sensors Mode-S transponder
0C21E0
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9816CMP · BOEING 737 MAX 8
- Hex
- 0C21E0
- Octal
- 03020740
- Decimal
- 795,104
- Country
- SR
- Tail
- HP-9816CMP
- Type
- B38M
- Flights observed
- 122
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 1h ago
Current position
Country allocation
The ICAO 24-bit address 0C21E0 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 | 12 | 2026-05-29 |
| CMP765 | Copa Airlines | 6 | 2026-05-29 |
| CMP821 | Copa Airlines | 5 | 2026-05-03 |
| CMP324 | Copa Airlines | 5 | 2026-05-27 |
| CMP138 | Copa Airlines | 5 | 2026-05-20 |
| CMP704 | Copa Airlines | 4 | 2026-05-05 |
| CMP477 | Copa Airlines | 4 | 2026-05-12 |
| CMP424 | Copa Airlines | 4 | 2026-05-25 |
| CMP423 | Copa Airlines | 4 | 2026-05-24 |
| CMP422 | Copa Airlines | 4 | 2026-05-22 |
| CMP194 | Copa Airlines | 4 | 2026-05-17 |
| CMP705 | Copa Airlines | 3 | 2026-05-06 |
| CMP496 | Copa Airlines | 3 | 2026-04-24 |
| CMP229 | Copa Airlines | 3 | 2026-05-29 |
| CMP195 | Copa Airlines | 3 | 2026-05-18 |
| CMP149 | Copa Airlines | 3 | 2026-05-21 |
| CMP858 | Copa Airlines | 2 | 2026-05-27 |
| CMP788 | Copa Airlines | 2 | 2026-04-27 |
| CMP476 | Copa Airlines | 2 | 2026-05-11 |
| CMP357 | Copa Airlines | 2 | 2026-04-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CMP734 | CNF → PTY | May 29, 09:50 UTC | May 30, 08:00 UTC | 22h 10m |
| 2026-05-29 | CMP765 | PTY → CNF | May 29, 05:35 UTC | May 30, 00:10 UTC | 18h 35m |
| 2026-05-29 | CMP229 | ORD → PTY | May 29, 00:25 UTC | May 30, 00:00 UTC | 23h 35m |
| 2026-05-28 | CMP229 | ORD → PTY | May 28, 22:05 UTC | May 29, 21:55 UTC | 23h 50m |
| 2026-05-28 | CMP229 | ORD → PTY | May 28, 20:45 UTC | May 29, 16:25 UTC | 19h 40m |
| 2026-05-28 | CMP228 | PTY → ORD | May 28, 08:25 UTC | May 28, 18:50 UTC | 10h 25m |
| 2026-05-27 | CMP858 | PTY → MEX | May 27, 23:30 UTC | May 28, 07:00 UTC | 7h 30m |
| 2026-05-27 | CMP324 | PTY → CUN | May 27, 20:00 UTC | May 27, 20:15 UTC | 15m |
| 2026-05-27 | CMP324 | PTY → CUN | May 27, 18:25 UTC | May 27, 19:05 UTC | 40m |
| 2026-05-26 | CMP324 | PTY → CUN | May 26, 22:50 UTC | May 27, 19:05 UTC | 20h 16m |
| 2026-05-26 | CMP333 | MIA → PTY | May 26, 21:20 UTC | May 27, 19:05 UTC | 21h 46m |
| 2026-05-26 | CMP334 | PTY → MIA | May 26, 10:50 UTC | May 26, 18:10 UTC | 7h 20m |
| 2026-05-26 | CMP451 | SJU → PTY | May 26, 09:45 UTC | May 26, 09:59 UTC | 15m |
| 2026-05-26 | CMP450 | PTY → SJU | May 26, 02:10 UTC | May 26, 02:19 UTC | 10m |
| 2026-05-25 | CMP760 | LIM → PTY | May 25, 19:10 UTC | May 26, 01:20 UTC | 6h 10m |
| 2026-05-25 | CMP424 | FLN → PTY | May 25, 05:45 UTC | May 25, 16:55 UTC | 11h 10m |
| 2026-05-25 | CMP424 | FLN → PTY | May 25, 04:30 UTC | May 25, 04:55 UTC | 25m |
| 2026-05-24 | CMP423 | YUL → PTY | May 24, 17:00 UTC | May 25, 02:50 UTC | 9h 50m |
| 2026-05-23 | CMP484 | YUL → PTY | May 23, 12:35 UTC | May 23, 17:00 UTC | 4h 25m |
| 2026-05-22 | CMP422 | PTY → YUL | May 22, 23:55 UTC | May 23, 04:25 UTC | 4h 30m |
| 2026-05-22 | CMP422 | PTY → YUL | May 22, 08:35 UTC | May 23, 04:25 UTC | 19h 49m |
| 2026-05-22 | CMP422 | PTY → YUL | May 22, 07:45 UTC | May 23, 04:25 UTC | 20h 39m |
| 2026-05-22 | CMP422 | PTY → YUL | May 22, 05:10 UTC | May 23, 04:00 UTC | 22h 49m |
| 2026-05-22 | CMP734 | CNF → PTY | May 22, 00:05 UTC | May 23, 00:00 UTC | 23h 55m |
| 2026-05-21 | CMP734 | CNF → PTY | May 21, 16:20 UTC | May 22, 08:50 UTC | 16h 30m |
| 2026-05-21 | CMP734 | CNF → PTY | May 21, 13:50 UTC | May 22, 08:50 UTC | 19h 0m |
| 2026-05-21 | CMP734 | CNF → PTY | May 21, 10:05 UTC | May 22, 08:50 UTC | 22h 45m |
| 2026-05-21 | CMP149 | MEX → PTY | May 21, 08:05 UTC | May 22, 07:45 UTC | 23h 40m |
| 2026-05-21 | CMP149 | MEX → PTY | May 21, 07:40 UTC | May 22, 05:50 UTC | 22h 10m |
| 2026-05-20 | CMP138 | PTY → MEX | May 20, 09:50 UTC | May 21, 01:05 UTC | 15h 15m |
| 2026-05-20 | CMP138 | PTY → MEX | May 20, 04:05 UTC | May 21, 01:05 UTC | 21h 1m |
| 2026-05-20 | CMP138 | PTY → MEX | May 20, 03:40 UTC | May 21, 01:05 UTC | 21h 26m |
| 2026-05-19 | CMP326 | CUN → PTY | May 19, 19:25 UTC | May 20, 10:30 UTC | 15h 6m |
| 2026-05-19 | CMP113 | PTY → CUN | May 19, 16:00 UTC | May 19, 17:40 UTC | 1h 40m |
| 2026-05-18 | CMP195 | MEX → PTY | May 18, 12:20 UTC | May 18, 14:40 UTC | 2h 20m |
| 2026-05-17 | CMP194 | PTY → MEX | May 17, 23:25 UTC | May 18, 06:01 UTC | 6h 35m |
| 2026-05-17 | CMP361 | GUA → PTY | May 17, 22:40 UTC | May 17, 23:05 UTC | 25m |
| 2026-05-17 | CMP863 | - | May 17, 06:40 UTC | May 17, 14:40 UTC | 8h 0m |
| 2026-05-16 | CMP195 | MEX → PTY | May 16, 12:01 UTC | May 17, 03:55 UTC | 15h 54m |
| 2026-05-15 | CMP194 | PTY → MEX | May 15, 16:40 UTC | May 16, 05:56 UTC | 13h 16m |
| 2026-05-14 | CMP195 | MEX → PTY | May 14, 12:05 UTC | May 15, 03:25 UTC | 15h 20m |
| 2026-05-13 | CMP194 | PTY → MEX | May 13, 22:55 UTC | May 14, 06:05 UTC | 7h 10m |
| 2026-05-13 | CMP205 | PTY → BSB | May 13, 02:45 UTC | May 13, 20:00 UTC | 17h 15m |
| 2026-05-12 | CMP205 | PTY → BSB | May 12, 09:10 UTC | May 13, 05:30 UTC | 20h 20m |
| 2026-05-12 | CMP477 | DEN → PTY | May 12, 06:05 UTC | May 13, 05:30 UTC | 23h 25m |
| 2026-05-12 | CMP477 | DEN → PTY | May 12, 05:05 UTC | May 13, 03:15 UTC | 22h 10m |
| 2026-05-11 | CMP476 | PTY → DEN | May 11, 12:55 UTC | May 11, 22:35 UTC | 9h 40m |
| 2026-05-10 | CMP441 | PTY → MIA | May 10, 09:10 UTC | May 11, 02:45 UTC | 17h 35m |
| 2026-05-10 | CMP477 | DEN → PTY | May 10, 06:04 UTC | May 11, 02:45 UTC | 20h 40m |
| 2026-05-10 | CMP477 | DEN → PTY | May 10, 05:00 UTC | May 11, 02:45 UTC | 21h 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-9816CMP page for operator, model, and routing details .