sensors Mode-S transponder
0C21DE
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP9814 · BOEING 737 MAX 8
- Hex
- 0C21DE
- Octal
- 03020736
- Decimal
- 795,102
- Country
- SR
- Tail
- HP9814
- Type
- B38M
- Flights observed
- 186
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 5h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21DE 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 | - | 10 | 2026-07-02 |
| CMP476 | - | 9 | 2026-06-26 |
| CMP820 | - | 8 | 2026-07-03 |
| CMP765 | Copa Airlines | 8 | 2026-05-06 |
| CMP477 | - | 7 | 2026-06-27 |
| CMP882 | - | 5 | 2026-07-12 |
| CMP752 | - | 4 | 2026-07-09 |
| CMP478 | - | 4 | 2026-06-18 |
| CMP423 | - | 4 | 2026-06-19 |
| CMP127 | Copa Airlines | 4 | 2026-04-24 |
| CMP836 | - | 3 | 2026-07-13 |
| CMP778 | Copa Airlines | 3 | 2026-05-08 |
| CMP715 | Copa Airlines | 3 | 2026-06-06 |
| CMP445 | - | 3 | 2026-06-18 |
| CMP334 | - | 3 | 2026-07-11 |
| CMP253 | Copa Airlines | 3 | 2026-05-31 |
| CMP236 | Copa Airlines | 3 | 2026-07-01 |
| CMP149 | - | 3 | 2026-07-08 |
| CMP138 | - | 3 | 2026-07-07 |
| CMP871 | Copa Airlines | 2 | 2026-04-22 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | CMP465 | - | Jul 14, 12:00 UTC | Jul 14, 12:15 UTC | 15m |
| 2026-07-13 | CMP836 | - | Jul 13, 08:50 UTC | Jul 14, 03:30 UTC | 18h 40m |
| 2026-07-13 | CMP836 | - | Jul 13, 05:35 UTC | Jul 14, 03:30 UTC | 21h 55m |
| 2026-07-13 | CMP836 | - | Jul 13, 05:20 UTC | Jul 14, 03:30 UTC | 22h 10m |
| 2026-07-12 | CMP882 | - | Jul 12, 14:05 UTC | Jul 13, 03:50 UTC | 13h 45m |
| 2026-07-12 | CMP882 | - | Jul 12, 08:20 UTC | Jul 13, 03:50 UTC | 19h 30m |
| 2026-07-11 | CMP333 | - | Jul 11, 21:30 UTC | Jul 12, 05:15 UTC | 7h 45m |
| 2026-07-11 | CMP334 | - | Jul 11, 12:20 UTC | Jul 11, 18:30 UTC | 6h 10m |
| 2026-07-10 | CMP430 | - | Jul 10, 09:40 UTC | Jul 11, 04:55 UTC | 19h 15m |
| 2026-07-10 | CMP403 | - | Jul 10, 07:35 UTC | Jul 11, 04:55 UTC | 21h 20m |
| 2026-07-10 | CMP403 | IAD → BOG | Jul 10, 06:20 UTC | Jul 11, 04:55 UTC | 22h 35m |
| 2026-07-09 | CMP448 | - | Jul 9, 19:00 UTC | Jul 10, 04:00 UTC | 9h 0m |
| 2026-07-09 | CMP752 | - | Jul 9, 01:30 UTC | Jul 9, 17:05 UTC | 15h 35m |
| 2026-07-08 | CMP752 | - | Jul 8, 16:25 UTC | Jul 9, 11:00 UTC | 18h 35m |
| 2026-07-08 | CMP752 | - | Jul 8, 09:35 UTC | Jul 9, 06:00 UTC | 20h 25m |
| 2026-07-08 | CMP149 | - | Jul 8, 07:35 UTC | Jul 9, 06:00 UTC | 22h 25m |
| 2026-07-07 | CMP138 | - | Jul 7, 16:30 UTC | Jul 8, 00:30 UTC | 8h 0m |
| 2026-07-06 | CMP868 | - | Jul 6, 20:00 UTC | Jul 7, 03:15 UTC | 7h 15m |
| 2026-07-06 | CMP467 | - | Jul 6, 00:45 UTC | Jul 6, 17:30 UTC | 16h 45m |
| 2026-07-05 | CMP466A | - | Jul 5, 22:20 UTC | Jul 5, 22:45 UTC | 25m |
| 2026-07-05 | CMP466 | PTY → RDU | Jul 5, 02:05 UTC | Jul 5, 18:05 UTC | 16h 0m |
| 2026-07-04 | CMP705 | BOS → CUN | Jul 4, 21:05 UTC | Jul 5, 00:40 UTC | 3h 35m |
| 2026-07-04 | CMP704 | PTY → BOS | Jul 4, 01:25 UTC | Jul 4, 18:05 UTC | 16h 40m |
| 2026-07-03 | CMP704 | PTY → BOS | Jul 3, 22:25 UTC | Jul 4, 18:05 UTC | 19h 40m |
| 2026-07-03 | CMP820 | - | Jul 3, 15:35 UTC | Jul 4, 15:30 UTC | 23h 55m |
| 2026-07-03 | CMP312 | BOS → PTY | Jul 3, 13:35 UTC | Jul 4, 09:10 UTC | 19h 35m |
| 2026-07-03 | CMP312 | BOS → PTY | Jul 3, 13:10 UTC | Jul 4, 09:10 UTC | 20h 0m |
| 2026-07-02 | CMP366 | - | Jul 2, 09:00 UTC | Jul 3, 02:55 UTC | 17h 55m |
| 2026-07-02 | CMP366 | - | Jul 2, 06:15 UTC | Jul 3, 02:55 UTC | 20h 40m |
| 2026-07-02 | CMP734 | - | Jul 2, 01:15 UTC | Jul 2, 22:40 UTC | 21h 25m |
| 2026-07-01 | CMP236 | ORD → PTY | Jul 1, 15:35 UTC | Jul 2, 14:25 UTC | 22h 50m |
| 2026-07-01 | CMP236 | ORD → PTY | Jul 1, 13:35 UTC | Jul 2, 09:05 UTC | 19h 30m |
| 2026-07-01 | CMP236 | ORD → PTY | Jul 1, 13:20 UTC | Jul 2, 09:05 UTC | 19h 45m |
| 2026-06-30 | CMP844 | PTY → ORD | Jun 30, 14:30 UTC | Jul 1, 08:15 UTC | 17h 45m |
| 2026-06-30 | CMP844 | PTY → ORD | Jun 30, 12:35 UTC | Jul 1, 08:15 UTC | 19h 40m |
| 2026-06-29 | CMP434 | - | Jun 29, 23:44 UTC | Jun 30, 01:55 UTC | 2h 11m |
| 2026-06-27 | CMP820 | - | Jun 27, 15:49 UTC | Jun 28, 09:30 UTC | 17h 40m |
| 2026-06-27 | CMP477 | DEN → CUN | Jun 27, 04:59 UTC | Jun 27, 14:29 UTC | 9h 30m |
| 2026-06-26 | CMP476 | - | Jun 26, 19:00 UTC | Jun 27, 00:00 UTC | 5h 0m |
| 2026-06-25 | CMP298 | PTY → SDQ | Jun 25, 16:39 UTC | Jun 25, 16:50 UTC | 10m |
| 2026-06-24 | CMP262 | CUN → PTY | Jun 24, 16:05 UTC | Jun 24, 17:34 UTC | 1h 30m |
| 2026-06-24 | CMP293 | PTY → CUN | Jun 24, 13:05 UTC | Jun 24, 14:45 UTC | 1h 40m |
| 2026-06-23 | CMP477 | - | Jun 23, 05:00 UTC | Jun 23, 09:29 UTC | 4h 30m |
| 2026-06-22 | CMP476 | - | Jun 22, 18:49 UTC | Jun 22, 23:45 UTC | 4h 55m |
| 2026-06-21 | CMP104 | CUN → PTY | Jun 21, 12:14 UTC | Jun 21, 13:59 UTC | 1h 45m |
| 2026-06-20 | CMP479 | MCO → PTY | Jun 20, 19:29 UTC | Jun 21, 02:35 UTC | 7h 5m |
| 2026-06-20 | CMP424 | - | Jun 20, 04:34 UTC | Jun 20, 16:09 UTC | 11h 35m |
| 2026-06-19 | CMP423 | - | Jun 19, 09:30 UTC | Jun 20, 02:49 UTC | 17h 20m |
| 2026-06-19 | CMP423 | - | Jun 19, 03:39 UTC | Jun 20, 02:49 UTC | 23h 10m |
| 2026-06-19 | CMP141 | - | Jun 19, 00:05 UTC | Jun 19, 23:04 UTC | 22h 59m |
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 HP9814 page for operator, model, and routing details .