sensors Mode-S transponder
0C21B8
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9810CMP · BOEING 737 MAX 8
- Hex
- 0C21B8
- Octal
- 03020670
- Decimal
- 795,064
- Country
- SR
- Tail
- HP-9810CMP
- Type
- B38M
- Flights observed
- 239
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- Jul 26, 21:45 UTC
Last known position
Country allocation
The ICAO 24-bit address 0C21B8 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 |
|---|---|---|---|
| CMP734 | Copa Airlines | 18 | 2026-07-24 |
| CMP820 | - | 16 | 2026-07-02 |
| CMP253 | Copa Airlines | 14 | 2026-05-29 |
| CMP456 | Copa Airlines | 13 | 2026-05-28 |
| CMP205 | - | 11 | 2026-07-16 |
| CMP476 | - | 9 | 2026-07-13 |
| CMP752 | Copa Airlines | 8 | 2026-06-06 |
| CMP821 | - | 7 | 2026-06-19 |
| CMP423 | - | 7 | 2026-07-14 |
| CMP753 | Copa Airlines | 6 | 2026-05-30 |
| CMP477 | - | 6 | 2026-07-14 |
| CMP478 | - | 4 | 2026-06-30 |
| CMP228 | Copa Airlines | 4 | 2026-06-21 |
| CMP204 | - | 4 | 2026-07-16 |
| CMP195 | - | 4 | 2026-07-17 |
| CMP149 | - | 4 | 2026-07-20 |
| CMP721 | Copa Airlines | 3 | 2026-05-25 |
| CMP496 | Copa Airlines | 3 | 2026-05-26 |
| CMP451 | - | 3 | 2026-07-19 |
| CMP450 | Copa Airlines | 3 | 2026-07-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | CMP361 | GUA → PTY | Jul 25, 22:40 UTC | Jul 26, 21:45 UTC | 23h 6m |
| 2026-07-24 | CMP734 | CNF → PTY | Jul 24, 22:05 UTC | Jul 25, 14:45 UTC | 16h 40m |
| 2026-07-24 | CMP734 | CNF → PTY | Jul 24, 18:05 UTC | Jul 25, 14:45 UTC | 20h 40m |
| 2026-07-24 | CMP349 | AUA → PTY | Jul 24, 17:30 UTC | Jul 25, 14:45 UTC | 21h 15m |
| 2026-07-24 | CMP348 | PTY → AUA | Jul 24, 09:30 UTC | Jul 24, 16:00 UTC | 6h 30m |
| 2026-07-23 | CMP465 | - | Jul 23, 12:05 UTC | Jul 24, 00:50 UTC | 12h 45m |
| 2026-07-22 | CMP266 | FLL → PTY | Jul 22, 22:20 UTC | Jul 23, 03:50 UTC | 5h 30m |
| 2026-07-22 | CMP265 | PTY → FLL | Jul 22, 12:50 UTC | Jul 22, 20:05 UTC | 7h 15m |
| 2026-07-22 | CMP441 | PTY → MIA | Jul 22, 00:40 UTC | Jul 22, 02:35 UTC | 1h 55m |
| 2026-07-21 | CMP405 | - | Jul 21, 14:30 UTC | Jul 21, 18:40 UTC | 4h 10m |
| 2026-07-20 | CMP126 | BOG → SJO | Jul 20, 19:05 UTC | Jul 21, 13:15 UTC | 18h 9m |
| 2026-07-20 | CMP149 | MEX → BOG | Jul 20, 07:35 UTC | Jul 20, 14:20 UTC | 6h 45m |
| 2026-07-19 | CMP138 | PTY → MEX | Jul 19, 11:00 UTC | Jul 20, 02:15 UTC | 15h 15m |
| 2026-07-19 | CMP451 | - | Jul 19, 09:40 UTC | Jul 19, 09:55 UTC | 15m |
| 2026-07-19 | CMP450 | PTY → SJU | Jul 19, 02:00 UTC | Jul 19, 02:15 UTC | 15m |
| 2026-07-18 | CMP180 | GEO → PTY | Jul 18, 10:55 UTC | Jul 19, 00:40 UTC | 13h 45m |
| 2026-07-18 | CMP451 | - | Jul 18, 09:45 UTC | Jul 18, 10:00 UTC | 15m |
| 2026-07-18 | CMP450 | PTY → SJU | Jul 18, 02:05 UTC | Jul 18, 02:19 UTC | 15m |
| 2026-07-17 | CMP195 | - | Jul 17, 12:25 UTC | Jul 18, 00:50 UTC | 12h 25m |
| 2026-07-16 | CMP858 | - | Jul 16, 23:49 UTC | Jul 17, 06:45 UTC | 6h 55m |
| 2026-07-16 | CMP204 | - | Jul 16, 06:05 UTC | Jul 16, 22:19 UTC | 16h 15m |
| 2026-07-16 | CMP204 | - | Jul 16, 02:05 UTC | Jul 16, 22:19 UTC | 20h 15m |
| 2026-07-16 | CMP205 | - | Jul 16, 00:05 UTC | Jul 16, 22:19 UTC | 22h 15m |
| 2026-07-15 | CMP205 | - | Jul 15, 22:25 UTC | Jul 16, 22:00 UTC | 23h 35m |
| 2026-07-15 | CMP205 | - | Jul 15, 18:10 UTC | Jul 16, 16:44 UTC | 22h 35m |
| 2026-07-15 | CMP424 | - | Jul 15, 04:30 UTC | Jul 15, 15:15 UTC | 10h 45m |
| 2026-07-14 | CMP423 | - | Jul 14, 16:25 UTC | Jul 15, 03:10 UTC | 10h 44m |
| 2026-07-14 | CMP477 | DEN → CUN | Jul 14, 05:00 UTC | Jul 14, 14:40 UTC | 9h 40m |
| 2026-07-13 | CMP476 | COR → DEN | Jul 13, 10:05 UTC | Jul 14, 00:00 UTC | 13h 55m |
| 2026-07-12 | CMP354 | - | Jul 12, 22:40 UTC | Jul 13, 08:45 UTC | 10h 5m |
| 2026-07-11 | CMP734 | - | Jul 11, 21:35 UTC | Jul 12, 14:35 UTC | 17h 0m |
| 2026-07-11 | CMP734 | - | Jul 11, 16:55 UTC | Jul 12, 14:35 UTC | 21h 40m |
| 2026-07-11 | CMP484 | YUL → PTY | Jul 11, 14:05 UTC | Jul 12, 13:35 UTC | 23h 30m |
| 2026-07-11 | CMP484 | YUL → PTY | Jul 11, 12:40 UTC | Jul 12, 10:15 UTC | 21h 35m |
| 2026-07-11 | CMP422 | - | Jul 11, 00:05 UTC | Jul 11, 04:30 UTC | 4h 25m |
| 2026-07-08 | CMP833 | JFK → PTY | Jul 8, 20:05 UTC | Jul 9, 15:40 UTC | 19h 35m |
| 2026-07-08 | CMP832 | PTY → CUR | Jul 8, 18:05 UTC | Jul 8, 18:20 UTC | 15m |
| 2026-07-06 | CMP734 | - | Jul 6, 22:05 UTC | Jul 7, 16:20 UTC | 18h 15m |
| 2026-07-06 | CMP734 | - | Jul 6, 21:45 UTC | Jul 7, 16:20 UTC | 18h 35m |
| 2026-07-05 | CMP897 | - | Jul 5, 08:20 UTC | Jul 5, 12:55 UTC | 4h 35m |
| 2026-07-05 | CMP899 | - | Jul 5, 02:05 UTC | Jul 5, 06:20 UTC | 4h 15m |
| 2026-07-03 | CMP732 | - | Jul 3, 00:10 UTC | Jul 3, 08:45 UTC | 8h 35m |
| 2026-07-02 | CMP820 | - | Jul 2, 06:15 UTC | Jul 3, 00:45 UTC | 18h 30m |
| 2026-07-02 | CMP820 | - | Jul 2, 02:05 UTC | Jul 3, 00:45 UTC | 22h 40m |
| 2026-07-01 | CMP820 | - | Jul 1, 16:25 UTC | Jul 2, 09:35 UTC | 17h 10m |
| 2026-07-01 | CMP445 | MCO → CUN | Jul 1, 05:35 UTC | Jul 1, 14:50 UTC | 9h 15m |
| 2026-06-30 | CMP478 | - | Jun 30, 12:10 UTC | Jun 30, 20:30 UTC | 8h 20m |
| 2026-06-29 | CMP103 | - | Jun 29, 17:55 UTC | Jun 30, 02:40 UTC | 8h 45m |
| 2026-06-29 | CMP288 | PTY → CUR | Jun 29, 15:54 UTC | Jun 29, 16:10 UTC | 15m |
| 2026-06-28 | CMP347 | - | Jun 28, 21:55 UTC | Jun 29, 11:50 UTC | 13h 55m |
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-9810CMP page for operator, model, and routing details .