Apparatus

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sensors Mode-S transponder

04C045

ICAO 24-bit transponder address · allocated to Kenya

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

Hex
04C045
Octal
01140105
Decimal
311,365
Country
KE
Tail
5Y-KYF
Type
B738
No current signal · last broadcast 23h ago
Flights observed
154
Distinct callsigns
20
Country
KE
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 04C045.

Country allocation

The ICAO 24-bit address 04C045 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
KQA520 - 13 2026-07-07
KQA521 - 12 2026-07-07
KQA508 Kenya Airways 11 2026-06-11
KQA761 - 9 2026-07-13
KQA760 - 9 2026-07-13
KQA792 - 7 2026-06-29
KQA793 Kenya Airways 6 2026-06-29
KQA765 - 6 2026-06-19
KQA764 - 6 2026-06-18
KQA763 Kenya Airways 5 2026-06-05
KQA762 Kenya Airways 5 2026-06-05
KQA534 - 5 2026-07-03
KQA532 - 5 2026-07-08
KQA305 - 5 2026-07-10
KQA205 - 5 2026-07-11
KQA784 - 4 2026-07-01
KQA511 Kenya Airways 4 2026-05-26
KQA509 Kenya Airways 4 2026-05-27
KQA311 - 4 2026-07-11
KQA310 - 4 2026-07-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 KQA761 - Jul 13, 11:00 UTCJul 13, 11:20 UTC20m
2026-07-13 KQA760 - Jul 13, 08:30 UTCJul 13, 09:25 UTC55m
2026-07-11 KQA311 - Jul 11, 21:25 UTCJul 11, 21:55 UTC30m
2026-07-11 KQA310 - Jul 11, 19:05 UTCJul 11, 19:35 UTC30m
2026-07-11 KQA205 - Jul 11, 08:10 UTCJul 11, 08:20 UTC10m
2026-07-11 KQA205 - Jul 11, 02:55 UTCJul 11, 03:30 UTC35m
2026-07-11 KQA204 - Jul 11, 00:35 UTCJul 11, 01:30 UTC55m
2026-07-10 KQA305 - Jul 10, 09:10 UTCJul 10, 09:20 UTC10m
2026-07-10 KQA305 - Jul 10, 04:30 UTCJul 10, 05:00 UTC30m
2026-07-10 KQA304 - Jul 10, 02:25 UTCJul 10, 03:00 UTC35m
2026-07-09 KQA305 - Jul 9, 09:15 UTCJul 9, 09:25 UTC10m
2026-07-09 KQA305 - Jul 9, 04:35 UTCJul 9, 05:10 UTC35m
2026-07-09 KQA304 - Jul 9, 02:05 UTCJul 9, 02:40 UTC35m
2026-07-08 KQA532 - Jul 8, 12:20 UTCJul 8, 12:55 UTC35m
2026-07-07 KQA521 - Jul 7, 22:05 UTCJul 8, 04:15 UTC6h 10m
2026-07-07 KQA520 - Jul 7, 14:35 UTCJul 7, 20:40 UTC6h 5m
2026-07-07 KQA203 - Jul 7, 00:30 UTCJul 7, 01:05 UTC35m
2026-07-06 KQA202 - Jul 6, 21:35 UTCJul 6, 22:50 UTC1h 15m
2026-07-06 KQA311 - Jul 6, 01:30 UTCJul 6, 02:05 UTC35m
2026-07-05 KQA310 - Jul 5, 23:25 UTCJul 5, 23:55 UTC30m
2026-07-05 KQA532 - Jul 5, 08:55 UTCJul 5, 14:10 UTC5h 15m
2026-07-04 KQA311 - Jul 4, 21:15 UTCJul 4, 21:50 UTC35m
2026-07-04 KQA310 - Jul 4, 18:35 UTCJul 4, 19:10 UTC35m
2026-07-03 KQA534 - Jul 3, 19:15 UTCJul 3, 23:55 UTC4h 40m
2026-07-03 KQA761 - Jul 3, 10:35 UTCJul 3, 11:05 UTC30m
2026-07-03 KQA760 - Jul 3, 08:10 UTCJul 3, 08:45 UTC35m
2026-07-02 KQA521 - Jul 2, 16:50 UTCJul 2, 23:10 UTC6h 20m
2026-07-02 KQA520 - Jul 2, 14:20 UTCJul 2, 15:00 UTC40m
2026-07-01 KQA785 - Jul 1, 21:35 UTCJul 1, 21:55 UTC20m
2026-07-01 KQA784 - Jul 1, 19:25 UTCJul 1, 20:00 UTC35m
2026-06-29 KQA793 CPT → VFA Jun 29, 12:45 UTCJun 29, 13:09 UTC25m
2026-06-29 KQA792 - Jun 29, 10:50 UTCJun 29, 11:25 UTC35m
2026-06-28 KQA761 - Jun 28, 10:24 UTCJun 28, 10:50 UTC25m
2026-06-28 KQA760 - Jun 28, 08:09 UTCJun 28, 08:39 UTC30m
2026-06-27 KQA521 - Jun 27, 16:24 UTCJun 27, 16:59 UTC35m
2026-06-27 KQA520 - Jun 27, 14:35 UTCJun 27, 15:00 UTC25m
2026-06-26 KQA305 - Jun 26, 03:10 UTCJun 26, 03:45 UTC35m
2026-06-26 KQA304 - Jun 26, 00:39 UTCJun 26, 01:15 UTC35m
2026-06-24 KQA785 - Jun 24, 21:40 UTCJun 24, 22:04 UTC25m
2026-06-24 KQA784 - Jun 24, 19:44 UTCJun 24, 20:14 UTC30m
2026-06-23 KQA205 - Jun 23, 02:15 UTCJun 23, 02:49 UTC35m
2026-06-22 KQA204 - Jun 22, 23:20 UTCJun 23, 00:09 UTC50m
2026-06-22 KQA532 - Jun 22, 08:40 UTCJun 22, 13:25 UTC4h 45m
2026-06-20 KQA521 - Jun 20, 18:04 UTCJun 20, 18:45 UTC40m
2026-06-20 KQA520 - Jun 20, 16:09 UTCJun 20, 16:49 UTC40m
2026-06-19 KQA765 - Jun 19, 00:00 UTCJun 19, 00:24 UTC24m
2026-06-18 KQA764 - Jun 18, 22:10 UTCJun 18, 22:40 UTC30m
2026-06-17 KQA793 CPT → VFA Jun 17, 12:30 UTCJun 17, 12:45 UTC15m
2026-06-17 KQA792 - Jun 17, 10:25 UTCJun 17, 10:50 UTC25m
2026-06-16 KQA521 - Jun 16, 16:50 UTCJun 16, 17:30 UTC40m

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

Mode-S 04C045 frequently asked

What is Mode-S code 04C045?
04C045 is an ICAO 24-bit transponder address. Allocated to Kenya. Assigned to 5Y-KYF.
Where is Mode-S 04C045 registered?
Mode-S code 04C045 is allocated to Kenya (KE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 04C045 broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 04C045, octal 01140105, decimal 311,365.
What flights does 04C045 operate?
Mode-S 04C045 has broadcast 20 distinct callsigns, including KQA520, KQA521, KQA508, KQA761, KQA760.