sensors Mode-S transponder
0C20CF
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-1855CMP · BOEING 737-800
- Hex
- 0C20CF
- Octal
- 03020317
- Decimal
- 794,831
- Country
- SR
- Tail
- HP-1855CMP
- Type
- B738
- Flights observed
- 104
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 0C20CF 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 |
|---|---|---|---|
| CMP477 | Copa Airlines | 7 | 2026-05-26 |
| CMP235 | Copa Airlines | 6 | 2026-05-28 |
| CMP476 | Copa Airlines | 4 | 2026-05-25 |
| CMP236 | Copa Airlines | 4 | 2026-05-28 |
| CMP836 | Copa Airlines | 3 | 2026-04-29 |
| CMP357 | - | 3 | 2026-04-22 |
| CMP862 | Copa Airlines | 2 | 2026-05-29 |
| CMP709 | Copa Airlines | 2 | 2026-05-16 |
| CMP708 | Copa Airlines | 2 | 2026-05-16 |
| CMP478 | Copa Airlines | 2 | 2026-04-14 |
| CMP459 | Copa Airlines | 2 | 2026-05-29 |
| CMP456 | Copa Airlines | 2 | 2026-05-09 |
| CMP448 | Copa Airlines | 2 | 2026-04-26 |
| CMP445 | Copa Airlines | 2 | 2026-04-14 |
| CMP435 | Copa Airlines | 2 | 2026-04-16 |
| CMP434 | Copa Airlines | 2 | 2026-04-16 |
| CMP432 | Copa Airlines | 2 | 2026-04-17 |
| CMP404 | Copa Airlines | 2 | 2026-04-22 |
| CMP403 | Copa Airlines | 2 | 2026-04-27 |
| CMP296 | Copa Airlines | 2 | 2026-04-24 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | CMP459 | MCO → PTY | May 29, 21:15 UTC | May 29, 23:30 UTC | 2h 15m |
| 2026-05-29 | CMP862 | PTY → MCO | May 29, 07:45 UTC | May 29, 17:40 UTC | 9h 55m |
| 2026-05-28 | CMP337 | PTY → LIM | May 28, 23:35 UTC | May 29, 05:35 UTC | 6h 0m |
| 2026-05-28 | CMP413 | PTY → BOG | May 28, 21:45 UTC | May 28, 22:10 UTC | 25m |
| 2026-05-28 | CMP236 | ORD → PTY | May 28, 13:20 UTC | May 28, 17:25 UTC | 4h 5m |
| 2026-05-28 | CMP235 | PTY → ORD | May 28, 01:25 UTC | May 28, 05:40 UTC | 4h 15m |
| 2026-05-27 | CMP235 | PTY → ORD | May 27, 09:35 UTC | May 28, 05:40 UTC | 20h 5m |
| 2026-05-27 | CMP235 | PTY → ORD | May 27, 03:29 UTC | May 28, 01:35 UTC | 22h 5m |
| 2026-05-26 | CMP477 | DEN → PTY | May 26, 09:49 UTC | May 27, 09:40 UTC | 23h 50m |
| 2026-05-26 | CMP477 | DEN → PTY | May 26, 07:59 UTC | May 27, 03:34 UTC | 19h 35m |
| 2026-05-26 | CMP477 | DEN → PTY | May 26, 05:00 UTC | May 26, 09:59 UTC | 5h 0m |
| 2026-05-25 | CMP476 | PTY → DEN | May 25, 07:45 UTC | May 25, 23:35 UTC | 15h 49m |
| 2026-05-24 | CMP716 | AUS → PTY | May 24, 20:55 UTC | May 25, 05:25 UTC | 8h 30m |
| 2026-05-24 | CMP715 | PTY → AUS | May 24, 09:35 UTC | May 24, 18:45 UTC | 9h 10m |
| 2026-05-24 | CMP838 | PTY → LIM | May 24, 03:40 UTC | May 24, 04:20 UTC | 40m |
| 2026-05-23 | CMP477 | DEN → PTY | May 23, 07:55 UTC | May 24, 04:20 UTC | 20h 26m |
| 2026-05-23 | CMP477 | DEN → PTY | May 23, 05:50 UTC | May 24, 04:20 UTC | 22h 31m |
| 2026-05-23 | CMP477 | DEN → PTY | May 23, 05:10 UTC | May 24, 03:45 UTC | 22h 35m |
| 2026-05-22 | CMP476 | PTY → DEN | May 22, 11:40 UTC | May 22, 23:45 UTC | 12h 5m |
| 2026-05-21 | CMP474 | PTY → SCL | May 21, 20:20 UTC | May 22, 03:35 UTC | 7h 15m |
| 2026-05-21 | CMP480 | PTY → STI | May 21, 18:20 UTC | May 21, 18:30 UTC | 10m |
| 2026-05-21 | CMP104 | CUN → PTY | May 21, 12:20 UTC | May 21, 13:50 UTC | 1h 30m |
| 2026-05-20 | CMP103 | PTY → CUN | May 20, 08:10 UTC | May 21, 02:50 UTC | 18h 40m |
| 2026-05-19 | CMP899 | PTY → ROS | May 19, 17:25 UTC | May 20, 06:25 UTC | 13h 1m |
| 2026-05-19 | CMP431 | MIA → PTY | May 19, 12:25 UTC | May 19, 12:35 UTC | 10m |
| 2026-05-19 | CMP876 | PTY → BOG | May 19, 03:35 UTC | May 19, 03:55 UTC | 20m |
| 2026-05-18 | CMP143 | SJU → PTY | May 18, 22:25 UTC | May 18, 22:40 UTC | 15m |
| 2026-05-18 | CMP142 | PTY → SJU | May 18, 19:45 UTC | May 18, 20:00 UTC | 15m |
| 2026-05-18 | CMP267 | SDQ → PTY | May 18, 13:00 UTC | May 18, 18:55 UTC | 5h 54m |
| 2026-05-17 | CMP479 | MCO → PTY | May 17, 19:01 UTC | May 18, 02:40 UTC | 7h 40m |
| 2026-05-17 | CMP446 | PTY → MCO | May 17, 07:55 UTC | May 17, 16:50 UTC | 8h 55m |
| 2026-05-16 | CMP709 | BWI → PTY | May 16, 20:55 UTC | May 17, 05:55 UTC | 9h 0m |
| 2026-05-16 | CMP708 | PTY → BWI | May 16, 15:16 UTC | May 16, 19:15 UTC | 4h 0m |
| 2026-05-15 | CMP857 | MEX → PTY | May 15, 08:20 UTC | May 15, 10:35 UTC | 2h 15m |
| 2026-05-14 | CMP858 | PTY → MEX | May 14, 22:25 UTC | May 15, 06:40 UTC | 8h 15m |
| 2026-05-14 | CMP477 | DEN → PTY | May 14, 05:00 UTC | May 14, 20:30 UTC | 15h 30m |
| 2026-05-13 | CMP476 | PTY → DEN | May 13, 23:40 UTC | May 13, 23:45 UTC | 5m |
| 2026-05-13 | CMP476 | PTY → DEN | May 13, 12:20 UTC | May 13, 23:35 UTC | 11h 15m |
| 2026-05-12 | CMP806 | MCO → PTY | May 12, 17:50 UTC | May 13, 02:15 UTC | 8h 25m |
| 2026-05-12 | CMP805 | PTY → MCO | May 12, 07:25 UTC | May 12, 15:40 UTC | 8h 15m |
| 2026-05-10 | CMP333 | MIA → PTY | May 10, 21:54 UTC | May 11, 16:40 UTC | 18h 45m |
| 2026-05-10 | CMP253 | LAS → PTY | May 10, 08:10 UTC | May 10, 18:09 UTC | 10h 0m |
| 2026-05-09 | CMP456 | PTY → LAS | May 9, 12:20 UTC | May 10, 05:14 UTC | 16h 55m |
| 2026-05-09 | CMP456 | PTY → LAS | May 9, 02:20 UTC | May 10, 01:45 UTC | 23h 25m |
| 2026-05-07 | CMP400 | LIM → PTY | May 7, 16:35 UTC | May 7, 17:25 UTC | 50m |
| 2026-05-07 | CMP489 | PTY → LIM | May 7, 03:00 UTC | May 7, 03:20 UTC | 20m |
| 2026-05-05 | CMP710 | MGA → PTY | May 5, 09:30 UTC | May 5, 09:40 UTC | 10m |
| 2026-05-04 | CMP459 | MCO → PTY | May 4, 21:15 UTC | May 5, 03:45 UTC | 6h 30m |
| 2026-05-04 | CMP862 | PTY → MCO | May 4, 10:30 UTC | May 4, 18:00 UTC | 7h 30m |
| 2026-05-03 | CMP427 | PTY → MIA | May 3, 20:15 UTC | May 4, 02:10 UTC | 5h 55m |
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-1855CMP page for operator, model, and routing details .