Apparatus

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sensors Mode-S transponder

151E83

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73347 · BOEING 777-200

Hex
151E83
Octal
05217203
Decimal
1,384,067
Country
RU
Tail
RA-73347
Type
B772
No current signal · last broadcast Jul 22, 15:00 UTC
Flights observed
132
Distinct callsigns
20
Country
RU
Last broadcast
Jul 22, 15:00 UTC

Last known position

Most recent position reported by Mode-S 151E83.

Country allocation

The ICAO 24-bit address 151E83 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
KAR3548 Kar-Air 24 2026-07-21
KAR3547 Kar-Air 14 2026-07-18
KAR3542 Kar-Air 13 2026-07-19
KAR3545 - 10 2026-06-22
KAR3477 - 7 2026-07-16
KAR3434 Kar-Air 7 2026-06-25
KAR3541 Kar-Air 6 2026-07-19
KAR3655 - 5 2026-07-18
KAR3002 Kar-Air 5 2026-07-22
KAR3657 Kar-Air 4 2026-07-20
KAR3001 Kar-Air 4 2026-06-18
KAR3659 Kar-Air 3 2026-06-07
KAR3658 - 3 2026-07-08
KAR3546 Kar-Air 3 2026-06-09
KAR3538 Kar-Air 3 2026-06-24
KAR3520 Kar-Air 3 2026-06-08
KAR3004 - 3 2026-06-19
KAR3645 - 2 2026-07-10
KAR3537 Kar-Air 2 2026-06-25
KAR3516 Kar-Air 2 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-22 KAR3002 AYT → SVO Jul 22, 13:20 UTCJul 22, 15:00 UTC1h 40m
2026-07-21 KAR3548 CXR → SVO Jul 21, 17:50 UTCJul 21, 21:45 UTC3h 55m
2026-07-20 KAR3548 CXR → SVO Jul 20, 22:15 UTCJul 21, 20:25 UTC22h 9m
2026-07-20 KAR3657 OVB → CXR Jul 20, 17:50 UTCJul 20, 22:45 UTC4h 55m
2026-07-19 KAR3541 LED → CXR Jul 19, 23:25 UTCJul 20, 14:25 UTC15h 0m
2026-07-19 KAR3541 LED → CXR Jul 19, 15:10 UTCJul 20, 14:25 UTC23h 15m
2026-07-19 KAR3542 CXR → LED Jul 19, 12:50 UTCJul 20, 09:30 UTC20h 40m
2026-07-19 KAR3542 CXR → LED Jul 19, 12:20 UTCJul 20, 09:30 UTC21h 10m
2026-07-19 KAR3542 CXR → LED Jul 19, 07:35 UTCJul 20, 04:25 UTC20h 50m
2026-07-19 KAR3542 CXR → LED Jul 19, 00:50 UTCJul 19, 23:45 UTC22h 55m
2026-07-18 KAR3655 - Jul 18, 12:10 UTCJul 19, 08:05 UTC19h 55m
2026-07-18 KAR3655 - Jul 18, 06:50 UTCJul 19, 01:15 UTC18h 25m
2026-07-18 KAR3547 SVO → CXR Jul 18, 06:30 UTCJul 19, 01:15 UTC18h 45m
2026-07-18 KAR3547 SVO → CXR Jul 18, 02:09 UTCJul 19, 00:45 UTC22h 36m
2026-07-16 KAR3477 - Jul 16, 01:20 UTCJul 16, 13:30 UTC12h 10m
2026-07-15 KAR3477 - Jul 15, 20:55 UTCJul 15, 21:25 UTC30m
2026-07-11 KAR3548 - Jul 11, 23:25 UTCJul 12, 04:30 UTC5h 5m
2026-07-11 KAR3657 - Jul 11, 04:20 UTCJul 11, 23:50 UTC19h 30m
2026-07-10 KAR3657 - Jul 10, 23:45 UTCJul 11, 04:50 UTC5h 5m
2026-07-10 KAR3646 HKT → OVB Jul 10, 06:50 UTCJul 10, 20:55 UTC14h 5m
2026-07-10 KAR3645 - Jul 10, 02:15 UTCJul 10, 20:55 UTC18h 40m
2026-07-09 KAR3516 HKT → OVB Jul 9, 00:50 UTCJul 9, 20:05 UTC19h 15m
2026-07-09 KAR3516 HKT → OVB Jul 9, 00:20 UTCJul 9, 20:05 UTC19h 45m
2026-07-08 KAR3658 - Jul 8, 10:35 UTCJul 8, 21:15 UTC10h 40m
2026-07-08 KAR3541 - Jul 8, 02:40 UTCJul 8, 02:50 UTC10m
2026-07-06 KAR3542 CXR → LED Jul 6, 22:55 UTCJul 7, 18:20 UTC19h 25m
2026-07-06 KAR3655 - Jul 6, 09:15 UTCJul 6, 23:25 UTC14h 10m
2026-07-06 KAR3655 - Jul 6, 03:00 UTCJul 6, 23:25 UTC20h 25m
2026-07-05 KAR3547 - Jul 5, 22:55 UTCJul 6, 09:45 UTC10h 50m
2026-07-04 KAR3477 - Jul 4, 04:50 UTCJul 4, 16:05 UTC11h 15m
2026-06-26 KAR3548 - Jun 26, 18:34 UTCJun 27, 00:00 UTC5h 25m
2026-06-26 KAR3548 - Jun 26, 01:54 UTCJun 27, 00:00 UTC22h 5m
2026-06-25 KAR3537 SVX → CXR Jun 25, 21:25 UTCJun 26, 19:14 UTC21h 50m
2026-06-25 KAR3434 HKT → SVX Jun 25, 08:45 UTCJun 26, 02:34 UTC17h 50m
2026-06-25 KAR3434 HKT → SVX Jun 25, 04:49 UTCJun 26, 02:34 UTC21h 45m
2026-06-25 KAR3434 HKT → SVX Jun 25, 04:40 UTCJun 26, 02:34 UTC21h 55m
2026-06-24 KAR3434 HKT → SVX Jun 24, 23:14 UTCJun 25, 21:55 UTC22h 40m
2026-06-24 KAR3538 CXR → SVX Jun 24, 03:40 UTCJun 24, 23:40 UTC20h 0m
2026-06-23 KAR3657 OVB → CXR Jun 23, 13:24 UTCJun 24, 04:10 UTC14h 45m
2026-06-23 KAR3658 CXR → OVB Jun 23, 05:00 UTCJun 23, 10:24 UTC5h 25m
2026-06-22 KAR3545 - Jun 22, 10:49 UTCJun 23, 10:24 UTC23h 35m
2026-06-22 KAR3545 - Jun 22, 08:50 UTCJun 23, 05:29 UTC20h 40m
2026-06-22 KAR3545 - Jun 22, 08:44 UTCJun 23, 05:29 UTC20h 45m
2026-06-22 KAR3545 - Jun 22, 05:24 UTCJun 22, 12:44 UTC7h 20m
2026-06-22 KAR3545 SVO → SVO Jun 22, 04:19 UTCJun 22, 04:40 UTC20m
2026-06-21 KAR3547 - Jun 21, 02:55 UTCJun 21, 16:54 UTC14h 0m
2026-06-19 KAR3002 AYT → SVO Jun 19, 23:49 UTCJun 20, 01:24 UTC1h 35m
2026-06-19 KAR3004 - Jun 19, 08:40 UTCJun 19, 21:44 UTC13h 5m
2026-06-18 KAR3002 AYT → SVO Jun 18, 19:25 UTCJun 18, 21:05 UTC1h 40m
2026-06-18 KAR3001 SVO → AYT Jun 18, 16:05 UTCJun 18, 17:25 UTC1h 20m

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-73347 page for operator, model, and routing details .

Mode-S 151E83 frequently asked

What is Mode-S code 151E83?
151E83 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73347.
Where is Mode-S 151E83 registered?
Mode-S code 151E83 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E83 broadcasting right now?
No active broadcast right now. Last signal was Jul 22, 15:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E83, octal 05217203, decimal 1,384,067.
What flights does 151E83 operate?
Mode-S 151E83 has broadcast 20 distinct callsigns, including KAR3548, KAR3547, KAR3542, KAR3545, KAR3477.