sensors Mode-S transponder
0C21EE
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-1990WWP · BOEING 737-800
- Hex
- 0C21EE
- Octal
- 03020756
- Decimal
- 795,118
- Country
- SR
- Tail
- HP-1990WWP
- Type
- B738
- Flights observed
- 81
- Distinct callsigns
- 16
- Country
- SR
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21EE 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 16 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| WWP918 | - | 14 | 2026-05-29 |
| WWP917 | - | 13 | 2026-05-30 |
| CMP8947 | Copa Airlines | 11 | 2026-05-23 |
| CMP8934 | - | 6 | 2026-05-24 |
| CMP8901 | Copa Airlines | 6 | 2026-05-28 |
| WWP940 | - | 5 | 2026-05-28 |
| WWP916 | - | 5 | 2026-05-28 |
| CMP8900 | Copa Airlines | 5 | 2026-05-28 |
| WWP915 | - | 4 | 2026-05-31 |
| CMP8946 | - | 4 | 2026-04-21 |
| WW918 | - | 2 | 2026-04-22 |
| CMP8933 | - | 2 | 2026-05-17 |
| WWP941 | - | 1 | 2026-04-16 |
| WWP938 | - | 1 | 2026-06-02 |
| WWP903 | - | 1 | 2026-05-12 |
| WWP902 | - | 1 | 2026-05-12 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | WWP938 | - | Jun 2, 19:45 UTC | Jun 2, 20:25 UTC | 40m |
| 2026-05-31 | WWP915 | - | May 31, 19:45 UTC | May 31, 22:50 UTC | 3h 5m |
| 2026-05-30 | WWP917 | - | May 30, 07:10 UTC | May 30, 08:10 UTC | 1h 0m |
| 2026-05-29 | WWP918 | - | May 29, 19:05 UTC | May 30, 06:05 UTC | 11h 0m |
| 2026-05-28 | WWP916 | - | May 28, 23:30 UTC | May 29, 14:10 UTC | 14h 40m |
| 2026-05-28 | WWP940 | - | May 28, 21:50 UTC | May 28, 22:00 UTC | 10m |
| 2026-05-28 | CMP8901 | MIA → PTY | May 28, 03:50 UTC | May 28, 04:25 UTC | 35m |
| 2026-05-28 | CMP8900 | PTY → MIA | May 28, 01:30 UTC | May 28, 01:40 UTC | 10m |
| 2026-05-27 | CMP8900 | PTY → MIA | May 27, 17:50 UTC | May 27, 23:10 UTC | 5h 20m |
| 2026-05-27 | WWP917 | - | May 27, 17:00 UTC | May 27, 17:25 UTC | 25m |
| 2026-05-27 | WWP918 | - | May 27, 13:55 UTC | May 27, 15:25 UTC | 1h 30m |
| 2026-05-24 | WWP917 | - | May 24, 16:30 UTC | May 24, 17:30 UTC | 1h 0m |
| 2026-05-24 | WWP918 | - | May 24, 14:10 UTC | May 24, 15:20 UTC | 1h 10m |
| 2026-05-24 | CMP8934 | - | May 24, 04:35 UTC | May 24, 07:55 UTC | 3h 20m |
| 2026-05-23 | CMP8947 | HAV → SJO | May 23, 10:25 UTC | May 24, 07:55 UTC | 21h 30m |
| 2026-05-23 | CMP8947 | HAV → SJO | May 23, 06:40 UTC | May 24, 04:40 UTC | 22h 1m |
| 2026-05-23 | WWP917 | - | May 23, 02:15 UTC | May 23, 11:05 UTC | 8h 49m |
| 2026-05-22 | WWP918 | - | May 22, 10:05 UTC | May 23, 00:35 UTC | 14h 30m |
| 2026-05-21 | CMP8934 | - | May 21, 22:10 UTC | May 22, 07:50 UTC | 9h 40m |
| 2026-05-21 | CMP8901 | MIA → PTY | May 21, 02:45 UTC | May 21, 20:10 UTC | 17h 25m |
| 2026-05-21 | CMP8900 | PTY → MIA | May 21, 01:15 UTC | May 21, 01:40 UTC | 25m |
| 2026-05-19 | CMP8947 | HAV → SJO | May 19, 09:50 UTC | May 19, 14:15 UTC | 4h 25m |
| 2026-05-18 | WWP940 | - | May 18, 12:40 UTC | May 18, 12:50 UTC | 10m |
| 2026-05-17 | CMP8933 | - | May 17, 10:05 UTC | May 17, 22:35 UTC | 12h 30m |
| 2026-05-16 | CMP8934 | - | May 16, 11:35 UTC | May 17, 07:20 UTC | 19h 45m |
| 2026-05-16 | CMP8947 | HAV → SJO | May 16, 10:55 UTC | May 17, 07:20 UTC | 20h 25m |
| 2026-05-16 | CMP8947 | HAV → SJO | May 16, 07:35 UTC | May 17, 07:20 UTC | 23h 45m |
| 2026-05-16 | CMP8947 | HAV → SJO | May 16, 07:16 UTC | May 17, 04:05 UTC | 20h 49m |
| 2026-05-16 | WWP917 | - | May 16, 01:35 UTC | May 16, 11:41 UTC | 10h 6m |
| 2026-05-15 | WWP918 | - | May 15, 10:10 UTC | May 16, 00:10 UTC | 13h 59m |
| 2026-05-15 | CMP8934 | - | May 15, 08:00 UTC | May 15, 08:10 UTC | 10m |
| 2026-05-14 | WWP940 | - | May 14, 19:20 UTC | May 14, 19:35 UTC | 15m |
| 2026-05-13 | WWP917 | - | May 13, 17:00 UTC | May 13, 18:00 UTC | 1h 0m |
| 2026-05-13 | WWP918 | - | May 13, 14:10 UTC | May 13, 15:25 UTC | 1h 15m |
| 2026-05-12 | WWP918 | - | May 12, 15:40 UTC | May 13, 15:25 UTC | 23h 45m |
| 2026-05-12 | WWP903 | - | May 12, 14:15 UTC | May 12, 16:35 UTC | 2h 20m |
| 2026-05-12 | WWP902 | - | May 12, 08:10 UTC | May 12, 10:30 UTC | 2h 20m |
| 2026-05-10 | WWP916 | - | May 10, 19:40 UTC | May 10, 22:35 UTC | 2h 55m |
| 2026-05-09 | WWP917 | - | May 9, 03:45 UTC | May 9, 04:45 UTC | 1h 0m |
| 2026-05-08 | WWP918 | - | May 8, 14:35 UTC | May 9, 02:20 UTC | 11h 45m |
| 2026-05-07 | WWP940 | - | May 7, 01:45 UTC | May 7, 20:25 UTC | 18h 40m |
| 2026-05-06 | WWP917 | - | May 6, 17:45 UTC | May 7, 01:50 UTC | 8h 5m |
| 2026-05-06 | WWP918 | - | May 6, 15:05 UTC | May 6, 15:35 UTC | 30m |
| 2026-05-05 | CMP8947 | HAV → SJO | May 5, 09:50 UTC | May 5, 14:35 UTC | 4h 45m |
| 2026-05-03 | WWP915 | - | May 3, 19:34 UTC | May 3, 22:39 UTC | 3h 5m |
| 2026-05-01 | CMP8947 | HAV → SJO | May 1, 22:40 UTC | May 2, 10:40 UTC | 12h 1m |
| 2026-05-01 | WWP916 | - | May 1, 17:30 UTC | May 1, 17:50 UTC | 20m |
| 2026-04-30 | WWP916 | - | Apr 30, 22:15 UTC | May 1, 17:50 UTC | 19h 35m |
| 2026-04-30 | CMP8901 | MIA → PTY | Apr 30, 02:00 UTC | Apr 30, 20:20 UTC | 18h 20m |
| 2026-04-29 | WWP917 | - | Apr 29, 17:25 UTC | Apr 30, 04:40 UTC | 11h 14m |
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-1990WWP page for operator, model, and routing details .