Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

151FE7

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73703 · AIRBUS A-321

Hex
151FE7
Octal
05217747
Decimal
1,384,423
Country
RU
Tail
RA-73703
Type
A321
No current signal · last broadcast Jul 26, 21:35 UTC
Flights observed
223
Distinct callsigns
20
Country
RU
Last broadcast
Jul 26, 21:35 UTC

Last known position

Most recent position reported by Mode-S 151FE7.

Country allocation

The ICAO 24-bit address 151FE7 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
AFL421 - 36 2026-06-30
AFL420 - 18 2026-06-29
AFL430 - 17 2026-06-19
AFL431 Aeroflot Russian Airlines 15 2026-06-18
AFL1751 - 12 2026-07-16
AFL427 - 10 2026-07-24
AFL480 - 9 2026-07-23
AFL423 - 7 2026-07-20
AFL661 Aeroflot Russian Airlines 5 2026-05-06
AFL439 Aeroflot Russian Airlines 5 2026-07-25
AFL426 - 5 2026-07-23
AFL233 Aeroflot Russian Airlines 5 2026-04-20
AFL232 Aeroflot Russian Airlines 5 2026-04-23
AFL422 - 4 2026-07-20
AFL2160 Aeroflot Russian Airlines 4 2026-05-02
AFL1645 Aeroflot Russian Airlines 4 2026-05-06
AFL1644 Aeroflot Russian Airlines 4 2026-05-05
AFL1014 Aeroflot Russian Airlines 3 2026-06-21
AFL1003 Aeroflot Russian Airlines 3 2026-05-04
AFL481 - 2 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AFL1750 SVO → YKS Jul 26, 21:05 UTCJul 26, 21:35 UTC30m
2026-07-25 AFL439 SSH → SVO Jul 25, 06:45 UTCJul 25, 09:25 UTC2h 40m
2026-07-24 AFL427 - Jul 24, 15:00 UTCJul 25, 04:20 UTC13h 20m
2026-07-23 AFL426 - Jul 23, 23:30 UTCJul 24, 12:50 UTC13h 20m
2026-07-23 AFL480 - Jul 23, 19:15 UTCJul 23, 21:30 UTC2h 15m
2026-07-23 AFL429 SSH → SVO Jul 23, 05:25 UTCJul 23, 08:05 UTC2h 40m
2026-07-22 AFL427 - Jul 22, 10:20 UTCJul 23, 03:25 UTC17h 5m
2026-07-21 AFL427 - Jul 21, 21:15 UTCJul 22, 15:20 UTC18h 5m
2026-07-21 AFL480 - Jul 21, 17:20 UTCJul 21, 18:50 UTC1h 30m
2026-07-21 AFL480 - Jul 21, 13:30 UTCJul 21, 14:10 UTC40m
2026-07-20 AFL485 SSH → SVO Jul 20, 13:50 UTCJul 21, 08:35 UTC18h 45m
2026-07-20 AFL423 - Jul 20, 12:50 UTCJul 21, 08:35 UTC19h 44m
2026-07-20 AFL423 - Jul 20, 09:50 UTCJul 21, 08:35 UTC22h 44m
2026-07-20 AFL423 - Jul 20, 08:40 UTCJul 21, 07:45 UTC23h 4m
2026-07-20 AFL422 SVO → SVO Jul 20, 04:50 UTCJul 20, 04:55 UTC5m
2026-07-19 AFL427 - Jul 19, 12:35 UTCJul 19, 13:55 UTC1h 20m
2026-07-18 AFL481 - Jul 18, 21:05 UTCJul 19, 10:15 UTC13h 10m
2026-07-18 AFL480 - Jul 18, 17:05 UTCJul 18, 18:40 UTC1h 35m
2026-07-18 AFL480 SVO → SVO Jul 18, 13:20 UTCJul 18, 13:35 UTC15m
2026-07-16 AFL1751 - Jul 16, 22:30 UTCJul 17, 09:45 UTC11h 15m
2026-07-16 AFL1751 - Jul 16, 09:50 UTCJul 17, 09:45 UTC23h 55m
2026-07-16 AFL1751 - Jul 16, 09:15 UTCJul 16, 23:25 UTC14h 10m
2026-07-15 AFL1751 - Jul 15, 15:50 UTCJul 16, 10:04 UTC18h 15m
2026-07-15 AFL423 - Jul 15, 14:00 UTCJul 16, 10:04 UTC20h 5m
2026-07-15 AFL423 - Jul 15, 09:55 UTCJul 16, 09:45 UTC23h 50m
2026-07-15 AFL422 SVO → SVO Jul 15, 05:35 UTCJul 15, 06:05 UTC30m
2026-07-14 AFL481 - Jul 14, 22:10 UTCJul 15, 00:50 UTC2h 39m
2026-07-14 AFL480 - Jul 14, 06:25 UTCJul 14, 19:25 UTC13h 0m
2026-07-13 AFL427 - Jul 13, 12:25 UTCJul 14, 04:10 UTC15h 45m
2026-07-12 AFL426 - Jul 12, 15:50 UTCJul 13, 10:10 UTC18h 20m
2026-07-12 AFL427 - Jul 12, 13:50 UTCJul 13, 10:10 UTC20h 20m
2026-07-12 AFL427 - Jul 12, 13:30 UTCJul 13, 10:10 UTC20h 40m
2026-07-11 AFL426 - Jul 11, 21:50 UTCJul 12, 11:10 UTC13h 20m
2026-07-11 AFL480 - Jul 11, 16:35 UTCJul 11, 19:20 UTC2h 45m
2026-07-11 AFL480 SVO → SVO Jul 11, 13:35 UTCJul 11, 14:10 UTC35m
2026-07-11 AFL439 SVO → SVO Jul 11, 11:15 UTCJul 11, 11:25 UTC10m
2026-07-11 AFL439 - Jul 11, 07:45 UTCJul 11, 09:10 UTC1h 25m
2026-07-11 AFL439 - Jul 11, 06:25 UTCJul 11, 07:40 UTC1h 15m
2026-07-10 AFL427 - Jul 10, 12:40 UTCJul 11, 04:20 UTC15h 40m
2026-07-09 AFL426 - Jul 9, 21:35 UTCJul 10, 10:25 UTC12h 50m
2026-07-09 AFL429 - Jul 9, 05:20 UTCJul 9, 18:30 UTC13h 10m
2026-07-09 AFL428 - Jul 9, 01:30 UTCJul 9, 03:05 UTC1h 35m
2026-07-08 AFL428 SVO → SVO Jul 8, 21:30 UTCJul 8, 22:10 UTC40m
2026-07-08 AFL427 - Jul 8, 08:30 UTCJul 8, 14:55 UTC6h 25m
2026-07-07 AFL423 - Jul 7, 14:05 UTCJul 8, 13:45 UTC23h 40m
2026-07-07 AFL423 - Jul 7, 10:10 UTCJul 8, 09:45 UTC23h 35m
2026-07-05 AFL1751 - Jul 5, 20:40 UTCJul 6, 08:30 UTC11h 50m
2026-07-05 AFL463 - Jul 5, 07:10 UTCJul 5, 10:05 UTC2h 55m
2026-07-05 AFL462 - Jul 5, 03:00 UTCJul 5, 04:35 UTC1h 35m
2026-07-04 AFL462 SVO → SVO Jul 4, 22:55 UTCJul 4, 23:20 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-73703 page for operator, model, and routing details .

Mode-S 151FE7 frequently asked

What is Mode-S code 151FE7?
151FE7 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73703.
Where is Mode-S 151FE7 registered?
Mode-S code 151FE7 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FE7 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FE7, octal 05217747, decimal 1,384,423.
What flights does 151FE7 operate?
Mode-S 151FE7 has broadcast 20 distinct callsigns, including AFL421, AFL420, AFL430, AFL431, AFL1751.