sensors Mode-S transponder
0C21E0
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9816CMP · BOEING 737 MAX 8
- Hex
- 0C21E0
- Octal
- 03020740
- Decimal
- 795,104
- Country
- SR
- Tail
- HP-9816CMP
- Type
- B38M
- Flights observed
- 212
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 0C21E0 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 |
|---|---|---|---|
| CMP734 | Copa Airlines | 15 | 2026-06-03 |
| CMP423 | - | 10 | 2026-07-07 |
| CMP821 | - | 9 | 2026-06-29 |
| CMP424 | - | 8 | 2026-07-08 |
| CMP194 | - | 7 | 2026-07-03 |
| CMP138 | Copa Airlines | 7 | 2026-06-13 |
| CMP765 | Copa Airlines | 6 | 2026-05-29 |
| CMP704 | Copa Airlines | 6 | 2026-06-30 |
| CMP229 | - | 6 | 2026-06-24 |
| CMP477 | - | 5 | 2026-06-16 |
| CMP324 | Copa Airlines | 5 | 2026-05-27 |
| CMP228 | Copa Airlines | 5 | 2026-06-24 |
| CMP195 | - | 5 | 2026-07-03 |
| CMP149 | Copa Airlines | 5 | 2026-06-14 |
| CMP705 | - | 4 | 2026-06-30 |
| CMP496 | - | 4 | 2026-07-03 |
| CMP422 | Copa Airlines | 4 | 2026-05-22 |
| CMP857 | - | 3 | 2026-06-23 |
| CMP476 | - | 3 | 2026-06-15 |
| CMP456 | - | 3 | 2026-07-05 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | CMP315 | - | Jul 14, 08:00 UTC | Jul 14, 08:15 UTC | 15m |
| 2026-07-13 | CMP132 | - | Jul 13, 22:20 UTC | Jul 14, 05:15 UTC | 6h 55m |
| 2026-07-13 | CMP412 | BOG → PTY | Jul 13, 14:15 UTC | Jul 13, 20:15 UTC | 6h 0m |
| 2026-07-12 | CMP320 | COR → PTY | Jul 12, 10:25 UTC | Jul 13, 03:50 UTC | 17h 25m |
| 2026-07-11 | CMP354 | - | Jul 11, 22:35 UTC | Jul 12, 08:55 UTC | 10h 20m |
| 2026-07-11 | CMP265 | PTY → FLL | Jul 11, 12:10 UTC | Jul 11, 20:15 UTC | 8h 5m |
| 2026-07-10 | CMP312 | - | Jul 10, 13:00 UTC | Jul 10, 23:55 UTC | 10h 55m |
| 2026-07-09 | CMP366 | - | Jul 9, 16:30 UTC | Jul 10, 02:50 UTC | 10h 20m |
| 2026-07-08 | CMP394 | - | Jul 8, 19:30 UTC | Jul 9, 03:20 UTC | 7h 50m |
| 2026-07-08 | CMP424 | - | Jul 8, 04:35 UTC | Jul 8, 17:20 UTC | 12h 45m |
| 2026-07-07 | CMP423 | - | Jul 7, 09:30 UTC | Jul 8, 02:45 UTC | 17h 15m |
| 2026-07-07 | CMP423 | - | Jul 7, 05:30 UTC | Jul 8, 02:45 UTC | 21h 15m |
| 2026-07-07 | CMP423 | - | Jul 7, 00:05 UTC | Jul 7, 23:10 UTC | 23h 5m |
| 2026-07-06 | CMP891 | - | Jul 6, 22:05 UTC | Jul 7, 21:40 UTC | 23h 35m |
| 2026-07-06 | CMP891 | - | Jul 6, 21:10 UTC | Jul 7, 09:55 UTC | 12h 45m |
| 2026-07-06 | CMP253 | LAS → ATL | Jul 6, 07:50 UTC | Jul 6, 19:05 UTC | 11h 15m |
| 2026-07-05 | CMP456 | CUN → LAS | Jul 5, 19:15 UTC | Jul 6, 05:25 UTC | 10h 10m |
| 2026-07-05 | CMP253 | LAS → CUN | Jul 5, 07:50 UTC | Jul 5, 18:00 UTC | 10h 10m |
| 2026-07-04 | CMP456 | - | Jul 4, 13:30 UTC | Jul 5, 05:25 UTC | 15h 55m |
| 2026-07-04 | CMP389 | GUA → PTY | Jul 4, 13:10 UTC | Jul 4, 13:20 UTC | 10m |
| 2026-07-03 | CMP496 | - | Jul 3, 22:55 UTC | Jul 4, 04:45 UTC | 5h 50m |
| 2026-07-03 | CMP195 | - | Jul 3, 12:15 UTC | Jul 3, 19:55 UTC | 7h 40m |
| 2026-07-03 | CMP194 | - | Jul 3, 05:10 UTC | Jul 3, 06:00 UTC | 50m |
| 2026-07-02 | CMP471 | YYZ → PTY | Jul 2, 12:45 UTC | Jul 3, 04:40 UTC | 15h 55m |
| 2026-07-01 | CMP470 | IAD → YYZ | Jul 1, 10:40 UTC | Jul 2, 04:55 UTC | 18h 15m |
| 2026-06-30 | CMP705 | BOS → IAD | Jun 30, 20:30 UTC | Jul 1, 07:55 UTC | 11h 25m |
| 2026-06-30 | CMP704 | PTY → BOS | Jun 30, 01:25 UTC | Jun 30, 18:20 UTC | 16h 56m |
| 2026-06-29 | CMP704 | PTY → BOS | Jun 29, 22:35 UTC | Jun 30, 18:20 UTC | 19h 46m |
| 2026-06-29 | CMP821 | - | Jun 29, 08:04 UTC | Jun 30, 06:25 UTC | 22h 21m |
| 2026-06-29 | CMP821 | - | Jun 29, 07:59 UTC | Jun 30, 06:00 UTC | 22h 1m |
| 2026-06-29 | CMP821 | - | Jun 29, 00:20 UTC | Jun 29, 23:14 UTC | 22h 55m |
| 2026-06-28 | CMP451 | - | Jun 28, 09:50 UTC | Jun 28, 10:04 UTC | 15m |
| 2026-06-28 | CMP450 | - | Jun 28, 01:59 UTC | Jun 28, 02:10 UTC | 10m |
| 2026-06-27 | CMP806 | - | Jun 27, 18:04 UTC | Jun 27, 20:09 UTC | 2h 5m |
| 2026-06-27 | CMP805 | PTY → MCO | Jun 27, 13:20 UTC | Jun 27, 15:45 UTC | 2h 25m |
| 2026-06-26 | CMP805 | PTY → MCO | Jun 26, 17:00 UTC | Jun 27, 15:45 UTC | 22h 45m |
| 2026-06-26 | CMP424 | - | Jun 26, 04:30 UTC | Jun 26, 09:05 UTC | 4h 35m |
| 2026-06-25 | CMP423 | - | Jun 25, 16:45 UTC | Jun 26, 02:44 UTC | 10h 0m |
| 2026-06-24 | CMP229 | - | Jun 24, 20:44 UTC | Jun 25, 14:24 UTC | 17h 40m |
| 2026-06-24 | CMP228 | PTY → ORD | Jun 24, 14:00 UTC | Jun 24, 18:20 UTC | 4h 20m |
| 2026-06-23 | CMP228 | PTY → ORD | Jun 23, 17:25 UTC | Jun 24, 15:59 UTC | 22h 35m |
| 2026-06-23 | CMP463 | PTY → COR | Jun 23, 15:15 UTC | Jun 23, 15:24 UTC | 10m |
| 2026-06-23 | CMP857 | - | Jun 23, 08:35 UTC | Jun 23, 10:59 UTC | 2h 25m |
| 2026-06-22 | CMP195 | MEX → PTY | Jun 22, 12:05 UTC | Jun 23, 06:44 UTC | 18h 40m |
| 2026-06-21 | CMP194 | - | Jun 21, 22:40 UTC | Jun 22, 06:00 UTC | 7h 20m |
| 2026-06-21 | CMP142 | PTY → SJU | Jun 21, 20:00 UTC | Jun 21, 20:14 UTC | 15m |
| 2026-06-21 | CMP884 | SAL → PTY | Jun 21, 01:25 UTC | Jun 21, 15:30 UTC | 14h 5m |
| 2026-06-20 | CMP389 | GUA → PTY | Jun 20, 13:29 UTC | Jun 21, 01:30 UTC | 12h 0m |
| 2026-06-19 | CMP333 | - | Jun 19, 21:49 UTC | Jun 20, 04:34 UTC | 6h 45m |
| 2026-06-19 | CMP424 | - | Jun 19, 06:24 UTC | Jun 19, 18:25 UTC | 12h 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-9816CMP page for operator, model, and routing details .