Apparatus

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sensors Mode-S transponder

151FE4

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73700 · AIRBUS A-330-300

Hex
151FE4
Octal
05217744
Decimal
1,384,420
Country
RU
Tail
RA-73700
Type
A333
No current signal · last broadcast 7h ago
Flights observed
85
Distinct callsigns
13
Country
RU
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 151FE4.

Country allocation

The ICAO 24-bit address 151FE4 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 13 distinct

Callsign Airline Flights Last seen
AFL1701 - 28 2026-07-14
AFL1745 - 16 2026-07-05
AFL1709 - 15 2026-07-10
AFL1713 Aeroflot Russian Airlines 6 2026-05-14
AFL1735 Aeroflot Russian Airlines 4 2026-05-04
AFL1744 Aeroflot Russian Airlines 3 2026-07-04
AFL1727 - 3 2026-07-06
AFL1743 Aeroflot Russian Airlines 2 2026-05-13
AFL1711 Aeroflot Russian Airlines 2 2026-05-22
AFL1708 Aeroflot Russian Airlines 2 2026-06-03
AFL1700 - 2 2026-07-13
AFL1747 Aeroflot Russian Airlines 1 2026-06-17
AFL1705 Aeroflot Russian Airlines 1 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFL1701 - Jul 14, 05:20 UTCJul 14, 14:35 UTC9h 15m
2026-07-13 AFL1700 SVO → SVO Jul 13, 13:10 UTCJul 13, 13:30 UTC20m
2026-07-13 AFL1701 - Jul 13, 07:30 UTCJul 13, 08:45 UTC1h 15m
2026-07-12 AFL1701 - Jul 12, 05:01 UTCJul 12, 06:15 UTC1h 15m
2026-07-10 AFL1709 - Jul 10, 00:10 UTCJul 10, 17:05 UTC16h 55m
2026-07-09 AFL1709 - Jul 9, 17:05 UTCJul 10, 17:00 UTC23h 55m
2026-07-09 AFL1709 - Jul 9, 15:45 UTCJul 10, 00:15 UTC8h 30m
2026-07-08 AFL1709 - Jul 8, 23:50 UTCJul 9, 17:15 UTC17h 25m
2026-07-08 AFL1709 - Jul 8, 16:00 UTCJul 8, 17:40 UTC1h 40m
2026-07-06 AFL1727 - Jul 6, 22:00 UTCJul 7, 14:40 UTC16h 40m
2026-07-06 AFL1727 - Jul 6, 17:05 UTCJul 7, 14:40 UTC21h 35m
2026-07-06 AFL1727 - Jul 6, 16:15 UTCJul 7, 14:40 UTC22h 25m
2026-07-06 AFL1709 - Jul 6, 00:05 UTCJul 6, 17:35 UTC17h 30m
2026-07-05 AFL1745 - Jul 5, 06:30 UTCJul 6, 00:15 UTC17h 45m
2026-07-04 AFL1745 - Jul 4, 16:00 UTCJul 5, 07:50 UTC15h 50m
2026-07-04 AFL1744 SVO → UUS Jul 4, 14:40 UTCJul 4, 14:55 UTC15m
2026-07-03 AFL1701 - Jul 3, 13:20 UTCJul 4, 06:55 UTC17h 35m
2026-07-01 AFL1701 - Jul 1, 14:10 UTCJul 2, 06:35 UTC16h 25m
2026-06-30 AFL1701 - Jun 30, 05:30 UTCJun 30, 06:45 UTC1h 15m
2026-06-29 AFL1701 - Jun 29, 06:40 UTCJun 29, 06:59 UTC20m
2026-06-25 AFL1709 VVO → SVO Jun 25, 00:05 UTCJun 25, 17:05 UTC17h 0m
2026-06-24 AFL1709 VVO → SVO Jun 24, 17:05 UTCJun 25, 16:59 UTC23h 55m
2026-06-24 AFL1709 VVO → SVO Jun 24, 16:09 UTCJun 25, 00:05 UTC7h 55m
2026-06-23 AFL1709 VVO → SVO Jun 23, 17:04 UTCJun 24, 16:59 UTC23h 55m
2026-06-22 AFL1709 VVO → SVO Jun 22, 23:24 UTCJun 23, 17:25 UTC18h 0m
2026-06-22 AFL1709 VVO → SVO Jun 22, 22:30 UTCJun 23, 17:25 UTC18h 55m
2026-06-19 AFL1701 - Jun 19, 14:15 UTCJun 20, 06:39 UTC16h 25m
2026-06-19 AFL1701 - Jun 19, 07:04 UTCJun 20, 06:39 UTC23h 35m
2026-06-19 AFL1745 - Jun 19, 06:20 UTCJun 19, 14:39 UTC8h 20m
2026-06-18 AFL1745 - Jun 18, 15:40 UTCJun 19, 14:39 UTC22h 59m
2026-06-17 AFL1747 UUS → SVO Jun 17, 13:15 UTCJun 17, 14:45 UTC1h 30m
2026-06-15 AFL1701 VVO → SVO Jun 15, 07:05 UTCJun 15, 08:20 UTC1h 15m
2026-06-12 AFL1701 VVO → SVO Jun 12, 14:10 UTCJun 13, 06:50 UTC16h 39m
2026-06-12 AFL1701 VVO → SVO Jun 12, 07:05 UTCJun 13, 06:50 UTC23h 44m
2026-06-12 AFL1745 UUS → SVO Jun 12, 06:40 UTCJun 12, 14:15 UTC7h 35m
2026-06-11 AFL1745 UUS → SVO Jun 11, 15:05 UTCJun 12, 14:15 UTC23h 10m
2026-06-11 AFL1745 UUS → SVO Jun 11, 14:50 UTCJun 12, 07:55 UTC17h 6m
2026-06-07 AFL1701 VVO → SVO Jun 7, 14:00 UTCJun 8, 06:50 UTC16h 50m
2026-06-07 AFL1700 SVO → VVO Jun 7, 13:00 UTCJun 7, 13:25 UTC25m
2026-06-07 AFL1745 UUS → SVO Jun 7, 07:05 UTCJun 7, 08:25 UTC1h 20m
2026-06-06 AFL1701 VVO → SVO Jun 6, 05:30 UTCJun 6, 06:35 UTC1h 5m
2026-06-04 AFL1709 VVO → SVO Jun 4, 15:45 UTCJun 4, 17:00 UTC1h 15m
2026-06-03 AFL1708 SVO → VVO Jun 3, 22:45 UTCJun 3, 23:10 UTC25m
2026-06-03 AFL1709 VVO → SVO Jun 3, 15:35 UTCJun 3, 16:55 UTC1h 20m
2026-06-02 AFL1709 VVO → SVO Jun 2, 15:30 UTCJun 2, 16:50 UTC1h 20m
2026-06-01 AFL1708 SVO → VVO Jun 1, 22:50 UTCJun 1, 23:10 UTC20m
2026-05-29 AFL1745 UUS → SVO May 29, 06:50 UTCMay 29, 08:55 UTC2h 5m
2026-05-22 AFL1711 KHV → SVO May 22, 05:55 UTCMay 22, 07:25 UTC1h 30m
2026-05-20 AFL1701 VVO → SVO May 20, 05:35 UTCMay 20, 06:50 UTC1h 15m
2026-05-18 AFL1711 KHV → SVO May 18, 06:20 UTCMay 18, 08:35 UTC2h 15m

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-73700 page for operator, model, and routing details .

Mode-S 151FE4 frequently asked

What is Mode-S code 151FE4?
151FE4 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73700.
Where is Mode-S 151FE4 registered?
Mode-S code 151FE4 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FE4 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FE4, octal 05217744, decimal 1,384,420.
What flights does 151FE4 operate?
Mode-S 151FE4 has broadcast 13 distinct callsigns, including AFL1701, AFL1745, AFL1709, AFL1713, AFL1735.