sensors Mode-S transponder
0C21A5
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9803CMP · BOEING 737 MAX 8
- Hex
- 0C21A5
- Octal
- 03020645
- Decimal
- 795,045
- Country
- SR
- Tail
- HP-9803CMP
- Type
- B38M
- Flights observed
- 106
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address 0C21A5 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 |
|---|---|---|---|
| CMP821 | Copa Airlines | 7 | 2026-04-20 |
| CMP734 | Copa Airlines | 6 | 2026-05-27 |
| CMP423 | Copa Airlines | 6 | 2026-05-29 |
| CMP424 | Copa Airlines | 5 | 2026-05-20 |
| CMP420 | Copa Airlines | 4 | 2026-05-06 |
| CMP868 | Copa Airlines | 3 | 2026-04-26 |
| CMP820 | Copa Airlines | 3 | 2026-04-21 |
| CMP476 | Copa Airlines | 3 | 2026-05-10 |
| CMP361 | Copa Airlines | 3 | 2026-05-22 |
| CMP287 | Copa Airlines | 3 | 2026-04-27 |
| CMP262 | Copa Airlines | 3 | 2026-04-25 |
| CMP149 | Copa Airlines | 3 | 2026-05-26 |
| CMP131 | Copa Airlines | 3 | 2026-05-21 |
| CMP867 | Copa Airlines | 2 | 2026-04-26 |
| CMP838 | Copa Airlines | 2 | 2026-04-13 |
| CMP798 | Copa Airlines | 2 | 2026-04-23 |
| CMP797 | Copa Airlines | 2 | 2026-04-22 |
| CMP732 | Copa Airlines | 2 | 2026-04-19 |
| CMP484 | Copa Airlines | 2 | 2026-05-09 |
| CMP317 | Copa Airlines | 2 | 2026-05-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CMP423 | YUL → PTY | May 29, 22:35 UTC | May 30, 01:15 UTC | 2h 40m |
| 2026-05-28 | CMP462 | LIM → PTY | May 28, 12:35 UTC | May 28, 13:20 UTC | 45m |
| 2026-05-27 | CMP489 | PTY → LIM | May 27, 09:00 UTC | May 28, 03:15 UTC | 18h 15m |
| 2026-05-27 | CMP734 | CNF → PTY | May 27, 05:19 UTC | May 28, 03:15 UTC | 21h 55m |
| 2026-05-27 | CMP734 | CNF → PTY | May 27, 05:09 UTC | May 28, 03:15 UTC | 22h 5m |
| 2026-05-26 | CMP734 | CNF → PTY | May 26, 14:00 UTC | May 27, 09:15 UTC | 19h 15m |
| 2026-05-26 | CMP734 | CNF → PTY | May 26, 09:35 UTC | May 27, 09:15 UTC | 23h 40m |
| 2026-05-26 | CMP149 | MEX → PTY | May 26, 07:34 UTC | May 26, 09:09 UTC | 1h 35m |
| 2026-05-25 | CMP138 | PTY → MEX | May 25, 18:05 UTC | May 26, 01:14 UTC | 7h 9m |
| 2026-05-25 | CMP789 | COR → PTY | May 25, 10:10 UTC | May 25, 16:10 UTC | 6h 0m |
| 2026-05-24 | CMP788 | PTY → COR | May 24, 00:50 UTC | May 24, 10:40 UTC | 9h 50m |
| 2026-05-23 | CMP244 | BOG → PTY | May 23, 19:55 UTC | May 23, 20:05 UTC | 10m |
| 2026-05-23 | CMP389 | GUA → PTY | May 23, 13:20 UTC | May 23, 18:35 UTC | 5h 16m |
| 2026-05-22 | CMP496 | PTY → GUA | May 22, 22:45 UTC | May 23, 04:20 UTC | 5h 34m |
| 2026-05-22 | CMP361 | GUA → PTY | May 22, 16:45 UTC | May 22, 21:15 UTC | 4h 30m |
| 2026-05-22 | CMP380 | GUA → MGA | May 22, 16:25 UTC | May 22, 16:30 UTC | 5m |
| 2026-05-21 | CMP132 | LIM → PTY | May 21, 22:15 UTC | May 22, 14:40 UTC | 16h 24m |
| 2026-05-21 | CMP131 | PTY → LIM | May 21, 19:30 UTC | May 21, 20:05 UTC | 35m |
| 2026-05-20 | CMP424 | FLN → PTY | May 20, 06:50 UTC | May 20, 15:10 UTC | 8h 20m |
| 2026-05-19 | CMP423 | YUL → PTY | May 19, 08:30 UTC | May 20, 03:05 UTC | 18h 35m |
| 2026-05-18 | CMP467 | RDU → PTY | May 18, 21:00 UTC | May 19, 06:50 UTC | 9h 50m |
| 2026-05-18 | CMP466 | PTY → RDU | May 18, 05:50 UTC | May 18, 18:25 UTC | 12h 35m |
| 2026-05-18 | CMP424 | FLN → PTY | May 18, 04:40 UTC | May 18, 04:55 UTC | 15m |
| 2026-05-18 | CMP423 | YUL → PTY | May 18, 02:40 UTC | May 18, 03:01 UTC | 20m |
| 2026-05-17 | CMP186 | MTY → PTY | May 17, 07:20 UTC | May 18, 01:15 UTC | 17h 55m |
| 2026-05-16 | CMP175 | PTY → MTY | May 16, 19:00 UTC | May 17, 04:50 UTC | 9h 50m |
| 2026-05-16 | CMP424 | FLN → PTY | May 16, 05:40 UTC | May 16, 17:01 UTC | 11h 21m |
| 2026-05-16 | CMP424 | FLN → PTY | May 16, 04:40 UTC | May 16, 05:00 UTC | 20m |
| 2026-05-16 | CMP423 | YUL → PTY | May 16, 02:35 UTC | May 16, 02:45 UTC | 10m |
| 2026-05-15 | CMP423 | YUL → PTY | May 15, 08:00 UTC | May 16, 01:15 UTC | 17h 14m |
| 2026-05-14 | CMP421 | MDZ → PTY | May 14, 23:25 UTC | May 15, 23:10 UTC | 23h 44m |
| 2026-05-14 | CMP317 | CUN → PTY | May 14, 17:20 UTC | May 15, 16:50 UTC | 23h 29m |
| 2026-05-14 | CMP317 | CUN → PTY | May 14, 17:10 UTC | May 15, 14:20 UTC | 21h 10m |
| 2026-05-14 | CMP316 | PTY → CUN | May 14, 13:55 UTC | May 14, 15:35 UTC | 1h 40m |
| 2026-05-13 | CMP316 | PTY → CUN | May 13, 17:10 UTC | May 14, 15:15 UTC | 22h 5m |
| 2026-05-13 | CMP424 | FLN → PTY | May 13, 06:45 UTC | May 13, 15:15 UTC | 8h 30m |
| 2026-05-12 | CMP423 | YUL → PTY | May 12, 08:05 UTC | May 13, 01:30 UTC | 17h 25m |
| 2026-05-12 | CMP314 | PTY → POS | May 12, 04:20 UTC | May 12, 05:20 UTC | 1h 0m |
| 2026-05-11 | CMP361 | GUA → PTY | May 11, 16:40 UTC | May 11, 21:10 UTC | 4h 30m |
| 2026-05-11 | CMP477 | DEN → PTY | May 11, 05:00 UTC | May 11, 14:30 UTC | 9h 30m |
| 2026-05-10 | CMP476 | PTY → DEN | May 10, 05:20 UTC | May 10, 23:50 UTC | 18h 30m |
| 2026-05-10 | CMP476 | PTY → DEN | May 10, 05:10 UTC | May 10, 23:50 UTC | 18h 40m |
| 2026-05-10 | CMP476 | PTY → DEN | May 10, 00:20 UTC | May 10, 23:15 UTC | 22h 55m |
| 2026-05-09 | CMP484 | YUL → PTY | May 9, 13:20 UTC | May 10, 07:50 UTC | 18h 30m |
| 2026-05-09 | CMP484 | YUL → PTY | May 9, 12:55 UTC | May 10, 07:50 UTC | 18h 55m |
| 2026-05-08 | CMP422 | PTY → YUL | May 8, 12:10 UTC | May 9, 04:15 UTC | 16h 5m |
| 2026-05-08 | CMP194 | PTY → MEX | May 8, 05:24 UTC | May 8, 06:20 UTC | 55m |
| 2026-05-07 | CMP361 | GUA → PTY | May 7, 22:40 UTC | May 8, 04:49 UTC | 6h 10m |
| 2026-05-06 | CMP420 | PTY → MDZ | May 6, 23:10 UTC | May 7, 14:35 UTC | 15h 25m |
| 2026-05-06 | CMP420 | PTY → MDZ | May 6, 17:30 UTC | May 7, 14:35 UTC | 21h 5m |
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-9803CMP page for operator, model, and routing details .