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
No current signal · last broadcast 4h ago
Flights observed
75
Distinct callsigns
20
Country
RU
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 151E38.

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 13 2026-05-23
KAR3546 Kar-Air 6 2026-05-28
KAR3545 - 6 2026-05-06
KAR3645 Kar-Air 5 2026-05-22
KAR3519 Kar-Air 5 2026-05-15
KAR3516 Kar-Air 5 2026-05-21
KAR3434 Kar-Air 5 2026-05-19
KAR3658 Kar-Air 4 2026-05-21
KAR3646 Kar-Air 4 2026-05-11
KAR3515 Kar-Air 4 2026-05-10
KAR3660 Kar-Air 3 2026-05-13
KAR3520 Kar-Air 2 2026-05-27
KAR3484 Kar-Air 2 2026-04-13
KAR3478 Kar-Air 2 2026-05-29
KAR9903 - 1 2026-04-18
KAR3574 - 1 2026-05-30
KAR3543 - 1 2026-04-15
KAR3538 Kar-Air 1 2026-05-18
KAR3524 Kar-Air 1 2026-04-19
KAR3522 Kar-Air 1 2026-04-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 KAR3574 - May 30, 15:45 UTCMay 30, 16:20 UTC35m
2026-05-29 KAR3478 HKT → SVO May 29, 03:30 UTCMay 29, 14:10 UTC10h 40m
2026-05-28 KAR3477 SVO → HKT May 28, 14:15 UTCMay 29, 14:00 UTC23h 45m
2026-05-28 KAR3546 CXR → SVO May 28, 09:30 UTCMay 29, 04:20 UTC18h 50m
2026-05-28 KAR3546 CXR → SVO May 28, 04:25 UTCMay 29, 04:00 UTC23h 35m
2026-05-27 KAR3520 HKT → KJA May 27, 08:05 UTCMay 28, 05:00 UTC20h 55m
2026-05-27 KAR3520 HKT → KJA May 27, 03:59 UTCMay 27, 09:20 UTC5h 20m
2026-05-23 KAR3542 CXR → LED May 23, 18:10 UTCMay 24, 13:10 UTC19h 0m
2026-05-22 KAR3645 OVB → HKT May 22, 19:25 UTCMay 23, 11:35 UTC16h 9m
2026-05-21 KAR3516 HKT → OVB May 21, 19:50 UTCMay 22, 13:40 UTC17h 50m
2026-05-21 KAR3658 CXR → OVB May 21, 00:30 UTCMay 21, 16:35 UTC16h 5m
2026-05-20 KAR3542 CXR → LED May 20, 13:25 UTCMay 21, 00:45 UTC11h 20m
2026-05-19 KAR3542 CXR → LED May 19, 21:15 UTCMay 20, 14:20 UTC17h 6m
2026-05-19 KAR3434 HKT → SVX May 19, 01:55 UTCMay 19, 15:50 UTC13h 55m
2026-05-18 KAR3434 HKT → SVX May 18, 16:50 UTCMay 19, 15:50 UTC22h 59m
2026-05-18 KAR3538 CXR → SVX May 18, 02:25 UTCMay 19, 02:00 UTC23h 34m
2026-05-16 KAR3546 CXR → SVO May 16, 12:35 UTCMay 16, 13:01 UTC25m
2026-05-15 KAR3519 KJA → HKT May 15, 01:25 UTCMay 15, 07:45 UTC6h 20m
2026-05-14 KAR3519 KJA → HKT May 14, 02:35 UTCMay 15, 02:00 UTC23h 25m
2026-05-13 KAR3660 CXR → IKT May 13, 16:40 UTCMay 13, 17:05 UTC25m
2026-05-12 KAR3542 CXR → LED May 12, 15:05 UTCMay 13, 02:45 UTC11h 40m
2026-05-11 KAR3542 CXR → LED May 11, 20:05 UTCMay 12, 15:55 UTC19h 50m
2026-05-11 KAR3542 CXR → LED May 11, 19:45 UTCMay 12, 15:55 UTC20h 10m
2026-05-11 KAR3646 HKT → OVB May 11, 05:15 UTCMay 11, 20:15 UTC15h 0m
2026-05-11 KAR3646 HKT → OVB May 11, 00:15 UTCMay 11, 20:15 UTC20h 1m
2026-05-10 KAR3645 OVB → HKT May 10, 18:55 UTCMay 11, 15:05 UTC20h 10m
2026-05-10 KAR3645 OVB → HKT May 10, 14:25 UTCMay 11, 14:00 UTC23h 35m
2026-05-10 KAR3515 OVB → HKT May 10, 05:20 UTCMay 11, 00:49 UTC19h 30m
2026-05-09 KAR3658 CXR → OVB May 9, 14:45 UTCMay 10, 05:55 UTC15h 10m
2026-05-09 KAR3658 CXR → OVB May 9, 06:35 UTCMay 10, 05:55 UTC23h 20m
2026-05-09 KAR3542 CXR → LED May 9, 03:40 UTCMay 9, 15:00 UTC11h 20m
2026-05-08 KAR3542 CXR → LED May 8, 12:44 UTCMay 9, 06:40 UTC17h 55m
2026-05-07 KAR3434 HKT → SVX May 7, 01:25 UTCMay 7, 15:40 UTC14h 15m
2026-05-06 KAR3434 HKT → SVX May 6, 16:25 UTCMay 7, 15:40 UTC23h 15m
2026-05-06 KAR3433 SVX → HKT May 6, 06:05 UTCMay 7, 03:30 UTC21h 25m
2026-05-06 KAR3545 - May 6, 04:05 UTCMay 7, 03:30 UTC23h 24m
2026-05-06 KAR3545 - May 6, 03:05 UTCMay 7, 02:00 UTC22h 55m
2026-05-05 KAR3545 - May 5, 23:35 UTCMay 6, 16:55 UTC17h 20m
2026-05-04 KAR3546 CXR → SVO May 4, 05:20 UTCMay 4, 09:25 UTC4h 5m
2026-05-02 KAR3519 KJA → HKT May 2, 23:25 UTCMay 3, 05:35 UTC6h 9m
2026-04-30 KAR3660 CXR → IKT Apr 30, 23:50 UTCMay 1, 16:25 UTC16h 35m
2026-04-30 KAR3542 CXR → LED Apr 30, 09:50 UTCMay 1, 00:10 UTC14h 20m
2026-04-29 KAR3542 CXR → LED Apr 29, 18:00 UTCApr 30, 10:40 UTC16h 39m
2026-04-28 KAR3645 OVB → HKT Apr 28, 19:10 UTCApr 29, 12:00 UTC16h 51m
2026-04-27 KAR3516 HKT → OVB Apr 27, 23:50 UTCApr 28, 15:40 UTC15h 50m
2026-04-27 KAR3658 CXR → OVB Apr 27, 01:55 UTCApr 27, 18:10 UTC16h 15m
2026-04-26 KAR3542 CXR → LED Apr 26, 14:40 UTCApr 27, 02:05 UTC11h 25m
2026-04-25 KAR3542 CXR → LED Apr 25, 23:40 UTCApr 26, 17:35 UTC17h 55m
2026-04-25 KAR3434 HKT → SVX Apr 25, 04:05 UTCApr 25, 23:55 UTC19h 50m
2026-04-24 KAR3545 - Apr 24, 01:40 UTCApr 24, 20:00 UTC18h 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-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?
No active broadcast right now. Last signal was 4h ago.
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, KAR3545, KAR3645, KAR3519.