sensors Mode-S transponder
0C21A6
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9804CMP · BOEING 737 MAX 8
- Hex
- 0C21A6
- Octal
- 03020646
- Decimal
- 795,046
- Country
- SR
- Tail
- HP-9804CMP
- Type
- B38M
- Flights observed
- 110
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 11h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21A6 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 |
|---|---|---|---|
| CMP880 | Copa Airlines | 7 | 2026-04-23 |
| CMP456 | Copa Airlines | 7 | 2026-05-07 |
| CMP479 | Copa Airlines | 6 | 2026-05-20 |
| CMP891 | Copa Airlines | 5 | 2026-04-23 |
| CMP734 | Copa Airlines | 4 | 2026-04-26 |
| CMP446 | Copa Airlines | 4 | 2026-05-20 |
| CMP253 | Copa Airlines | 4 | 2026-05-08 |
| CMP149 | Copa Airlines | 4 | 2026-05-22 |
| CMP138 | Copa Airlines | 4 | 2026-05-21 |
| CMP884 | Copa Airlines | 3 | 2026-05-10 |
| CMP801 | Copa Airlines | 3 | 2026-04-27 |
| CMP746 | Copa Airlines | 3 | 2026-05-28 |
| CMP228 | Copa Airlines | 3 | 2026-05-23 |
| CMP867 | Copa Airlines | 2 | 2026-05-05 |
| CMP858 | Copa Airlines | 2 | 2026-05-09 |
| CMP857 | Copa Airlines | 2 | 2026-05-09 |
| CMP476 | Copa Airlines | 2 | 2026-05-15 |
| CMP451 | Copa Airlines | 2 | 2026-05-11 |
| CMP450 | Copa Airlines | 2 | 2026-05-11 |
| CMP380 | - | 2 | 2026-04-17 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CMP638 | PTY → MGA | May 29, 04:00 UTC | May 29, 14:35 UTC | 10h 35m |
| 2026-05-28 | CMP746 | TUC → PTY | May 28, 07:35 UTC | May 29, 04:15 UTC | 20h 40m |
| 2026-05-27 | CMP400 | LIM → PTY | May 27, 16:55 UTC | May 28, 08:20 UTC | 15h 25m |
| 2026-05-26 | CMP195 | MEX → PTY | May 26, 12:10 UTC | May 27, 03:50 UTC | 15h 40m |
| 2026-05-25 | CMP194 | PTY → MEX | May 25, 23:10 UTC | May 26, 06:10 UTC | 7h 0m |
| 2026-05-25 | CMP392 | SJO → PTY | May 25, 12:45 UTC | May 25, 19:44 UTC | 6h 59m |
| 2026-05-25 | CMP391 | PTY → SJO | May 25, 02:40 UTC | May 25, 03:10 UTC | 30m |
| 2026-05-24 | CMP861 | BOG → PTY | May 24, 14:50 UTC | May 24, 15:00 UTC | 10m |
| 2026-05-24 | CMP860 | PTY → BOG | May 24, 05:00 UTC | May 24, 05:10 UTC | 10m |
| 2026-05-23 | CMP229 | ORD → PTY | May 23, 20:40 UTC | May 24, 00:50 UTC | 4h 10m |
| 2026-05-23 | CMP228 | PTY → ORD | May 23, 14:05 UTC | May 23, 18:25 UTC | 4h 21m |
| 2026-05-22 | CMP228 | PTY → ORD | May 22, 21:35 UTC | May 23, 18:25 UTC | 20h 50m |
| 2026-05-22 | CMP228 | PTY → ORD | May 22, 19:40 UTC | May 23, 18:25 UTC | 22h 45m |
| 2026-05-22 | CMP149 | MEX → PTY | May 22, 08:00 UTC | May 22, 17:25 UTC | 9h 25m |
| 2026-05-21 | CMP138 | PTY → MEX | May 21, 15:00 UTC | May 22, 01:05 UTC | 10h 5m |
| 2026-05-20 | CMP479 | MCO → PTY | May 20, 19:35 UTC | May 21, 17:30 UTC | 21h 55m |
| 2026-05-20 | CMP479 | MCO → PTY | May 20, 18:50 UTC | May 21, 17:30 UTC | 22h 40m |
| 2026-05-20 | CMP446 | PTY → MCO | May 20, 14:00 UTC | May 20, 16:30 UTC | 2h 30m |
| 2026-05-19 | CMP710 | MGA → PTY | May 19, 09:20 UTC | May 19, 09:30 UTC | 10m |
| 2026-05-18 | CMP347 | CUN → PTY | May 18, 21:55 UTC | May 19, 03:35 UTC | 5h 40m |
| 2026-05-18 | CMP324 | PTY → CUN | May 18, 09:55 UTC | May 18, 20:15 UTC | 10h 19m |
| 2026-05-18 | CMP291 | PTY → ASU | May 18, 04:40 UTC | May 18, 07:50 UTC | 3h 10m |
| 2026-05-17 | CMP291 | PTY → ASU | May 17, 10:20 UTC | May 18, 07:50 UTC | 21h 30m |
| 2026-05-16 | CMP361 | GUA → PTY | May 16, 22:45 UTC | May 17, 10:20 UTC | 11h 35m |
| 2026-05-16 | CMP477 | DEN → PTY | May 16, 05:10 UTC | May 16, 14:35 UTC | 9h 26m |
| 2026-05-15 | CMP476 | PTY → DEN | May 15, 05:35 UTC | May 15, 23:55 UTC | 18h 19m |
| 2026-05-14 | CMP476 | PTY → DEN | May 14, 22:00 UTC | May 15, 21:30 UTC | 23h 29m |
| 2026-05-14 | CMP746 | TUC → PTY | May 14, 14:01 UTC | May 15, 09:55 UTC | 19h 55m |
| 2026-05-14 | CMP746 | TUC → PTY | May 14, 01:35 UTC | May 14, 22:50 UTC | 21h 15m |
| 2026-05-14 | CMP174 | SCL → PTY | May 14, 01:00 UTC | May 14, 22:50 UTC | 21h 50m |
| 2026-05-12 | CMP474 | PTY → SCL | May 12, 19:55 UTC | May 13, 06:50 UTC | 10h 55m |
| 2026-05-12 | CMP149 | MEX → PTY | May 12, 08:00 UTC | May 12, 17:55 UTC | 9h 55m |
| 2026-05-11 | CMP451 | SJU → PTY | May 11, 09:40 UTC | May 11, 09:55 UTC | 15m |
| 2026-05-11 | CMP450 | PTY → SJU | May 11, 02:00 UTC | May 11, 02:20 UTC | 20m |
| 2026-05-10 | CMP884 | SAL → PTY | May 10, 15:09 UTC | May 11, 01:05 UTC | 9h 55m |
| 2026-05-10 | CMP884 | SAL → PTY | May 10, 01:34 UTC | May 11, 01:05 UTC | 23h 30m |
| 2026-05-10 | CMP884 | SAL → PTY | May 10, 01:24 UTC | May 10, 15:35 UTC | 14h 10m |
| 2026-05-09 | CMP479 | MCO → PTY | May 9, 19:35 UTC | May 10, 15:35 UTC | 20h 0m |
| 2026-05-09 | CMP479 | MCO → PTY | May 9, 19:00 UTC | May 10, 15:35 UTC | 20h 35m |
| 2026-05-09 | CMP857 | MEX → PTY | May 9, 08:20 UTC | May 9, 16:35 UTC | 8h 15m |
| 2026-05-09 | CMP858 | PTY → MEX | May 9, 05:50 UTC | May 9, 06:40 UTC | 50m |
| 2026-05-09 | CMP858 | PTY → MEX | May 9, 04:15 UTC | May 9, 05:15 UTC | 1h 0m |
| 2026-05-08 | CMP253 | LAS → PTY | May 8, 07:39 UTC | May 8, 12:49 UTC | 5h 10m |
| 2026-05-07 | CMP456 | PTY → LAS | May 7, 17:40 UTC | May 8, 05:05 UTC | 11h 25m |
| 2026-05-07 | CMP456 | PTY → LAS | May 7, 05:35 UTC | May 8, 05:05 UTC | 23h 30m |
| 2026-05-07 | CMP456 | PTY → LAS | May 7, 05:00 UTC | May 8, 02:39 UTC | 21h 40m |
| 2026-05-06 | CMP220 | VVI → PTY | May 6, 22:30 UTC | May 7, 18:35 UTC | 20h 5m |
| 2026-05-06 | CMP863 | - | May 6, 06:45 UTC | May 6, 20:30 UTC | 13h 44m |
| 2026-05-05 | CMP866 | PTY → MEX | May 5, 19:50 UTC | May 6, 03:50 UTC | 8h 0m |
| 2026-05-05 | CMP867 | PTY → MCO | May 5, 15:05 UTC | May 5, 17:25 UTC | 2h 20m |
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-9804CMP page for operator, model, and routing details .