Apparatus

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sensors Mode-S transponder

151FF7

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73719 · AIRBUS A-321

Hex
151FF7
Octal
05217767
Decimal
1,384,439
Country
RU
Tail
RA-73719
Type
A321
No current signal · last broadcast 10h ago
Flights observed
192
Distinct callsigns
20
Country
RU
Last broadcast
10h ago

Last known position

Most recent position reported by Mode-S 151FF7.

Country allocation

The ICAO 24-bit address 151FF7 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
AFL2144 Aeroflot Russian Airlines 8 2026-06-16
AFL2145 Aeroflot Russian Airlines 7 2026-06-17
AFL1483 Aeroflot Russian Airlines 7 2026-05-23
AFL2146 - 6 2026-07-13
AFL615 - 5 2026-06-20
AFL2142 - 5 2026-07-10
AFL1887 - 5 2026-06-29
AFL1861 Aeroflot Russian Airlines 5 2026-06-20
AFL2147 Aeroflot Russian Airlines 4 2026-07-13
AFL2143 - 4 2026-07-10
AFL1963 Aeroflot Russian Airlines 4 2026-05-25
AFL1484 - 4 2026-06-17
AFL1260 - 4 2026-06-29
AFL1007 - 4 2026-07-01
AFL1000 Aeroflot Russian Airlines 4 2026-04-23
AFL1946 Aeroflot Russian Airlines 3 2026-06-08
AFL1860 - 3 2026-06-20
AFL1451 Aeroflot Russian Airlines 3 2026-05-19
AFL1415 - 3 2026-04-16
AFL1019 - 3 2026-06-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AFL2171 - Jul 14, 07:25 UTCJul 14, 07:55 UTC30m
2026-07-14 AFL2170 - Jul 14, 05:15 UTCJul 14, 05:40 UTC25m
2026-07-13 AFL2147 AYT → SVO Jul 13, 15:15 UTCJul 13, 17:00 UTC1h 45m
2026-07-13 AFL2146 - Jul 13, 12:50 UTCJul 13, 13:40 UTC50m
2026-07-12 AFL1450 - Jul 12, 13:30 UTCJul 13, 00:20 UTC10h 50m
2026-07-11 AFL1011 - Jul 11, 15:50 UTCJul 12, 11:10 UTC19h 20m
2026-07-11 AFL1010 - Jul 11, 15:35 UTCJul 12, 11:10 UTC19h 35m
2026-07-11 AFL1010 - Jul 11, 02:40 UTCJul 11, 20:15 UTC17h 35m
2026-07-10 AFL2132 - Jul 10, 22:50 UTCJul 10, 23:10 UTC20m
2026-07-10 AFL2143 - Jul 10, 11:20 UTCJul 10, 13:00 UTC1h 40m
2026-07-10 AFL2142 - Jul 10, 09:10 UTCJul 10, 09:50 UTC40m
2026-07-08 AFL1869 - Jul 8, 20:45 UTCJul 8, 21:10 UTC25m
2026-07-08 AFL1402 - Jul 8, 08:45 UTCJul 8, 09:00 UTC15m
2026-07-06 AFL1582 SVO → RGK Jul 6, 23:20 UTCJul 6, 23:35 UTC15m
2026-07-06 AFL2147 AYT → SVO Jul 6, 15:20 UTCJul 6, 17:00 UTC1h 40m
2026-07-05 AFL2146 - Jul 5, 21:05 UTCJul 6, 13:35 UTC16h 30m
2026-07-05 AFL2134 - Jul 5, 18:30 UTCJul 5, 18:45 UTC15m
2026-07-05 AFL1304 - Jul 5, 05:45 UTCJul 5, 05:55 UTC10m
2026-07-03 AFL1914 SVO → SVO Jul 3, 13:10 UTCJul 3, 13:30 UTC20m
2026-07-02 AFL1008 - Jul 2, 17:50 UTCJul 3, 02:40 UTC8h 50m
2026-07-02 AFL2143 - Jul 2, 11:35 UTCJul 2, 13:25 UTC1h 50m
2026-07-02 AFL2142 - Jul 2, 08:35 UTCJul 2, 09:15 UTC40m
2026-07-01 AFL1007 - Jul 1, 19:50 UTCJul 1, 20:55 UTC1h 5m
2026-07-01 AFL1003 - Jul 1, 11:15 UTCJul 1, 18:10 UTC6h 55m
2026-07-01 AFL1002 - Jul 1, 08:50 UTCJul 1, 09:50 UTC1h 0m
2026-06-30 AFL1025 KGD → SVO Jun 30, 15:40 UTCJun 30, 19:50 UTC4h 10m
2026-06-30 AFL1024 SVO → KGD Jun 30, 13:20 UTCJun 30, 14:05 UTC45m
2026-06-29 AFL1260 - Jun 29, 18:05 UTCJun 29, 18:30 UTC25m
2026-06-29 AFL1887 - Jun 29, 14:44 UTCJun 29, 15:04 UTC20m
2026-06-28 AFL1887 - Jun 28, 19:20 UTCJun 29, 15:04 UTC19h 45m
2026-06-27 AFL1428 SVO → SVO Jun 27, 21:59 UTCJun 27, 22:29 UTC30m
2026-06-27 AFL1863 - Jun 27, 16:59 UTCJun 27, 17:25 UTC25m
2026-06-26 AFL1007 KGD → SVO Jun 26, 19:39 UTCJun 27, 13:00 UTC17h 20m
2026-06-26 AFL1006 SVO → KGD Jun 26, 10:35 UTCJun 26, 18:04 UTC7h 30m
2026-06-24 AFL2137 IST → SVO Jun 24, 13:05 UTCJun 24, 13:34 UTC30m
2026-06-24 AFL2136 - Jun 24, 02:05 UTCJun 24, 10:19 UTC8h 15m
2026-06-23 AFL1008 - Jun 23, 05:54 UTCJun 23, 19:50 UTC13h 55m
2026-06-22 AFL1260 SVO → UFA Jun 22, 18:15 UTCJun 23, 05:59 UTC11h 45m
2026-06-22 AFL1019 - Jun 22, 14:14 UTCJun 22, 16:14 UTC2h 0m
2026-06-21 AFL2169 DLM → SVO Jun 21, 17:50 UTCJun 22, 12:44 UTC18h 55m
2026-06-21 AFL2169 DLM → SVO Jun 21, 17:39 UTCJun 22, 12:44 UTC19h 5m
2026-06-21 AFL2168 SVO → DLM Jun 21, 14:44 UTCJun 21, 15:54 UTC1h 10m
2026-06-20 AFL1861 EVN → SVO Jun 20, 16:34 UTCJun 20, 16:59 UTC25m
2026-06-20 AFL615 - Jun 20, 10:39 UTCJun 20, 11:30 UTC50m
2026-06-20 AFL1860 SVO → SVO Jun 20, 05:29 UTCJun 20, 06:05 UTC35m
2026-06-18 AFL1423 CEK → SVO Jun 18, 21:00 UTCJun 18, 21:15 UTC15m
2026-06-17 AFL2145 AYT → SVO Jun 17, 17:50 UTCJun 17, 19:40 UTC1h 50m
2026-06-17 AFL1484 - Jun 17, 03:10 UTCJun 17, 16:20 UTC13h 10m
2026-06-16 AFL2145 AYT → SVO Jun 16, 17:49 UTCJun 17, 16:20 UTC22h 31m
2026-06-16 AFL2144 SVO → AYT Jun 16, 15:00 UTCJun 16, 16:00 UTC1h 0m

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-73719 page for operator, model, and routing details .

Mode-S 151FF7 frequently asked

What is Mode-S code 151FF7?
151FF7 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73719.
Where is Mode-S 151FF7 registered?
Mode-S code 151FF7 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FF7 broadcasting right now?
No active broadcast right now. Last signal was 10h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151FF7, octal 05217767, decimal 1,384,439.
What flights does 151FF7 operate?
Mode-S 151FF7 has broadcast 20 distinct callsigns, including AFL2144, AFL2145, AFL1483, AFL2146, AFL615.