sensors Mode-S transponder
0C21FA
ICAO 24-bit transponder address · allocated to Suriname
- Hex
- 0C21FA
- Octal
- 03020772
- Decimal
- 795,130
- Country
- SR
- Flights observed
- 57
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 5h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21FA 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 |
|---|---|---|---|
| CMP9818 | Copa Airlines | 4 | 2026-04-16 |
| CMP733 | Copa Airlines | 4 | 2026-05-15 |
| CMP463 | Copa Airlines | 3 | 2026-06-02 |
| CMP141 | Copa Airlines | 3 | 2026-05-07 |
| CMP897 | Copa Airlines | 2 | 2026-05-03 |
| CMP867 | Copa Airlines | 2 | 2026-05-24 |
| CMP832 | Copa Airlines | 2 | 2026-04-30 |
| CMP752 | Copa Airlines | 2 | 2026-05-17 |
| CMP712 | Copa Airlines | 2 | 2026-05-11 |
| CMP471 | Copa Airlines | 2 | 2026-05-04 |
| CMP421 | Copa Airlines | 2 | 2026-05-09 |
| CMP298 | Copa Airlines | 2 | 2026-05-12 |
| CMP198 | Copa Airlines | 2 | 2026-05-02 |
| CMP899 | Copa Airlines | 1 | 2026-05-02 |
| CMP889 | Copa Airlines | 1 | 2026-05-22 |
| CMP748 | Copa Airlines | 1 | 2026-05-16 |
| CMP732 | Copa Airlines | 1 | 2026-05-05 |
| CMP728 | Copa Airlines | 1 | 2026-05-20 |
| CMP709 | Copa Airlines | 1 | 2026-05-31 |
| CMP708 | Copa Airlines | 1 | 2026-05-31 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | CMP129 | SDQ → PTY | Jun 2, 17:10 UTC | Jun 2, 17:20 UTC | 10m |
| 2026-06-02 | CMP463 | PTY → COR | Jun 2, 15:10 UTC | Jun 2, 15:20 UTC | 10m |
| 2026-05-31 | CMP709 | BWI → PTY | May 31, 21:10 UTC | Jun 1, 00:30 UTC | 3h 20m |
| 2026-05-31 | CMP708 | PTY → BWI | May 31, 11:20 UTC | May 31, 19:15 UTC | 7h 55m |
| 2026-05-28 | CMP242 | PUJ → PTY | May 28, 10:45 UTC | May 28, 18:30 UTC | 7h 45m |
| 2026-05-28 | CMP451 | SJU → PTY | May 28, 09:40 UTC | May 28, 09:55 UTC | 15m |
| 2026-05-28 | CMP450 | PTY → SJU | May 28, 02:00 UTC | May 28, 02:10 UTC | 10m |
| 2026-05-27 | CMP253 | LAS → PTY | May 27, 08:00 UTC | May 27, 20:00 UTC | 12h 0m |
| 2026-05-26 | CMP456 | PTY → LAS | May 26, 20:24 UTC | May 27, 05:29 UTC | 9h 5m |
| 2026-05-25 | CMP236 | ORD → PTY | May 25, 13:15 UTC | May 25, 15:55 UTC | 2h 40m |
| 2026-05-24 | CMP235 | PTY → ORD | May 24, 19:50 UTC | May 25, 05:50 UTC | 10h 0m |
| 2026-05-24 | CMP867 | PTY → MCO | May 24, 10:05 UTC | May 24, 17:25 UTC | 7h 20m |
| 2026-05-23 | CMP459 | MCO → PTY | May 23, 21:40 UTC | May 24, 05:45 UTC | 8h 5m |
| 2026-05-22 | CMP867 | PTY → MCO | May 22, 23:40 UTC | May 23, 18:25 UTC | 18h 45m |
| 2026-05-22 | CMP269 | PTY → COR | May 22, 16:55 UTC | May 23, 16:20 UTC | 23h 25m |
| 2026-05-22 | CMP889 | PTY → POP | May 22, 14:45 UTC | May 22, 15:00 UTC | 15m |
| 2026-05-22 | CMP477 | DEN → PTY | May 22, 05:05 UTC | May 22, 09:45 UTC | 4h 40m |
| 2026-05-21 | CMP476 | PTY → DEN | May 21, 18:45 UTC | May 21, 23:45 UTC | 5h 0m |
| 2026-05-20 | CMP728 | PTY → PUJ | May 20, 05:20 UTC | May 20, 18:45 UTC | 13h 25m |
| 2026-05-19 | CMP268 | PTY → SDQ | May 19, 02:30 UTC | May 19, 02:40 UTC | 10m |
| 2026-05-17 | CMP752 | PTY → SSA | May 17, 18:10 UTC | May 18, 10:35 UTC | 16h 25m |
| 2026-05-17 | CMP752 | PTY → SSA | May 17, 15:40 UTC | May 18, 10:35 UTC | 18h 55m |
| 2026-05-16 | CMP748 | PTY → PUJ | May 16, 19:15 UTC | May 17, 18:15 UTC | 23h 0m |
| 2026-05-16 | CMP267 | SDQ → PTY | May 16, 13:05 UTC | May 16, 22:25 UTC | 9h 19m |
| 2026-05-15 | CMP733 | SLA → PTY | May 15, 07:40 UTC | May 16, 02:20 UTC | 18h 39m |
| 2026-05-14 | CMP733 | SLA → PTY | May 14, 23:40 UTC | May 15, 18:25 UTC | 18h 44m |
| 2026-05-14 | CMP733 | SLA → PTY | May 14, 17:05 UTC | May 15, 16:05 UTC | 22h 59m |
| 2026-05-14 | CMP463 | PTY → COR | May 14, 15:10 UTC | May 14, 15:20 UTC | 10m |
| 2026-05-13 | CMP463 | PTY → COR | May 13, 18:40 UTC | May 14, 15:20 UTC | 20h 40m |
| 2026-05-12 | CMP298 | PTY → SDQ | May 12, 22:55 UTC | May 13, 16:55 UTC | 18h 0m |
| 2026-05-11 | CMP712 | PTY → MGA | May 11, 03:30 UTC | May 11, 17:10 UTC | 13h 41m |
| 2026-05-10 | CMP712 | PTY → MGA | May 10, 18:35 UTC | May 11, 17:10 UTC | 22h 36m |
| 2026-05-10 | CMP298 | PTY → SDQ | May 10, 16:34 UTC | May 10, 16:44 UTC | 10m |
| 2026-05-10 | CMP297 | PTY → ASU | May 10, 01:45 UTC | May 10, 11:00 UTC | 9h 15m |
| 2026-05-09 | CMP421 | MDZ → PTY | May 9, 08:35 UTC | May 10, 02:34 UTC | 18h 0m |
| 2026-05-08 | CMP421 | MDZ → PTY | May 8, 14:35 UTC | May 9, 09:25 UTC | 18h 50m |
| 2026-05-08 | CMP420 | PTY → MDZ | May 8, 04:49 UTC | May 9, 00:25 UTC | 19h 35m |
| 2026-05-07 | CMP141 | PTY → MAO | May 7, 16:50 UTC | May 8, 14:35 UTC | 21h 45m |
| 2026-05-07 | CMP141 | PTY → MAO | May 7, 14:30 UTC | May 8, 05:05 UTC | 14h 34m |
| 2026-05-05 | CMP733 | SLA → PTY | May 5, 16:00 UTC | May 6, 08:25 UTC | 16h 25m |
| 2026-05-05 | CMP732 | PTY → SLA | May 5, 05:00 UTC | May 6, 00:40 UTC | 19h 40m |
| 2026-05-04 | CMP141 | PTY → MAO | May 4, 23:15 UTC | May 5, 18:40 UTC | 19h 25m |
| 2026-05-04 | CMP352 | PTY → PUJ | May 4, 20:55 UTC | May 5, 18:40 UTC | 21h 45m |
| 2026-05-04 | CMP471 | YYZ → PTY | May 4, 16:35 UTC | May 5, 16:06 UTC | 23h 31m |
| 2026-05-04 | CMP471 | YYZ → PTY | May 4, 12:40 UTC | May 5, 05:05 UTC | 16h 26m |
| 2026-05-03 | CMP470 | PTY → YYZ | May 3, 12:20 UTC | May 4, 04:50 UTC | 16h 30m |
| 2026-05-03 | CMP897 | ROS → PTY | May 3, 02:35 UTC | May 4, 02:30 UTC | 23h 54m |
| 2026-05-03 | CMP897 | ROS → PTY | May 3, 02:10 UTC | May 3, 13:05 UTC | 10h 54m |
| 2026-05-02 | CMP899 | PTY → ROS | May 2, 12:35 UTC | May 3, 12:30 UTC | 23h 54m |
| 2026-05-02 | CMP198 | PTY → COR | May 2, 02:50 UTC | May 3, 02:30 UTC | 23h 40m |
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.