sensors Mode-S transponder

020139

ICAO 24-bit transponder address · allocated to Morocco

Currently assigned to CN-MAX · BOEING 737 MAX 8

Hex
020139
Octal
00400471
Decimal
131,385
Country
MA
Tail
CN-MAX
Type
B38M
No current signal · last broadcast 11h ago
Flights observed
148
Distinct callsigns
20
Country
MA
Last broadcast
11h ago

Last known position

Most recent position reported by Mode-S 020139.

Country allocation

The ICAO 24-bit address 020139 falls within the block assigned to Morocco (MA) by ICAO Annex 10, Volume III. Every aircraft registered in Morocco 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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 RAM811D FRA → CMN May 29, 16:20 UTCMay 29, 19:15 UTC2h 55m
2026-05-29 RAM810D CMN → FRA May 29, 11:40 UTCMay 29, 14:55 UTC3h 15m
2026-05-27 RAM807 LHR → CMN May 27, 18:10 UTCMay 27, 21:05 UTC2h 55m
2026-05-27 RAM806 CMN → LHR May 27, 13:55 UTCMay 27, 16:30 UTC2h 35m
2026-05-26 RAM989 AGP → CMN May 26, 12:40 UTCMay 26, 13:10 UTC30m
2026-05-26 RAM988 CMN → AGP May 26, 10:25 UTCMay 26, 11:09 UTC45m
2026-05-25 RAM985A AGP → CMN May 25, 18:50 UTCMay 25, 19:25 UTC34m
2026-05-25 RAM984A CMN → AGP May 25, 16:25 UTCMay 25, 17:15 UTC50m
2026-05-25 RAM290 LAD → CMN May 25, 05:30 UTCMay 25, 06:05 UTC35m
2026-05-25 RAM291 CMN → LAD May 25, 03:10 UTCMay 25, 03:30 UTC20m
2026-05-24 RAM931G GVA → CMN May 24, 16:20 UTCMay 24, 18:30 UTC2h 10m
2026-05-24 RAM930G CMN → GVA May 24, 12:25 UTCMay 24, 15:00 UTC2h 35m
2026-05-23 RAM801F LHR → CMN May 23, 17:35 UTCMay 23, 20:15 UTC2h 41m
2026-05-23 RAM800F CMN → LHR May 23, 13:10 UTCMay 23, 15:50 UTC2h 40m
2026-05-22 RAM971H MAD → CMN May 22, 18:35 UTCMay 22, 19:45 UTC1h 10m
2026-05-22 RAM970H AGP → CMN May 22, 15:55 UTCMay 22, 17:10 UTC1h 15m
2026-05-22 RAM989 AGP → CMN May 22, 12:45 UTCMay 22, 13:20 UTC35m
2026-05-22 RAM988 CMN → AGP May 22, 10:30 UTCMay 22, 11:15 UTC45m
2026-05-21 RAM733M MRS → CMN May 21, 18:25 UTCMay 21, 20:20 UTC1h 55m
2026-05-21 RAM732M CMN → MRS May 21, 14:40 UTCMay 21, 16:50 UTC2h 10m
2026-05-21 RAM290 LAD → CMN May 21, 05:35 UTCMay 21, 06:05 UTC30m
2026-05-21 RAM291 CMN → LAD May 21, 02:55 UTCMay 21, 03:35 UTC40m
2026-05-20 RAM931G GVA → CMN May 20, 16:30 UTCMay 20, 18:45 UTC2h 15m
2026-05-20 RAM930G CMN → GVA May 20, 12:30 UTCMay 20, 15:05 UTC2h 35m
2026-05-19 RAM789H CDG → CMN May 19, 17:25 UTCMay 19, 20:05 UTC2h 40m
2026-05-19 RAM788H CMN → CDG May 19, 12:55 UTCMay 19, 15:40 UTC2h 45m
2026-05-19 RAM292 NDJ → CMN May 19, 09:50 UTCMay 19, 10:15 UTC25m
2026-05-18 RAM715Z NCE → CMN May 18, 18:55 UTCMay 18, 21:10 UTC2h 15m
2026-05-18 RAM714T BOD → NCE May 18, 15:05 UTCMay 18, 17:25 UTC2h 20m
2026-05-18 RAM290 LAD → CMN May 18, 05:30 UTCMay 18, 06:01 UTC30m
2026-05-18 RAM291 CMN → LAD May 18, 01:40 UTCMay 18, 03:35 UTC1h 55m
2026-05-17 RAM997 OPO → CMN May 17, 18:10 UTCMay 17, 19:15 UTC1h 5m
2026-05-17 RAM996 CMN → OPO May 17, 15:40 UTCMay 17, 16:50 UTC1h 10m
2026-05-17 RAM791T TLS → CMN May 17, 10:40 UTCMay 17, 12:30 UTC1h 50m
2026-05-17 RAM790T CMN → TLS May 17, 07:40 UTCMay 17, 09:20 UTC1h 40m
2026-05-16 RAM751P ORY → CMN May 16, 19:55 UTCMay 16, 22:30 UTC2h 35m
2026-05-16 RAM750P CMN → ORY May 16, 16:15 UTCMay 16, 18:35 UTC2h 20m
2026-05-16 RAM943 TRN → CMN May 16, 11:41 UTCMay 16, 14:11 UTC2h 30m
2026-05-16 RAM942 CMN → FCO May 16, 07:25 UTCMay 16, 09:40 UTC2h 15m
2026-05-15 RAM953Q CMN → TLV May 15, 16:15 UTCMay 15, 19:05 UTC2h 50m
2026-05-15 RAM952Q CMN → BLQ May 15, 12:25 UTCMay 15, 14:40 UTC2h 15m
2026-05-14 RAM733M MRS → CMN May 14, 18:10 UTCMay 14, 20:30 UTC2h 20m
2026-05-14 RAM732M CMN → MRS May 14, 15:10 UTCMay 14, 16:50 UTC1h 40m
2026-05-14 RAM717X NTE → CMN May 14, 10:50 UTCMay 14, 13:01 UTC2h 10m
2026-05-14 RAM716X CMN → NTE May 14, 07:25 UTCMay 14, 09:25 UTC2h 0m
2026-05-13 RAM807 LHR → CMN May 13, 20:40 UTCMay 13, 23:20 UTC2h 40m
2026-05-13 RAM806 CMN → LHR May 13, 14:30 UTCMay 13, 17:25 UTC2h 55m
2026-05-12 RAM801F LHR → CMN May 12, 17:20 UTCMay 12, 20:01 UTC2h 40m
2026-05-12 RAM800F CMN → LHR May 12, 13:05 UTCMay 12, 15:40 UTC2h 35m
2026-05-11 RAM971H MAD → CMN May 11, 18:20 UTCMay 11, 19:40 UTC1h 20m

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 CN-MAX page for operator, model, and routing details .

Mode-S 020139 frequently asked

What is Mode-S code 020139?
020139 is an ICAO 24-bit transponder address. Allocated to Morocco. Assigned to CN-MAX.
Where is Mode-S 020139 registered?
Mode-S code 020139 is allocated to Morocco (MA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 020139 broadcasting right now?
No active broadcast right now. Last signal was 11h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 020139, octal 00400471, decimal 131,385.
What flights does 020139 operate?
Mode-S 020139 has broadcast 20 distinct callsigns, including RAM800F, RAM801F, RAM931G, RAM930G, RAM989.