30 UTCJul 3, 11:55 UTC25m
2026-07-03 AFL2124 - Jul 3, 10:15 UTCJul 3, 10:50 UTC35m
2026-07-01 AFL856 - Jul 1, 13:10 UTCJul 2, 02:55 UTC13h 45m
2026-06-30 AFL857 - Jun 30, 23:05 UTCJul 1, 15:55 UTC16h 50m
2026-06-30 AFL857 - Jun 30, 16:25 UTCJul 1, 13:25 UTC21h 0m

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-73093 page for operator, model, and routing details .

Mode-S 151D85 frequently asked

What is Mode-S code 151D85?
151D85 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73093.
Where is Mode-S 151D85 registered?
Mode-S code 151D85 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D85 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 13:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D85, octal 05216605, decimal 1,383,813.
What flights does 151D85 operate?
Mode-S 151D85 has broadcast 20 distinct callsigns, including AFL814, AFL644, AFL856, AFL851, AFL850.