Apparatus

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sensors Mode-S transponder

04C03B

ICAO 24-bit transponder address · allocated to Kenya

Currently assigned to 5Y-KYD · BOEING 737-800

Hex
04C03B
Octal
01140073
Decimal
311,355
Country
KE
Tail
5Y-KYD
Type
B738
No current signal · last broadcast 5h ago
Flights observed
169
Distinct callsigns
20
Country
KE
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 04C03B.

Country allocation

The ICAO 24-bit address 04C03B falls within the block assigned to Kenya (KE) by ICAO Annex 10, Volume III. Every aircraft registered in Kenya 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
KQA761 - 18 2026-07-09
KQA760 - 17 2026-07-09
KQA784 - 9 2026-06-27
KQA785 - 8 2026-06-27
KQA764 - 7 2026-07-03
KQA762 Kenya Airways 7 2026-07-13
KQA305 - 7 2026-07-07
KQA763 Kenya Airways 6 2026-07-13
KQA311 - 6 2026-07-10
KQA310 - 6 2026-07-10
KQA793 Kenya Airways 5 2026-05-27
KQA792 Kenya Airways 5 2026-05-27
KQA765 Kenya Airways 5 2026-05-12
KQA534 Kenya Airways 5 2026-05-28
KQA521 - 5 2026-07-04
KQA520 - 5 2026-07-04
KQA304 - 5 2026-07-07
KQA535 - 4 2026-07-09
KQA205 Kenya Airways 4 2026-06-13
KQA783 Kenya Airways 3 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KQA510 - Jul 14, 12:25 UTCJul 14, 12:50 UTC25m
2026-07-13 KQA763 JNB → NBO Jul 13, 15:30 UTCJul 13, 15:55 UTC25m
2026-07-13 KQA762 NBO → JNB Jul 13, 13:25 UTCJul 13, 14:00 UTC35m
2026-07-12 KQA783 LVI → NBO Jul 12, 12:35 UTCJul 12, 12:50 UTC15m
2026-07-12 KQA782 - Jul 12, 10:40 UTCJul 12, 11:15 UTC35m
2026-07-11 KQA508 - Jul 11, 17:35 UTCJul 11, 23:30 UTC5h 55m
2026-07-10 KQA311 - Jul 10, 21:15 UTCJul 10, 21:55 UTC40m
2026-07-10 KQA310 - Jul 10, 18:40 UTCJul 10, 19:15 UTC35m
2026-07-09 KQA535 - Jul 9, 19:10 UTCJul 10, 00:05 UTC4h 55m
2026-07-09 KQA761 - Jul 9, 10:45 UTCJul 9, 11:15 UTC30m
2026-07-09 KQA760 - Jul 9, 08:25 UTCJul 9, 08:55 UTC30m
2026-07-08 KQA761 - Jul 8, 10:30 UTCJul 8, 11:00 UTC30m
2026-07-08 KQA760 - Jul 8, 08:15 UTCJul 8, 08:50 UTC35m
2026-07-07 KQA305 - Jul 7, 05:05 UTCJul 7, 05:35 UTC30m
2026-07-07 KQA304 - Jul 7, 02:55 UTCJul 7, 03:30 UTC35m
2026-07-06 KQA533 - Jul 6, 17:20 UTCJul 6, 17:45 UTC25m
2026-07-05 KQA203 - Jul 5, 23:30 UTCJul 6, 00:05 UTC35m
2026-07-05 KQA202 - Jul 5, 20:40 UTCJul 5, 21:40 UTC1h 0m
2026-07-04 KQA521 - Jul 4, 19:55 UTCJul 5, 02:15 UTC6h 20m
2026-07-04 KQA520 - Jul 4, 12:20 UTCJul 4, 18:25 UTC6h 5m
2026-07-03 KQA311 DST → DST Jul 3, 23:30 UTCJul 4, 00:00 UTC30m
2026-07-03 KQA310 - Jul 3, 21:10 UTCJul 3, 21:45 UTC35m
2026-07-03 KQA765D - Jul 3, 03:35 UTCJul 3, 04:05 UTC30m
2026-07-03 KQA764 - Jul 3, 01:25 UTCJul 3, 01:55 UTC30m
2026-07-02 KQA305 - Jul 2, 03:55 UTCJul 2, 04:25 UTC30m
2026-07-02 KQA304 - Jul 2, 01:25 UTCJul 2, 02:15 UTC50m
2026-07-01 KQA763 JNB → NBO Jul 1, 15:40 UTCJul 1, 16:05 UTC25m
2026-07-01 KQA762 NBO → JNB Jul 1, 13:00 UTCJul 1, 13:35 UTC35m
2026-06-30 KQA762 NBO → JNB Jun 30, 16:50 UTCJul 1, 13:35 UTC20h 45m
2026-06-30 KQA521 - Jun 30, 16:30 UTCJul 1, 13:35 UTC21h 5m
2026-06-30 KQA520 - Jun 30, 14:15 UTCJun 30, 15:00 UTC45m
2026-06-28 KQA311 - Jun 28, 21:20 UTCJun 28, 21:59 UTC40m
2026-06-28 KQA310 - Jun 28, 18:49 UTCJun 28, 19:20 UTC30m
2026-06-27 KQA785 - Jun 27, 12:34 UTCJun 27, 13:00 UTC25m
2026-06-27 KQA784 - Jun 27, 09:44 UTCJun 27, 10:19 UTC35m
2026-06-26 KQA311 - Jun 26, 21:20 UTCJun 26, 21:55 UTC35m
2026-06-26 KQA310 - Jun 26, 18:54 UTCJun 26, 19:24 UTC30m
2026-06-25 KQA305 - Jun 25, 05:00 UTCJun 25, 05:29 UTC30m
2026-06-25 KQA304 - Jun 25, 02:39 UTCJun 25, 03:15 UTC35m
2026-06-23 KQA311 - Jun 23, 21:49 UTCJun 23, 22:19 UTC30m
2026-06-23 KQA310 - Jun 23, 19:29 UTCJun 23, 20:19 UTC50m
2026-06-23 KQA305 - Jun 23, 03:15 UTCJun 23, 03:39 UTC25m
2026-06-23 KQA304 - Jun 23, 01:04 UTCJun 23, 01:40 UTC35m
2026-06-21 KQA311 - Jun 21, 21:10 UTCJun 21, 21:34 UTC25m
2026-06-21 KQA310 - Jun 21, 18:44 UTCJun 21, 19:09 UTC25m
2026-06-20 KQA785 CPT → NBO Jun 20, 12:30 UTCJun 20, 12:50 UTC20m
2026-06-20 KQA784 - Jun 20, 10:09 UTCJun 20, 10:34 UTC25m
2026-06-19 KQA761 - Jun 19, 10:24 UTCJun 19, 10:54 UTC30m
2026-06-19 KQA760 - Jun 19, 08:09 UTCJun 19, 08:44 UTC35m
2026-06-18 KQA761 - Jun 18, 10:20 UTCJun 18, 10:45 UTC25m

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 5Y-KYD page for operator, model, and routing details .

Mode-S 04C03B frequently asked

What is Mode-S code 04C03B?
04C03B is an ICAO 24-bit transponder address. Allocated to Kenya. Assigned to 5Y-KYD.
Where is Mode-S 04C03B registered?
Mode-S code 04C03B is allocated to Kenya (KE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 04C03B broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 04C03B, octal 01140073, decimal 311,355.
What flights does 04C03B operate?
Mode-S 04C03B has broadcast 20 distinct callsigns, including KQA761, KQA760, KQA784, KQA785, KQA764.