Apparatus

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sensors Mode-S transponder

151D8C

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73100 · BOEING 737-800

Hex
151D8C
Octal
05216614
Decimal
1,383,820
Country
RU
Tail
RA-73100
Type
B738
No current signal · last broadcast Jul 26, 10:40 UTC
Flights observed
146
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 10:40 UTC

Last known position

Most recent position reported by Mode-S 151D8C.

Country allocation

The ICAO 24-bit address 151D8C 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
AFL2933 Aeroflot Russian Airlines 27 2026-07-26
AFL2932 Aeroflot Russian Airlines 10 2026-07-25
AFL1443 - 10 2026-07-13
AFL1455 - 8 2026-07-03
AFL1563 - 7 2026-07-05
AFL1442 - 7 2026-07-06
AFL1751 Aeroflot Russian Airlines 6 2026-06-09
AFL2936 Aeroflot Russian Airlines 5 2026-07-23
AFL1562 Aeroflot Russian Airlines 4 2026-06-03
AFL1491 Aeroflot Russian Airlines 4 2026-05-27
AFL7164 - 3 2026-05-29
AFL1538 - 3 2026-07-02
AFL1487 Aeroflot Russian Airlines 3 2026-05-04
AFL1454 Aeroflot Russian Airlines 3 2026-06-14
AFL1441 Aeroflot Russian Airlines 2 2026-06-06
AFL1365 Aeroflot Russian Airlines 2 2026-04-29
AFL1234 - 2 2026-04-15
AFL1040 - 2 2026-07-11
AFL7490 - 1 2026-05-06
AFL7165 - 1 2026-05-31

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL2933 UFA → AER Jul 26, 01:55 UTCJul 26, 10:40 UTC8h 46m
2026-07-25 AFL2932 AER → UFA Jul 25, 06:30 UTCJul 26, 02:25 UTC19h 55m
2026-07-25 AFL2932 AER → UFA Jul 25, 01:30 UTCJul 25, 06:45 UTC5h 15m
2026-07-24 AFL2933 UFA → AER Jul 24, 09:15 UTCJul 25, 06:45 UTC21h 30m
2026-07-24 AFL2933 UFA → AER Jul 24, 01:40 UTCJul 24, 10:15 UTC8h 35m
2026-07-23 AFL2932 AER → UFA Jul 23, 22:00 UTCJul 23, 22:15 UTC15m
2026-07-23 AFL2937 VOG → LED Jul 23, 18:40 UTCJul 23, 18:50 UTC10m
2026-07-23 AFL2936 LED → VOG Jul 23, 12:10 UTCJul 23, 12:35 UTC25m
2026-07-23 AFL2933 UFA → AER Jul 23, 06:05 UTCJul 23, 09:40 UTC3h 35m
2026-07-22 AFL2933 UFA → AER Jul 22, 11:20 UTCJul 23, 09:40 UTC22h 20m
2026-07-22 AFL2932 AER → UFA Jul 22, 01:15 UTCJul 22, 11:30 UTC10h 15m
2026-07-21 AFL2932 AER → UFA Jul 21, 21:40 UTCJul 21, 21:50 UTC10m
2026-07-21 AFL2933 UFA → AER Jul 21, 01:35 UTCJul 21, 09:55 UTC8h 20m
2026-07-20 AFL2932 AER → UFA Jul 20, 01:30 UTCJul 20, 02:05 UTC35m
2026-07-19 AFL2936 - Jul 19, 13:30 UTCJul 19, 13:55 UTC25m
2026-07-19 AFL2933 UFA → AER Jul 19, 00:20 UTCJul 19, 11:05 UTC10h 45m
2026-07-18 AFL2933 UFA → AER Jul 18, 11:05 UTCJul 19, 11:00 UTC23h 55m
2026-07-18 AFL2933 - Jul 18, 09:25 UTCJul 19, 08:00 UTC22h 35m
2026-07-18 AFL2933 - Jul 18, 07:05 UTCJul 19, 03:05 UTC20h 0m
2026-07-18 AFL2933 - Jul 18, 06:45 UTCJul 19, 03:05 UTC20h 20m
2026-07-17 AFL2932 - Jul 17, 22:00 UTCJul 17, 22:10 UTC10m
2026-07-17 AFL2933 - Jul 17, 09:15 UTCJul 17, 09:55 UTC40m
2026-07-16 AFL2933 - Jul 16, 01:25 UTCJul 16, 10:00 UTC8h 35m
2026-07-15 AFL068 SVO → SVO Jul 15, 17:25 UTCJul 15, 17:55 UTC30m
2026-07-13 AFL1443 - Jul 13, 08:10 UTCJul 13, 08:30 UTC20m
2026-07-11 AFL1040 - Jul 11, 12:00 UTCJul 11, 12:35 UTC35m
2026-07-10 AFL1564 - Jul 10, 12:20 UTCJul 10, 12:45 UTC25m
2026-07-08 AFL1476 - Jul 8, 11:55 UTCJul 9, 00:15 UTC12h 20m
2026-07-06 AFL1443 - Jul 6, 22:20 UTCJul 7, 04:00 UTC5h 40m
2026-07-06 AFL1442 SVO → SVO Jul 6, 18:50 UTCJul 6, 19:15 UTC25m
2026-07-05 AFL1563 - Jul 5, 02:20 UTCJul 5, 07:45 UTC5h 25m
2026-07-04 AFL1040 - Jul 4, 12:20 UTCJul 4, 12:50 UTC30m
2026-07-03 AFL1455 - Jul 3, 03:00 UTCJul 3, 20:45 UTC17h 45m
2026-07-02 AFL1455 - Jul 2, 21:45 UTCJul 3, 20:45 UTC23h 0m
2026-07-02 AFL1455 - Jul 2, 11:35 UTCJul 3, 03:30 UTC15h 55m
2026-07-02 AFL1538 - Jul 2, 09:30 UTCJul 2, 09:40 UTC10m
2026-07-01 AFL1538 - Jul 1, 14:25 UTCJul 2, 09:40 UTC19h 15m
2026-06-30 AFL1610 - Jun 30, 10:10 UTCJun 30, 10:35 UTC25m
2026-06-28 AFL1264 SVO → SVO Jun 28, 11:19 UTCJun 28, 12:15 UTC55m
2026-06-27 AFL1455 - Jun 27, 11:39 UTCJun 28, 03:50 UTC16h 10m
2026-06-24 AFL2933 UFA → AER Jun 24, 01:34 UTCJun 24, 09:45 UTC8h 10m
2026-06-23 AFL2933 UFA → AER Jun 23, 09:05 UTCJun 24, 09:00 UTC23h 55m
2026-06-23 AFL2933 UFA → AER Jun 23, 08:59 UTCJun 24, 06:50 UTC21h 50m
2026-06-23 AFL2933 UFA → AER Jun 23, 01:30 UTCJun 23, 09:49 UTC8h 20m
2026-06-22 AFL2932 AER → UFA Jun 22, 01:15 UTCJun 22, 01:44 UTC30m
2026-06-20 AFL2936 LED → VOG Jun 20, 12:24 UTCJun 20, 12:50 UTC25m
2026-06-20 AFL2933 UFA → AER Jun 20, 01:44 UTCJun 20, 10:09 UTC8h 25m
2026-06-19 AFL2932 AER → UFA Jun 19, 22:09 UTCJun 19, 22:30 UTC20m
2026-06-19 AFL2936 LED → VOG Jun 19, 14:09 UTCJun 19, 14:34 UTC25m
2026-06-19 AFL2933 UFA → AER Jun 19, 02:59 UTCJun 19, 11:49 UTC8h 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-73100 page for operator, model, and routing details .

Mode-S 151D8C frequently asked

What is Mode-S code 151D8C?
151D8C is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73100.
Where is Mode-S 151D8C registered?
Mode-S code 151D8C is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D8C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 10:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D8C, octal 05216614, decimal 1,383,820.
What flights does 151D8C operate?
Mode-S 151D8C has broadcast 20 distinct callsigns, including AFL2933, AFL2932, AFL1443, AFL1455, AFL1563.