Apparatus

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sensors Mode-S transponder

3C1AEB

ICAO 24-bit transponder address · allocated to Germany

Currently assigned to D-AZFA · EMBRAER ERJ-190-100

Hex
3C1AEB
Octal
17015353
Decimal
3,939,051
Country
DE
Tail
D-AZFA
Type
E190
Broadcasting now · callsign KLM1307 · 29,250 ft
Flights observed
358
Distinct callsigns
20
Country
DE
Last broadcast
2h ago

Current position

3C1AEB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 3C1AEB falls within the block assigned to Germany (DE) by ICAO Annex 10, Volume III. Every aircraft registered in Germany 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
KLM1282 KLM Royal Dutch Airlines 27 2026-05-28
KLM39R - 25 2026-05-28
KLM32F KLM Royal Dutch Airlines 25 2026-05-28
KLM91K KLM Royal Dutch Airlines 24 2026-05-27
KLM56H KLM Royal Dutch Airlines 21 2026-05-28
KLM17V KLM Royal Dutch Airlines 20 2026-05-28
KLM47T KLM Royal Dutch Airlines 14 2026-05-28
KLM44K KLM Royal Dutch Airlines 13 2026-05-28
KLM1498 KLM Royal Dutch Airlines 12 2026-05-30
KLM1497 KLM Royal Dutch Airlines 12 2026-05-30
KLM96E KLM Royal Dutch Airlines 11 2026-05-29
KLM95Y KLM Royal Dutch Airlines 11 2026-05-29
KLM46V KLM Royal Dutch Airlines 10 2026-05-27
KLM1821 KLM Royal Dutch Airlines 9 2026-05-27
KLM1844 KLM Royal Dutch Airlines 8 2026-05-17
KLM1479 KLM Royal Dutch Airlines 8 2026-05-15
KLM10Y KLM Royal Dutch Airlines 8 2026-05-15
KLM911 KLM Royal Dutch Airlines 7 2026-04-16
KLM90U KLM Royal Dutch Airlines 7 2026-04-16
KLM66C KLM Royal Dutch Airlines 7 2026-05-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 KLM1296 BOD → AMS May 30, 12:45 UTCMay 30, 13:35 UTC50m
2026-05-30 KLM1295 AMS → BOD May 30, 10:55 UTCMay 30, 11:45 UTC50m
2026-05-30 KLM1498 BCN → AMS May 30, 07:45 UTCMay 30, 09:40 UTC1h 55m
2026-05-30 KLM1497 AMS → BCN May 30, 04:50 UTCMay 30, 06:45 UTC1h 55m
2026-05-29 KLM96E VCE → AMS May 29, 13:00 UTCMay 29, 13:50 UTC50m
2026-05-29 KLM95Y AMS → EDI May 29, 11:15 UTCMay 29, 12:05 UTC50m
2026-05-29 KLM1230 - May 29, 08:00 UTCMay 29, 09:10 UTC1h 10m
2026-05-29 KLM1229 AMS → CDG May 29, 06:00 UTCMay 29, 07:10 UTC1h 10m
2026-05-28 KLM44K CWL → AMS May 28, 16:35 UTCMay 28, 17:30 UTC55m
2026-05-28 KLM47T AMS → CWL May 28, 14:45 UTCMay 28, 15:45 UTC1h 0m
2026-05-28 KLM32F AAL → AMS May 28, 12:30 UTCMay 28, 13:30 UTC1h 0m
2026-05-28 KLM39R - May 28, 10:35 UTCMay 28, 11:30 UTC55m
2026-05-28 KLM56H LUX → AMS May 28, 08:50 UTCMay 28, 09:35 UTC45m
2026-05-28 KLM17V AMS → LUX May 28, 07:30 UTCMay 28, 08:10 UTC40m
2026-05-28 KLM1282 EDI → AMS May 28, 04:30 UTCMay 28, 05:30 UTC1h 0m
2026-05-27 KLM91K AMS → AAL May 27, 19:35 UTCMay 27, 20:35 UTC1h 0m
2026-05-27 KLM46V FRA → AMS May 27, 17:30 UTCMay 27, 18:25 UTC55m
2026-05-27 KLM1821 AMS → BER May 27, 15:20 UTCMay 27, 16:00 UTC40m
2026-05-27 KLM32F AAL → AMS May 27, 12:25 UTCMay 27, 13:35 UTC1h 10m
2026-05-27 KLM39R - May 27, 10:40 UTCMay 27, 11:40 UTC1h 0m
2026-05-27 KLM56H LUX → AMS May 27, 08:35 UTCMay 27, 09:15 UTC40m
2026-05-27 KLM17V AMS → LUX May 27, 07:15 UTCMay 27, 07:55 UTC40m
2026-05-27 KLM1282 EDI → AMS May 27, 05:04 UTCMay 27, 06:04 UTC1h 0m
2026-05-26 KLM91K AMS → AAL May 26, 20:20 UTCMay 26, 21:20 UTC1h 0m
2026-05-26 KLM1804 DBV → AMS May 26, 16:35 UTCMay 26, 17:04 UTC30m
2026-05-26 KLM1803 AMS → DUS May 26, 15:20 UTCMay 26, 15:45 UTC25m
2026-05-26 KLM32F AAL → AMS May 26, 12:40 UTCMay 26, 13:40 UTC1h 0m
2026-05-26 KLM39R - May 26, 10:34 UTCMay 26, 11:34 UTC1h 0m
2026-05-26 KLM56H LUX → AMS May 26, 08:45 UTCMay 26, 09:29 UTC45m
2026-05-26 KLM17V AMS → LUX May 26, 07:10 UTCMay 26, 07:49 UTC40m
2026-05-26 KLM1282 EDI → AMS May 26, 04:30 UTCMay 26, 05:30 UTC1h 0m
2026-05-25 KLM91K AMS → AAL May 25, 19:40 UTCMay 25, 20:34 UTC55m
2026-05-25 KLM44K CWL → AMS May 25, 16:35 UTCMay 25, 17:30 UTC55m
2026-05-25 KLM47T AMS → CWL May 25, 14:55 UTCMay 25, 15:50 UTC55m
2026-05-25 KLM32F AAL → AMS May 25, 12:35 UTCMay 25, 13:35 UTC1h 0m
2026-05-25 KLM39R - May 25, 10:45 UTCMay 25, 11:45 UTC1h 0m
2026-05-25 KLM56H LUX → AMS May 25, 08:55 UTCMay 25, 09:35 UTC40m
2026-05-25 KLM17V AMS → LUX May 25, 07:25 UTCMay 25, 08:05 UTC40m
2026-05-25 KLM1282 EDI → AMS May 25, 05:05 UTCMay 25, 06:05 UTC1h 0m
2026-05-24 KLM91K AMS → AAL May 24, 19:40 UTCMay 24, 20:40 UTC1h 0m
2026-05-24 KLM44K CWL → AMS May 24, 17:00 UTCMay 24, 18:00 UTC1h 0m
2026-05-24 KLM47T AMS → CWL May 24, 15:00 UTCMay 24, 15:55 UTC55m
2026-05-24 KLM32F AAL → AMS May 24, 12:30 UTCMay 24, 13:35 UTC1h 5m
2026-05-24 KLM39R - May 24, 10:45 UTCMay 24, 11:45 UTC1h 0m
2026-05-24 KLM56H LUX → AMS May 24, 08:45 UTCMay 24, 09:30 UTC45m
2026-05-24 KLM17V AMS → LUX May 24, 07:20 UTCMay 24, 07:55 UTC35m
2026-05-24 KLM1282 EDI → AMS May 24, 04:40 UTCMay 24, 05:40 UTC1h 0m
2026-05-23 KLM91K AMS → AAL May 23, 19:40 UTCMay 23, 20:35 UTC55m
2026-05-23 KLM1102 EXT → AMS May 23, 16:35 UTCMay 23, 17:30 UTC55m
2026-05-23 KLM1101 AMS → EXT May 23, 14:35 UTCMay 23, 15:25 UTC50m

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 D-AZFA page for operator, model, and routing details .

Mode-S 3C1AEB frequently asked

What is Mode-S code 3C1AEB?
3C1AEB is an ICAO 24-bit transponder address. Allocated to Germany. Assigned to D-AZFA.
Where is Mode-S 3C1AEB registered?
Mode-S code 3C1AEB is allocated to Germany (DE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3C1AEB broadcasting right now?
Yes. Mode-S 3C1AEB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3C1AEB, octal 17015353, decimal 3,939,051.
What flights does 3C1AEB operate?
Mode-S 3C1AEB has broadcast 20 distinct callsigns, including KLM1282, KLM39R, KLM32F, KLM91K, KLM56H.