sensors Mode-S transponder
0C21A8
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9806CMP · BOEING 737 MAX 8
- Hex
- 0C21A8
- Octal
- 03020650
- Decimal
- 795,048
- Country
- SR
- Tail
- HP-9806CMP
- Type
- B38M
- Flights observed
- 116
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21A8 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 |
|---|---|---|---|
| CMP821 | Copa Airlines | 11 | 2026-05-26 |
| CMP820 | Copa Airlines | 10 | 2026-05-27 |
| CMP734 | Copa Airlines | 5 | 2026-05-24 |
| CMP420 | Copa Airlines | 5 | 2026-05-12 |
| CMP122 | Copa Airlines | 4 | 2026-05-12 |
| CMP862 | Copa Airlines | 3 | 2026-05-11 |
| CMP424 | Copa Airlines | 3 | 2026-05-01 |
| CMP228 | Copa Airlines | 3 | 2026-05-21 |
| CMP138 | Copa Airlines | 3 | 2026-05-27 |
| CMP123 | Copa Airlines | 3 | 2026-05-13 |
| CMP102 | Copa Airlines | 3 | 2026-05-03 |
| CM424 | - | 3 | 2026-04-15 |
| CMP765 | Copa Airlines | 2 | 2026-05-19 |
| CMP477 | Copa Airlines | 2 | 2026-04-26 |
| CMP476 | Copa Airlines | 2 | 2026-04-25 |
| CMP441 | Copa Airlines | 2 | 2026-05-07 |
| CMP423 | Copa Airlines | 2 | 2026-04-15 |
| CMP421 | Copa Airlines | 2 | 2026-04-17 |
| CMP263 | Copa Airlines | 2 | 2026-05-02 |
| CMP207 | Copa Airlines | 2 | 2026-05-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | CMP389 | GUA → PTY | May 30, 13:25 UTC | May 30, 14:30 UTC | 1h 5m |
| 2026-05-29 | CMP496 | PTY → GUA | May 29, 23:05 UTC | May 30, 04:25 UTC | 5h 20m |
| 2026-05-29 | CMP899 | PTY → ROS | May 29, 02:15 UTC | May 29, 19:50 UTC | 17h 35m |
| 2026-05-28 | CMP760 | LIM → PTY | May 28, 19:05 UTC | May 29, 12:45 UTC | 17h 40m |
| 2026-05-28 | CMP149 | MEX → PTY | May 28, 07:35 UTC | May 28, 17:00 UTC | 9h 25m |
| 2026-05-27 | CMP138 | PTY → MEX | May 27, 06:04 UTC | May 28, 00:50 UTC | 18h 45m |
| 2026-05-27 | CMP138 | PTY → MEX | May 27, 05:14 UTC | May 28, 00:50 UTC | 19h 35m |
| 2026-05-27 | CMP138 | PTY → MEX | May 27, 02:04 UTC | May 28, 00:50 UTC | 22h 45m |
| 2026-05-27 | CMP820 | POA → PTY | May 27, 01:09 UTC | May 28, 00:00 UTC | 22h 51m |
| 2026-05-26 | CMP821 | PTY → POA | May 26, 14:05 UTC | May 27, 09:25 UTC | 19h 21m |
| 2026-05-26 | CMP821 | PTY → POA | May 26, 13:45 UTC | May 27, 09:25 UTC | 19h 41m |
| 2026-05-26 | CMP820 | POA → PTY | May 26, 08:50 UTC | May 27, 06:15 UTC | 21h 25m |
| 2026-05-26 | CMP820 | POA → PTY | May 26, 06:04 UTC | May 27, 05:59 UTC | 23h 55m |
| 2026-05-26 | CMP821 | PTY → POA | May 26, 02:04 UTC | May 27, 01:59 UTC | 23h 55m |
| 2026-05-26 | CMP821 | PTY → POA | May 26, 01:20 UTC | May 26, 23:05 UTC | 21h 45m |
| 2026-05-25 | CMP820 | POA → PTY | May 25, 22:30 UTC | May 26, 18:19 UTC | 19h 50m |
| 2026-05-25 | CMP821 | PTY → POA | May 25, 21:30 UTC | May 26, 18:19 UTC | 20h 50m |
| 2026-05-25 | CMP821 | PTY → POA | May 25, 10:05 UTC | May 26, 09:29 UTC | 23h 25m |
| 2026-05-25 | CMP821 | PTY → POA | May 25, 08:55 UTC | May 26, 06:20 UTC | 21h 24m |
| 2026-05-25 | CMP821 | PTY → POA | May 25, 06:25 UTC | May 26, 05:59 UTC | 23h 35m |
| 2026-05-24 | CMP734 | CNF → PTY | May 24, 17:55 UTC | May 25, 10:10 UTC | 16h 15m |
| 2026-05-24 | CMP734 | CNF → PTY | May 24, 14:05 UTC | May 25, 10:10 UTC | 20h 5m |
| 2026-05-24 | CMP734 | CNF → PTY | May 24, 13:55 UTC | May 25, 10:10 UTC | 20h 15m |
| 2026-05-24 | CMP206 | ASU → PTY | May 24, 08:10 UTC | May 25, 07:00 UTC | 22h 50m |
| 2026-05-24 | CMP206 | ASU → PTY | May 24, 05:05 UTC | May 24, 18:15 UTC | 13h 10m |
| 2026-05-23 | CMP207 | PTY → ASU | May 23, 11:05 UTC | May 24, 02:45 UTC | 15h 41m |
| 2026-05-23 | CMP207 | PTY → ASU | May 23, 05:20 UTC | May 24, 02:45 UTC | 21h 26m |
| 2026-05-22 | CMP262 | CUN → PTY | May 22, 16:30 UTC | May 23, 11:20 UTC | 18h 49m |
| 2026-05-21 | CMP229 | ORD → PTY | May 21, 22:25 UTC | May 22, 14:50 UTC | 16h 25m |
| 2026-05-21 | CMP228 | PTY → ORD | May 21, 14:10 UTC | May 21, 18:50 UTC | 4h 40m |
| 2026-05-20 | CMP228 | PTY → ORD | May 20, 20:05 UTC | May 21, 18:50 UTC | 22h 45m |
| 2026-05-20 | CMP228 | PTY → ORD | May 20, 18:05 UTC | May 21, 18:00 UTC | 23h 55m |
| 2026-05-19 | CMP765 | PTY → CNF | May 19, 20:45 UTC | May 20, 15:50 UTC | 19h 6m |
| 2026-05-18 | CMP326 | CUN → PTY | May 18, 19:25 UTC | May 18, 20:50 UTC | 1h 25m |
| 2026-05-18 | CMP113 | PTY → CUN | May 18, 09:40 UTC | May 18, 17:55 UTC | 8h 15m |
| 2026-05-18 | CMP450 | PTY → SJU | May 18, 02:05 UTC | May 18, 02:20 UTC | 15m |
| 2026-05-17 | CMP871 | SAL → PTY | May 17, 13:15 UTC | May 17, 20:50 UTC | 7h 35m |
| 2026-05-16 | CMP868 | MCO → PTY | May 16, 19:40 UTC | May 17, 02:25 UTC | 6h 45m |
| 2026-05-16 | CMP867 | PTY → MCO | May 16, 15:05 UTC | May 16, 17:35 UTC | 2h 30m |
| 2026-05-15 | CMP9806 | - | May 15, 13:55 UTC | May 15, 14:35 UTC | 40m |
| 2026-05-13 | CMP123 | CUN → PTY | May 13, 17:15 UTC | May 14, 00:35 UTC | 7h 20m |
| 2026-05-12 | CMP122 | PTY → CUN | May 12, 23:35 UTC | May 13, 15:50 UTC | 16h 15m |
| 2026-05-12 | CMP122 | PTY → CUN | May 12, 18:05 UTC | May 13, 15:50 UTC | 21h 45m |
| 2026-05-12 | CMP420 | PTY → MDZ | May 12, 14:05 UTC | May 13, 09:40 UTC | 19h 35m |
| 2026-05-12 | CMP420 | PTY → MDZ | May 12, 13:55 UTC | May 13, 09:40 UTC | 19h 45m |
| 2026-05-12 | CMP420 | PTY → MDZ | May 12, 08:55 UTC | May 13, 00:35 UTC | 15h 40m |
| 2026-05-11 | CMP317 | CUN → PTY | May 11, 22:05 UTC | May 12, 18:35 UTC | 20h 30m |
| 2026-05-11 | CMP459 | MCO → PTY | May 11, 21:15 UTC | May 12, 18:35 UTC | 21h 20m |
| 2026-05-11 | CMP862 | PTY → MCO | May 11, 15:35 UTC | May 11, 17:50 UTC | 2h 16m |
| 2026-05-10 | CMP862 | PTY → MCO | May 10, 20:25 UTC | May 11, 17:50 UTC | 21h 26m |
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-9806CMP page for operator, model, and routing details .