sensors Mode-S transponder
0C21B8
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9810CMP · BOEING 737 MAX 8
- Hex
- 0C21B8
- Octal
- 03020670
- Decimal
- 795,064
- Country
- SR
- Tail
- HP-9810CMP
- Type
- B38M
- Flights observed
- 211
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21B8 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 | - | 16 | 2026-07-02 |
| CMP734 | - | 16 | 2026-07-11 |
| CMP253 | Copa Airlines | 14 | 2026-05-29 |
| CMP456 | Copa Airlines | 13 | 2026-05-28 |
| CMP476 | - | 9 | 2026-07-13 |
| CMP752 | Copa Airlines | 8 | 2026-06-06 |
| CMP205 | Copa Airlines | 8 | 2026-06-06 |
| CMP821 | - | 7 | 2026-06-19 |
| CMP753 | Copa Airlines | 6 | 2026-05-30 |
| CMP423 | Copa Airlines | 6 | 2026-06-07 |
| CMP477 | Copa Airlines | 5 | 2026-05-28 |
| CMP478 | - | 4 | 2026-06-30 |
| CMP228 | Copa Airlines | 4 | 2026-06-21 |
| CMP721 | Copa Airlines | 3 | 2026-05-25 |
| CMP496 | Copa Airlines | 3 | 2026-05-26 |
| CMP333 | Copa Airlines | 3 | 2026-05-17 |
| CMP252 | Copa Airlines | 3 | 2026-04-20 |
| CMP195 | Copa Airlines | 3 | 2026-05-11 |
| CMP194 | Copa Airlines | 3 | 2026-05-10 |
| CMP149 | Copa Airlines | 3 | 2026-05-06 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CMP476 | COR → DEN | Jul 13, 10:05 UTC | Jul 14, 00:00 UTC | 13h 55m |
| 2026-07-12 | CMP354 | - | Jul 12, 22:40 UTC | Jul 13, 08:45 UTC | 10h 5m |
| 2026-07-11 | CMP734 | - | Jul 11, 21:35 UTC | Jul 12, 14:35 UTC | 17h 0m |
| 2026-07-11 | CMP734 | - | Jul 11, 16:55 UTC | Jul 12, 14:35 UTC | 21h 40m |
| 2026-07-11 | CMP484 | YUL → PTY | Jul 11, 14:05 UTC | Jul 12, 13:35 UTC | 23h 30m |
| 2026-07-11 | CMP484 | YUL → PTY | Jul 11, 12:40 UTC | Jul 12, 10:15 UTC | 21h 35m |
| 2026-07-11 | CMP422 | - | Jul 11, 00:05 UTC | Jul 11, 04:30 UTC | 4h 25m |
| 2026-07-08 | CMP833 | JFK → PTY | Jul 8, 20:05 UTC | Jul 9, 15:40 UTC | 19h 35m |
| 2026-07-08 | CMP832 | PTY → CUR | Jul 8, 18:05 UTC | Jul 8, 18:20 UTC | 15m |
| 2026-07-06 | CMP734 | - | Jul 6, 22:05 UTC | Jul 7, 16:20 UTC | 18h 15m |
| 2026-07-06 | CMP734 | - | Jul 6, 21:45 UTC | Jul 7, 16:20 UTC | 18h 35m |
| 2026-07-05 | CMP897 | - | Jul 5, 08:20 UTC | Jul 5, 12:55 UTC | 4h 35m |
| 2026-07-05 | CMP899 | - | Jul 5, 02:05 UTC | Jul 5, 06:20 UTC | 4h 15m |
| 2026-07-03 | CMP732 | - | Jul 3, 00:10 UTC | Jul 3, 08:45 UTC | 8h 35m |
| 2026-07-02 | CMP820 | - | Jul 2, 06:15 UTC | Jul 3, 00:45 UTC | 18h 30m |
| 2026-07-02 | CMP820 | - | Jul 2, 02:05 UTC | Jul 3, 00:45 UTC | 22h 40m |
| 2026-07-01 | CMP820 | - | Jul 1, 16:25 UTC | Jul 2, 09:35 UTC | 17h 10m |
| 2026-07-01 | CMP445 | MCO → CUN | Jul 1, 05:35 UTC | Jul 1, 14:50 UTC | 9h 15m |
| 2026-06-30 | CMP478 | - | Jun 30, 12:10 UTC | Jun 30, 20:30 UTC | 8h 20m |
| 2026-06-29 | CMP103 | - | Jun 29, 17:55 UTC | Jun 30, 02:40 UTC | 8h 45m |
| 2026-06-29 | CMP288 | PTY → CUR | Jun 29, 15:54 UTC | Jun 29, 16:10 UTC | 15m |
| 2026-06-28 | CMP347 | - | Jun 28, 21:55 UTC | Jun 29, 11:50 UTC | 13h 55m |
| 2026-06-28 | CMP324 | - | Jun 28, 18:34 UTC | Jun 28, 20:14 UTC | 1h 40m |
| 2026-06-26 | CMP613 | - | Jun 26, 03:50 UTC | Jun 26, 08:05 UTC | 4h 15m |
| 2026-06-26 | CMP609 | - | Jun 26, 00:50 UTC | Jun 26, 02:05 UTC | 1h 15m |
| 2026-06-25 | CMP609 | - | Jun 25, 04:29 UTC | Jun 25, 21:55 UTC | 17h 25m |
| 2026-06-22 | CMP857 | - | Jun 22, 08:35 UTC | Jun 22, 11:04 UTC | 2h 30m |
| 2026-06-21 | CMP229 | ORD → MEX | Jun 21, 20:45 UTC | Jun 22, 06:49 UTC | 10h 5m |
| 2026-06-21 | CMP228 | PTY → ORD | Jun 21, 14:15 UTC | Jun 21, 18:50 UTC | 4h 35m |
| 2026-06-20 | CMP228 | PTY → ORD | Jun 20, 18:04 UTC | Jun 21, 18:00 UTC | 23h 55m |
| 2026-06-20 | CMP228 | PTY → ORD | Jun 20, 17:54 UTC | Jun 21, 15:59 UTC | 22h 5m |
| 2026-06-20 | CMP820 | - | Jun 20, 05:24 UTC | Jun 20, 22:05 UTC | 16h 40m |
| 2026-06-20 | CMP820 | - | Jun 20, 02:04 UTC | Jun 20, 22:05 UTC | 20h 0m |
| 2026-06-19 | CMP820 | - | Jun 19, 22:45 UTC | Jun 20, 17:59 UTC | 19h 15m |
| 2026-06-19 | CMP820 | - | Jun 19, 10:04 UTC | Jun 20, 09:39 UTC | 23h 35m |
| 2026-06-19 | CMP821 | - | Jun 19, 08:29 UTC | Jun 20, 05:59 UTC | 21h 30m |
| 2026-06-18 | CMP229 | - | Jun 18, 20:50 UTC | Jun 19, 06:44 UTC | 9h 54m |
| 2026-06-18 | CMP228 | PTY → ORD | Jun 18, 08:25 UTC | Jun 18, 18:20 UTC | 9h 55m |
| 2026-06-17 | CMP858 | MCO → MEX | Jun 17, 17:55 UTC | Jun 18, 06:35 UTC | 12h 40m |
| 2026-06-16 | CMP821 | - | Jun 16, 21:20 UTC | Jun 17, 15:50 UTC | 18h 30m |
| 2026-06-16 | CMP821 | - | Jun 16, 17:10 UTC | Jun 17, 15:50 UTC | 22h 41m |
| 2026-06-16 | CMP463 | PTY → COR | Jun 16, 15:09 UTC | Jun 16, 15:20 UTC | 10m |
| 2026-06-15 | CMP244 | BOG → PTY | Jun 15, 19:50 UTC | Jun 15, 20:00 UTC | 10m |
| 2026-06-15 | CMP415 | PTY → BOG | Jun 15, 18:15 UTC | Jun 15, 18:25 UTC | 10m |
| 2026-06-14 | CMP295 | - | Jun 14, 19:55 UTC | Jun 14, 23:05 UTC | 3h 10m |
| 2026-06-14 | CMP201 | DEN → YYZ | Jun 14, 04:50 UTC | Jun 14, 18:10 UTC | 13h 20m |
| 2026-06-13 | CMP476 | - | Jun 13, 11:30 UTC | Jun 13, 23:45 UTC | 12h 15m |
| 2026-06-13 | CMP396 | SCL → PTY | Jun 13, 08:25 UTC | Jun 13, 08:35 UTC | 10m |
| 2026-06-13 | CMP474 | PTY → SCL | Jun 13, 03:00 UTC | Jun 13, 03:50 UTC | 50m |
| 2026-06-11 | CMP445 | MCO → PTY | Jun 11, 22:15 UTC | Jun 11, 23:00 UTC | 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-9810CMP page for operator, model, and routing details .