sensors Mode-S transponder

0201A1

ICAO 24-bit transponder address · allocated to Morocco

Currently assigned to CN-RHC · BOEING 737 MAX 8

Hex
0201A1
Octal
00400641
Decimal
131,489
Country
MA
Tail
CN-RHC
Type
B38M
No current signal · last broadcast 1h ago
Flights observed
114
Distinct callsigns
20
Country
MA
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 0201A1.

Country allocation

The ICAO 24-bit address 0201A1 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 RAM553 CMN → COO May 29, 22:35 UTCMay 30, 09:45 UTC11h 10m
2026-05-29 RAM985A AGP → CMN May 29, 18:35 UTCMay 29, 19:25 UTC50m
2026-05-29 RAM984A CMN → AGP May 29, 16:20 UTCMay 29, 17:05 UTC45m
2026-05-28 RAM524 BKO → CMN May 28, 23:05 UTCMay 28, 23:35 UTC30m
2026-05-26 RAM953Q CMN → TLV May 26, 16:30 UTCMay 26, 19:20 UTC2h 50m
2026-05-26 RAM952Q CMN → BLQ May 26, 12:30 UTCMay 26, 15:09 UTC2h 40m
2026-05-26 RAM555 CMN → LOS May 26, 00:24 UTCMay 26, 00:44 UTC20m
2026-05-25 RAM801F LHR → CMN May 25, 17:40 UTCMay 25, 20:24 UTC2h 44m
2026-05-25 RAM800F CMN → LHR May 25, 13:05 UTCMay 25, 15:40 UTC2h 35m
2026-05-24 RAM997 OPO → CMN May 24, 18:20 UTCMay 24, 19:35 UTC1h 15m
2026-05-24 RAM996 CMN → OPO May 24, 15:40 UTCMay 24, 16:55 UTC1h 15m
2026-05-24 RAM791T TLS → CMN May 24, 10:50 UTCMay 24, 12:35 UTC1h 45m
2026-05-24 RAM790T CMN → TLS May 24, 07:45 UTCMay 24, 09:35 UTC1h 50m
2026-05-22 - - May 22, 21:15 UTCMay 22, 21:25 UTC10m
2026-05-22 RAM983 LIS → CMN May 22, 18:15 UTCMay 22, 19:05 UTC50m
2026-05-22 RAM982 CMN → LIS May 22, 16:00 UTCMay 22, 16:50 UTC50m
2026-05-21 RAM765B ORY → CMN May 21, 15:40 UTCMay 21, 18:00 UTC2h 20m
2026-05-21 RAM764B CMN → ORY May 21, 11:30 UTCMay 21, 13:50 UTC2h 20m
2026-05-20 RAM801F LHR → CMN May 20, 17:40 UTCMay 20, 20:15 UTC2h 35m
2026-05-20 RAM800F CMN → LHR May 20, 13:05 UTCMay 20, 15:45 UTC2h 40m
2026-05-20 RAM578 BJL → CMN May 20, 02:30 UTCMay 20, 03:05 UTC35m
2026-05-20 RAM579 CMN → BJL May 20, 00:40 UTCMay 20, 01:20 UTC40m
2026-05-19 RAM833B BRU → CMN May 19, 17:10 UTCMay 19, 20:15 UTC3h 5m
2026-05-19 RAM832B CMN → BRU May 19, 12:55 UTCMay 19, 15:55 UTC3h 0m
2026-05-19 RAM578 BJL → CMN May 19, 02:35 UTCMay 19, 03:05 UTC30m
2026-05-19 RAM579 CMN → BJL May 19, 00:40 UTCMay 19, 01:20 UTC40m
2026-05-18 RAM983 LIS → CMN May 18, 18:10 UTCMay 18, 19:05 UTC54m
2026-05-18 RAM982 CMN → LIS May 18, 15:45 UTCMay 18, 16:45 UTC1h 0m
2026-05-18 RAM265 CMN → FIH May 18, 01:55 UTCMay 18, 02:25 UTC30m
2026-05-17 RAM931G GVA → CMN May 17, 16:05 UTCMay 17, 18:25 UTC2h 20m
2026-05-17 RAM930G CMN → GVA May 17, 12:30 UTCMay 17, 14:45 UTC2h 15m
2026-05-17 RAM777Z ORY → CMN May 17, 06:20 UTCMay 17, 08:40 UTC2h 20m
2026-05-17 RAM706 CMN → ORY May 17, 02:25 UTCMay 17, 04:45 UTC2h 20m
2026-05-16 RAM524 BKO → CMN May 16, 23:05 UTCMay 16, 23:20 UTC15m
2026-05-16 RAM973C MAD → CMN May 16, 12:01 UTCMay 16, 13:05 UTC1h 5m
2026-05-16 RAM972C CMN → MAD May 16, 09:16 UTCMay 16, 10:25 UTC1h 10m
2026-05-16 RAM1401 OUD → CMN May 16, 06:31 UTCMay 16, 07:01 UTC30m
2026-05-15 RAM1400 CMN → OUD May 15, 22:20 UTCMay 15, 22:55 UTC35m
2026-05-15 RAM931G GVA → CMN May 15, 16:20 UTCMay 15, 18:40 UTC2h 20m
2026-05-15 RAM930G CMN → GVA May 15, 12:30 UTCMay 15, 14:40 UTC2h 10m
2026-05-15 RAM777Z ORY → CMN May 15, 06:25 UTCMay 15, 08:45 UTC2h 20m
2026-05-15 RAM706 CMN → ORY May 15, 02:35 UTCMay 15, 05:00 UTC2h 25m
2026-05-14 RAM801F LHR → CMN May 14, 18:50 UTCMay 14, 21:30 UTC2h 40m
2026-05-14 RAM800F CMN → LHR May 14, 13:10 UTCMay 14, 15:55 UTC2h 45m
2026-05-13 RAM961U BCN → CMN May 13, 18:35 UTCMay 13, 20:25 UTC1h 50m
2026-05-13 RAM960U CMN → BCN May 13, 15:45 UTCMay 13, 17:10 UTC1h 25m
2026-05-13 RAM965Y BCN → CMN May 13, 12:05 UTCMay 13, 13:45 UTC1h 40m
2026-05-13 RAM964Y CMN → BCN May 13, 09:00 UTCMay 13, 10:30 UTC1h 30m
2026-05-11 RAM733M MRS → CMN May 11, 17:55 UTCMay 11, 20:20 UTC2h 25m
2026-05-11 RAM732M CMN → MRS May 11, 14:55 UTCMay 11, 16:40 UTC1h 45m

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

Mode-S 0201A1 frequently asked

What is Mode-S code 0201A1?
0201A1 is an ICAO 24-bit transponder address. Allocated to Morocco. Assigned to CN-RHC.
Where is Mode-S 0201A1 registered?
Mode-S code 0201A1 is allocated to Morocco (MA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0201A1 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0201A1, octal 00400641, decimal 131,489.
What flights does 0201A1 operate?
Mode-S 0201A1 has broadcast 20 distinct callsigns, including RAM801F, RAM800F, RAM507C, RAM983, RAM982.