sensors Mode-S transponder
0C21A7
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9805CMP · BOEING 737 MAX 8
- Hex
- 0C21A7
- Octal
- 03020647
- Decimal
- 795,047
- Country
- SR
- Tail
- HP-9805CMP
- Type
- B38M
- Flights observed
- 102
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21A7 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 | 9 | 2026-05-23 |
| CMP723 | Copa Airlines | 7 | 2026-05-19 |
| CMP476 | Copa Airlines | 6 | 2026-05-14 |
| CMP477 | Copa Airlines | 5 | 2026-05-15 |
| CMP113 | Copa Airlines | 5 | 2026-05-26 |
| CMP858 | Copa Airlines | 4 | 2026-05-07 |
| CMP857 | Copa Airlines | 4 | 2026-05-08 |
| CMP765 | Copa Airlines | 4 | 2026-05-12 |
| CMP424 | Copa Airlines | 4 | 2026-05-29 |
| CMP423 | Copa Airlines | 3 | 2026-05-28 |
| CMP326 | Copa Airlines | 3 | 2026-05-26 |
| CMP262 | Copa Airlines | 3 | 2026-04-28 |
| CMP867 | - | 2 | 2026-04-21 |
| CMP863 | - | 2 | 2026-05-20 |
| CMP862 | Copa Airlines | 2 | 2026-05-21 |
| CMP860 | Copa Airlines | 2 | 2026-05-17 |
| CMP708 | Copa Airlines | 2 | 2026-05-10 |
| CMP396 | Copa Airlines | 2 | 2026-05-27 |
| CMP246 | Copa Airlines | 2 | 2026-04-13 |
| CMP239 | - | 2 | 2026-04-14 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CMP394 | TPA → PTY | May 29, 19:45 UTC | May 29, 21:55 UTC | 2h 10m |
| 2026-05-29 | CMP424 | FLN → PTY | May 29, 06:35 UTC | May 29, 17:20 UTC | 10h 45m |
| 2026-05-29 | CMP424 | FLN → PTY | May 29, 04:40 UTC | May 29, 05:05 UTC | 25m |
| 2026-05-28 | CMP423 | YUL → PTY | May 28, 16:40 UTC | May 29, 03:00 UTC | 10h 20m |
| 2026-05-28 | CMP315 | POS → PTY | May 28, 08:05 UTC | May 28, 14:40 UTC | 6h 35m |
| 2026-05-27 | CMP396 | SCL → PTY | May 27, 11:35 UTC | May 28, 05:20 UTC | 17h 45m |
| 2026-05-27 | CMP396 | SCL → PTY | May 27, 08:20 UTC | May 27, 08:30 UTC | 10m |
| 2026-05-26 | CMP326 | CUN → PTY | May 26, 19:40 UTC | May 27, 03:50 UTC | 8h 10m |
| 2026-05-26 | CMP113 | PTY → CUN | May 26, 16:10 UTC | May 26, 18:05 UTC | 1h 55m |
| 2026-05-25 | CMP113 | PTY → CUN | May 25, 20:19 UTC | May 26, 18:05 UTC | 21h 45m |
| 2026-05-25 | CMP451 | SJU → PTY | May 25, 09:50 UTC | May 25, 20:24 UTC | 10h 35m |
| 2026-05-25 | CMP450 | PTY → SJU | May 25, 01:55 UTC | May 25, 02:10 UTC | 15m |
| 2026-05-23 | CMP734 | CNF → PTY | May 23, 16:50 UTC | May 24, 09:00 UTC | 16h 10m |
| 2026-05-23 | CMP424 | FLN → PTY | May 23, 04:35 UTC | May 23, 14:25 UTC | 9h 50m |
| 2026-05-22 | CMP423 | YUL → PTY | May 22, 21:30 UTC | May 23, 03:00 UTC | 5h 29m |
| 2026-05-22 | CMP423 | YUL → PTY | May 22, 01:50 UTC | May 23, 01:45 UTC | 23h 55m |
| 2026-05-22 | CMP459 | MCO → PTY | May 22, 01:05 UTC | May 22, 23:15 UTC | 22h 10m |
| 2026-05-21 | CMP862 | PTY → MCO | May 21, 00:00 UTC | May 21, 17:45 UTC | 17h 45m |
| 2026-05-20 | CMP862 | PTY → MCO | May 20, 20:50 UTC | May 21, 17:45 UTC | 20h 55m |
| 2026-05-20 | CMP734 | CNF → PTY | May 20, 16:40 UTC | May 21, 15:45 UTC | 23h 5m |
| 2026-05-20 | CMP734 | CNF → PTY | May 20, 14:15 UTC | May 21, 08:45 UTC | 18h 30m |
| 2026-05-20 | CMP863 | - | May 20, 07:55 UTC | May 21, 05:45 UTC | 21h 50m |
| 2026-05-20 | CMP863 | - | May 20, 06:45 UTC | May 21, 05:45 UTC | 23h 0m |
| 2026-05-20 | CMP866 | PTY → MEX | May 20, 03:10 UTC | May 20, 04:00 UTC | 50m |
| 2026-05-19 | CMP723 | GDL → PTY | May 19, 08:15 UTC | May 20, 02:35 UTC | 18h 20m |
| 2026-05-19 | CMP723 | GDL → PTY | May 19, 06:55 UTC | May 20, 02:35 UTC | 19h 40m |
| 2026-05-19 | CMP723 | GDL → PTY | May 19, 03:50 UTC | May 20, 02:35 UTC | 22h 45m |
| 2026-05-19 | CMP723 | GDL → PTY | May 19, 02:00 UTC | May 20, 01:35 UTC | 23h 35m |
| 2026-05-18 | CMP723 | GDL → PTY | May 18, 14:55 UTC | May 19, 09:15 UTC | 18h 19m |
| 2026-05-17 | CMP860 | PTY → BOG | May 17, 19:40 UTC | May 18, 05:10 UTC | 9h 30m |
| 2026-05-17 | CMP415 | PTY → BOG | May 17, 18:01 UTC | May 17, 18:10 UTC | 10m |
| 2026-05-17 | CMP6140 | - | May 17, 08:55 UTC | May 17, 09:15 UTC | 20m |
| 2026-05-15 | CMP445 | MCO → PTY | May 15, 22:20 UTC | May 16, 04:50 UTC | 6h 30m |
| 2026-05-15 | CMP477 | DEN → PTY | May 15, 05:00 UTC | May 15, 20:10 UTC | 15h 9m |
| 2026-05-14 | CMP476 | PTY → DEN | May 14, 18:50 UTC | May 14, 23:45 UTC | 4h 55m |
| 2026-05-13 | CMP476 | PTY → DEN | May 13, 22:45 UTC | May 14, 21:45 UTC | 23h 0m |
| 2026-05-13 | CMP361 | GUA → PTY | May 13, 16:50 UTC | May 13, 21:10 UTC | 4h 20m |
| 2026-05-12 | CMP765 | PTY → CNF | May 12, 21:55 UTC | May 13, 14:40 UTC | 16h 45m |
| 2026-05-12 | CMP765 | PTY → CNF | May 12, 16:25 UTC | May 13, 14:40 UTC | 22h 15m |
| 2026-05-12 | CMP765 | PTY → CNF | May 12, 14:05 UTC | May 13, 13:45 UTC | 23h 40m |
| 2026-05-12 | CMP765 | PTY → CNF | May 12, 04:55 UTC | May 13, 00:40 UTC | 19h 45m |
| 2026-05-11 | CMP734 | CNF → PTY | May 11, 21:50 UTC | May 12, 16:30 UTC | 18h 40m |
| 2026-05-11 | CMP734 | CNF → PTY | May 11, 15:50 UTC | May 12, 14:10 UTC | 22h 21m |
| 2026-05-11 | CMP357 | IAD → PTY | May 11, 13:50 UTC | May 12, 05:40 UTC | 15h 51m |
| 2026-05-10 | CMP404 | PTY → IAD | May 10, 20:35 UTC | May 11, 08:00 UTC | 11h 26m |
| 2026-05-10 | CMP708 | PTY → BWI | May 10, 15:19 UTC | May 10, 18:45 UTC | 3h 25m |
| 2026-05-08 | CMP821 | PTY → POA | May 8, 22:55 UTC | May 9, 09:35 UTC | 10h 40m |
| 2026-05-08 | CMP857 | MEX → PTY | May 8, 08:29 UTC | May 8, 15:20 UTC | 6h 50m |
| 2026-05-07 | CMP858 | PTY → MEX | May 7, 22:54 UTC | May 8, 06:35 UTC | 7h 40m |
| 2026-05-07 | CMP723 | GDL → PTY | May 7, 02:00 UTC | May 7, 20:45 UTC | 18h 45m |
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-9805CMP page for operator, model, and routing details .