Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151DD3

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73171 · AIRBUS A-320

Hex
151DD3
Octal
05216723
Decimal
1,383,891
Country
RU
Tail
RA-73171
Type
A320
No current signal · last broadcast Jul 26, 16:45 UTC
Flights observed
186
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 16:45 UTC

Last known position

Most recent position reported by Mode-S 151DD3.

Country allocation

The ICAO 24-bit address 151DD3 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
AFL2172 - 5 2026-07-06
AFL787 Aeroflot Russian Airlines 4 2026-06-13
AFL786 Aeroflot Russian Airlines 4 2026-06-13
AFL631 Aeroflot Russian Airlines 4 2026-06-03
AFL601 Aeroflot Russian Airlines 4 2026-05-23
AFL1186 Aeroflot Russian Airlines 4 2026-05-30
AFL657 - 3 2026-07-06
AFL641 Aeroflot Russian Airlines 3 2026-05-23
AFL600 Aeroflot Russian Airlines 3 2026-05-14
AFL2842 Aeroflot Russian Airlines 3 2026-06-02
AFL2173 - 3 2026-06-24
AFL1478 - 3 2026-07-01
AFL1458 - 3 2026-06-28
AFL1266 - 3 2026-07-04
AFL1244 - 3 2026-07-15
AFL1174 Aeroflot Russian Airlines 3 2026-07-11
AFL007 - 3 2026-06-14
AFL006 - 3 2026-06-11
AFL772 Aeroflot Russian Airlines 2 2026-05-03
AFL685 Aeroflot Russian Airlines 2 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1418 SVO → SVX Jul 26, 16:25 UTCJul 26, 16:45 UTC20m
2026-07-25 AFL1474 SVO → ABA Jul 25, 23:20 UTCJul 26, 02:50 UTC3h 30m
2026-07-25 AFL1021 SVX → SVO Jul 25, 16:25 UTCJul 25, 17:10 UTC45m
2026-07-24 AFL1259 UFA → SVO Jul 24, 17:25 UTCJul 25, 16:45 UTC23h 20m
2026-07-23 AFL1242 SVO → REN Jul 23, 03:35 UTCJul 23, 04:00 UTC25m
2026-07-22 AFL1327 MMK → SVO Jul 22, 19:20 UTCJul 22, 19:55 UTC35m
2026-07-20 AFL1231 - Jul 20, 08:10 UTCJul 20, 10:45 UTC2h 35m
2026-07-18 AFL1260 SVO → SVO Jul 18, 18:10 UTCJul 18, 18:20 UTC10m
2026-07-18 AFL1242 SVO → REN Jul 18, 03:45 UTCJul 18, 04:00 UTC15m
2026-07-17 AFL1183 - Jul 17, 16:49 UTCJul 17, 17:25 UTC35m
2026-07-16 AFL1481 - Jul 16, 08:00 UTCJul 17, 02:45 UTC18h 45m
2026-07-15 AFL1244 SVO → SVO Jul 15, 21:55 UTCJul 15, 22:10 UTC15m
2026-07-15 AFL1833 - Jul 15, 18:50 UTCJul 15, 19:10 UTC20m
2026-07-15 AFL1832 - Jul 15, 16:40 UTCJul 15, 17:30 UTC50m
2026-07-15 AFL1058 SVO → SVO Jul 15, 08:10 UTCJul 15, 08:50 UTC40m
2026-07-15 AFL1941 SVO → SVO Jul 15, 06:15 UTCJul 15, 06:25 UTC10m
2026-07-14 AFL1346 - Jul 14, 12:40 UTCJul 14, 13:15 UTC35m
2026-07-11 AFL1174 SVO → ASF Jul 11, 13:35 UTCJul 11, 14:40 UTC1h 5m
2026-07-09 AFL1854 SVO → SVO Jul 9, 08:00 UTCJul 9, 08:35 UTC35m
2026-07-08 AFL1334 SVO → SVO Jul 8, 18:20 UTCJul 8, 18:30 UTC10m
2026-07-06 AFL657 - Jul 6, 11:00 UTCJul 6, 11:25 UTC25m
2026-07-06 AFL2172 - Jul 6, 09:15 UTCJul 6, 09:25 UTC10m
2026-07-06 AFL2172 SVO → SVO Jul 6, 04:40 UTCJul 6, 05:10 UTC30m
2026-07-04 AFL1266 SVO → SVO Jul 4, 04:00 UTCJul 4, 04:30 UTC30m
2026-07-03 AFL1845 - Jul 3, 20:45 UTCJul 3, 20:55 UTC10m
2026-07-02 AFL1005 - Jul 2, 15:10 UTCJul 2, 15:55 UTC45m
2026-07-02 AFL1004 - Jul 2, 12:10 UTCJul 2, 13:00 UTC50m
2026-07-02 AFL1180 SVO → SVO Jul 2, 04:50 UTCJul 2, 05:25 UTC35m
2026-07-01 AFL1845 - Jul 1, 20:05 UTCJul 1, 20:20 UTC15m
2026-07-01 AFL1479 - Jul 1, 03:40 UTCJul 1, 04:25 UTC45m
2026-07-01 AFL1478 - Jul 1, 01:10 UTCJul 1, 01:50 UTC40m
2026-06-29 AFL1459 - Jun 29, 01:25 UTCJun 29, 01:55 UTC30m
2026-06-28 AFL1458 - Jun 28, 23:29 UTCJun 29, 00:00 UTC30m
2026-06-28 AFL1359 GSV → GSV Jun 28, 15:44 UTCJun 28, 16:00 UTC15m
2026-06-27 AFL657 - Jun 27, 10:45 UTCJun 27, 11:20 UTC35m
2026-06-27 AFL2172 - Jun 27, 08:35 UTCJun 27, 09:00 UTC25m
2026-06-26 AFL1459 - Jun 26, 00:59 UTCJun 26, 01:29 UTC30m
2026-06-25 AFL1458 - Jun 25, 23:05 UTCJun 25, 23:39 UTC35m
2026-06-25 AFL1458 - Jun 25, 19:49 UTCJun 25, 20:09 UTC20m
2026-06-25 AFL1531 - Jun 25, 06:09 UTCJun 25, 07:09 UTC1h 0m
2026-06-25 AFL1530 SVO → TOF Jun 25, 01:14 UTCJun 25, 01:24 UTC10m
2026-06-24 AFL2173 - Jun 24, 12:20 UTCJun 24, 12:50 UTC30m
2026-06-24 AFL656 - Jun 24, 10:10 UTCJun 24, 10:39 UTC30m
2026-06-23 AFL1833 - Jun 23, 18:20 UTCJun 23, 18:29 UTC10m
2026-06-21 AFL657 - Jun 21, 10:54 UTCJun 21, 11:24 UTC30m
2026-06-21 AFL2172 - Jun 21, 08:44 UTCJun 21, 09:00 UTC15m
2026-06-20 AFL2172 - Jun 20, 16:59 UTCJun 21, 08:04 UTC15h 5m
2026-06-20 AFL1213 KUF → SVO Jun 20, 13:55 UTCJun 20, 14:05 UTC10m
2026-06-20 AFL1212 SVO → KUF Jun 20, 10:59 UTCJun 20, 11:44 UTC45m
2026-06-19 AFL1259 UFA → SVO Jun 19, 17:29 UTCJun 19, 17:59 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-73171 page for operator, model, and routing details .

Mode-S 151DD3 frequently asked

What is Mode-S code 151DD3?
151DD3 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73171.
Where is Mode-S 151DD3 registered?
Mode-S code 151DD3 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151DD3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151DD3, octal 05216723, decimal 1,383,891.
What flights does 151DD3 operate?
Mode-S 151DD3 has broadcast 20 distinct callsigns, including AFL2172, AFL787, AFL786, AFL631, AFL601.