sensors Mode-S transponder

0201D1

ICAO 24-bit transponder address · allocated to Morocco

Currently assigned to CN-RHO · BOEING 737 MAX 8

Hex
0201D1
Octal
00400721
Decimal
131,537
Country
MA
Tail
CN-RHO
Type
B38M
No current signal · last broadcast 6h ago
Flights observed
255
Distinct callsigns
20
Country
MA
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 0201D1.

Country allocation

The ICAO 24-bit address 0201D1 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

Callsign Airline Flights Last seen
RAM789H Royal Air Maroc 9 2026-06-29
RAM788H - 9 2026-06-29
RAM291 - 8 2026-07-13
RAM290 - 8 2026-07-13
RAM931G Royal Air Maroc 7 2026-07-03
RAM930G - 7 2026-07-03
RAM771T - 7 2026-07-14
RAM770T - 7 2026-07-14
RAM953Q Royal Air Maroc 6 2026-06-26
RAM952Q - 6 2026-06-26
RAM801F - 5 2026-07-08
RAM800F - 5 2026-07-08
RAM973C - 4 2026-07-17
RAM972C - 4 2026-07-17
RAM971H Royal Air Maroc 4 2026-06-07
RAM970H Royal Air Maroc 4 2026-06-07
RAM941J - 4 2026-06-30
RAM940J Royal Air Maroc 4 2026-06-30
RAM811D - 4 2026-07-12
RAM810D - 4 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 RAM525 - Jul 17, 16:19 UTCJul 17, 16:29 UTC10m
2026-07-17 RAM973C - Jul 17, 12:10 UTCJul 17, 13:35 UTC1h 25m
2026-07-17 RAM972C - Jul 17, 09:04 UTCJul 17, 10:20 UTC1h 15m
2026-07-14 RAM771T ORY → CMN Jul 14, 17:25 UTCJul 14, 20:10 UTC2h 45m
2026-07-14 RAM770T - Jul 14, 13:40 UTCJul 14, 15:45 UTC2h 5m
2026-07-13 RAM879 CTA → CMN Jul 13, 19:15 UTCJul 13, 22:20 UTC3h 5m
2026-07-13 RAM878 - Jul 13, 14:50 UTCJul 13, 17:30 UTC2h 40m
2026-07-13 RAM290 - Jul 13, 05:45 UTCJul 13, 06:15 UTC30m
2026-07-13 RAM291 - Jul 13, 03:15 UTCJul 13, 03:50 UTC35m
2026-07-12 RAM811D - Jul 12, 16:15 UTCJul 12, 19:20 UTC3h 5m
2026-07-12 RAM810D - Jul 12, 11:50 UTCJul 12, 14:25 UTC2h 35m
2026-07-11 RAM751P - Jul 11, 19:50 UTCJul 11, 22:20 UTC2h 30m
2026-07-11 RAM750P - Jul 11, 16:15 UTCJul 11, 18:25 UTC2h 10m
2026-07-11 RAM933L - Jul 11, 11:25 UTCJul 11, 13:50 UTC2h 25m
2026-07-11 RAM932L - Jul 11, 07:25 UTCJul 11, 09:45 UTC2h 20m
2026-07-10 RAM851W - Jul 10, 16:25 UTCJul 10, 19:25 UTC3h 0m
2026-07-10 RAM850W - Jul 10, 12:05 UTCJul 10, 14:50 UTC2h 45m
2026-07-10 RAM845X - Jul 10, 06:00 UTCJul 10, 08:45 UTC2h 45m
2026-07-10 RAM844X - Jul 10, 01:45 UTCJul 10, 04:30 UTC2h 45m
2026-07-09 RAM799 - Jul 9, 18:25 UTCJul 9, 20:35 UTC2h 10m
2026-07-09 RAM798 - Jul 9, 15:15 UTCJul 9, 17:05 UTC1h 50m
2026-07-08 RAM293 - Jul 8, 22:40 UTCJul 8, 23:00 UTC20m
2026-07-08 RAM801F - Jul 8, 17:40 UTCJul 8, 20:25 UTC2h 45m
2026-07-08 RAM800F - Jul 8, 13:25 UTCJul 8, 16:15 UTC2h 50m
2026-07-08 RAM532X - Jul 8, 09:20 UTCJul 8, 09:45 UTC25m
2026-07-07 RAM911T IST → CMN Jul 7, 15:55 UTCJul 7, 20:20 UTC4h 25m
2026-07-07 RAM910T - Jul 7, 09:10 UTCJul 7, 13:15 UTC4h 5m
2026-07-06 RAM951X - Jul 6, 16:30 UTCJul 6, 19:05 UTC2h 35m
2026-07-06 RAM950X CMN → MXP Jul 6, 12:25 UTCJul 6, 15:05 UTC2h 40m
2026-07-05 RAM811D FRA → CMN Jul 5, 16:20 UTCJul 5, 19:20 UTC3h 0m
2026-07-05 RAM810D - Jul 5, 11:50 UTCJul 5, 14:55 UTC3h 5m
2026-07-05 RAM777Z - Jul 5, 06:35 UTCJul 5, 08:55 UTC2h 20m
2026-07-05 RAM706 - Jul 5, 02:30 UTCJul 5, 05:00 UTC2h 30m
2026-07-04 RAM807 - Jul 4, 18:15 UTCJul 4, 20:50 UTC2h 35m
2026-07-04 RAM806 - Jul 4, 14:00 UTCJul 4, 16:45 UTC2h 45m
2026-07-04 RAM290 - Jul 4, 05:40 UTCJul 4, 06:20 UTC40m
2026-07-03 RAM291 - Jul 3, 21:30 UTCJul 4, 03:50 UTC6h 20m
2026-07-03 RAM931G GVA → CMN Jul 3, 16:45 UTCJul 3, 18:55 UTC2h 10m
2026-07-03 RAM930G - Jul 3, 12:40 UTCJul 3, 15:00 UTC2h 20m
2026-07-03 RAM845X - Jul 3, 06:05 UTCJul 3, 08:40 UTC2h 35m
2026-07-03 RAM844X - Jul 3, 01:50 UTCJul 3, 04:40 UTC2h 50m
2026-07-02 RAM751P - Jul 2, 20:20 UTCJul 2, 22:35 UTC2h 15m
2026-07-02 RAM750P CMN → ORY Jul 2, 16:35 UTCJul 2, 19:05 UTC2h 30m
2026-07-02 RAM779H CDG → CMN Jul 2, 11:50 UTCJul 2, 14:20 UTC2h 30m
2026-07-02 RAM778H - Jul 2, 07:20 UTCJul 2, 10:00 UTC2h 40m
2026-06-30 RAM941J - Jun 30, 16:10 UTCJun 30, 18:45 UTC2h 35m
2026-06-30 RAM940J CMN → FCO Jun 30, 12:05 UTCJun 30, 14:45 UTC2h 40m
2026-06-29 RAM789H CDG → CMN Jun 29, 17:05 UTCJun 29, 19:29 UTC2h 25m
2026-06-29 RAM788H - Jun 29, 12:45 UTCJun 29, 15:30 UTC2h 45m
2026-06-28 RAM931G GVA → CMN Jun 28, 16:19 UTCJun 28, 18:55 UTC2h 35m

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

Mode-S 0201D1 frequently asked

What is Mode-S code 0201D1?
0201D1 is an ICAO 24-bit transponder address. Allocated to Morocco. Assigned to CN-RHO.
Where is Mode-S 0201D1 registered?
Mode-S code 0201D1 is allocated to Morocco (MA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0201D1 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0201D1, octal 00400721, decimal 131,537.
What flights does 0201D1 operate?
Mode-S 0201D1 has broadcast 20 distinct callsigns, including RAM789H, RAM788H, RAM291, RAM290, RAM931G.