sensors Mode-S transponder
0C21A8
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9806CMP · BOEING 737 MAX 8
- Hex
- 0C21A8
- Octal
- 03020650
- Decimal
- 795,048
- Country
- SR
- Tail
- HP-9806CMP
- Type
- B38M
- Flights observed
- 245
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- Jul 26, 22:00 UTC
Current position
Country allocation
The ICAO 24-bit address 0C21A8 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 | - | 20 | 2026-07-05 |
| CMP734 | - | 17 | 2026-07-16 |
| CMP821 | - | 16 | 2026-07-19 |
| CMP420 | Copa Airlines | 9 | 2026-05-31 |
| CMP477 | Copa Airlines | 6 | 2026-07-23 |
| CMP476 | Copa Airlines | 6 | 2026-07-26 |
| CMP424 | - | 6 | 2026-07-13 |
| CMP423 | - | 6 | 2026-07-12 |
| CMP421 | - | 6 | 2026-07-14 |
| CMP456 | - | 5 | 2026-07-03 |
| CMP253 | - | 5 | 2026-07-04 |
| CMP127 | Copa Airlines | 5 | 2026-07-25 |
| CMP470 | - | 4 | 2026-07-04 |
| CMP228 | - | 4 | 2026-06-28 |
| CMP194 | Copa Airlines | 4 | 2026-07-23 |
| CMP122 | Copa Airlines | 4 | 2026-05-12 |
| CMP862 | Copa Airlines | 3 | 2026-05-11 |
| CMP496 | - | 3 | 2026-06-18 |
| CMP484 | Copa Airlines | 3 | 2026-06-26 |
| CMP471 | Copa Airlines | 3 | 2026-07-05 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | CMP476 | PTY → DEN | Jul 26, 14:25 UTC | Jul 26, 22:00 UTC | 7h 35m |
| 2026-07-25 | CMP127 | PTY → VVI | Jul 25, 18:05 UTC | Jul 26, 13:00 UTC | 18h 56m |
| 2026-07-25 | CMP127 | PTY → VVI | Jul 25, 17:35 UTC | Jul 26, 13:00 UTC | 19h 26m |
| 2026-07-25 | CMP127 | PTY → VVI | Jul 25, 06:35 UTC | Jul 26, 00:45 UTC | 18h 10m |
| 2026-07-25 | CMP127 | PTY → VVI | Jul 25, 05:10 UTC | Jul 26, 00:45 UTC | 19h 35m |
| 2026-07-25 | CMP127 | PTY → VVI | Jul 25, 02:05 UTC | Jul 26, 00:45 UTC | 22h 40m |
| 2026-07-25 | CMP221 | PTY → CCS | Jul 25, 01:25 UTC | Jul 26, 00:00 UTC | 22h 35m |
| 2026-07-24 | CMP445 | MCO → PTY | Jul 24, 22:35 UTC | Jul 25, 19:25 UTC | 20h 50m |
| 2026-07-24 | CMP478 | MEX → MCO | Jul 24, 12:15 UTC | Jul 24, 20:35 UTC | 8h 20m |
| 2026-07-23 | CMP194 | PTY → MEX | Jul 23, 22:40 UTC | Jul 24, 06:10 UTC | 7h 30m |
| 2026-07-23 | CMP477 | DEN → PTY | Jul 23, 05:30 UTC | Jul 23, 14:40 UTC | 9h 10m |
| 2026-07-22 | CMP476 | PTY → DEN | Jul 22, 11:15 UTC | Jul 23, 00:20 UTC | 13h 5m |
| 2026-07-21 | CMP440 | MIA → PTY | Jul 21, 16:35 UTC | Jul 22, 05:20 UTC | 12h 45m |
| 2026-07-20 | CMP467 | RDU → PTY | Jul 20, 21:20 UTC | Jul 21, 05:40 UTC | 8h 19m |
| 2026-07-20 | CMP466 | PTY → RDU | Jul 20, 01:20 UTC | Jul 20, 18:20 UTC | 17h 0m |
| 2026-07-19 | CMP466 | PTY → RDU | Jul 19, 22:30 UTC | Jul 20, 18:20 UTC | 19h 50m |
| 2026-07-19 | CMP821 | - | Jul 19, 21:15 UTC | Jul 20, 18:20 UTC | 21h 5m |
| 2026-07-19 | CMP821 | - | Jul 19, 16:20 UTC | Jul 20, 15:05 UTC | 22h 45m |
| 2026-07-19 | CMP477 | DEN → PTY | Jul 19, 05:10 UTC | Jul 19, 14:40 UTC | 9h 30m |
| 2026-07-18 | CMP476 | PTY → DEN | Jul 18, 18:40 UTC | Jul 18, 23:30 UTC | 4h 50m |
| 2026-07-18 | CMP163 | - | Jul 18, 01:30 UTC | Jul 18, 01:39 UTC | 10m |
| 2026-07-17 | CMP451 | - | Jul 17, 09:45 UTC | Jul 17, 09:55 UTC | 10m |
| 2026-07-17 | CMP450 | PTY → SJU | Jul 17, 02:20 UTC | Jul 17, 02:30 UTC | 10m |
| 2026-07-16 | CMP734 | - | Jul 16, 06:15 UTC | Jul 17, 01:45 UTC | 19h 30m |
| 2026-07-16 | CMP734 | - | Jul 16, 00:50 UTC | Jul 16, 19:50 UTC | 19h 0m |
| 2026-07-15 | CMP734 | - | Jul 15, 21:30 UTC | Jul 16, 19:50 UTC | 22h 20m |
| 2026-07-15 | CMP734 | - | Jul 15, 18:05 UTC | Jul 16, 16:44 UTC | 22h 40m |
| 2026-07-15 | CMP262 | - | Jul 15, 16:35 UTC | Jul 16, 16:00 UTC | 23h 25m |
| 2026-07-15 | CMP293 | PTY → CUN | Jul 15, 08:00 UTC | Jul 15, 14:35 UTC | 6h 35m |
| 2026-07-15 | CMP314 | - | Jul 15, 04:45 UTC | Jul 15, 05:10 UTC | 25m |
| 2026-07-14 | CMP421 | - | Jul 14, 08:05 UTC | Jul 15, 05:10 UTC | 21h 4m |
| 2026-07-14 | CMP421 | - | Jul 14, 07:40 UTC | Jul 15, 05:10 UTC | 21h 29m |
| 2026-07-13 | CMP421 | - | Jul 13, 15:05 UTC | Jul 14, 08:35 UTC | 17h 30m |
| 2026-07-13 | CMP421 | - | Jul 13, 10:30 UTC | Jul 14, 08:35 UTC | 22h 5m |
| 2026-07-13 | CMP424 | - | Jul 13, 09:10 UTC | Jul 14, 08:00 UTC | 22h 50m |
| 2026-07-13 | CMP424 | - | Jul 13, 06:35 UTC | Jul 13, 23:50 UTC | 17h 15m |
| 2026-07-13 | CMP424 | - | Jul 13, 04:40 UTC | Jul 13, 05:05 UTC | 25m |
| 2026-07-12 | CMP423 | - | Jul 12, 09:40 UTC | Jul 13, 03:10 UTC | 17h 30m |
| 2026-07-12 | CMP423 | - | Jul 12, 05:40 UTC | Jul 13, 03:10 UTC | 21h 30m |
| 2026-07-12 | CMP423 | - | Jul 12, 00:05 UTC | Jul 12, 23:20 UTC | 23h 15m |
| 2026-07-11 | CMP423 | - | Jul 11, 23:55 UTC | Jul 12, 22:00 UTC | 22h 5m |
| 2026-07-11 | CMP465 | SJO → SJO | Jul 11, 11:45 UTC | Jul 11, 22:45 UTC | 11h 0m |
| 2026-07-10 | CMP705 | - | Jul 10, 21:15 UTC | Jul 11, 04:30 UTC | 7h 15m |
| 2026-07-10 | CMP704 | PTY → BOS | Jul 10, 04:30 UTC | Jul 10, 18:15 UTC | 13h 45m |
| 2026-07-09 | CMP882 | - | Jul 9, 17:15 UTC | Jul 10, 02:50 UTC | 9h 35m |
| 2026-07-09 | CMP463 | PTY → COR | Jul 9, 15:10 UTC | Jul 9, 15:20 UTC | 10m |
| 2026-07-08 | CMP821 | - | Jul 8, 17:15 UTC | Jul 9, 09:25 UTC | 16h 10m |
| 2026-07-08 | CMP821 | - | Jul 8, 09:00 UTC | Jul 9, 06:05 UTC | 21h 5m |
| 2026-07-08 | CMP821 | - | Jul 8, 06:10 UTC | Jul 9, 06:00 UTC | 23h 50m |
| 2026-07-08 | CMP734 | - | Jul 8, 00:55 UTC | Jul 8, 17:20 UTC | 16h 25m |
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-9806CMP page for operator, model, and routing details .