sensors Mode-S transponder
0C21B5
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9807CMP · BOEING 737 MAX 8
- Hex
- 0C21B5
- Octal
- 03020665
- Decimal
- 795,061
- Country
- SR
- Tail
- HP-9807CMP
- Type
- B38M
- Flights observed
- 212
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 5h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21B5 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 | Copa Airlines | 16 | 2026-05-28 |
| CMP820 | - | 9 | 2026-06-25 |
| CMP734 | - | 9 | 2026-07-10 |
| CMP709 | - | 8 | 2026-06-26 |
| CMP708 | Copa Airlines | 7 | 2026-06-26 |
| CMP868 | - | 6 | 2026-06-29 |
| CMP423 | - | 6 | 2026-07-11 |
| CMP867 | Copa Airlines | 5 | 2026-07-07 |
| CMP805 | Copa Airlines | 5 | 2026-07-05 |
| CMP316 | - | 5 | 2026-07-10 |
| CMP899 | - | 4 | 2026-07-12 |
| CMP760 | Copa Airlines | 4 | 2026-06-09 |
| CMP451 | - | 4 | 2026-07-07 |
| CMP424 | - | 4 | 2026-07-12 |
| CMP421 | Copa Airlines | 4 | 2026-06-14 |
| CMP235 | Copa Airlines | 4 | 2026-05-20 |
| CMP765 | Copa Airlines | 3 | 2026-05-17 |
| CMP753 | Copa Airlines | 3 | 2026-05-22 |
| CMP752 | - | 3 | 2026-07-01 |
| CMP732 | Copa Airlines | 3 | 2026-05-11 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | CMP897 | - | Jul 13, 11:40 UTC | Jul 14, 03:55 UTC | 16h 15m |
| 2026-07-13 | CMP897 | - | Jul 13, 08:10 UTC | Jul 14, 03:55 UTC | 19h 45m |
| 2026-07-12 | CMP899 | - | Jul 12, 15:50 UTC | Jul 13, 06:40 UTC | 14h 50m |
| 2026-07-12 | CMP899 | - | Jul 12, 09:25 UTC | Jul 13, 06:40 UTC | 21h 15m |
| 2026-07-12 | CMP899 | - | Jul 12, 07:20 UTC | Jul 13, 06:40 UTC | 23h 20m |
| 2026-07-12 | CMP424 | - | Jul 12, 06:35 UTC | Jul 13, 02:45 UTC | 20h 10m |
| 2026-07-12 | CMP424 | - | Jul 12, 04:35 UTC | Jul 13, 02:45 UTC | 22h 10m |
| 2026-07-11 | CMP423 | - | Jul 11, 17:10 UTC | Jul 12, 02:50 UTC | 9h 40m |
| 2026-07-10 | CMP734 | - | Jul 10, 16:05 UTC | Jul 11, 10:20 UTC | 18h 16m |
| 2026-07-10 | CMP316 | - | Jul 10, 12:50 UTC | Jul 10, 14:35 UTC | 1h 45m |
| 2026-07-09 | CMP143 | - | Jul 9, 22:35 UTC | Jul 9, 22:45 UTC | 10m |
| 2026-07-09 | CMP142 | - | Jul 9, 20:15 UTC | Jul 9, 20:30 UTC | 15m |
| 2026-07-09 | CMP6236 | - | Jul 9, 05:50 UTC | Jul 9, 09:50 UTC | 4h 0m |
| 2026-07-08 | CMP9807 | - | Jul 8, 07:20 UTC | Jul 9, 01:45 UTC | 18h 25m |
| 2026-07-08 | CMP9807 | MTY → ORD | Jul 8, 07:05 UTC | Jul 9, 01:45 UTC | 18h 40m |
| 2026-07-07 | CMP175 | MCO → MTY | Jul 7, 19:55 UTC | Jul 8, 04:50 UTC | 8h 55m |
| 2026-07-07 | CMP867 | PTY → MCO | Jul 7, 15:05 UTC | Jul 7, 17:20 UTC | 2h 15m |
| 2026-07-07 | CMP451 | - | Jul 7, 09:50 UTC | Jul 7, 10:05 UTC | 15m |
| 2026-07-07 | CMP450 | - | Jul 7, 01:50 UTC | Jul 7, 02:10 UTC | 20m |
| 2026-07-06 | CMP806 | - | Jul 6, 18:10 UTC | Jul 6, 20:30 UTC | 2h 20m |
| 2026-07-05 | CMP805 | PTY → MCO | Jul 5, 23:35 UTC | Jul 6, 16:05 UTC | 16h 30m |
| 2026-07-05 | CMP805 | PTY → MCO | Jul 5, 17:20 UTC | Jul 6, 16:05 UTC | 22h 45m |
| 2026-07-05 | CMP123 | - | Jul 5, 17:05 UTC | Jul 6, 15:15 UTC | 22h 10m |
| 2026-07-05 | CMP122 | PTY → CUN | Jul 5, 13:40 UTC | Jul 5, 15:25 UTC | 1h 45m |
| 2026-07-03 | CMP6705 | - | Jul 3, 16:00 UTC | Jul 4, 07:50 UTC | 15h 50m |
| 2026-07-02 | CMP704 | PTY → BOS | Jul 2, 01:20 UTC | Jul 2, 18:20 UTC | 17h 0m |
| 2026-07-01 | CMP752 | - | Jul 1, 16:50 UTC | Jul 2, 14:05 UTC | 21h 15m |
| 2026-07-01 | CMP752 | - | Jul 1, 14:35 UTC | Jul 2, 05:55 UTC | 15h 20m |
| 2026-06-30 | CMP425 | TGU → PTY | Jun 30, 15:10 UTC | Jun 30, 17:35 UTC | 2h 25m |
| 2026-06-29 | CMP868 | - | Jun 29, 21:34 UTC | Jun 30, 17:35 UTC | 20h 1m |
| 2026-06-29 | CMP868 | - | Jun 29, 19:39 UTC | Jun 30, 17:35 UTC | 21h 56m |
| 2026-06-29 | CMP867 | PTY → MCO | Jun 29, 15:04 UTC | Jun 29, 17:30 UTC | 2h 25m |
| 2026-06-28 | CMP867 | PTY → MCO | Jun 28, 17:19 UTC | Jun 29, 17:14 UTC | 23h 55m |
| 2026-06-28 | CMP262 | CUN → PTY | Jun 28, 16:14 UTC | Jun 29, 15:14 UTC | 23h 0m |
| 2026-06-28 | CMP863 | - | Jun 28, 06:59 UTC | Jun 28, 14:59 UTC | 8h 0m |
| 2026-06-27 | CMP394 | - | Jun 27, 19:45 UTC | Jun 28, 03:45 UTC | 8h 0m |
| 2026-06-27 | CMP393 | PTY → TPA | Jun 27, 04:19 UTC | Jun 27, 17:39 UTC | 13h 20m |
| 2026-06-26 | CMP709 | - | Jun 26, 21:20 UTC | Jun 27, 17:39 UTC | 20h 20m |
| 2026-06-26 | CMP709 | - | Jun 26, 21:04 UTC | Jun 27, 17:39 UTC | 20h 35m |
| 2026-06-26 | CMP708 | PTY → BWI | Jun 26, 01:10 UTC | Jun 26, 18:54 UTC | 17h 45m |
| 2026-06-25 | CMP708 | PTY → BWI | Jun 25, 22:20 UTC | Jun 26, 18:54 UTC | 20h 35m |
| 2026-06-25 | CMP820 | - | Jun 25, 17:20 UTC | Jun 26, 17:15 UTC | 23h 55m |
| 2026-06-25 | CMP820 | - | Jun 25, 15:20 UTC | Jun 26, 09:24 UTC | 18h 5m |
| 2026-06-25 | CMP236 | ORD → PTY | Jun 25, 13:24 UTC | Jun 26, 09:24 UTC | 20h 0m |
| 2026-06-24 | CMP844 | PTY → ORD | Jun 24, 21:40 UTC | Jun 25, 08:34 UTC | 10h 55m |
| 2026-06-24 | CMP880 | PTY → ATL | Jun 24, 05:05 UTC | Jun 24, 19:34 UTC | 14h 30m |
| 2026-06-23 | CMP423 | - | Jun 23, 16:50 UTC | Jun 24, 03:44 UTC | 10h 55m |
| 2026-06-22 | CMP295 | YYZ → MIA | Jun 22, 19:09 UTC | Jun 23, 05:34 UTC | 10h 25m |
| 2026-06-22 | CMP201 | - | Jun 22, 00:04 UTC | Jun 22, 17:20 UTC | 17h 15m |
| 2026-06-21 | CMP734 | - | Jun 21, 06:19 UTC | Jun 22, 00:44 UTC | 18h 25m |
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-9807CMP page for operator, model, and routing details .