sensors Mode-S transponder
0C21A3
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9801CMP · BOEING 737 MAX 8
- Hex
- 0C21A3
- Octal
- 03020643
- Decimal
- 795,043
- Country
- SR
- Tail
- HP-9801CMP
- Type
- B38M
- Flights observed
- 121
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21A3 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 |
|---|---|---|---|
| CMP752 | Copa Airlines | 8 | 2026-05-20 |
| CMP761 | Copa Airlines | 5 | 2026-05-19 |
| CMP380 | Copa Airlines | 5 | 2026-05-28 |
| CMP149 | Copa Airlines | 5 | 2026-05-27 |
| CMP477 | Copa Airlines | 4 | 2026-05-03 |
| CMP421 | Copa Airlines | 4 | 2026-05-25 |
| CMP361 | Copa Airlines | 4 | 2026-05-29 |
| CMP316 | Copa Airlines | 4 | 2026-05-22 |
| CMP138 | Copa Airlines | 4 | 2026-05-26 |
| CMP858 | Copa Airlines | 3 | 2026-05-17 |
| CMP476 | Copa Airlines | 3 | 2026-05-02 |
| CMP456 | Copa Airlines | 3 | 2026-05-14 |
| CMP451 | Copa Airlines | 3 | 2026-05-19 |
| CMP450 | Copa Airlines | 3 | 2026-05-19 |
| CMP424 | Copa Airlines | 3 | 2026-04-17 |
| CMP394 | Copa Airlines | 3 | 2026-05-21 |
| CMP496 | Copa Airlines | 2 | 2026-05-05 |
| CMP479 | Copa Airlines | 2 | 2026-05-18 |
| CMP478 | Copa Airlines | 2 | 2026-04-19 |
| CMP470 | Copa Airlines | 2 | 2026-05-09 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CMP361 | GUA → PTY | May 29, 22:50 UTC | May 29, 23:50 UTC | 1h 0m |
| 2026-05-29 | CMP361 | GUA → PTY | May 29, 16:50 UTC | May 29, 21:15 UTC | 4h 25m |
| 2026-05-28 | CMP380 | GUA → MGA | May 28, 20:50 UTC | May 29, 14:50 UTC | 18h 0m |
| 2026-05-28 | CMP380 | GUA → MGA | May 28, 16:50 UTC | May 29, 14:50 UTC | 22h 0m |
| 2026-05-28 | CMP243 | PTY → BOG | May 28, 14:15 UTC | May 28, 14:35 UTC | 20m |
| 2026-05-28 | CMP245 | HAV → PTY | May 28, 05:50 UTC | May 28, 10:15 UTC | 4h 25m |
| 2026-05-27 | CMP149 | MEX → PTY | May 27, 08:50 UTC | May 28, 06:05 UTC | 21h 15m |
| 2026-05-27 | CMP149 | MEX → PTY | May 27, 08:20 UTC | May 28, 06:05 UTC | 21h 45m |
| 2026-05-26 | CMP138 | PTY → MEX | May 26, 16:40 UTC | May 27, 00:44 UTC | 8h 5m |
| 2026-05-25 | CMP489 | PTY → LIM | May 25, 08:50 UTC | May 26, 03:30 UTC | 18h 39m |
| 2026-05-25 | CMP421 | MDZ → PTY | May 25, 08:20 UTC | May 26, 03:30 UTC | 19h 9m |
| 2026-05-24 | CMP421 | MDZ → PTY | May 24, 18:25 UTC | May 25, 09:05 UTC | 14h 40m |
| 2026-05-24 | CMP421 | MDZ → PTY | May 24, 13:35 UTC | May 25, 09:05 UTC | 19h 30m |
| 2026-05-24 | CMP149 | MEX → PTY | May 24, 08:55 UTC | May 25, 08:45 UTC | 23h 50m |
| 2026-05-24 | CMP149 | MEX → PTY | May 24, 07:35 UTC | May 24, 23:46 UTC | 16h 11m |
| 2026-05-23 | CMP138 | PTY → MEX | May 23, 17:05 UTC | May 24, 00:55 UTC | 7h 51m |
| 2026-05-22 | CMP316 | PTY → CUN | May 22, 23:40 UTC | May 23, 15:25 UTC | 15h 44m |
| 2026-05-22 | CMP316 | PTY → CUN | May 22, 17:20 UTC | May 23, 15:25 UTC | 22h 4m |
| 2026-05-22 | CMP421 | MDZ → PTY | May 22, 15:05 UTC | May 23, 14:45 UTC | 23h 39m |
| 2026-05-21 | CMP394 | TPA → PTY | May 21, 21:35 UTC | May 22, 17:25 UTC | 19h 50m |
| 2026-05-21 | CMP394 | TPA → PTY | May 21, 19:50 UTC | May 22, 17:25 UTC | 21h 35m |
| 2026-05-21 | CMP393 | PTY → TPA | May 21, 01:55 UTC | May 21, 17:25 UTC | 15h 30m |
| 2026-05-20 | CMP752 | PTY → SSA | May 20, 22:00 UTC | May 21, 17:25 UTC | 19h 25m |
| 2026-05-20 | CMP752 | PTY → SSA | May 20, 16:40 UTC | May 21, 10:50 UTC | 18h 10m |
| 2026-05-20 | CMP752 | PTY → SSA | May 20, 14:25 UTC | May 21, 10:50 UTC | 20h 25m |
| 2026-05-19 | CMP760 | LIM → PTY | May 19, 18:55 UTC | May 20, 16:45 UTC | 21h 51m |
| 2026-05-19 | CMP761 | PTY → LIM | May 19, 16:20 UTC | May 19, 16:55 UTC | 35m |
| 2026-05-19 | CMP451 | SJU → PTY | May 19, 09:40 UTC | May 19, 09:50 UTC | 10m |
| 2026-05-19 | CMP450 | PTY → SJU | May 19, 01:55 UTC | May 19, 02:15 UTC | 20m |
| 2026-05-18 | CMP479 | MCO → PTY | May 18, 19:00 UTC | May 18, 21:10 UTC | 2h 10m |
| 2026-05-18 | CMP446 | PTY → MCO | May 18, 08:20 UTC | May 18, 16:35 UTC | 8h 15m |
| 2026-05-17 | CMP858 | PTY → MEX | May 17, 14:01 UTC | May 18, 06:35 UTC | 16h 35m |
| 2026-05-17 | CMP858 | PTY → MEX | May 17, 08:50 UTC | May 18, 06:35 UTC | 21h 45m |
| 2026-05-17 | CMP149 | MEX → PTY | May 17, 07:30 UTC | May 18, 06:35 UTC | 23h 5m |
| 2026-05-16 | CMP138 | PTY → MEX | May 16, 10:20 UTC | May 17, 01:05 UTC | 14h 45m |
| 2026-05-16 | CMP138 | PTY → MEX | May 16, 05:25 UTC | May 17, 01:05 UTC | 19h 40m |
| 2026-05-15 | CMP333 | MIA → PTY | May 15, 23:10 UTC | May 16, 22:45 UTC | 23h 35m |
| 2026-05-15 | CMP333 | MIA → PTY | May 15, 21:30 UTC | May 16, 10:20 UTC | 12h 51m |
| 2026-05-15 | CMP253 | LAS → PTY | May 15, 07:50 UTC | May 15, 18:20 UTC | 10h 29m |
| 2026-05-14 | CMP456 | PTY → LAS | May 14, 15:35 UTC | May 15, 05:15 UTC | 13h 40m |
| 2026-05-14 | CMP456 | PTY → LAS | May 14, 05:30 UTC | May 15, 04:45 UTC | 23h 15m |
| 2026-05-14 | CMP456 | PTY → LAS | May 14, 02:50 UTC | May 15, 02:45 UTC | 23h 55m |
| 2026-05-14 | CMP752 | PTY → SSA | May 14, 00:50 UTC | May 15, 00:45 UTC | 23h 55m |
| 2026-05-13 | CMP752 | PTY → SSA | May 13, 22:50 UTC | May 14, 18:25 UTC | 19h 35m |
| 2026-05-13 | CMP752 | PTY → SSA | May 13, 17:30 UTC | May 14, 15:40 UTC | 22h 10m |
| 2026-05-13 | CMP752 | PTY → SSA | May 13, 15:20 UTC | May 14, 05:55 UTC | 14h 35m |
| 2026-05-12 | CMP195 | MEX → PTY | May 12, 12:40 UTC | May 12, 15:05 UTC | 2h 25m |
| 2026-05-12 | CMP194 | PTY → MEX | May 12, 03:40 UTC | May 12, 06:05 UTC | 2h 25m |
| 2026-05-11 | CMP194 | PTY → MEX | May 11, 08:55 UTC | May 12, 06:05 UTC | 21h 10m |
| 2026-05-11 | CMP186 | MTY → PTY | May 11, 07:05 UTC | May 12, 06:05 UTC | 23h 0m |
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-9801CMP page for operator, model, and routing details .