sensors Mode-S transponder
0C21B7
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9809CMP · BOEING 737 MAX 8
- Hex
- 0C21B7
- Octal
- 03020667
- Decimal
- 795,063
- Country
- SR
- Tail
- HP-9809CMP
- Type
- B38M
- Flights observed
- 131
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21B7 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 |
|---|---|---|---|
| CMP820 | Copa Airlines | 11 | 2026-04-29 |
| CMP857 | Copa Airlines | 6 | 2026-05-26 |
| CMP752 | Copa Airlines | 6 | 2026-05-18 |
| CMP709 | Copa Airlines | 6 | 2026-05-25 |
| CMP732 | Copa Airlines | 5 | 2026-05-26 |
| CMP708 | Copa Airlines | 5 | 2026-05-25 |
| CMP821 | Copa Airlines | 4 | 2026-04-29 |
| CMP753 | Copa Airlines | 4 | 2026-05-19 |
| CMP734 | Copa Airlines | 4 | 2026-04-30 |
| CMP194 | Copa Airlines | 4 | 2026-05-28 |
| CMP456 | Copa Airlines | 3 | 2026-05-04 |
| CMP451 | Copa Airlines | 3 | 2026-05-29 |
| CMP450 | Copa Airlines | 3 | 2026-05-29 |
| CMP446 | Copa Airlines | 3 | 2026-05-02 |
| CMP317 | Copa Airlines | 3 | 2026-05-26 |
| CMP228 | - | 3 | 2026-04-19 |
| CMP207 | Copa Airlines | 3 | 2026-05-19 |
| CMP880 | Copa Airlines | 2 | 2026-04-28 |
| CMP858 | Copa Airlines | 2 | 2026-05-04 |
| CMP715 | Copa Airlines | 2 | 2026-04-20 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | CMP315 | POS → PTY | May 30, 08:05 UTC | May 30, 15:15 UTC | 7h 10m |
| 2026-05-29 | CMP314 | PTY → POS | May 29, 18:20 UTC | May 30, 05:25 UTC | 11h 5m |
| 2026-05-29 | CMP451 | SJU → PTY | May 29, 09:40 UTC | May 29, 09:50 UTC | 10m |
| 2026-05-29 | CMP450 | PTY → SJU | May 29, 02:00 UTC | May 29, 02:15 UTC | 15m |
| 2026-05-28 | CMP195 | MEX → PTY | May 28, 12:15 UTC | May 28, 20:55 UTC | 8h 40m |
| 2026-05-28 | CMP194 | PTY → MEX | May 28, 05:20 UTC | May 28, 06:05 UTC | 45m |
| 2026-05-27 | CMP194 | PTY → MEX | May 27, 19:20 UTC | May 28, 04:40 UTC | 9h 20m |
| 2026-05-27 | CMP194 | PTY → MEX | May 27, 07:50 UTC | May 28, 04:40 UTC | 20h 50m |
| 2026-05-27 | CMP194 | PTY → MEX | May 27, 07:40 UTC | May 28, 04:40 UTC | 21h 0m |
| 2026-05-26 | CMP732 | PTY → SLA | May 26, 23:49 UTC | May 27, 22:25 UTC | 22h 35m |
| 2026-05-26 | CMP317 | CUN → PTY | May 26, 17:30 UTC | May 27, 08:25 UTC | 14h 56m |
| 2026-05-26 | CMP857 | MEX → PTY | May 26, 08:30 UTC | May 26, 15:39 UTC | 7h 10m |
| 2026-05-25 | CMP709 | BWI → PTY | May 25, 21:30 UTC | May 26, 06:44 UTC | 9h 15m |
| 2026-05-25 | CMP708 | PTY → BWI | May 25, 02:10 UTC | May 25, 19:35 UTC | 17h 24m |
| 2026-05-24 | CMP708 | PTY → BWI | May 24, 17:50 UTC | May 25, 17:45 UTC | 23h 55m |
| 2026-05-24 | CMP137 | MEX → PTY | May 24, 16:20 UTC | May 25, 10:40 UTC | 18h 20m |
| 2026-05-24 | CMP188 | PTY → MEX | May 24, 03:10 UTC | May 24, 04:00 UTC | 50m |
| 2026-05-23 | CMP188 | PTY → MEX | May 23, 21:05 UTC | May 24, 02:35 UTC | 5h 30m |
| 2026-05-23 | CMP709 | BWI → PTY | May 23, 01:55 UTC | May 24, 01:45 UTC | 23h 50m |
| 2026-05-22 | CMP709 | BWI → PTY | May 22, 23:50 UTC | May 23, 21:05 UTC | 21h 15m |
| 2026-05-22 | CMP709 | BWI → PTY | May 22, 21:50 UTC | May 23, 21:05 UTC | 23h 15m |
| 2026-05-22 | CMP709 | BWI → PTY | May 22, 21:05 UTC | May 23, 02:20 UTC | 5h 15m |
| 2026-05-21 | CMP708 | PTY → BWI | May 21, 23:50 UTC | May 22, 19:15 UTC | 19h 25m |
| 2026-05-21 | CMP708 | PTY → BWI | May 21, 23:15 UTC | May 22, 19:15 UTC | 20h 0m |
| 2026-05-21 | CMP421 | MDZ → PTY | May 21, 18:00 UTC | May 22, 17:45 UTC | 23h 45m |
| 2026-05-21 | CMP123 | CUN → PTY | May 21, 17:05 UTC | May 22, 15:40 UTC | 22h 35m |
| 2026-05-20 | CMP122 | PTY → CUN | May 20, 23:55 UTC | May 21, 15:10 UTC | 15h 15m |
| 2026-05-20 | CMP206 | ASU → PTY | May 20, 08:00 UTC | May 21, 07:45 UTC | 23h 45m |
| 2026-05-20 | CMP206 | ASU → PTY | May 20, 04:55 UTC | May 21, 00:40 UTC | 19h 45m |
| 2026-05-19 | CMP207 | PTY → ASU | May 19, 10:10 UTC | May 20, 02:40 UTC | 16h 30m |
| 2026-05-19 | CMP207 | PTY → ASU | May 19, 05:50 UTC | May 20, 02:40 UTC | 20h 50m |
| 2026-05-19 | CMP207 | PTY → ASU | May 19, 05:25 UTC | May 20, 02:40 UTC | 21h 15m |
| 2026-05-19 | CMP753 | SSA → PTY | May 19, 01:50 UTC | May 20, 00:05 UTC | 22h 15m |
| 2026-05-19 | CMP753 | SSA → PTY | May 19, 01:10 UTC | May 19, 23:45 UTC | 22h 35m |
| 2026-05-18 | CMP752 | PTY → SSA | May 18, 21:50 UTC | May 19, 18:50 UTC | 21h 0m |
| 2026-05-18 | CMP752 | PTY → SSA | May 18, 21:35 UTC | May 19, 18:50 UTC | 21h 15m |
| 2026-05-18 | CMP752 | PTY → SSA | May 18, 18:00 UTC | May 19, 14:20 UTC | 20h 19m |
| 2026-05-18 | CMP752 | PTY → SSA | May 18, 13:50 UTC | May 19, 10:25 UTC | 20h 34m |
| 2026-05-17 | CMP433 | MIA → PTY | May 17, 12:45 UTC | May 17, 14:30 UTC | 1h 45m |
| 2026-05-16 | CMP441 | PTY → MIA | May 16, 14:16 UTC | May 17, 02:30 UTC | 12h 15m |
| 2026-05-15 | CMP384 | GUA → PTY | May 15, 19:50 UTC | May 16, 14:25 UTC | 18h 36m |
| 2026-05-15 | CMP384 | GUA → PTY | May 15, 19:35 UTC | May 16, 14:25 UTC | 18h 51m |
| 2026-05-15 | CMP424 | FLN → PTY | May 15, 06:40 UTC | May 15, 17:50 UTC | 11h 9m |
| 2026-05-14 | CMP423 | YUL → PTY | May 14, 16:30 UTC | May 15, 01:15 UTC | 8h 45m |
| 2026-05-13 | CMP445 | MCO → PTY | May 13, 22:20 UTC | May 14, 14:35 UTC | 16h 15m |
| 2026-05-13 | CMP478 | PTY → MCO | May 13, 07:45 UTC | May 13, 20:15 UTC | 12h 30m |
| 2026-05-13 | CMP478 | PTY → MCO | May 13, 00:30 UTC | May 13, 20:15 UTC | 19h 45m |
| 2026-05-12 | CMP732 | PTY → SLA | May 12, 13:51 UTC | May 13, 08:20 UTC | 18h 30m |
| 2026-05-12 | CMP732 | PTY → SLA | May 12, 13:35 UTC | May 13, 08:20 UTC | 18h 45m |
| 2026-05-10 | CMP710 | MGA → PTY | May 10, 03:40 UTC | May 10, 09:40 UTC | 6h 0m |
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-9809CMP page for operator, model, and routing details .