Apparatus

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sensors Mode-S transponder

0C20CF

ICAO 24-bit transponder address · allocated to Suriname

Currently assigned to HP-1855CMP · BOEING 737-800

Hex
0C20CF
Octal
03020317
Decimal
794,831
Country
SR
Tail
HP-1855CMP
Type
B738
No current signal · last broadcast 9h ago
Flights observed
191
Distinct callsigns
20
Country
SR
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 0C20CF.

Country allocation

The ICAO 24-bit address 0C20CF falls within the block assigned to Suriname (SR) by ICAO Annex 10, Volume III. Every aircraft registered in Suriname 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
CMP477 - 11 2026-07-04
CMP205 - 9 2026-06-29
CMP476 - 7 2026-07-03
CMP235 Copa Airlines 6 2026-05-28
CMP723 Copa Airlines 5 2026-06-15
CMP470 - 4 2026-07-10
CMP445 - 4 2026-06-29
CMP391 - 4 2026-07-13
CMP236 Copa Airlines 4 2026-05-28
CMP836 Copa Airlines 3 2026-04-29
CMP471 Copa Airlines 3 2026-07-11
CMP434 - 3 2026-06-16
CMP420 - 3 2026-07-09
CMP404 - 3 2026-06-14
CMP357 - 3 2026-04-22
CMP240 Copa Airlines 3 2026-06-12
CMP142 - 3 2026-07-08
CMP891 - 2 2026-06-13
CMP880 Copa Airlines 2 2026-06-13
CMP862 Copa Airlines 2 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 CMP392 SJO → PTY Jul 13, 15:05 UTCJul 14, 01:15 UTC10h 10m
2026-07-13 CMP392 SJO → PTY Jul 13, 12:40 UTCJul 13, 13:50 UTC1h 10m
2026-07-13 CMP391 SJO → GUA Jul 13, 02:10 UTCJul 13, 03:25 UTC1h 15m
2026-07-12 CMP391 - Jul 12, 16:10 UTCJul 13, 01:05 UTC8h 55m
2026-07-11 CMP351 - Jul 11, 23:15 UTCJul 12, 18:40 UTC19h 25m
2026-07-11 CMP352 - Jul 11, 20:55 UTCJul 12, 18:40 UTC21h 45m
2026-07-11 CMP471 YYZ → PTY Jul 11, 12:30 UTCJul 11, 23:20 UTC10h 50m
2026-07-10 CMP470 - Jul 10, 19:20 UTCJul 11, 05:05 UTC9h 45m
2026-07-10 CMP187 PTY → SJU Jul 10, 16:20 UTCJul 10, 16:30 UTC10m
2026-07-09 CMP420 - Jul 9, 14:00 UTCJul 10, 08:45 UTC18h 45m
2026-07-09 CMP420 - Jul 9, 07:40 UTCJul 10, 00:10 UTC16h 30m
2026-07-09 CMP420 - Jul 9, 04:45 UTCJul 10, 00:10 UTC19h 25m
2026-07-08 CMP191 - Jul 8, 22:25 UTCJul 9, 16:25 UTC18h 0m
2026-07-08 CMP142 - Jul 8, 19:45 UTCJul 8, 20:00 UTC15m
2026-07-08 CMK392 - Jul 8, 12:35 UTCJul 8, 13:00 UTC25m
2026-07-07 CMP391 - Jul 7, 07:50 UTCJul 8, 03:25 UTC19h 35m
2026-07-07 CMP276 - Jul 7, 07:25 UTCJul 8, 03:25 UTC20h 0m
2026-07-06 CMP262 CUN → PTY Jul 6, 16:30 UTCJul 6, 23:20 UTC6h 50m
2026-07-06 CMP293 PTY → CUN Jul 6, 07:55 UTCJul 6, 14:45 UTC6h 50m
2026-07-05 CMP803 JFK → PTY Jul 5, 14:05 UTCJul 5, 23:40 UTC9h 35m
2026-07-05 CMP808 - Jul 5, 07:25 UTCJul 5, 07:50 UTC25m
2026-07-04 CMP808 - Jul 4, 21:50 UTCJul 5, 07:20 UTC9h 30m
2026-07-04 CMP477 DEN → CUN Jul 4, 05:00 UTCJul 4, 20:20 UTC15h 20m
2026-07-03 CMP476 - Jul 3, 18:50 UTCJul 3, 23:55 UTC5h 5m
2026-06-30 CMP262 CUN → PTY Jun 30, 16:10 UTCJun 30, 17:40 UTC1h 30m
2026-06-29 CMP205 - Jun 29, 23:44 UTCJun 30, 14:45 UTC15h 1m
2026-06-29 CMP205 - Jun 29, 18:25 UTCJun 30, 14:45 UTC20h 21m
2026-06-29 CMP205 - Jun 29, 13:49 UTCJun 30, 13:25 UTC23h 36m
2026-06-29 CMP205 - Jun 29, 09:05 UTCJun 30, 06:35 UTC21h 31m
2026-06-29 CMP205 - Jun 29, 05:09 UTCJun 30, 02:25 UTC21h 16m
2026-06-29 CMP445 - Jun 29, 00:14 UTCJun 29, 23:44 UTC23h 30m
2026-06-28 CMP445 - Jun 28, 22:20 UTCJun 29, 18:30 UTC20h 10m
2026-06-28 CMP195 MEX → PTY Jun 28, 12:05 UTCJun 28, 20:09 UTC8h 5m
2026-06-27 CMP194 - Jun 27, 14:09 UTCJun 28, 06:00 UTC15h 50m
2026-06-26 CMP394 - Jun 26, 19:50 UTCJun 27, 14:35 UTC18h 45m
2026-06-26 CMP393 PTY → TPA Jun 26, 15:05 UTCJun 26, 17:25 UTC2h 20m
2026-06-25 CMP894 JFK → PTY Jun 25, 17:54 UTCJun 25, 18:04 UTC10m
2026-06-24 CMP349 AUA → PTY Jun 24, 17:20 UTCJun 24, 17:40 UTC20m
2026-06-24 CMP348 PTY → AUA Jun 24, 15:54 UTCJun 24, 16:05 UTC10m
2026-06-24 CMP173 - Jun 24, 10:04 UTCJun 24, 11:50 UTC1h 45m
2026-06-23 CMP427 - Jun 23, 18:34 UTCJun 24, 02:30 UTC7h 55m
2026-06-23 CMP298 PTY → SDQ Jun 23, 16:35 UTCJun 23, 16:44 UTC10m
2026-06-22 CMP788 - Jun 22, 19:19 UTCJun 23, 01:30 UTC6h 10m
2026-06-22 CMP358 - Jun 22, 16:24 UTCJun 22, 17:44 UTC1h 20m
2026-06-20 CMP484 YUL → PTY Jun 20, 12:54 UTCJun 20, 17:29 UTC4h 35m
2026-06-19 CMP422 - Jun 19, 16:04 UTCJun 20, 04:24 UTC12h 20m
2026-06-18 CMP477 - Jun 18, 05:50 UTCJun 19, 00:49 UTC18h 59m
2026-06-18 CMP477 - Jun 18, 04:55 UTCJun 19, 00:49 UTC19h 54m
2026-06-17 CMP476 - Jun 17, 12:10 UTCJun 17, 23:50 UTC11h 40m
2026-06-16 CMP434 - Jun 16, 10:15 UTCJun 17, 02:00 UTC15h 46m

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 HP-1855CMP page for operator, model, and routing details .

Mode-S 0C20CF frequently asked

What is Mode-S code 0C20CF?
0C20CF is an ICAO 24-bit transponder address. Allocated to Suriname. Assigned to HP-1855CMP.
Where is Mode-S 0C20CF registered?
Mode-S code 0C20CF is allocated to Suriname (SR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0C20CF broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0C20CF, octal 03020317, decimal 794,831.
What flights does 0C20CF operate?
Mode-S 0C20CF has broadcast 20 distinct callsigns, including CMP477, CMP205, CMP476, CMP235, CMP723.