Apparatus

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sensors Mode-S transponder

151E38

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73272 · BOEING 777-200

Hex
151E38
Octal
05217070
Decimal
1,383,992
Country
RU
Tail
RA-73272
Type
B772
Broadcasting now · callsign KAR3655 · 36,000 ft
Flights observed
138
Distinct callsigns
20
Country
RU
Last broadcast
12h ago

Current position

151E38 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 151E38 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
KAR3542 Kar-Air 22 2026-07-11
KAR3546 - 16 2026-07-02
KAR3519 - 10 2026-07-14
KAR3520 - 8 2026-07-02
KAR3545 - 7 2026-06-10
KAR3434 - 7 2026-07-05
KAR3658 - 6 2026-07-04
KAR3645 Kar-Air 6 2026-06-27
KAR3515 - 6 2026-06-26
KAR3660 Kar-Air 5 2026-07-12
KAR3646 Kar-Air 5 2026-06-15
KAR3516 Kar-Air 5 2026-05-21
KAR3548 - 4 2026-07-07
KAR3541 - 4 2026-06-29
KAR3547 - 3 2026-06-24
KAR3478 Kar-Air 3 2026-06-22
KAR3659 Kar-Air 2 2026-06-30
KAR3655 Kar-Air 2 2026-06-24
KAR3538 Kar-Air 2 2026-06-11
KAR3484 Kar-Air 2 2026-04-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KAR3519 - Jul 14, 01:30 UTCJul 14, 10:05 UTC8h 35m
2026-07-13 KAR3519 - Jul 13, 12:40 UTCJul 14, 10:05 UTC21h 25m
2026-07-13 KAR3519 - Jul 13, 07:10 UTCJul 14, 03:15 UTC20h 5m
2026-07-12 KAR3660 CXR → IKT Jul 12, 18:10 UTCJul 13, 12:55 UTC18h 45m
2026-07-12 KAR3660 CXR → IKT Jul 12, 10:05 UTCJul 13, 07:30 UTC21h 25m
2026-07-11 KAR3542 CXR → LED Jul 11, 17:15 UTCJul 12, 10:15 UTC17h 0m
2026-07-11 KAR3542 CXR → LED Jul 11, 12:35 UTCJul 12, 10:15 UTC21h 40m
2026-07-11 KAR3542 CXR → LED Jul 11, 02:05 UTCJul 11, 18:00 UTC15h 55m
2026-07-07 KAR3548 - Jul 7, 15:30 UTCJul 8, 00:25 UTC8h 55m
2026-07-05 KAR3434 - Jul 5, 18:05 UTCJul 6, 13:30 UTC19h 25m
2026-07-05 KAR3434 - Jul 5, 17:50 UTCJul 6, 13:30 UTC19h 40m
2026-07-05 KAR3433 - Jul 5, 12:50 UTCJul 6, 11:50 UTC23h 0m
2026-07-05 KAR3657 - Jul 5, 00:10 UTCJul 5, 18:15 UTC18h 5m
2026-07-04 KAR3658 - Jul 4, 08:00 UTCJul 4, 19:50 UTC11h 50m
2026-07-02 KAR3546 - Jul 2, 22:05 UTCJul 3, 07:35 UTC9h 30m
2026-07-02 KAR3546 - Jul 2, 06:15 UTCJul 3, 06:00 UTC23h 45m
2026-07-02 KAR3520 - Jul 2, 05:05 UTCJul 2, 22:40 UTC17h 35m
2026-07-02 KAR3520 - Jul 2, 00:05 UTCJul 2, 22:40 UTC22h 35m
2026-07-01 KAR3520 - Jul 1, 10:05 UTCJul 2, 06:45 UTC20h 40m
2026-07-01 KAR3520 - Jul 1, 09:35 UTCJul 2, 06:45 UTC21h 10m
2026-07-01 KAR3519 KJA → HKT Jul 1, 04:05 UTCJul 2, 01:45 UTC21h 40m
2026-06-30 KAR3659 IKT → CXR Jun 30, 12:05 UTCJul 1, 10:05 UTC22h 0m
2026-06-29 KAR3541 - Jun 29, 23:14 UTCJun 30, 12:25 UTC13h 10m
2026-06-28 KAR3542 CXR → LED Jun 28, 18:10 UTCJun 29, 10:40 UTC16h 30m
2026-06-27 KAR3645 OVB → HKT Jun 27, 17:49 UTCJun 28, 11:25 UTC17h 35m
2026-06-26 KAR3515 - Jun 26, 19:20 UTCJun 27, 11:30 UTC16h 10m
2026-06-26 KAR3658 CXR → OVB Jun 26, 04:24 UTCJun 26, 14:59 UTC10h 35m
2026-06-25 KAR3542 CXR → LED Jun 25, 13:05 UTCJun 26, 10:10 UTC21h 5m
2026-06-25 KAR3542 CXR → LED Jun 25, 08:20 UTCJun 26, 04:59 UTC20h 40m
2026-06-25 KAR3542 CXR → LED Jun 25, 00:40 UTCJun 25, 13:50 UTC13h 10m
2026-06-24 KAR3655 KJA → CXR Jun 24, 11:24 UTCJun 25, 08:45 UTC21h 20m
2026-06-24 KAR3547 - Jun 24, 06:04 UTCJun 25, 01:14 UTC19h 10m
2026-06-24 KAR3547 - Jun 24, 04:05 UTCJun 25, 01:14 UTC21h 10m
2026-06-24 KAR3547 - Jun 24, 02:30 UTCJun 25, 01:14 UTC22h 45m
2026-06-23 KAR1293 SVO → SUI Jun 23, 04:55 UTCJun 23, 05:20 UTC25m
2026-06-22 KAR3478 HKT → SVO Jun 22, 09:24 UTCJun 22, 20:30 UTC11h 5m
2026-06-20 KAR3546 CXR → SVO Jun 20, 20:29 UTCJun 21, 05:20 UTC8h 50m
2026-06-20 KAR3546 CXR → SVO Jun 20, 06:05 UTCJun 21, 05:20 UTC23h 15m
2026-06-20 KAR3546 CXR → SVO Jun 20, 05:24 UTCJun 21, 03:59 UTC22h 35m
2026-06-20 KAR3520 HKT → KJA Jun 20, 00:49 UTCJun 20, 06:10 UTC5h 20m
2026-06-19 KAR3520 HKT → KJA Jun 19, 10:54 UTCJun 20, 06:10 UTC19h 15m
2026-06-19 KAR3519 KJA → HKT Jun 19, 05:00 UTCJun 20, 01:29 UTC20h 30m
2026-06-18 KAR3659 IKT → CXR Jun 18, 12:25 UTCJun 19, 11:30 UTC23h 4m
2026-06-17 KAR3541 - Jun 17, 23:35 UTCJun 18, 12:50 UTC13h 15m
2026-06-16 KAR3542 CXR → LED Jun 16, 17:35 UTCJun 17, 10:15 UTC16h 41m
2026-06-15 KAR3646 HKT → OVB Jun 15, 19:00 UTCJun 16, 11:30 UTC16h 30m
2026-06-14 KAR3515 OVB → HKT Jun 14, 21:45 UTCJun 15, 14:00 UTC16h 14m
2026-06-14 KAR3541 - Jun 14, 02:00 UTCJun 14, 18:00 UTC16h 0m
2026-06-13 KAR3541 - Jun 13, 22:10 UTCJun 13, 22:20 UTC10m
2026-06-13 KAR3542 CXR → LED Jun 13, 09:30 UTCJun 13, 15:20 UTC5h 50m

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-73272 page for operator, model, and routing details .

Mode-S 151E38 frequently asked

What is Mode-S code 151E38?
151E38 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73272.
Where is Mode-S 151E38 registered?
Mode-S code 151E38 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151E38 broadcasting right now?
Yes. Mode-S 151E38 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 151E38, octal 05217070, decimal 1,383,992.
What flights does 151E38 operate?
Mode-S 151E38 has broadcast 20 distinct callsigns, including KAR3542, KAR3546, KAR3519, KAR3520, KAR3545.