Apparatus

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sensors Mode-S transponder

151DD1

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73169 · AIRBUS A-320

Hex
151DD1
Octal
05216721
Decimal
1,383,889
Country
RU
Tail
RA-73169
Type
A320
No current signal · last broadcast 11h ago
Flights observed
90
Distinct callsigns
20
Country
RU
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 151DD1.

Country allocation

The ICAO 24-bit address 151DD1 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
AFL1259 Aeroflot Russian Airlines 3 2026-05-24
AFL656 Aeroflot Russian Airlines 2 2026-05-17
AFL2173 Aeroflot Russian Airlines 2 2026-05-17
AFL1587 Aeroflot Russian Airlines 2 2026-05-20
AFL1498 Aeroflot Russian Airlines 2 2026-04-23
AFL1496 Aeroflot Russian Airlines 2 2026-05-18
AFL1479 Aeroflot Russian Airlines 2 2026-05-19
AFL1451 Aeroflot Russian Airlines 2 2026-04-30
AFL1431 Aeroflot Russian Airlines 2 2026-05-22
AFL1219 Aeroflot Russian Airlines 2 2026-04-16
AFL1218 Aeroflot Russian Airlines 2 2026-05-15
AFL1213 Aeroflot Russian Airlines 2 2026-05-01
AFL1199 Aeroflot Russian Airlines 2 2026-05-27
AFL1060 Aeroflot Russian Airlines 2 2026-04-26
AFL801 Aeroflot Russian Airlines 1 2026-04-28
AFL800 Aeroflot Russian Airlines 1 2026-04-28
AFL799 Aeroflot Russian Airlines 1 2026-04-28
AFL798 Aeroflot Russian Airlines 1 2026-04-28
AFL2961 Aeroflot Russian Airlines 1 2026-05-10
AFL2941 Aeroflot Russian Airlines 1 2026-05-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 AFL1050 SVO → MCX May 29, 14:05 UTCMay 29, 14:35 UTC30m
2026-05-29 AFL1504 SVO → TJM May 29, 06:00 UTCMay 29, 06:25 UTC25m
2026-05-29 AFL1263 UFA → SVO May 29, 02:45 UTCMay 29, 03:10 UTC25m
2026-05-28 AFL1262 SVO → UFA May 28, 07:25 UTCMay 28, 08:50 UTC1h 25m
2026-05-27 AFL1829 KVD → SVO May 27, 13:55 UTCMay 27, 17:15 UTC3h 20m
2026-05-27 AFL1199 KZN → SVO May 27, 05:04 UTCMay 27, 05:35 UTC30m
2026-05-26 AFL1642 SVO → ASF May 26, 10:39 UTCMay 26, 11:15 UTC35m
2026-05-25 AFL1140 SVO → AER May 25, 15:30 UTCMay 25, 16:25 UTC55m
2026-05-25 AFL1132 SVO → AER May 25, 05:45 UTCMay 25, 06:25 UTC40m
2026-05-25 AFL1429 MQF → SVO May 25, 02:00 UTCMay 25, 02:45 UTC45m
2026-05-24 AFL1259 UFA → SVO May 24, 17:30 UTCMay 24, 17:50 UTC20m
2026-05-23 AFL1769 PEE → SVO May 23, 17:25 UTCMay 23, 17:45 UTC20m
2026-05-22 AFL1431 BAX → SVO May 22, 02:20 UTCMay 22, 08:55 UTC6h 35m
2026-05-21 AFL1431 BAX → SVO May 21, 11:05 UTCMay 22, 08:55 UTC21h 50m
2026-05-21 AFL2172 SVO → IST May 21, 08:50 UTCMay 21, 09:05 UTC15m
2026-05-21 AFL1511 SGC → SVO May 21, 01:15 UTCMay 21, 01:45 UTC30m
2026-05-20 AFL1510 SVO → SGC May 20, 19:00 UTCMay 20, 19:25 UTC25m
2026-05-20 AFL1587 CSY → SVO May 20, 16:45 UTCMay 20, 17:15 UTC30m
2026-05-20 AFL2941 KGD → CSY May 20, 12:10 UTCMay 20, 13:25 UTC1h 15m
2026-05-20 AFL2940 CSY → KGD May 20, 01:25 UTCMay 20, 10:20 UTC8h 56m
2026-05-19 AFL1479 ABA → SVO May 19, 05:50 UTCMay 19, 23:55 UTC18h 5m
2026-05-19 AFL1479 ABA → SVO May 19, 03:15 UTCMay 19, 23:55 UTC20h 40m
2026-05-18 AFL1478 SVO → ABA May 18, 22:55 UTCMay 19, 01:30 UTC2h 35m
2026-05-18 AFL1496 SVO → GRV May 18, 13:10 UTCMay 18, 13:45 UTC35m
2026-05-17 AFL2173 IST → SVO May 17, 20:25 UTCMay 17, 20:40 UTC15m
2026-05-17 AFL656 KRR → IST May 17, 16:30 UTCMay 17, 16:40 UTC10m
2026-05-16 AFL1056 SVO → MCX May 16, 13:55 UTCMay 16, 14:16 UTC20m
2026-05-15 AFL1432 SVO → BAX May 15, 19:00 UTCMay 15, 19:15 UTC15m
2026-05-15 AFL1218 SVO → KUF May 15, 07:20 UTCMay 15, 07:55 UTC35m
2026-05-14 AFL1465 OVB → SVO May 14, 15:35 UTCMay 14, 15:45 UTC10m
2026-05-13 AFL1226 SVO → GOJ May 13, 12:40 UTCMay 13, 13:10 UTC30m
2026-05-13 AFL1679 ASF → SVO May 13, 08:25 UTCMay 13, 08:50 UTC25m
2026-05-12 AFL1227 GOJ → SVO May 12, 12:45 UTCMay 12, 20:20 UTC7h 35m
2026-05-12 AFL1783 UUS → SVO May 12, 10:30 UTCMay 12, 10:50 UTC20m
2026-05-11 AFL1793 UUS → SVO May 11, 15:40 UTCMay 11, 15:55 UTC15m
2026-05-11 AFL1792 SVO → UUS May 11, 10:20 UTCMay 11, 10:55 UTC35m
2026-05-11 AFL1473 NJC → SVO May 11, 06:55 UTCMay 11, 07:20 UTC25m
2026-05-10 AFL2961 SVX → AER May 10, 02:20 UTCMay 10, 20:20 UTC18h 0m
2026-05-06 AFL1005 KGD → SVO May 6, 14:45 UTCMay 6, 16:25 UTC1h 40m
2026-05-06 AFL1004 SVO → KGD May 6, 10:45 UTCMay 6, 13:10 UTC2h 25m
2026-05-06 AFL1180 SVO → VOG May 6, 04:35 UTCMay 6, 05:30 UTC55m
2026-05-05 AFL1111 AER → SVO May 5, 07:05 UTCMay 5, 13:00 UTC5h 55m
2026-05-03 AFL1141 AER → SVO May 3, 07:40 UTCMay 3, 07:55 UTC15m
2026-05-02 AFL1202 SVO → PEE May 2, 08:25 UTCMay 2, 08:55 UTC30m
2026-05-01 AFL1213 KUF → SVO May 1, 14:45 UTCMay 1, 15:00 UTC15m
2026-05-01 AFL1213 KUF → SVO May 1, 13:55 UTCMay 1, 14:05 UTC10m
2026-04-30 AFL1212 SVO → KUF Apr 30, 20:00 UTCMay 1, 11:50 UTC15h 50m
2026-04-30 AFL1572 SVO → ESL Apr 30, 08:35 UTCApr 30, 20:10 UTC11h 35m
2026-04-30 AFL1451 KEJ → SVO Apr 30, 05:40 UTCApr 30, 06:00 UTC20m
2026-04-30 AFL1451 KEJ → SVO Apr 30, 01:15 UTCApr 30, 01:45 UTC30m

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-73169 page for operator, model, and routing details .

Mode-S 151DD1 frequently asked

What is Mode-S code 151DD1?
151DD1 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73169.
Where is Mode-S 151DD1 registered?
Mode-S code 151DD1 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DD1 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DD1, octal 05216721, decimal 1,383,889.
What flights does 151DD1 operate?
Mode-S 151DD1 has broadcast 20 distinct callsigns, including AFL1259, AFL656, AFL2173, AFL1587, AFL1498.