sensors Mode-S transponder
0C21B6
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9808CMP · BOEING 737 MAX 8
- Hex
- 0C21B6
- Octal
- 03020666
- Decimal
- 795,062
- Country
- SR
- Tail
- HP-9808CMP
- Type
- B38M
- Flights observed
- 243
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- Jul 26, 21:30 UTC
Last known position
Country allocation
The ICAO 24-bit address 0C21B6 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 |
|---|---|---|---|
| CMP820 | Copa Airlines | 17 | 2026-06-07 |
| CMP734 | - | 10 | 2026-07-16 |
| CMP366 | - | 10 | 2026-07-10 |
| CMP753 | Copa Airlines | 7 | 2026-06-09 |
| CMP423 | Copa Airlines | 7 | 2026-07-24 |
| CMP765 | - | 6 | 2026-07-16 |
| CMP752 | - | 6 | 2026-07-12 |
| CMP733 | Copa Airlines | 6 | 2026-06-09 |
| CMP312 | - | 6 | 2026-07-11 |
| CMP866 | Copa Airlines | 5 | 2026-05-23 |
| CMP424 | Copa Airlines | 5 | 2026-07-25 |
| CMP195 | Copa Airlines | 5 | 2026-06-18 |
| CMP194 | - | 5 | 2026-06-17 |
| CMP868 | - | 4 | 2026-07-14 |
| CMP821 | Copa Airlines | 4 | 2026-06-04 |
| CMP760 | - | 4 | 2026-07-13 |
| CMP477 | Copa Airlines | 4 | 2026-05-07 |
| CMP456 | - | 4 | 2026-06-13 |
| CMP450 | - | 4 | 2026-07-14 |
| CMP420 | Copa Airlines | 4 | 2026-05-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CMP416 | BOG → PTY | Jul 26, 16:55 UTC | Jul 26, 21:30 UTC | 4h 35m |
| 2026-07-26 | CMP403 | IAD → PTY | Jul 26, 06:40 UTC | Jul 26, 14:20 UTC | 7h 40m |
| 2026-07-25 | CMP448 | PTY → SDQ | Jul 25, 18:40 UTC | Jul 26, 04:15 UTC | 9h 35m |
| 2026-07-25 | CMP424 | FLN → PTY | Jul 25, 05:15 UTC | Jul 25, 16:30 UTC | 11h 15m |
| 2026-07-24 | CMP423 | YUL → PTY | Jul 24, 10:20 UTC | Jul 25, 04:00 UTC | 17h 40m |
| 2026-07-24 | CMP423 | YUL → PTY | Jul 24, 06:55 UTC | Jul 25, 04:00 UTC | 21h 5m |
| 2026-07-24 | CMP423 | YUL → PTY | Jul 24, 03:35 UTC | Jul 25, 03:30 UTC | 23h 55m |
| 2026-07-24 | CMP423 | YUL → PTY | Jul 24, 03:10 UTC | Jul 25, 01:30 UTC | 22h 20m |
| 2026-07-23 | CMP204 | BSB → PTY | Jul 23, 23:55 UTC | Jul 24, 23:30 UTC | 23h 35m |
| 2026-07-23 | CMP204 | BSB → PTY | Jul 23, 18:45 UTC | Jul 24, 17:30 UTC | 22h 45m |
| 2026-07-23 | CMP204 | BSB → PTY | Jul 23, 15:00 UTC | Jul 24, 13:30 UTC | 22h 30m |
| 2026-07-23 | CMP204 | BSB → PTY | Jul 23, 11:35 UTC | Jul 24, 10:55 UTC | 23h 20m |
| 2026-07-23 | CMP205 | PTY → BSB | Jul 23, 11:25 UTC | Jul 24, 07:35 UTC | 20h 10m |
| 2026-07-23 | CMP205 | PTY → BSB | Jul 23, 04:35 UTC | Jul 24, 03:30 UTC | 22h 55m |
| 2026-07-22 | CMP771 | CUR → PTY | Jul 22, 23:55 UTC | Jul 23, 19:15 UTC | 19h 20m |
| 2026-07-22 | CMP855 | - | Jul 22, 04:00 UTC | Jul 22, 22:15 UTC | 18h 15m |
| 2026-07-21 | CMP884 | - | Jul 21, 01:30 UTC | Jul 21, 18:50 UTC | 17h 20m |
| 2026-07-20 | CMP764 | - | Jul 20, 19:10 UTC | Jul 20, 19:25 UTC | 15m |
| 2026-07-20 | CMP757 | - | Jul 20, 15:55 UTC | Jul 20, 16:05 UTC | 10m |
| 2026-07-20 | CMP756 | - | Jul 20, 14:15 UTC | Jul 20, 14:25 UTC | 10m |
| 2026-07-20 | CMP424 | FLN → PTY | Jul 20, 04:40 UTC | Jul 20, 10:30 UTC | 5h 50m |
| 2026-07-19 | CMP423 | - | Jul 19, 07:35 UTC | Jul 20, 03:05 UTC | 19h 30m |
| 2026-07-18 | CMP803 | JFK → PTY | Jul 18, 14:10 UTC | Jul 19, 01:10 UTC | 11h 0m |
| 2026-07-17 | CMP808 | GUA → JFK | Jul 17, 22:29 UTC | Jul 18, 07:45 UTC | 9h 16m |
| 2026-07-17 | CMP361 | GUA → GUA | Jul 17, 16:49 UTC | Jul 17, 21:05 UTC | 4h 15m |
| 2026-07-16 | CMP734 | - | Jul 16, 21:35 UTC | Jul 17, 14:50 UTC | 17h 15m |
| 2026-07-16 | CMP734 | - | Jul 16, 16:15 UTC | Jul 17, 14:50 UTC | 22h 35m |
| 2026-07-16 | CMP734 | - | Jul 16, 13:54 UTC | Jul 17, 10:25 UTC | 20h 30m |
| 2026-07-16 | CMP765 | - | Jul 16, 09:35 UTC | Jul 17, 09:04 UTC | 23h 30m |
| 2026-07-16 | CMP149 | - | Jul 16, 07:30 UTC | Jul 17, 01:15 UTC | 17h 45m |
| 2026-07-15 | CMP138 | - | Jul 15, 09:25 UTC | Jul 16, 00:55 UTC | 15h 30m |
| 2026-07-14 | CMP868 | - | Jul 14, 20:45 UTC | Jul 15, 04:20 UTC | 7h 34m |
| 2026-07-14 | CMP867 | PTY → MCO | Jul 14, 15:55 UTC | Jul 14, 18:15 UTC | 2h 20m |
| 2026-07-14 | CMP450 | - | Jul 14, 02:00 UTC | Jul 14, 02:10 UTC | 10m |
| 2026-07-13 | CMP760 | - | Jul 13, 18:50 UTC | Jul 13, 19:35 UTC | 45m |
| 2026-07-12 | CMP752 | - | Jul 12, 22:00 UTC | Jul 13, 16:55 UTC | 18h 55m |
| 2026-07-12 | CMP752 | - | Jul 12, 17:55 UTC | Jul 13, 16:55 UTC | 23h 0m |
| 2026-07-12 | CMP752 | - | Jul 12, 17:01 UTC | Jul 13, 11:10 UTC | 18h 10m |
| 2026-07-11 | CMP122 | PTY → CUN | Jul 11, 23:15 UTC | Jul 12, 15:50 UTC | 16h 35m |
| 2026-07-11 | CMP122 | PTY → CUN | Jul 11, 15:35 UTC | Jul 12, 15:30 UTC | 23h 55m |
| 2026-07-11 | CMP312 | - | Jul 11, 13:35 UTC | Jul 12, 09:00 UTC | 19h 25m |
| 2026-07-11 | CMP312 | - | Jul 11, 13:05 UTC | Jul 12, 09:00 UTC | 19h 55m |
| 2026-07-10 | CMP366 | - | Jul 10, 10:00 UTC | Jul 11, 02:40 UTC | 16h 40m |
| 2026-07-10 | CMP366 | - | Jul 10, 05:45 UTC | Jul 11, 02:40 UTC | 20h 55m |
| 2026-07-09 | CMP705 | - | Jul 9, 23:35 UTC | Jul 10, 22:35 UTC | 23h 0m |
| 2026-07-09 | CMP705 | - | Jul 9, 21:05 UTC | Jul 10, 10:20 UTC | 13h 15m |
| 2026-07-09 | CMP704 | PTY → BOS | Jul 9, 04:15 UTC | Jul 9, 18:30 UTC | 14h 15m |
| 2026-07-07 | CMP433 | - | Jul 7, 12:50 UTC | Jul 7, 18:15 UTC | 5h 25m |
| 2026-07-06 | CMP441 | - | Jul 6, 18:50 UTC | Jul 7, 02:25 UTC | 7h 35m |
| 2026-07-06 | CMP424 | - | Jul 6, 04:20 UTC | Jul 6, 16:55 UTC | 12h 35m |
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-9808CMP page for operator, model, and routing details .