Apparatus

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sensors Mode-S transponder

009E21

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZS-LKA · EMBRAER ERJ-190-400

Hex
009E21
Octal
00117041
Decimal
40,481
Country
ZA
Tail
ZS-LKA
Type
E295
No current signal · last broadcast 1h ago
Flights observed
287
Distinct callsigns
20
Country
ZA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 009E21.

Country allocation

The ICAO 24-bit address 009E21 falls within the block assigned to South Africa (ZA) by ICAO Annex 10, Volume III. Every aircraft registered in South Africa 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
LNK554P - 36 2026-07-05
LNK792B - 34 2026-07-04
LNK790H - 34 2026-07-05
LNK789G - 31 2026-07-04
LNK553C - 25 2026-07-04
LNK799P - 22 2026-07-13
LNK658U - 12 2026-07-08
LNK657T - 11 2026-07-08
LNK676C - 10 2026-07-08
LNK664Y - 10 2026-07-10
LNK622N - 10 2026-07-09
LNK663X - 7 2026-07-10
LNK621M - 7 2026-07-09
LNK606V - 7 2026-07-10
LNK937X - 4 2026-07-05
LNK920K - 4 2026-07-11
LNK672A - 4 2026-07-10
LNK607W - 3 2026-07-07
LNK011T - 3 2026-07-13
LNK010Z - 3 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 LNK799P - Jul 13, 16:55 UTCJul 14, 06:15 UTC13h 20m
2026-07-13 LNK011T - Jul 13, 12:15 UTCJul 13, 12:45 UTC30m
2026-07-12 LNK010Z - Jul 12, 11:01 UTCJul 12, 11:20 UTC20m
2026-07-11 LNK797N - Jul 11, 08:35 UTCJul 11, 12:15 UTC3h 40m
2026-07-11 LNK920K - Jul 11, 05:10 UTCJul 11, 06:45 UTC1h 35m
2026-07-10 LNK606V CPT → CPT Jul 10, 15:10 UTCJul 10, 18:40 UTC3h 30m
2026-07-10 LNK664Y - Jul 10, 11:50 UTCJul 10, 14:10 UTC2h 20m
2026-07-10 LNK663X - Jul 10, 08:45 UTCJul 10, 10:25 UTC1h 40m
2026-07-10 LNK672A CPT → CPT Jul 10, 04:30 UTCJul 10, 07:25 UTC2h 55m
2026-07-09 LNK606V CPT → CPT Jul 9, 15:00 UTCJul 9, 18:40 UTC3h 40m
2026-07-09 LNK664Y CPT → CPT Jul 9, 08:45 UTCJul 9, 14:05 UTC5h 20m
2026-07-09 LNK622N - Jul 9, 06:50 UTCJul 9, 07:20 UTC30m
2026-07-09 LNK621M - Jul 9, 05:10 UTCJul 9, 05:25 UTC15m
2026-07-08 LNK676C CPT → CPT Jul 8, 15:20 UTCJul 8, 18:15 UTC2h 55m
2026-07-08 LNK658U - Jul 8, 11:45 UTCJul 8, 14:00 UTC2h 15m
2026-07-08 LNK657T - Jul 8, 08:30 UTCJul 8, 10:10 UTC1h 40m
2026-07-08 LNK621M CPT → CPT Jul 8, 05:10 UTCJul 8, 07:25 UTC2h 15m
2026-07-07 LNK607W CPT → CPT Jul 7, 15:05 UTCJul 7, 18:50 UTC3h 45m
2026-07-07 LNK664Y - Jul 7, 08:40 UTCJul 7, 14:05 UTC5h 25m
2026-07-06 LNK606V CPT → CPT Jul 6, 15:05 UTCJul 6, 18:25 UTC3h 20m
2026-07-06 LNK664Y - Jul 6, 11:55 UTCJul 6, 14:00 UTC2h 5m
2026-07-06 LNK663X - Jul 6, 08:40 UTCJul 6, 10:25 UTC1h 45m
2026-07-06 LNK672A CPT → CPT Jul 6, 04:35 UTCJul 6, 07:30 UTC2h 55m
2026-07-05 LNK937X - Jul 5, 18:50 UTCJul 5, 20:50 UTC2h 0m
2026-07-05 LNK790H - Jul 5, 12:25 UTCJul 5, 15:50 UTC3h 25m
2026-07-05 LNK554P - Jul 5, 08:20 UTCJul 5, 11:05 UTC2h 45m
2026-07-04 LNK792B - Jul 4, 16:35 UTCJul 5, 06:50 UTC14h 15m
2026-07-04 LNK790H - Jul 4, 15:05 UTCJul 4, 15:20 UTC15m
2026-07-04 LNK789G - Jul 4, 11:45 UTCJul 4, 12:05 UTC20m
2026-07-04 LNK553C - Jul 4, 07:45 UTCJul 4, 10:15 UTC2h 30m
2026-07-03 LNK799P - Jul 3, 17:05 UTCJul 3, 17:25 UTC20m
2026-07-03 LNK789G - Jul 3, 11:55 UTCJul 3, 15:45 UTC3h 50m
2026-07-03 LNK554P - Jul 3, 08:05 UTCJul 3, 10:35 UTC2h 30m
2026-07-02 LNK792B - Jul 2, 16:40 UTCJul 3, 06:40 UTC14h 0m
2026-07-02 LNK011T - Jul 2, 12:30 UTCJul 2, 13:00 UTC30m
2026-07-01 LNK010Z - Jul 1, 10:50 UTCJul 1, 11:15 UTC25m
2026-06-30 LNK789G - Jun 30, 11:30 UTCJun 30, 15:10 UTC3h 40m
2026-06-30 LNK554P - Jun 30, 07:45 UTCJun 30, 10:10 UTC2h 25m
2026-06-29 LNK792B - Jun 29, 16:35 UTCJun 30, 06:30 UTC13h 56m
2026-06-29 LNK011T - Jun 29, 12:00 UTCJun 29, 12:29 UTC30m
2026-06-28 LNK010Z - Jun 28, 10:24 UTCJun 28, 10:50 UTC25m
2026-06-27 LNK798C PLZ → JNB Jun 27, 08:35 UTCJun 27, 12:25 UTC3h 50m
2026-06-27 LNK920K - Jun 27, 05:15 UTCJun 27, 06:54 UTC1h 40m
2026-06-26 LNK676C CPT → CPT Jun 26, 15:29 UTCJun 26, 18:20 UTC2h 50m
2026-06-26 LNK658U - Jun 26, 12:00 UTCJun 26, 14:19 UTC2h 20m
2026-06-26 LNK657T - Jun 26, 08:45 UTCJun 26, 10:35 UTC1h 50m
2026-06-26 LNK622N - Jun 26, 06:50 UTCJun 26, 07:14 UTC25m
2026-06-26 LNK621M - Jun 26, 05:10 UTCJun 26, 05:24 UTC15m
2026-06-25 LNK676C CPT → CPT Jun 25, 15:20 UTCJun 25, 18:19 UTC3h 0m
2026-06-25 LNK658U - Jun 25, 11:50 UTCJun 25, 13:59 UTC2h 10m

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 ZS-LKA page for operator, model, and routing details .

Mode-S 009E21 frequently asked

What is Mode-S code 009E21?
009E21 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-LKA.
Where is Mode-S 009E21 registered?
Mode-S code 009E21 is allocated to South Africa (ZA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 009E21 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 009E21, octal 00117041, decimal 40,481.
What flights does 009E21 operate?
Mode-S 009E21 has broadcast 20 distinct callsigns, including LNK554P, LNK792B, LNK790H, LNK789G, LNK553C.