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
- 232
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- Jul 26, 19:50 UTC
Last known 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 | 16 | 2026-07-23 |
| CMP420 | Copa Airlines | 12 | 2026-07-20 |
| CMP421 | - | 11 | 2026-07-16 |
| CMP734 | - | 10 | 2026-07-10 |
| CMP424 | - | 7 | 2026-07-01 |
| CMP423 | Copa Airlines | 6 | 2026-05-29 |
| CMP287 | - | 6 | 2026-07-03 |
| CMP476 | Copa Airlines | 5 | 2026-07-19 |
| CMP361 | Copa Airlines | 5 | 2026-07-21 |
| CMP122 | Copa Airlines | 5 | 2026-07-09 |
| CMP868 | Copa Airlines | 4 | 2026-07-24 |
| CMP820 | - | 4 | 2026-07-11 |
| CMP709 | - | 4 | 2026-07-15 |
| CMP317 | - | 4 | 2026-07-20 |
| CMP496 | Copa Airlines | 3 | 2026-06-05 |
| CMP477 | Copa Airlines | 3 | 2026-07-20 |
| CMP456 | Copa Airlines | 3 | 2026-07-22 |
| CMP312 | Copa Airlines | 3 | 2026-06-19 |
| CMP285 | Copa Airlines | 3 | 2026-06-03 |
| CMP262 | Copa Airlines | 3 | 2026-04-25 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CMP471 | YYZ → PTY | Jul 26, 12:30 UTC | Jul 26, 19:50 UTC | 7h 20m |
| 2026-07-25 | CMP470 | PTY → YYZ | Jul 25, 20:00 UTC | Jul 26, 04:45 UTC | 8h 45m |
| 2026-07-25 | CMP832 | - | Jul 25, 17:05 UTC | Jul 25, 18:15 UTC | 1h 10m |
| 2026-07-24 | CMP868 | MCO → PTY | Jul 24, 19:45 UTC | Jul 25, 01:20 UTC | 5h 35m |
| 2026-07-23 | CMP821 | PTY → POA | Jul 23, 22:10 UTC | Jul 24, 17:35 UTC | 19h 25m |
| 2026-07-23 | CMP253 | LAS → PTY | Jul 23, 07:45 UTC | Jul 23, 13:10 UTC | 5h 25m |
| 2026-07-22 | CMP456 | PTY → LAS | Jul 22, 20:40 UTC | Jul 23, 05:20 UTC | 8h 40m |
| 2026-07-22 | CMP195 | - | Jul 22, 12:25 UTC | Jul 22, 18:45 UTC | 6h 20m |
| 2026-07-21 | CMP361 | GUA → PTY | Jul 21, 22:35 UTC | Jul 22, 05:25 UTC | 6h 50m |
| 2026-07-20 | CMP420 | PTY → MDZ | Jul 20, 23:30 UTC | Jul 21, 14:50 UTC | 15h 19m |
| 2026-07-20 | CMP420 | PTY → MDZ | Jul 20, 17:20 UTC | Jul 21, 14:50 UTC | 21h 29m |
| 2026-07-20 | CMP317 | CUN → GUA | Jul 20, 16:10 UTC | Jul 21, 14:50 UTC | 22h 40m |
| 2026-07-20 | CMP477 | DEN → PTY | Jul 20, 05:10 UTC | Jul 20, 14:40 UTC | 9h 30m |
| 2026-07-19 | CMP476 | PTY → DEN | Jul 19, 15:05 UTC | Jul 19, 23:25 UTC | 8h 20m |
| 2026-07-19 | CMP860 | PTY → BOG | Jul 19, 00:05 UTC | Jul 19, 06:20 UTC | 6h 15m |
| 2026-07-18 | CMP123 | CUN → SJO | Jul 18, 17:35 UTC | Jul 18, 22:50 UTC | 5h 15m |
| 2026-07-17 | CMP821 | - | Jul 17, 21:20 UTC | Jul 18, 15:40 UTC | 18h 21m |
| 2026-07-17 | CMP821 | - | Jul 17, 09:20 UTC | Jul 18, 09:15 UTC | 23h 56m |
| 2026-07-17 | CMP821 | - | Jul 17, 08:45 UTC | Jul 18, 06:35 UTC | 21h 51m |
| 2026-07-16 | CMP821 | - | Jul 16, 23:20 UTC | Jul 17, 23:14 UTC | 23h 55m |
| 2026-07-16 | CMP421 | - | Jul 16, 15:19 UTC | Jul 17, 09:40 UTC | 18h 20m |
| 2026-07-16 | CMP421 | - | Jul 16, 15:14 UTC | Jul 17, 09:40 UTC | 18h 25m |
| 2026-07-15 | CMP709 | - | Jul 15, 23:20 UTC | Jul 16, 23:15 UTC | 23h 55m |
| 2026-07-15 | CMP709 | - | Jul 15, 21:25 UTC | Jul 16, 17:35 UTC | 20h 10m |
| 2026-07-15 | CMP708 | SJO → BWI | Jul 15, 12:00 UTC | Jul 15, 18:55 UTC | 6h 55m |
| 2026-07-15 | CMP162 | - | Jul 15, 03:10 UTC | Jul 15, 03:35 UTC | 25m |
| 2026-07-14 | CMP363 | - | Jul 14, 21:40 UTC | Jul 14, 21:50 UTC | 10m |
| 2026-07-14 | CMP193 | - | Jul 14, 18:25 UTC | Jul 14, 18:40 UTC | 15m |
| 2026-07-14 | CMP192 | - | Jul 14, 17:00 UTC | Jul 14, 17:25 UTC | 25m |
| 2026-07-13 | CMP326 | CUN → SJO | Jul 13, 19:30 UTC | Jul 14, 17:25 UTC | 21h 55m |
| 2026-07-12 | CMP113 | PTY → CUN | Jul 12, 23:20 UTC | Jul 13, 18:00 UTC | 18h 40m |
| 2026-07-12 | CMP709 | - | Jul 12, 21:25 UTC | Jul 13, 18:00 UTC | 20h 35m |
| 2026-07-12 | CMP708 | - | Jul 12, 17:01 UTC | Jul 12, 19:30 UTC | 2h 30m |
| 2026-07-11 | CMP760 | - | Jul 11, 19:50 UTC | Jul 11, 20:30 UTC | 40m |
| 2026-07-11 | CMP820 | - | Jul 11, 01:15 UTC | Jul 11, 17:55 UTC | 16h 40m |
| 2026-07-10 | CMP821 | - | Jul 10, 22:30 UTC | Jul 11, 17:55 UTC | 19h 25m |
| 2026-07-10 | CMP821 | - | Jul 10, 16:55 UTC | Jul 11, 09:20 UTC | 16h 25m |
| 2026-07-10 | CMP821 | - | Jul 10, 09:55 UTC | Jul 11, 09:15 UTC | 23h 20m |
| 2026-07-10 | CMP821 | - | Jul 10, 08:50 UTC | Jul 11, 06:05 UTC | 21h 15m |
| 2026-07-10 | CMP734 | - | Jul 10, 06:05 UTC | Jul 11, 01:15 UTC | 19h 10m |
| 2026-07-10 | CMP734 | - | Jul 10, 00:50 UTC | Jul 10, 23:15 UTC | 22h 25m |
| 2026-07-09 | CMP734 | - | Jul 9, 21:40 UTC | Jul 10, 16:55 UTC | 19h 15m |
| 2026-07-09 | CMP734 | - | Jul 9, 17:20 UTC | Jul 10, 16:55 UTC | 23h 35m |
| 2026-07-09 | CMP123 | - | Jul 9, 17:00 UTC | Jul 10, 10:10 UTC | 17h 10m |
| 2026-07-09 | CMP122 | PTY → CUN | Jul 9, 13:30 UTC | Jul 9, 15:10 UTC | 1h 40m |
| 2026-07-08 | CMP479 | - | Jul 8, 19:05 UTC | Jul 8, 21:10 UTC | 2h 5m |
| 2026-07-08 | CMP446 | - | Jul 8, 14:10 UTC | Jul 8, 16:25 UTC | 2h 15m |
| 2026-07-07 | CMP195 | - | Jul 7, 12:10 UTC | Jul 7, 14:35 UTC | 2h 25m |
| 2026-07-06 | CMP194 | GUA → MEX | Jul 6, 22:40 UTC | Jul 7, 06:15 UTC | 7h 35m |
| 2026-07-06 | CMP361 | GUA → GUA | Jul 6, 16:40 UTC | Jul 6, 21:30 UTC | 4h 50m |
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 .