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
Broadcasting now · callsign RAM789H · 18,800 ft
Flights observed
139
Distinct callsigns
20
Country
MA
Last broadcast
58m ago

Current position

0201D1 is currently broadcasting. Map zoomed to live position.

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

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 RAM789H CDG → CMN Jun 2, 16:55 UTCJun 2, 18:15 UTC1h 20m
2026-06-02 RAM788H CMN → CDG Jun 2, 12:55 UTCJun 2, 15:30 UTC2h 35m
2026-06-01 RAM717X NTE → CMN Jun 1, 17:50 UTCJun 1, 20:15 UTC2h 25m
2026-06-01 RAM716X CMN → NTE Jun 1, 14:20 UTCJun 1, 16:25 UTC2h 5m
2026-06-01 RAM1423 VIL → CMN Jun 1, 12:00 UTCJun 1, 12:20 UTC20m
2026-05-31 RAM833B BRU → CMN May 31, 17:25 UTCMay 31, 20:15 UTC2h 50m
2026-05-31 RAM832B CMN → BRU May 31, 12:55 UTCMay 31, 16:05 UTC3h 10m
2026-05-30 RAM807 LHR → CMN May 30, 18:10 UTCMay 30, 20:55 UTC2h 45m
2026-05-30 RAM806 CMN → LHR May 30, 13:50 UTCMay 30, 16:45 UTC2h 55m
2026-05-30 RAM290 LAD → CMN May 30, 05:50 UTCMay 30, 12:20 UTC6h 30m
2026-05-30 RAM291 CMN → LAD May 30, 02:45 UTCMay 30, 03:20 UTC35m
2026-05-29 RAM953Q CMN → TLV May 29, 16:45 UTCMay 29, 19:20 UTC2h 35m
2026-05-29 RAM952Q CMN → BLQ May 29, 12:40 UTCMay 29, 15:25 UTC2h 45m
2026-05-29 RAM522T BKO → CMN May 29, 05:30 UTCMay 29, 05:40 UTC10m
2026-05-28 RAM523T CMN → BKO May 28, 22:30 UTCMay 28, 22:55 UTC25m
2026-05-28 RAM801F LHR → CMN May 28, 18:05 UTCMay 28, 20:55 UTC2h 50m
2026-05-28 RAM800F CMN → LHR May 28, 13:10 UTCMay 28, 15:50 UTC2h 40m
2026-05-28 RAM551 COO → CMN May 28, 09:15 UTCMay 28, 09:40 UTC25m
2026-05-27 RAM801F LHR → CMN May 27, 17:30 UTCMay 27, 20:25 UTC2h 55m
2026-05-27 RAM800F CMN → LHR May 27, 13:05 UTCMay 27, 15:40 UTC2h 35m
2026-05-26 RAM811D FRA → CMN May 26, 16:10 UTCMay 26, 18:55 UTC2h 45m
2026-05-26 RAM810D CMN → FRA May 26, 11:44 UTCMay 26, 14:45 UTC3h 0m
2026-05-26 RAM526S CKY → CMN May 26, 06:04 UTCMay 26, 06:14 UTC10m
2026-05-25 RAM941J FCO → CMN May 25, 16:20 UTCMay 25, 18:40 UTC2h 20m
2026-05-25 RAM940J CMN → FCO May 25, 12:10 UTCMay 25, 14:40 UTC2h 30m
2026-05-25 RAM526S CKY → CMN May 25, 02:35 UTCMay 25, 03:15 UTC40m
2026-05-24 RAM851W MST → RTM May 24, 16:20 UTCMay 24, 19:10 UTC2h 50m
2026-05-24 RAM850W CMN → MST May 24, 12:00 UTCMay 24, 14:50 UTC2h 50m
2026-05-23 RAM807 LHR → CMN May 23, 18:10 UTCMay 23, 20:45 UTC2h 35m
2026-05-23 RAM806 CMN → LHR May 23, 14:05 UTCMay 23, 16:40 UTC2h 35m
2026-05-23 RAM290 LAD → CMN May 23, 05:25 UTCMay 23, 11:35 UTC6h 10m
2026-05-23 RAM291 CMN → LAD May 23, 03:00 UTCMay 23, 03:35 UTC35m
2026-05-22 RAM953Q CMN → TLV May 22, 16:25 UTCMay 22, 18:45 UTC2h 20m
2026-05-22 RAM952Q CMN → BLQ May 22, 12:20 UTCMay 22, 14:55 UTC2h 35m
2026-05-21 RAM801F LHR → CMN May 21, 17:45 UTCMay 21, 20:20 UTC2h 35m
2026-05-21 RAM800F CMN → LHR May 21, 13:15 UTCMay 21, 15:50 UTC2h 35m
2026-05-20 RAM807 LHR → CMN May 20, 18:00 UTCMay 20, 20:30 UTC2h 30m
2026-05-20 RAM806 CMN → LHR May 20, 14:05 UTCMay 20, 16:35 UTC2h 30m
2026-05-20 RAM285 CMN → BGF May 20, 03:40 UTCMay 20, 04:05 UTC25m
2026-05-19 RAM507C CMN → DLA May 19, 10:20 UTCMay 19, 10:45 UTC25m
2026-05-19 RAM507C CMN → DLA May 19, 04:05 UTCMay 19, 04:25 UTC20m
2026-05-18 RAM951X MXP → CMN May 18, 17:00 UTCMay 18, 19:30 UTC2h 29m
2026-05-18 RAM950X CMN → MXP May 18, 12:55 UTCMay 18, 15:30 UTC2h 35m
2026-05-17 RAM833B BRU → CMN May 17, 17:10 UTCMay 17, 19:55 UTC2h 45m
2026-05-17 RAM832B CMN → BRU May 17, 13:05 UTCMay 17, 15:45 UTC2h 40m
2026-05-16 RAM789H CDG → CMN May 16, 17:01 UTCMay 16, 19:45 UTC2h 45m
2026-05-16 RAM788H CMN → CDG May 16, 12:50 UTCMay 16, 15:16 UTC2h 25m
2026-05-15 RAM771T ORY → CMN May 15, 17:50 UTCMay 15, 19:55 UTC2h 5m
2026-05-15 RAM770T CMN → ORY May 15, 14:00 UTCMay 15, 16:35 UTC2h 34m
2026-05-14 RAM983 LIS → CMN May 14, 17:55 UTCMay 14, 18:50 UTC55m

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?
Yes. Mode-S 0201D1 is currently airborne.
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, RAM771T, RAM770T, RAM953Q.