Apparatus

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sensors Mode-S transponder

0C21FA

ICAO 24-bit transponder address · allocated to Suriname

Hex
0C21FA
Octal
03020772
Decimal
795,130
Country
SR
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
161
Distinct callsigns
20
Country
SR
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 0C21FA.

Country allocation

The ICAO 24-bit address 0C21FA 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
CMP421 Copa Airlines 16 2026-07-24
CMP205 Copa Airlines 7 2026-07-25
CMP477 Copa Airlines 6 2026-07-18
CMP476 - 6 2026-07-17
CMP9818 Copa Airlines 4 2026-04-16
CMP733 Copa Airlines 4 2026-05-15
CMP420 Copa Airlines 4 2026-07-24
CMP867 Copa Airlines 3 2026-07-04
CMP817 Copa Airlines 3 2026-06-27
CMP712 Copa Airlines 3 2026-06-02
CMP626 - 3 2026-06-21
CMP463 Copa Airlines 3 2026-06-02
CMP456 - 3 2026-07-14
CMP451 - 3 2026-06-12
CMP450 Copa Airlines 3 2026-06-12
CMP404 - 3 2026-06-26
CMP253 - 3 2026-07-15
CMP141 Copa Airlines 3 2026-05-07
CMP117 - 3 2026-06-21
CMP897 Copa Airlines 2 2026-05-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CMP205 PTY → BSB Jul 25, 22:35 UTCJul 26, 22:30 UTC23h 56m
2026-07-25 CMP205 PTY → BSB Jul 25, 22:25 UTCJul 26, 19:20 UTC20h 56m
2026-07-25 CMP205 PTY → BSB Jul 25, 19:00 UTCJul 26, 15:40 UTC20h 41m
2026-07-25 CMP205 PTY → BSB Jul 25, 18:15 UTCJul 26, 15:40 UTC21h 26m
2026-07-25 CMP205 PTY → BSB Jul 25, 14:35 UTCJul 26, 10:35 UTC20h 1m
2026-07-25 CMP205 PTY → BSB Jul 25, 10:50 UTCJul 26, 10:30 UTC23h 41m
2026-07-25 CMP205 PTY → BSB Jul 25, 09:00 UTCJul 26, 06:55 UTC21h 56m
2026-07-24 CMP421 MDZ → PTY Jul 24, 23:30 UTCJul 25, 22:30 UTC23h 0m
2026-07-24 CMP421 MDZ → PTY Jul 24, 22:10 UTCJul 25, 19:30 UTC21h 20m
2026-07-24 CMP421 MDZ → PTY Jul 24, 18:35 UTCJul 25, 18:15 UTC23h 40m
2026-07-24 CMP421 MDZ → PTY Jul 24, 17:55 UTCJul 25, 15:50 UTC21h 55m
2026-07-24 CMP420 PTY → MDZ Jul 24, 10:45 UTCJul 25, 09:50 UTC23h 5m
2026-07-24 CMP421 MDZ → PTY Jul 24, 09:00 UTCJul 25, 00:10 UTC15h 10m
2026-07-24 CMP420 PTY → MDZ Jul 24, 00:35 UTCJul 25, 00:10 UTC23h 35m
2026-07-23 CMP421 MDZ → PTY Jul 23, 18:35 UTCJul 24, 18:30 UTC23h 55m
2026-07-23 CMP421 MDZ → PTY Jul 23, 17:20 UTCJul 24, 10:55 UTC17h 35m
2026-07-23 CMP421 MDZ → PTY Jul 23, 15:05 UTCJul 24, 10:55 UTC19h 50m
2026-07-23 CMP421 MDZ → PTY Jul 23, 10:35 UTCJul 24, 09:50 UTC23h 15m
2026-07-23 CMP426 PUJ → PTY Jul 23, 10:20 UTCJul 24, 00:35 UTC14h 15m
2026-07-23 CMP200 PTY → PEI Jul 23, 01:00 UTCJul 23, 01:15 UTC15m
2026-07-22 CMP307 - Jul 22, 18:30 UTCJul 22, 18:50 UTC20m
2026-07-21 CMP484 YUL → PTY Jul 21, 12:45 UTCJul 22, 01:20 UTC12h 35m
2026-07-21 CMP422 PTY → YUL Jul 21, 01:20 UTCJul 21, 04:35 UTC3h 15m
2026-07-20 CMP421 MDZ → PTY Jul 20, 08:30 UTCJul 20, 20:35 UTC12h 5m
2026-07-19 CMP421 MDZ → PTY Jul 19, 23:10 UTCJul 20, 20:35 UTC21h 25m
2026-07-19 CMP421 MDZ → PTY Jul 19, 22:00 UTCJul 20, 20:30 UTC22h 30m
2026-07-19 CMP421 MDZ → PTY Jul 19, 15:15 UTCJul 20, 09:15 UTC18h 0m
2026-07-19 CMP421 MDZ → PTY Jul 19, 14:05 UTCJul 20, 09:15 UTC19h 10m
2026-07-19 CMP420 PTY → MDZ Jul 19, 10:15 UTCJul 20, 08:30 UTC22h 15m
2026-07-18 CMP477 DEN → PTY Jul 18, 05:15 UTCJul 19, 00:30 UTC19h 15m
2026-07-17 CMP476 SJO → DEN Jul 17, 14:39 UTCJul 17, 23:45 UTC9h 5m
2026-07-17 CMP851 - Jul 17, 08:00 UTCJul 17, 13:20 UTC5h 20m
2026-07-16 CMP236 - Jul 16, 14:25 UTCJul 17, 05:20 UTC14h 55m
2026-07-15 CMP844 ATL → ORD Jul 15, 21:35 UTCJul 16, 12:20 UTC14h 45m
2026-07-15 CMP253 LAS → ATL Jul 15, 07:50 UTCJul 15, 19:30 UTC11h 40m
2026-07-14 CMP456 - Jul 14, 20:25 UTCJul 15, 05:20 UTC8h 54m
2026-07-14 CMP101 - Jul 14, 10:35 UTCJul 14, 18:40 UTC8h 5m
2026-07-13 CMP716 AUS → IAD Jul 13, 20:55 UTCJul 14, 08:00 UTC11h 5m
2026-07-13 CMP715 PTY → AUS Jul 13, 15:10 UTCJul 13, 18:50 UTC3h 40m
2026-07-11 CMP855 - Jul 11, 17:30 UTCJul 12, 10:30 UTC17h 0m
2026-07-11 CMP855 - Jul 11, 13:15 UTCJul 12, 10:30 UTC21h 15m
2026-07-11 CMP769 - Jul 11, 04:15 UTCJul 11, 17:40 UTC13h 25m
2026-07-08 CMP891 - Jul 8, 21:05 UTCJul 9, 00:00 UTC2h 55m
2026-07-08 CMP880 - Jul 8, 16:05 UTCJul 8, 19:10 UTC3h 5m
2026-07-07 CMP349 AUA → PTY Jul 7, 17:30 UTCJul 8, 16:25 UTC22h 55m
2026-07-07 CMP348 PTY → AUA Jul 7, 15:55 UTCJul 7, 16:05 UTC10m
2026-07-06 CMP709 - Jul 6, 23:45 UTCJul 7, 03:20 UTC3h 35m
2026-07-06 CMP708 - Jul 6, 15:30 UTCJul 6, 19:10 UTC3h 40m
2026-07-05 CMP840 - Jul 5, 09:25 UTCJul 5, 10:10 UTC45m
2026-07-04 CMP868 - Jul 4, 20:00 UTCJul 5, 04:10 UTC8h 10m

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.

Mode-S 0C21FA frequently asked

What is Mode-S code 0C21FA?
0C21FA is an ICAO 24-bit transponder address. Allocated to Suriname.
Where is Mode-S 0C21FA registered?
Mode-S code 0C21FA is allocated to Suriname (SR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0C21FA broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0C21FA, octal 03020772, decimal 795,130.
What flights does 0C21FA operate?
Mode-S 0C21FA has broadcast 20 distinct callsigns, including CMP421, CMP205, CMP477, CMP476, CMP9818.