Apparatus

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sensors Mode-S transponder

0C20B4

ICAO 24-bit transponder address · allocated to Suriname

Currently assigned to HP-1844CMP · BOEING 737-800

Hex
0C20B4
Octal
03020264
Decimal
794,804
Country
SR
Tail
HP-1844CMP
Type
B738
No current signal · last broadcast Jul 26, 11:20 UTC
Flights observed
211
Distinct callsigns
20
Country
SR
Last broadcast
Jul 26, 11:20 UTC

Last known position

Most recent position reported by Mode-S 0C20B4.

Country allocation

The ICAO 24-bit address 0C20B4 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
CMP867 Copa Airlines 6 2026-06-25
CMP882 - 5 2026-07-17
CMP142 - 5 2026-07-12
CMP899 Copa Airlines 4 2026-07-19
CMP897 - 4 2026-07-20
CMP858 Copa Airlines 4 2026-07-25
CMP789 Copa Airlines 4 2026-05-18
CMP391 - 4 2026-07-01
CMP314 - 4 2026-07-13
CMP265 Copa Airlines 4 2026-05-06
CMP126 Copa Airlines 4 2026-06-01
CMP803 Copa Airlines 3 2026-06-18
CMP746 Copa Airlines 3 2026-04-23
CMP6285 Copa Airlines 3 2026-05-22
CMP484 Copa Airlines 3 2026-05-10
CMP470 - 3 2026-06-26
CMP466 Copa Airlines 3 2026-05-10
CMP445 Copa Airlines 3 2026-07-18
CMP320 Copa Airlines 3 2026-07-04
CMP291 - 3 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CMP742 MIA → PTY Jul 26, 09:45 UTCJul 26, 11:20 UTC1h 35m
2026-07-25 CMP432 PTY → MIA Jul 25, 16:30 UTCJul 26, 05:55 UTC13h 25m
2026-07-25 CMP857 MEX → PTY Jul 25, 08:25 UTCJul 25, 14:50 UTC6h 25m
2026-07-25 CMP858 PTY → MEX Jul 25, 05:55 UTCJul 25, 06:45 UTC50m
2026-07-24 CMP858 PTY → MEX Jul 24, 16:55 UTCJul 25, 05:20 UTC12h 25m
2026-07-24 CMP807 JFK → PTY Jul 24, 06:55 UTCJul 24, 15:10 UTC8h 15m
2026-07-23 CMP819 PTY → JFK Jul 23, 07:50 UTCJul 23, 20:30 UTC12h 40m
2026-07-22 CMP788 PTY → COR Jul 22, 23:45 UTCJul 23, 05:25 UTC5h 40m
2026-07-20 CMP897 - Jul 20, 08:20 UTCJul 20, 14:15 UTC5h 55m
2026-07-19 CMP899 PTY → ROS Jul 19, 14:00 UTCJul 20, 06:35 UTC16h 35m
2026-07-18 CMP445 MCO → PTY Jul 18, 22:35 UTCJul 19, 00:45 UTC2h 10m
2026-07-18 CMP478 CTG → MCO Jul 18, 14:55 UTCJul 18, 20:15 UTC5h 20m
2026-07-18 CMP836 - Jul 18, 04:40 UTCJul 18, 13:35 UTC8h 55m
2026-07-17 CMP882 - Jul 17, 16:49 UTCJul 18, 03:10 UTC10h 21m
2026-07-17 CMP882 - Jul 17, 07:44 UTCJul 18, 03:10 UTC19h 26m
2026-07-17 CMP882 - Jul 17, 05:04 UTCJul 18, 03:10 UTC22h 6m
2026-07-17 CMP882 - Jul 17, 04:35 UTCJul 18, 03:00 UTC22h 26m
2026-07-16 CMP190 PTY → GEO Jul 16, 23:29 UTCJul 17, 23:00 UTC23h 30m
2026-07-16 CMP262 CUN → BOG Jul 16, 16:19 UTCJul 16, 22:00 UTC5h 40m
2026-07-16 CMP293 PTY → CUN Jul 16, 07:40 UTCJul 16, 14:45 UTC7h 5m
2026-07-15 CMP135 - Jul 15, 21:45 UTCJul 16, 05:30 UTC7h 45m
2026-07-15 CMP136 PTY → MEX Jul 15, 04:00 UTCJul 15, 20:10 UTC16h 10m
2026-07-14 CMP136 PTY → MEX Jul 14, 23:05 UTCJul 15, 20:10 UTC21h 5m
2026-07-14 CMP229 - Jul 14, 21:05 UTCJul 15, 20:10 UTC23h 4m
2026-07-14 CMP229 - Jul 14, 20:40 UTCJul 15, 18:50 UTC22h 9m
2026-07-14 CMP228 - Jul 14, 08:15 UTCJul 14, 18:15 UTC10h 0m
2026-07-13 CMP858 CUN → MEX Jul 13, 16:15 UTCJul 14, 06:45 UTC14h 30m
2026-07-13 CMP316 - Jul 13, 08:01 UTCJul 13, 14:55 UTC6h 55m
2026-07-13 CMP314 - Jul 13, 04:15 UTCJul 13, 05:25 UTC1h 10m
2026-07-12 CMP143 - Jul 12, 22:15 UTCJul 12, 22:25 UTC10m
2026-07-12 CMP142 - Jul 12, 19:55 UTCJul 12, 20:10 UTC15m
2026-07-11 CMP139 - Jul 11, 10:05 UTCJul 11, 11:00 UTC55m
2026-07-10 CMP479 - Jul 10, 18:50 UTCJul 11, 02:35 UTC7h 45m
2026-07-09 CMP446 - Jul 9, 21:25 UTCJul 10, 16:45 UTC19h 20m
2026-07-09 CMP798 - Jul 9, 19:05 UTCJul 10, 16:45 UTC21h 40m
2026-07-09 CMP798 MTY → MCO Jul 9, 18:40 UTCJul 10, 16:45 UTC22h 5m
2026-07-09 CMP797 PTY → MTY Jul 9, 08:10 UTCJul 9, 17:20 UTC9h 10m
2026-07-08 CMP132 - Jul 8, 22:30 UTCJul 9, 05:20 UTC6h 50m
2026-07-08 CMP389 GUA → PTY Jul 8, 13:30 UTCJul 8, 20:35 UTC7h 5m
2026-07-07 CMP414 BOG → GUA Jul 7, 23:30 UTCJul 8, 04:25 UTC4h 55m
2026-07-07 CMP413 PTY → BOG Jul 7, 21:40 UTCJul 7, 21:55 UTC15m
2026-07-07 CMP312 BOS → PTY Jul 7, 13:05 UTCJul 7, 17:45 UTC4h 40m
2026-07-06 CMP366 - Jul 6, 08:50 UTCJul 7, 02:30 UTC17h 40m
2026-07-06 CMP366 - Jul 6, 04:30 UTCJul 7, 02:30 UTC22h 0m
2026-07-05 CMP882 - Jul 5, 17:05 UTCJul 6, 02:50 UTC9h 45m
2026-07-05 CMP463 PTY → COR Jul 5, 15:15 UTCJul 5, 15:25 UTC10m
2026-07-04 CMP217 - Jul 4, 22:40 UTCJul 5, 10:00 UTC11h 20m
2026-07-04 CMP128 - Jul 4, 19:35 UTCJul 4, 19:45 UTC10m
2026-07-04 CMP320 COR → PTY Jul 4, 10:20 UTCJul 4, 14:30 UTC4h 10m
2026-07-04 CMP354 CUN → PTY Jul 4, 08:25 UTCJul 4, 08:45 UTC20m

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-1844CMP page for operator, model, and routing details .

Mode-S 0C20B4 frequently asked

What is Mode-S code 0C20B4?
0C20B4 is an ICAO 24-bit transponder address. Allocated to Suriname. Assigned to HP-1844CMP.
Where is Mode-S 0C20B4 registered?
Mode-S code 0C20B4 is allocated to Suriname (SR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0C20B4 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 11:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0C20B4, octal 03020264, decimal 794,804.
What flights does 0C20B4 operate?
Mode-S 0C20B4 has broadcast 20 distinct callsigns, including CMP867, CMP882, CMP142, CMP899, CMP897.