Apparatus

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sensors Mode-S transponder

151DD2

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73170 · AIRBUS A-320

Hex
151DD2
Octal
05216722
Decimal
1,383,890
Country
RU
Tail
RA-73170
Type
A320
No current signal · last broadcast 21h ago
Flights observed
146
Distinct callsigns
20
Country
RU
Last broadcast
21h ago

Last known position

Most recent position reported by Mode-S 151DD2.

Country allocation

The ICAO 24-bit address 151DD2 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
AFL795 - 6 2026-07-07
AFL793 - 6 2026-07-06
AFL1985 Aeroflot Russian Airlines 5 2026-05-16
AFL641 - 4 2026-07-12
AFL601 - 4 2026-06-19
AFL1323 Aeroflot Russian Airlines 4 2026-05-19
AFL794 - 3 2026-06-26
AFL657 - 3 2026-07-02
AFL640 Aeroflot Russian Airlines 3 2026-06-20
AFL1937 Aeroflot Russian Airlines 3 2026-05-25
AFL1843 Aeroflot Russian Airlines 3 2026-05-22
AFL1481 Aeroflot Russian Airlines 3 2026-05-09
AFL792 Aeroflot Russian Airlines 2 2026-05-24
AFL2172 - 2 2026-07-02
AFL1984 Aeroflot Russian Airlines 2 2026-04-21
AFL1936 Aeroflot Russian Airlines 2 2026-06-06
AFL1869 - 2 2026-06-30
AFL1473 Aeroflot Russian Airlines 2 2026-06-15
AFL1451 Aeroflot Russian Airlines 2 2026-04-28
AFL1438 - 2 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFL1188 SVO → SVO Jul 14, 07:35 UTCJul 14, 07:55 UTC20m
2026-07-12 AFL641 - Jul 12, 15:25 UTCJul 12, 15:50 UTC25m
2026-07-11 AFL2954 - Jul 11, 10:25 UTCJul 11, 10:40 UTC15m
2026-07-11 AFL603 - Jul 11, 05:25 UTCJul 11, 05:55 UTC30m
2026-07-11 AFL602 - Jul 11, 00:10 UTCJul 11, 00:30 UTC20m
2026-07-09 AFL1180 SVO → SVO Jul 9, 04:40 UTCJul 9, 05:15 UTC35m
2026-07-08 AFL2867 KZN → KRR Jul 8, 12:25 UTCJul 8, 12:50 UTC25m
2026-07-07 AFL795 - Jul 7, 07:45 UTCJul 7, 10:55 UTC3h 10m
2026-07-06 AFL793 - Jul 6, 19:05 UTCJul 7, 06:10 UTC11h 5m
2026-07-05 AFL1327 - Jul 5, 19:35 UTCJul 5, 20:20 UTC45m
2026-07-04 AFL1470 SVO → SVO Jul 4, 20:45 UTCJul 4, 21:10 UTC25m
2026-07-04 AFL1400 SVO → SVO Jul 4, 05:45 UTCJul 4, 05:55 UTC10m
2026-07-03 AFL019 LED → SVO Jul 3, 11:55 UTCJul 3, 12:50 UTC55m
2026-07-02 AFL657 - Jul 2, 11:45 UTCJul 2, 12:10 UTC25m
2026-07-02 AFL2172 - Jul 2, 08:35 UTCJul 2, 08:55 UTC20m
2026-06-30 AFL1869 - Jun 30, 20:30 UTCJun 30, 20:55 UTC25m
2026-06-29 AFL795 - Jun 29, 03:20 UTCJun 29, 05:04 UTC1h 45m
2026-06-28 AFL793 - Jun 28, 15:05 UTCJun 29, 01:55 UTC10h 50m
2026-06-28 AFL795 - Jun 28, 03:05 UTCJun 28, 04:59 UTC1h 55m
2026-06-27 AFL793 - Jun 27, 14:20 UTCJun 28, 01:40 UTC11h 20m
2026-06-27 AFL795 - Jun 27, 02:59 UTCJun 27, 12:55 UTC9h 55m
2026-06-26 AFL793 - Jun 26, 14:29 UTCJun 27, 01:35 UTC11h 5m
2026-06-26 AFL794 - Jun 26, 08:50 UTCJun 26, 13:04 UTC4h 15m
2026-06-24 AFL1050 SVO → MCX Jun 24, 14:04 UTCJun 24, 14:50 UTC45m
2026-06-22 AFL1890 SVO → TAS Jun 22, 19:29 UTCJun 22, 19:49 UTC20m
2026-06-22 AFL1951 CIT → SVO Jun 22, 15:35 UTCJun 22, 15:45 UTC10m
2026-06-20 AFL641 IST → AER Jun 20, 16:14 UTCJun 20, 16:44 UTC30m
2026-06-20 AFL640 AER → IST Jun 20, 12:54 UTCJun 20, 13:24 UTC30m
2026-06-19 AFL641 IST → AER Jun 19, 14:59 UTCJun 19, 15:29 UTC30m
2026-06-19 AFL640 AER → IST Jun 19, 13:09 UTCJun 19, 13:29 UTC20m
2026-06-19 AFL601 - Jun 19, 08:24 UTCJun 19, 08:50 UTC25m
2026-06-19 AFL600 - Jun 19, 06:35 UTCJun 19, 06:49 UTC15m
2026-06-17 AFL1306 SVO → OVB Jun 17, 22:25 UTCJun 17, 22:50 UTC25m
2026-06-17 AFL1263 - Jun 17, 19:30 UTCJun 17, 19:55 UTC25m
2026-06-15 AFL1572 SVO → ESL Jun 15, 08:54 UTCJun 15, 10:05 UTC1h 10m
2026-06-15 AFL1473 NJC → SVO Jun 15, 05:10 UTCJun 15, 05:30 UTC20m
2026-06-13 AFL641 IST → AER Jun 13, 16:50 UTCJun 13, 17:20 UTC30m
2026-06-12 AFL601 EVN → AER Jun 12, 14:35 UTCJun 13, 12:00 UTC21h 24m
2026-06-12 AFL601 EVN → AER Jun 12, 14:25 UTCJun 13, 12:00 UTC21h 34m
2026-06-12 AFL640 AER → IST Jun 12, 12:35 UTCJun 12, 12:45 UTC10m
2026-06-12 AFL601 EVN → AER Jun 12, 08:45 UTCJun 12, 09:30 UTC45m
2026-06-12 AFL2835 AER → LED Jun 12, 00:30 UTCJun 12, 01:20 UTC50m
2026-06-11 AFL1603 KUF → SVO Jun 11, 09:40 UTCJun 11, 09:55 UTC15m
2026-06-10 AFL1891 TAS → SVO Jun 10, 20:40 UTCJun 11, 07:20 UTC10h 40m
2026-06-10 AFL657 IST → KRR Jun 10, 11:20 UTCJun 11, 07:20 UTC20h 0m
2026-06-08 AFL657 IST → KRR Jun 8, 11:00 UTCJun 8, 11:30 UTC30m
2026-06-08 AFL2172 SVO → IST Jun 8, 04:35 UTCJun 8, 05:15 UTC40m
2026-06-07 AFL1850 SVO → GYD Jun 7, 18:50 UTCJun 7, 19:25 UTC35m
2026-06-06 AFL1963 NQZ → SVO Jun 6, 23:30 UTCJun 7, 15:40 UTC16h 10m
2026-06-06 AFL1936 SVO → KGF Jun 6, 15:34 UTCJun 6, 23:44 UTC8h 10m

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-73170 page for operator, model, and routing details .

Mode-S 151DD2 frequently asked

What is Mode-S code 151DD2?
151DD2 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73170.
Where is Mode-S 151DD2 registered?
Mode-S code 151DD2 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DD2 broadcasting right now?
No active broadcast right now. Last signal was 21h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DD2, octal 05216722, decimal 1,383,890.
What flights does 151DD2 operate?
Mode-S 151DD2 has broadcast 20 distinct callsigns, including AFL795, AFL793, AFL1985, AFL641, AFL601.