sensors Mode-S transponder
0C21B6
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9808CMP · BOEING 737 MAX 8
- Hex
- 0C21B6
- Octal
- 03020666
- Decimal
- 795,062
- Country
- SR
- Tail
- HP-9808CMP
- Type
- B38M
- Flights observed
- 210
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21B6 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 | Copa Airlines | 17 | 2026-06-07 |
| CMP366 | - | 10 | 2026-07-10 |
| CMP753 | Copa Airlines | 7 | 2026-06-09 |
| CMP734 | Copa Airlines | 7 | 2026-06-10 |
| CMP752 | - | 6 | 2026-07-12 |
| CMP733 | Copa Airlines | 6 | 2026-06-09 |
| CMP312 | - | 6 | 2026-07-11 |
| CMP866 | Copa Airlines | 5 | 2026-05-23 |
| CMP765 | Copa Airlines | 5 | 2026-05-16 |
| CMP195 | Copa Airlines | 5 | 2026-06-18 |
| CMP194 | - | 5 | 2026-06-17 |
| CMP821 | Copa Airlines | 4 | 2026-06-04 |
| CMP760 | - | 4 | 2026-07-13 |
| CMP477 | Copa Airlines | 4 | 2026-05-07 |
| CMP456 | - | 4 | 2026-06-13 |
| CMP450 | - | 4 | 2026-07-14 |
| CMP420 | Copa Airlines | 4 | 2026-05-29 |
| CMP253 | Copa Airlines | 4 | 2026-06-14 |
| CMP229 | - | 4 | 2026-06-30 |
| CMP122 | Copa Airlines | 4 | 2026-07-11 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | CMP450 | - | Jul 14, 02:00 UTC | Jul 14, 02:10 UTC | 10m |
| 2026-07-13 | CMP760 | - | Jul 13, 18:50 UTC | Jul 13, 19:35 UTC | 45m |
| 2026-07-12 | CMP752 | - | Jul 12, 22:00 UTC | Jul 13, 16:55 UTC | 18h 55m |
| 2026-07-12 | CMP752 | - | Jul 12, 17:55 UTC | Jul 13, 16:55 UTC | 23h 0m |
| 2026-07-12 | CMP752 | - | Jul 12, 17:01 UTC | Jul 13, 11:10 UTC | 18h 10m |
| 2026-07-11 | CMP122 | PTY → CUN | Jul 11, 23:15 UTC | Jul 12, 15:50 UTC | 16h 35m |
| 2026-07-11 | CMP122 | PTY → CUN | Jul 11, 15:35 UTC | Jul 12, 15:30 UTC | 23h 55m |
| 2026-07-11 | CMP312 | - | Jul 11, 13:35 UTC | Jul 12, 09:00 UTC | 19h 25m |
| 2026-07-11 | CMP312 | - | Jul 11, 13:05 UTC | Jul 12, 09:00 UTC | 19h 55m |
| 2026-07-10 | CMP366 | - | Jul 10, 10:00 UTC | Jul 11, 02:40 UTC | 16h 40m |
| 2026-07-10 | CMP366 | - | Jul 10, 05:45 UTC | Jul 11, 02:40 UTC | 20h 55m |
| 2026-07-09 | CMP705 | - | Jul 9, 23:35 UTC | Jul 10, 22:35 UTC | 23h 0m |
| 2026-07-09 | CMP705 | - | Jul 9, 21:05 UTC | Jul 10, 10:20 UTC | 13h 15m |
| 2026-07-09 | CMP704 | PTY → BOS | Jul 9, 04:15 UTC | Jul 9, 18:30 UTC | 14h 15m |
| 2026-07-07 | CMP433 | - | Jul 7, 12:50 UTC | Jul 7, 18:15 UTC | 5h 25m |
| 2026-07-06 | CMP441 | - | Jul 6, 18:50 UTC | Jul 7, 02:25 UTC | 7h 35m |
| 2026-07-06 | CMP424 | - | Jul 6, 04:20 UTC | Jul 6, 16:55 UTC | 12h 35m |
| 2026-07-05 | CMP312 | BOS → PTY | Jul 5, 13:35 UTC | Jul 6, 03:00 UTC | 13h 25m |
| 2026-07-04 | CMP366 | - | Jul 4, 05:35 UTC | Jul 5, 02:55 UTC | 21h 20m |
| 2026-07-04 | CMP366 | - | Jul 4, 01:35 UTC | Jul 5, 01:30 UTC | 23h 55m |
| 2026-07-04 | CMP752 | - | Jul 4, 01:25 UTC | Jul 4, 17:35 UTC | 16h 10m |
| 2026-07-03 | CMP752 | - | Jul 3, 16:55 UTC | Jul 4, 15:10 UTC | 22h 15m |
| 2026-07-03 | CMP424 | - | Jul 3, 04:35 UTC | Jul 3, 15:10 UTC | 10h 35m |
| 2026-07-02 | CMP312 | BOS → PTY | Jul 2, 13:05 UTC | Jul 3, 03:05 UTC | 14h 0m |
| 2026-07-01 | CMP366 | - | Jul 1, 11:20 UTC | Jul 2, 02:40 UTC | 15h 20m |
| 2026-07-01 | CMP366 | - | Jul 1, 04:30 UTC | Jul 2, 02:40 UTC | 22h 10m |
| 2026-07-01 | CMP366 | - | Jul 1, 01:35 UTC | Jul 2, 01:30 UTC | 23h 55m |
| 2026-06-30 | CMP229 | - | Jun 30, 21:10 UTC | Jul 1, 11:45 UTC | 14h 35m |
| 2026-06-30 | CMP228 | - | Jun 30, 06:35 UTC | Jun 30, 19:15 UTC | 12h 40m |
| 2026-06-29 | CMP813 | PTY → JFK | Jun 29, 17:59 UTC | Jun 29, 22:00 UTC | 4h 0m |
| 2026-06-28 | CMP813 | PTY → JFK | Jun 28, 23:34 UTC | Jun 29, 22:00 UTC | 22h 25m |
| 2026-06-28 | CMP813 | PTY → JFK | Jun 28, 21:34 UTC | Jun 29, 21:30 UTC | 23h 55m |
| 2026-06-28 | CMP709 | - | Jun 28, 21:14 UTC | Jun 29, 19:29 UTC | 22h 15m |
| 2026-06-28 | CMP708 | - | Jun 28, 04:29 UTC | Jun 28, 19:09 UTC | 14h 40m |
| 2026-06-27 | CMP423 | - | Jun 27, 13:49 UTC | Jun 28, 02:54 UTC | 13h 5m |
| 2026-06-26 | CMP868 | MCO → PTY | Jun 26, 21:35 UTC | Jun 27, 18:15 UTC | 20h 40m |
| 2026-06-26 | CMP868 | MCO → PTY | Jun 26, 19:35 UTC | Jun 27, 18:15 UTC | 22h 40m |
| 2026-06-26 | CMP867 | PTY → MCO | Jun 26, 15:10 UTC | Jun 26, 17:40 UTC | 2h 30m |
| 2026-06-24 | CMP126 | - | Jun 24, 23:45 UTC | Jun 25, 07:54 UTC | 8h 10m |
| 2026-06-24 | CMP451 | - | Jun 24, 09:55 UTC | Jun 24, 10:04 UTC | 10m |
| 2026-06-24 | CMP450 | - | Jun 24, 02:05 UTC | Jun 24, 02:15 UTC | 10m |
| 2026-06-22 | CMP451 | - | Jun 22, 09:49 UTC | Jun 22, 10:05 UTC | 15m |
| 2026-06-22 | CMP450 | - | Jun 22, 02:04 UTC | Jun 22, 02:14 UTC | 10m |
| 2026-06-21 | CMP410 | PTY → SAL | Jun 21, 19:29 UTC | Jun 22, 01:10 UTC | 5h 40m |
| 2026-06-21 | CMP419 | - | Jun 21, 14:24 UTC | Jun 21, 16:19 UTC | 1h 55m |
| 2026-06-20 | CMP419 | - | Jun 20, 20:00 UTC | Jun 21, 16:19 UTC | 20h 20m |
| 2026-06-20 | CMP806 | MCO → PTY | Jun 20, 17:59 UTC | Jun 21, 16:19 UTC | 22h 20m |
| 2026-06-20 | CMP805 | PTY → MCO | Jun 20, 07:59 UTC | Jun 20, 15:49 UTC | 7h 50m |
| 2026-06-19 | CMP709 | - | Jun 19, 21:04 UTC | Jun 20, 05:24 UTC | 8h 20m |
| 2026-06-19 | CMP708 | PTY → BWI | Jun 19, 15:19 UTC | Jun 19, 19:09 UTC | 3h 50m |
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-9808CMP page for operator, model, and routing details .