sensors Mode-S transponder
0C21A5
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9803CMP · BOEING 737 MAX 8
- Hex
- 0C21A5
- Octal
- 03020645
- Decimal
- 795,045
- Country
- SR
- Tail
- HP-9803CMP
- Type
- B38M
- Flights observed
- 203
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 10h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21A5 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 |
|---|---|---|---|
| CMP821 | - | 11 | 2026-07-10 |
| CMP734 | - | 10 | 2026-07-10 |
| CMP420 | Copa Airlines | 10 | 2026-06-14 |
| CMP421 | - | 9 | 2026-07-04 |
| CMP424 | - | 7 | 2026-07-01 |
| CMP423 | Copa Airlines | 6 | 2026-05-29 |
| CMP287 | - | 6 | 2026-07-03 |
| CMP122 | Copa Airlines | 5 | 2026-07-09 |
| CMP820 | - | 4 | 2026-07-11 |
| CMP476 | - | 4 | 2026-06-27 |
| CMP361 | - | 4 | 2026-07-06 |
| CMP868 | Copa Airlines | 3 | 2026-04-26 |
| CMP496 | Copa Airlines | 3 | 2026-06-05 |
| CMP317 | - | 3 | 2026-06-28 |
| CMP312 | Copa Airlines | 3 | 2026-06-19 |
| CMP285 | Copa Airlines | 3 | 2026-06-03 |
| CMP262 | Copa Airlines | 3 | 2026-04-25 |
| CMP205 | - | 3 | 2026-06-12 |
| CMP175 | - | 3 | 2026-07-06 |
| CMP149 | Copa Airlines | 3 | 2026-05-26 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CMP326 | - | Jul 13, 19:30 UTC | Jul 13, 20:00 UTC | 30m |
| 2026-07-12 | CMP113 | PTY → CUN | Jul 12, 23:20 UTC | Jul 13, 18:00 UTC | 18h 40m |
| 2026-07-12 | CMP709 | - | Jul 12, 21:25 UTC | Jul 13, 18:00 UTC | 20h 35m |
| 2026-07-12 | CMP708 | - | Jul 12, 17:01 UTC | Jul 12, 19:30 UTC | 2h 30m |
| 2026-07-11 | CMP760 | - | Jul 11, 19:50 UTC | Jul 11, 20:30 UTC | 40m |
| 2026-07-11 | CMP820 | - | Jul 11, 01:15 UTC | Jul 11, 17:55 UTC | 16h 40m |
| 2026-07-10 | CMP821 | - | Jul 10, 22:30 UTC | Jul 11, 17:55 UTC | 19h 25m |
| 2026-07-10 | CMP821 | - | Jul 10, 16:55 UTC | Jul 11, 09:20 UTC | 16h 25m |
| 2026-07-10 | CMP821 | - | Jul 10, 09:55 UTC | Jul 11, 09:15 UTC | 23h 20m |
| 2026-07-10 | CMP821 | - | Jul 10, 08:50 UTC | Jul 11, 06:05 UTC | 21h 15m |
| 2026-07-10 | CMP734 | - | Jul 10, 06:05 UTC | Jul 11, 01:15 UTC | 19h 10m |
| 2026-07-10 | CMP734 | - | Jul 10, 00:50 UTC | Jul 10, 23:15 UTC | 22h 25m |
| 2026-07-09 | CMP734 | - | Jul 9, 21:40 UTC | Jul 10, 16:55 UTC | 19h 15m |
| 2026-07-09 | CMP734 | - | Jul 9, 17:20 UTC | Jul 10, 16:55 UTC | 23h 35m |
| 2026-07-09 | CMP123 | - | Jul 9, 17:00 UTC | Jul 10, 10:10 UTC | 17h 10m |
| 2026-07-09 | CMP122 | PTY → CUN | Jul 9, 13:30 UTC | Jul 9, 15:10 UTC | 1h 40m |
| 2026-07-08 | CMP479 | - | Jul 8, 19:05 UTC | Jul 8, 21:10 UTC | 2h 5m |
| 2026-07-08 | CMP446 | - | Jul 8, 14:10 UTC | Jul 8, 16:25 UTC | 2h 15m |
| 2026-07-07 | CMP195 | - | Jul 7, 12:10 UTC | Jul 7, 14:35 UTC | 2h 25m |
| 2026-07-06 | CMP194 | GUA → MEX | Jul 6, 22:40 UTC | Jul 7, 06:15 UTC | 7h 35m |
| 2026-07-06 | CMP361 | GUA → GUA | Jul 6, 16:40 UTC | Jul 6, 21:30 UTC | 4h 50m |
| 2026-07-06 | CMP186 | MTY → GUA | Jul 6, 07:00 UTC | Jul 6, 14:35 UTC | 7h 35m |
| 2026-07-06 | CMP175 | - | Jul 6, 01:40 UTC | Jul 6, 04:45 UTC | 3h 5m |
| 2026-07-05 | CMP175 | - | Jul 5, 08:10 UTC | Jul 6, 04:45 UTC | 20h 35m |
| 2026-07-04 | CMP421 | - | Jul 4, 17:50 UTC | Jul 5, 08:45 UTC | 14h 55m |
| 2026-07-03 | CMP287 | - | Jul 3, 20:25 UTC | Jul 4, 16:10 UTC | 19h 45m |
| 2026-07-03 | CMP287 | - | Jul 3, 17:25 UTC | Jul 4, 16:10 UTC | 22h 45m |
| 2026-07-03 | CMP287 | - | Jul 3, 00:15 UTC | Jul 3, 20:50 UTC | 20h 35m |
| 2026-07-02 | CMP445 | - | Jul 2, 22:20 UTC | Jul 3, 20:50 UTC | 22h 30m |
| 2026-07-02 | CMP478 | - | Jul 2, 18:00 UTC | Jul 2, 20:25 UTC | 2h 25m |
| 2026-07-01 | CMP424 | - | Jul 1, 05:00 UTC | Jul 1, 15:10 UTC | 10h 10m |
| 2026-06-30 | CMP236 | ORD → PTY | Jun 30, 13:10 UTC | Jul 1, 02:55 UTC | 13h 45m |
| 2026-06-30 | CMP844 | PTY → ORD | Jun 30, 04:10 UTC | Jun 30, 08:20 UTC | 4h 10m |
| 2026-06-29 | CMP753 | - | Jun 29, 05:45 UTC | Jun 30, 04:25 UTC | 22h 41m |
| 2026-06-28 | CMP317 | - | Jun 28, 16:05 UTC | Jun 29, 06:09 UTC | 14h 5m |
| 2026-06-28 | CMP477 | DEN → CUN | Jun 28, 05:04 UTC | Jun 28, 14:39 UTC | 9h 35m |
| 2026-06-27 | CMP476 | - | Jun 27, 09:55 UTC | Jun 27, 23:39 UTC | 13h 45m |
| 2026-06-26 | CMP891 | - | Jun 26, 21:45 UTC | Jun 27, 08:10 UTC | 10h 25m |
| 2026-06-26 | CMP253 | LAS → ATL | Jun 26, 07:55 UTC | Jun 26, 19:39 UTC | 11h 45m |
| 2026-06-25 | CMP456 | - | Jun 25, 15:59 UTC | Jun 26, 04:55 UTC | 12h 55m |
| 2026-06-24 | CMP435 | MCO → PTY | Jun 24, 12:14 UTC | Jun 24, 14:29 UTC | 2h 15m |
| 2026-06-23 | CMP434 | - | Jun 23, 15:19 UTC | Jun 24, 02:09 UTC | 10h 50m |
| 2026-06-23 | CMP884 | SAL → PTY | Jun 23, 01:25 UTC | Jun 24, 00:05 UTC | 22h 40m |
| 2026-06-22 | CMP433 | MIA → PTY | Jun 22, 12:34 UTC | Jun 23, 01:35 UTC | 13h 0m |
| 2026-06-21 | CMP775 | PTY → GDL | Jun 21, 07:40 UTC | Jun 22, 02:19 UTC | 18h 40m |
| 2026-06-20 | CMP138 | - | Jun 20, 17:54 UTC | Jun 21, 00:34 UTC | 6h 40m |
| 2026-06-20 | CMP122 | PTY → CUN | Jun 20, 15:04 UTC | Jun 20, 15:14 UTC | 10m |
| 2026-06-20 | CMP807 | - | Jun 20, 06:19 UTC | Jun 20, 14:09 UTC | 7h 50m |
| 2026-06-19 | CMP312 | BOS → PTY | Jun 19, 13:04 UTC | Jun 20, 01:29 UTC | 12h 25m |
| 2026-06-18 | CMP366 | - | Jun 18, 18:10 UTC | Jun 19, 03:05 UTC | 8h 54m |
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-9803CMP page for operator, model, and routing details .