sensors Mode-S transponder
0C21DE
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP9814 · BOEING 737 MAX 8
- Hex
- 0C21DE
- Octal
- 03020736
- Decimal
- 795,102
- Country
- SR
- Tail
- HP9814
- Type
- B38M
- Flights observed
- 96
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21DE 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 |
|---|---|---|---|
| CMP765 | Copa Airlines | 8 | 2026-05-06 |
| CMP476 | Copa Airlines | 7 | 2026-05-29 |
| CMP820 | Copa Airlines | 6 | 2026-05-12 |
| CMP734 | Copa Airlines | 5 | 2026-05-05 |
| CMP477 | Copa Airlines | 4 | 2026-05-30 |
| CMP127 | Copa Airlines | 4 | 2026-04-24 |
| CMP778 | Copa Airlines | 3 | 2026-05-08 |
| CMP871 | Copa Airlines | 2 | 2026-04-22 |
| CMP732 | Copa Airlines | 2 | 2026-04-23 |
| CMP715 | Copa Airlines | 2 | 2026-05-23 |
| CMP478 | Copa Airlines | 2 | 2026-04-16 |
| CMP459 | Copa Airlines | 2 | 2026-05-03 |
| CMP450 | Copa Airlines | 2 | 2026-05-10 |
| CMP445 | Copa Airlines | 2 | 2026-04-17 |
| CMP404 | Copa Airlines | 2 | 2026-04-27 |
| CMP393 | - | 2 | 2026-04-20 |
| CMP361 | Copa Airlines | 2 | 2026-05-18 |
| CMP274 | - | 2 | 2026-05-28 |
| CMP149 | Copa Airlines | 2 | 2026-05-13 |
| CMP138 | Copa Airlines | 2 | 2026-05-12 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | CMP477 | DEN → PTY | May 30, 05:05 UTC | May 30, 09:45 UTC | 4h 40m |
| 2026-05-29 | CMP476 | PTY → DEN | May 29, 15:15 UTC | May 30, 00:05 UTC | 8h 51m |
| 2026-05-29 | CMP476 | PTY → DEN | May 29, 01:35 UTC | May 30, 00:05 UTC | 22h 31m |
| 2026-05-28 | CMP476 | PTY → DEN | May 28, 22:10 UTC | May 29, 21:30 UTC | 23h 21m |
| 2026-05-28 | CMP274 | - | May 28, 14:40 UTC | May 28, 15:00 UTC | 20m |
| 2026-05-25 | CMP326 | CUN → PTY | May 25, 19:25 UTC | May 25, 19:54 UTC | 30m |
| 2026-05-25 | CMP113 | PTY → CUN | May 25, 17:20 UTC | May 25, 18:05 UTC | 45m |
| 2026-05-24 | CMP389 | GUA → PTY | May 24, 13:30 UTC | May 24, 14:30 UTC | 1h 0m |
| 2026-05-23 | CMP716 | AUS → PTY | May 23, 20:45 UTC | May 24, 04:25 UTC | 7h 40m |
| 2026-05-23 | CMP715 | PTY → AUS | May 23, 01:20 UTC | May 23, 18:45 UTC | 17h 25m |
| 2026-05-22 | CMP715 | PTY → AUS | May 22, 21:35 UTC | May 23, 18:45 UTC | 21h 10m |
| 2026-05-22 | CMP892 | PTY → ADZ | May 22, 16:30 UTC | May 22, 16:40 UTC | 10m |
| 2026-05-22 | CMP246 | MIA → PTY | May 22, 10:50 UTC | May 22, 12:40 UTC | 1h 50m |
| 2026-05-21 | CMP240 | PTY → MIA | May 21, 16:35 UTC | May 21, 23:15 UTC | 6h 40m |
| 2026-05-21 | CMP477 | DEN → PTY | May 21, 05:10 UTC | May 21, 14:15 UTC | 9h 5m |
| 2026-05-20 | CMP476 | PTY → DEN | May 20, 07:20 UTC | May 20, 23:40 UTC | 16h 20m |
| 2026-05-19 | CMP476 | PTY → DEN | May 19, 23:55 UTC | May 20, 23:30 UTC | 23h 36m |
| 2026-05-19 | CMP733 | SLA → PTY | May 19, 10:25 UTC | May 20, 08:00 UTC | 21h 36m |
| 2026-05-18 | CMP361 | GUA → PTY | May 18, 22:50 UTC | May 18, 23:55 UTC | 1h 5m |
| 2026-05-18 | CMP361 | GUA → PTY | May 18, 16:35 UTC | May 18, 21:10 UTC | 4h 34m |
| 2026-05-18 | CMP380 | GUA → MGA | May 18, 08:05 UTC | May 18, 14:35 UTC | 6h 30m |
| 2026-05-17 | CMP838 | PTY → LIM | May 17, 22:05 UTC | May 18, 04:25 UTC | 6h 20m |
| 2026-05-17 | CMP274 | PTY → BOG | May 17, 14:35 UTC | May 17, 15:01 UTC | 25m |
| 2026-05-16 | CMP123 | CUN → PTY | May 16, 17:01 UTC | May 16, 18:25 UTC | 1h 25m |
| 2026-05-15 | CMP122 | PTY → CUN | May 15, 22:35 UTC | May 16, 15:20 UTC | 16h 46m |
| 2026-05-15 | CMP265 | PTY → FLL | May 15, 13:25 UTC | May 15, 20:15 UTC | 6h 49m |
| 2026-05-14 | CMP496 | PTY → GUA | May 14, 15:05 UTC | May 15, 04:30 UTC | 13h 25m |
| 2026-05-13 | CMP178 | PUJ → PTY | May 13, 16:20 UTC | May 14, 15:05 UTC | 22h 45m |
| 2026-05-13 | CMP149 | MEX → PTY | May 13, 07:40 UTC | May 13, 16:25 UTC | 8h 45m |
| 2026-05-12 | CMP138 | PTY → MEX | May 12, 05:35 UTC | May 13, 01:05 UTC | 19h 30m |
| 2026-05-12 | CMP820 | POA → PTY | May 12, 05:15 UTC | May 13, 01:05 UTC | 19h 50m |
| 2026-05-11 | CMP820 | POA → PTY | May 11, 22:30 UTC | May 12, 17:30 UTC | 19h 0m |
| 2026-05-11 | CMP820 | POA → PTY | May 11, 16:20 UTC | May 12, 15:01 UTC | 22h 41m |
| 2026-05-11 | CMP820 | POA → PTY | May 11, 14:05 UTC | May 12, 09:25 UTC | 19h 21m |
| 2026-05-11 | CMP820 | POA → PTY | May 11, 09:45 UTC | May 12, 09:25 UTC | 23h 41m |
| 2026-05-11 | CMP149 | MEX → PTY | May 11, 07:40 UTC | May 12, 06:15 UTC | 22h 35m |
| 2026-05-10 | CMP138 | PTY → MEX | May 10, 09:45 UTC | May 11, 00:45 UTC | 15h 0m |
| 2026-05-10 | CMP450 | PTY → SJU | May 10, 02:10 UTC | May 10, 02:24 UTC | 15m |
| 2026-05-09 | CMP316 | PTY → CUN | May 9, 13:45 UTC | May 9, 18:35 UTC | 4h 50m |
| 2026-05-08 | CMP778 | GDL → PTY | May 8, 19:35 UTC | May 9, 18:35 UTC | 23h 0m |
| 2026-05-08 | CMP778 | GDL → PTY | May 8, 19:00 UTC | May 9, 14:20 UTC | 19h 20m |
| 2026-05-08 | CMP778 | GDL → PTY | May 8, 15:40 UTC | May 9, 14:20 UTC | 22h 40m |
| 2026-05-08 | CMP424 | FLN → PTY | May 8, 06:30 UTC | May 8, 15:05 UTC | 8h 35m |
| 2026-05-07 | CMP423 | YUL → PTY | May 7, 16:35 UTC | May 8, 01:09 UTC | 8h 35m |
| 2026-05-06 | CMP765 | PTY → CNF | May 6, 21:55 UTC | May 7, 14:40 UTC | 16h 46m |
| 2026-05-06 | CMP765 | PTY → CNF | May 6, 16:35 UTC | May 7, 14:40 UTC | 22h 5m |
| 2026-05-06 | CMP765 | PTY → CNF | May 6, 13:55 UTC | May 7, 05:45 UTC | 15h 49m |
| 2026-05-06 | CMP765 | PTY → CNF | May 6, 07:50 UTC | May 7, 05:45 UTC | 21h 54m |
| 2026-05-06 | CMP765 | PTY → CNF | May 6, 05:35 UTC | May 7, 05:30 UTC | 23h 54m |
| 2026-05-06 | CMP765 | PTY → CNF | May 6, 05:05 UTC | May 7, 01:50 UTC | 20h 44m |
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 HP9814 page for operator, model, and routing details .