Apparatus

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sensors Mode-S transponder

E840DF

ICAO 24-bit transponder address · allocated to Ecuador

Currently assigned to HC-DAG · BOEING 737-400

Hex
E840DF
Octal
72040337
Decimal
15,220,959
Country
EC
Tail
HC-DAG
Type
B734
No current signal · last broadcast Jul 25, 22:50 UTC
Flights observed
88
Distinct callsigns
10
Country
EC
Last broadcast
Jul 25, 22:50 UTC

Last known position

Most recent position reported by Mode-S E840DF.

Country allocation

The ICAO 24-bit address E840DF falls within the block assigned to Ecuador (EC) by ICAO Annex 10, Volume III. Every aircraft registered in Ecuador 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 10 distinct

Callsign Airline Flights Last seen
RER9512 - 19 2026-07-23
RER9513 - 15 2026-07-22
RER9710 - 12 2026-07-22
RER9510 - 12 2026-06-13
RER9511 - 11 2026-07-14
RER9711 - 7 2026-07-20
RER9911 - 5 2026-07-15
RER9910 - 4 2026-07-24
RER9810 - 2 2026-04-17
RER9210 - 1 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 RER9210 - Jul 25, 22:00 UTCJul 25, 22:50 UTC50m
2026-07-24 RER9910 - Jul 24, 20:50 UTCJul 24, 21:15 UTC25m
2026-07-23 RER9512 - Jul 23, 15:55 UTCJul 23, 18:00 UTC2h 5m
2026-07-22 RER9513 - Jul 22, 21:20 UTCJul 23, 14:15 UTC16h 55m
2026-07-22 RER9513 - Jul 22, 15:15 UTCJul 23, 13:30 UTC22h 15m
2026-07-22 RER9710 - Jul 22, 12:45 UTCJul 23, 08:20 UTC19h 35m
2026-07-21 RER9512 - Jul 21, 15:50 UTCJul 22, 15:30 UTC23h 40m
2026-07-21 RER9512 - Jul 21, 14:25 UTCJul 22, 13:05 UTC22h 40m
2026-07-20 RER9711 - Jul 20, 19:55 UTCJul 21, 12:10 UTC16h 14m
2026-07-17 RER9512 - Jul 17, 12:40 UTCJul 17, 19:35 UTC6h 55m
2026-07-16 RER9513 - Jul 16, 15:49 UTCJul 17, 10:50 UTC19h 0m
2026-07-16 RER9513 - Jul 16, 15:40 UTCJul 17, 10:50 UTC19h 10m
2026-07-15 RER9911 - Jul 15, 19:55 UTCJul 15, 20:35 UTC40m
2026-07-14 RER9511 - Jul 14, 15:00 UTCJul 14, 19:45 UTC4h 45m
2026-07-13 RER9710 - Jul 13, 22:00 UTCJul 14, 13:05 UTC15h 5m
2026-07-10 RER9910 - Jul 10, 20:55 UTCJul 10, 21:35 UTC40m
2026-07-09 RER9512 - Jul 9, 12:25 UTCJul 9, 14:10 UTC1h 45m
2026-07-08 RER9513 - Jul 8, 19:40 UTCJul 9, 10:20 UTC14h 40m
2026-07-08 RER9513 - Jul 8, 15:15 UTCJul 9, 09:30 UTC18h 15m
2026-07-07 RER9512 - Jul 7, 15:50 UTCJul 8, 15:30 UTC23h 40m
2026-07-07 RER9512 - Jul 7, 14:20 UTCJul 7, 16:15 UTC1h 55m
2026-07-06 RER9513 - Jul 6, 18:35 UTCJul 7, 12:20 UTC17h 45m
2026-07-06 RER9711 - Jul 6, 16:25 UTCJul 7, 12:20 UTC19h 55m
2026-07-04 RER9911 - Jul 4, 19:55 UTCJul 4, 20:40 UTC45m
2026-07-03 RER9512 - Jul 3, 13:25 UTCJul 3, 20:50 UTC7h 25m
2026-07-02 RER9513 - Jul 2, 16:15 UTCJul 3, 11:25 UTC19h 10m
2026-07-01 RER9512 - Jul 1, 13:50 UTCJul 1, 15:55 UTC2h 5m
2026-06-30 RER9513 - Jun 30, 20:40 UTCJul 1, 11:30 UTC14h 50m
2026-06-23 RER9512 - Jun 23, 15:19 UTCJun 23, 16:54 UTC1h 35m
2026-06-23 RER9513 - Jun 23, 11:54 UTCJun 23, 12:29 UTC35m
2026-06-21 RER9512 - Jun 21, 13:44 UTCJun 21, 14:59 UTC1h 15m
2026-06-21 RER9512 - Jun 21, 13:00 UTCJun 21, 13:24 UTC25m
2026-06-21 RER9513 - Jun 21, 09:29 UTCJun 21, 11:10 UTC1h 40m
2026-06-13 RER9510 - Jun 13, 12:50 UTCJun 13, 19:30 UTC6h 40m
2026-06-12 RER9511 - Jun 12, 15:50 UTCJun 13, 11:00 UTC19h 9m
2026-06-12 RER9511 - Jun 12, 15:40 UTCJun 13, 11:00 UTC19h 19m
2026-06-11 RER9510 - Jun 11, 13:10 UTCJun 11, 15:20 UTC2h 10m
2026-06-10 RER9511 - Jun 10, 17:40 UTCJun 11, 11:15 UTC17h 35m
2026-06-10 RER9511 - Jun 10, 15:35 UTCJun 11, 11:15 UTC19h 40m
2026-06-09 RER9512 - Jun 9, 14:00 UTCJun 9, 15:50 UTC1h 50m
2026-06-08 RER9710 - Jun 8, 18:00 UTCJun 9, 12:15 UTC18h 15m
2026-06-08 RER9710 - Jun 8, 15:50 UTCJun 9, 12:15 UTC20h 25m
2026-06-07 RER9510 - Jun 7, 12:30 UTCJun 7, 14:35 UTC2h 5m
2026-06-06 RER9710 - Jun 6, 20:45 UTCJun 7, 10:50 UTC14h 5m
2026-06-02 RER9512 - Jun 2, 13:50 UTCJun 2, 19:00 UTC5h 10m
2026-06-01 RER9711 - Jun 1, 18:25 UTCJun 2, 11:55 UTC17h 30m
2026-05-31 RER9512 - May 31, 20:30 UTCJun 1, 18:50 UTC22h 20m
2026-05-31 RER9512 - May 31, 13:00 UTCMay 31, 21:25 UTC8h 25m
2026-05-30 RER9513 - May 30, 20:35 UTCMay 31, 10:50 UTC14h 15m
2026-05-30 RER9711 - May 30, 02:30 UTCMay 30, 23:45 UTC21h 15m

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 HC-DAG page for operator, model, and routing details .

Mode-S E840DF frequently asked

What is Mode-S code E840DF?
E840DF is an ICAO 24-bit transponder address. Allocated to Ecuador. Assigned to HC-DAG.
Where is Mode-S E840DF registered?
Mode-S code E840DF is allocated to Ecuador (EC). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E840DF broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 22:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E840DF, octal 72040337, decimal 15,220,959.
What flights does E840DF operate?
Mode-S E840DF has broadcast 10 distinct callsigns, including RER9512, RER9513, RER9710, RER9510, RER9511.