Apparatus

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sensors Mode-S transponder

151DD9

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73177 · AIRBUS A-321

Hex
151DD9
Octal
05216731
Decimal
1,383,897
Country
RU
Tail
RA-73177
Type
A321
No current signal · last broadcast 2d ago
Flights observed
152
Distinct callsigns
20
Country
RU
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 151DD9.

Country allocation

The ICAO 24-bit address 151DD9 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
AFL1019 - 7 2026-06-27
AFL1459 - 6 2026-07-12
AFL1451 - 6 2026-07-05
AFL1450 - 6 2026-07-04
AFL1458 - 5 2026-07-05
AFL1016 - 5 2026-07-09
AFL1003 - 4 2026-07-06
AFL1002 - 4 2026-07-06
AFL1530 Aeroflot Russian Airlines 3 2026-06-06
AFL1457 Aeroflot Russian Airlines 3 2026-05-31
AFL1456 Aeroflot Russian Airlines 3 2026-05-30
AFL1422 Aeroflot Russian Airlines 3 2026-04-25
AFL1324 Aeroflot Russian Airlines 3 2026-06-08
AFL1208 Aeroflot Russian Airlines 3 2026-05-28
AFL1148 Aeroflot Russian Airlines 3 2026-06-14
AFL1032 - 3 2026-07-11
AFL1018 - 3 2026-06-27
AFL1887 Aeroflot Russian Airlines 2 2026-04-16
AFL1582 Aeroflot Russian Airlines 2 2026-06-15
AFL1531 Aeroflot Russian Airlines 2 2026-06-07

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 AFL1459 - Jul 12, 01:55 UTCJul 12, 02:20 UTC25m
2026-07-11 AFL1013 - Jul 11, 16:25 UTCJul 11, 17:45 UTC1h 20m
2026-07-11 AFL1012 - Jul 11, 14:10 UTCJul 11, 14:30 UTC20m
2026-07-11 AFL1032 - Jul 11, 05:55 UTCJul 11, 06:35 UTC40m
2026-07-09 AFL1011 - Jul 9, 18:15 UTCJul 10, 03:45 UTC9h 30m
2026-07-09 AFL1017 - Jul 9, 10:35 UTCJul 9, 16:25 UTC5h 50m
2026-07-09 AFL1016 - Jul 9, 07:15 UTCJul 9, 08:00 UTC45m
2026-07-09 AFL1016 SVO → SVO Jul 9, 06:10 UTCJul 9, 06:20 UTC10m
2026-07-08 AFL1033 - Jul 8, 13:15 UTCJul 8, 14:30 UTC1h 15m
2026-07-08 AFL1032 - Jul 8, 06:05 UTCJul 8, 06:40 UTC35m
2026-07-06 AFL1260 - Jul 6, 18:10 UTCJul 6, 18:50 UTC40m
2026-07-06 AFL1003 - Jul 6, 14:00 UTCJul 6, 15:00 UTC1h 0m
2026-07-06 AFL1002 - Jul 6, 01:35 UTCJul 6, 11:25 UTC9h 50m
2026-07-05 AFL1458 - Jul 5, 20:10 UTCJul 5, 23:50 UTC3h 40m
2026-07-05 AFL1451 - Jul 5, 01:30 UTCJul 5, 23:50 UTC22h 20m
2026-07-04 AFL1450 SVO → KEJ Jul 4, 20:20 UTCJul 5, 00:05 UTC3h 45m
2026-07-03 AFL1459 - Jul 3, 01:20 UTCJul 3, 01:55 UTC35m
2026-07-02 AFL1458 - Jul 2, 20:10 UTCJul 2, 23:55 UTC3h 45m
2026-07-02 AFL1028 SVO → SVO Jul 2, 09:40 UTCJul 2, 10:10 UTC30m
2026-07-02 AFL1451 - Jul 2, 01:20 UTCJul 2, 01:45 UTC25m
2026-07-01 AFL1450 - Jul 1, 23:25 UTCJul 2, 00:00 UTC35m
2026-07-01 AFL1450 SVO → SVO Jul 1, 20:05 UTCJul 1, 20:20 UTC15m
2026-07-01 AFL1013 - Jul 1, 16:10 UTCJul 1, 17:20 UTC1h 10m
2026-07-01 AFL1012 - Jul 1, 13:20 UTCJul 1, 14:45 UTC1h 25m
2026-07-01 AFL1033 - Jul 1, 08:50 UTCJul 1, 10:15 UTC1h 25m
2026-07-01 AFL1032 - Jul 1, 05:50 UTCJul 1, 06:40 UTC50m
2026-06-30 AFL1027 - Jun 30, 08:20 UTCJun 30, 09:45 UTC1h 25m
2026-06-29 AFL1014 - Jun 29, 06:44 UTCJun 29, 07:30 UTC45m
2026-06-27 AFL027 - Jun 27, 19:34 UTCJun 27, 19:55 UTC20m
2026-06-27 AFL1019 - Jun 27, 13:24 UTCJun 27, 14:14 UTC50m
2026-06-27 AFL1018 - Jun 27, 09:09 UTCJun 27, 11:25 UTC2h 15m
2026-06-27 AFL1485 - Jun 27, 03:34 UTCJun 27, 06:44 UTC3h 10m
2026-06-24 AFL1016 - Jun 24, 07:15 UTCJun 24, 08:04 UTC50m
2026-06-23 AFL1485 - Jun 23, 03:15 UTCJun 23, 06:19 UTC3h 5m
2026-06-23 AFL1484 - Jun 23, 00:45 UTCJun 23, 01:15 UTC30m
2026-06-21 AFL025 - Jun 21, 17:05 UTCJun 21, 17:50 UTC45m
2026-06-20 AFL1005 KGD → SVO Jun 20, 01:39 UTCJun 20, 15:49 UTC14h 10m
2026-06-18 AFL1513 - Jun 18, 00:20 UTCJun 18, 20:00 UTC19h 40m
2026-06-17 AFL1512 SVO → SVO Jun 17, 23:00 UTCJun 17, 23:30 UTC30m
2026-06-16 AFL1019 KGD → SVO Jun 16, 14:20 UTCJun 17, 10:05 UTC19h 46m
2026-06-16 AFL1019 KGD → SVO Jun 16, 13:30 UTCJun 17, 10:05 UTC20h 36m
2026-06-15 AFL1018 - Jun 15, 23:04 UTCJun 16, 11:40 UTC12h 35m
2026-06-15 AFL1582 SVO → RGK Jun 15, 02:50 UTCJun 15, 03:00 UTC10m
2026-06-14 AFL1148 SVO → GDZ Jun 14, 05:35 UTCJun 14, 05:55 UTC20m
2026-06-13 AFL1025 KGD → SVO Jun 13, 15:30 UTCJun 14, 02:50 UTC11h 20m
2026-06-13 AFL1024 SVO → KGD Jun 13, 11:45 UTCJun 13, 13:45 UTC2h 0m
2026-06-12 AFL1582 SVO → RGK Jun 12, 23:30 UTCJun 13, 03:20 UTC3h 50m
2026-06-12 AFL1148 SVO → GDZ Jun 12, 06:00 UTCJun 12, 06:30 UTC30m
2026-06-12 AFL1395 PEE → SVO Jun 12, 02:55 UTCJun 12, 03:15 UTC20m
2026-06-11 AFL1082 SVO → GDZ Jun 11, 10:50 UTCJun 11, 11:15 UTC25m

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-73177 page for operator, model, and routing details .

Mode-S 151DD9 frequently asked

What is Mode-S code 151DD9?
151DD9 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73177.
Where is Mode-S 151DD9 registered?
Mode-S code 151DD9 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DD9 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DD9, octal 05216731, decimal 1,383,897.
What flights does 151DD9 operate?
Mode-S 151DD9 has broadcast 20 distinct callsigns, including AFL1019, AFL1459, AFL1451, AFL1450, AFL1458.