Apparatus

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sensors Mode-S transponder

151D8D

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73101 · BOEING 737-800

Hex
151D8D
Octal
05216615
Decimal
1,383,821
Country
RU
Tail
RA-73101
Type
B738
No current signal · last broadcast Jul 25, 04:10 UTC
Flights observed
137
Distinct callsigns
20
Country
RU
Last broadcast
Jul 25, 04:10 UTC

Last known position

Most recent position reported by Mode-S 151D8D.

Country allocation

The ICAO 24-bit address 151D8D 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
AFL1454 Aeroflot Russian Airlines 15 2026-07-24
AFL2933 - 13 2026-07-15
AFL1455 Aeroflot Russian Airlines 10 2026-07-20
AFL1751 - 9 2026-06-12
AFL1442 Aeroflot Russian Airlines 7 2026-07-17
AFL1487 - 6 2026-07-17
AFL1444 - 5 2026-06-30
AFL1750 Aeroflot Russian Airlines 4 2026-07-19
AFL1562 Aeroflot Russian Airlines 4 2026-07-19
AFL1461 Aeroflot Russian Airlines 4 2026-04-26
AFL1443 - 4 2026-06-19
AFL1445 Aeroflot Russian Airlines 3 2026-06-07
AFL1213 Aeroflot Russian Airlines 3 2026-05-26
AFL1563 Aeroflot Russian Airlines 2 2026-06-06
AFL1549 Aeroflot Russian Airlines 2 2026-05-23
AFL1548 Aeroflot Russian Airlines 2 2026-05-24
AFL1538 - 2 2026-07-07
AFL1490 Aeroflot Russian Airlines 2 2026-05-20
AFL1486 - 2 2026-07-17
AFL1447 - 2 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 AFL1454 SVO → UUD Jul 24, 22:35 UTCJul 25, 04:10 UTC5h 35m
2026-07-23 AFL1477 UUD → SVO Jul 23, 01:20 UTCJul 23, 01:50 UTC30m
2026-07-21 AFL1454 - Jul 21, 22:15 UTCJul 21, 22:45 UTC30m
2026-07-21 AFL1843 - Jul 21, 12:40 UTCJul 21, 12:50 UTC10m
2026-07-20 AFL1455 UUD → SVO Jul 20, 22:10 UTCJul 21, 06:15 UTC8h 4m
2026-07-20 AFL1454 - Jul 20, 18:40 UTCJul 20, 19:00 UTC20m
2026-07-19 AFL1750 SVO → YKS Jul 19, 23:10 UTCJul 20, 10:05 UTC10h 55m
2026-07-19 AFL1562 SVO → IKT Jul 19, 02:20 UTCJul 19, 10:20 UTC8h 0m
2026-07-18 AFL1186 SVO → SVO Jul 18, 14:45 UTCJul 18, 15:30 UTC45m
2026-07-17 AFL1442 SVO → IKT Jul 17, 23:05 UTCJul 17, 23:35 UTC30m
2026-07-17 AFL1442 SVO → IKT Jul 17, 19:25 UTCJul 17, 19:49 UTC25m
2026-07-17 AFL1487 - Jul 17, 08:20 UTCJul 17, 16:10 UTC7h 50m
2026-07-17 AFL1486 SVO → SVO Jul 17, 07:05 UTCJul 17, 07:30 UTC25m
2026-07-16 AFL1440 - Jul 16, 18:10 UTCJul 16, 18:40 UTC30m
2026-07-15 AFL2933 - Jul 15, 01:45 UTCJul 15, 09:55 UTC8h 10m
2026-07-14 AFL2933 - Jul 14, 09:20 UTCJul 15, 09:15 UTC23h 54m
2026-07-14 AFL2933 - Jul 14, 09:05 UTCJul 15, 06:50 UTC21h 44m
2026-07-14 AFL2933 - Jul 14, 06:20 UTCJul 15, 02:10 UTC19h 49m
2026-07-14 AFL2933 - Jul 14, 01:20 UTCJul 14, 09:55 UTC8h 35m
2026-07-12 AFL2933 - Jul 12, 07:25 UTCJul 13, 01:55 UTC18h 30m
2026-07-12 AFL2933 - Jul 12, 02:25 UTCJul 12, 11:05 UTC8h 40m
2026-07-11 AFL2933 - Jul 11, 01:20 UTCJul 11, 09:50 UTC8h 30m
2026-07-10 AFL2936 - Jul 10, 12:30 UTCJul 10, 12:45 UTC15m
2026-07-10 AFL2933 - Jul 10, 01:25 UTCJul 10, 10:05 UTC8h 40m
2026-07-09 AFL2933 - Jul 9, 09:20 UTCJul 10, 09:15 UTC23h 55m
2026-07-09 AFL2933 - Jul 9, 09:05 UTCJul 10, 06:45 UTC21h 40m
2026-07-09 AFL2933 - Jul 9, 06:15 UTCJul 10, 01:55 UTC19h 40m
2026-07-09 AFL2933 - Jul 9, 01:20 UTCJul 9, 10:05 UTC8h 45m
2026-07-07 AFL1539 - Jul 7, 11:45 UTCJul 7, 14:40 UTC2h 55m
2026-07-07 AFL1538 - Jul 7, 09:40 UTCJul 7, 09:50 UTC10m
2026-07-05 AFL1454 - Jul 5, 21:50 UTCJul 6, 03:50 UTC6h 0m
2026-07-05 AFL1208 SVO → SVO Jul 5, 07:30 UTCJul 5, 08:05 UTC35m
2026-07-04 AFL1136 - Jul 4, 10:10 UTCJul 4, 10:45 UTC35m
2026-07-04 AFL1473 - Jul 4, 06:00 UTCJul 4, 06:25 UTC25m
2026-07-02 AFL1442 - Jul 2, 22:55 UTCJul 3, 06:50 UTC7h 55m
2026-07-02 AFL1058 SVO → SVO Jul 2, 08:30 UTCJul 2, 09:00 UTC30m
2026-06-30 AFL1444 - Jun 30, 21:35 UTCJul 1, 16:25 UTC18h 50m
2026-06-30 AFL1447 - Jun 30, 13:20 UTCJul 1, 08:45 UTC19h 25m
2026-06-30 AFL1447 - Jun 30, 12:55 UTCJul 1, 08:45 UTC19h 50m
2026-06-30 AFL1446 - Jun 30, 09:20 UTCJun 30, 09:35 UTC15m
2026-06-29 AFL1454 - Jun 29, 22:15 UTCJun 30, 04:00 UTC5h 46m
2026-06-28 AFL1835 - Jun 28, 03:45 UTCJun 28, 03:59 UTC15m
2026-06-27 AFL1264 SVO → SVO Jun 27, 11:20 UTCJun 27, 11:50 UTC30m
2026-06-23 AFL1440 - Jun 23, 03:25 UTCJun 23, 23:14 UTC19h 50m
2026-06-22 AFL1442 - Jun 22, 22:24 UTCJun 23, 18:29 UTC20h 5m
2026-06-20 AFL1562 - Jun 20, 18:19 UTCJun 21, 03:05 UTC8h 45m
2026-06-19 AFL1443 - Jun 19, 01:50 UTCJun 19, 02:14 UTC25m
2026-06-18 AFL1443 - Jun 18, 03:30 UTCJun 18, 06:40 UTC3h 10m
2026-06-16 AFL1443 - Jun 16, 03:30 UTCJun 16, 17:24 UTC13h 55m
2026-06-14 AFL1056 SVO → MCX Jun 14, 15:30 UTCJun 14, 15:50 UTC20m

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-73101 page for operator, model, and routing details .

Mode-S 151D8D frequently asked

What is Mode-S code 151D8D?
151D8D is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73101.
Where is Mode-S 151D8D registered?
Mode-S code 151D8D is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151D8D broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 04:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151D8D, octal 05216615, decimal 1,383,821.
What flights does 151D8D operate?
Mode-S 151D8D has broadcast 20 distinct callsigns, including AFL1454, AFL2933, AFL1455, AFL1751, AFL1442.