sensors Mode-S transponder
0C21A4
ICAO 24-bit transponder address · allocated to Suriname
Currently assigned to HP-9802CMP · BOEING 737 MAX 8
- Hex
- 0C21A4
- Octal
- 03020644
- Decimal
- 795,044
- Country
- SR
- Tail
- HP-9802CMP
- Type
- B38M
- Flights observed
- 220
- Distinct callsigns
- 20
- Country
- SR
- Last broadcast
- Jul 25, 14:10 UTC
Last known position
Country allocation
The ICAO 24-bit address 0C21A4 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 | - | 13 | 2026-06-14 |
| CMP734 | - | 12 | 2026-06-24 |
| CMP821 | Copa Airlines | 9 | 2026-06-13 |
| CMP420 | Copa Airlines | 7 | 2026-06-02 |
| CMP476 | - | 6 | 2026-07-11 |
| CMP868 | Copa Airlines | 5 | 2026-05-14 |
| CMP769 | Copa Airlines | 5 | 2026-06-11 |
| CMP477 | - | 4 | 2026-07-12 |
| CMP451 | - | 4 | 2026-07-10 |
| CMP262 | Copa Airlines | 4 | 2026-04-23 |
| CMP253 | - | 4 | 2026-07-19 |
| CMP138 | Copa Airlines | 4 | 2026-07-20 |
| CMP9802 | - | 3 | 2026-04-17 |
| CMP867 | Copa Airlines | 3 | 2026-05-10 |
| CMP765 | Copa Airlines | 3 | 2026-04-21 |
| CMP752 | - | 3 | 2026-06-24 |
| CMP709 | - | 3 | 2026-07-10 |
| CMP708 | - | 3 | 2026-07-10 |
| CMP6484 | - | 3 | 2026-04-17 |
| CMP496 | - | 3 | 2026-07-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-25 | CMP101 | IAD → PTY | Jul 25, 10:40 UTC | Jul 25, 14:10 UTC | 3h 30m |
| 2026-07-25 | CMP404 | PTY → IAD | Jul 25, 05:15 UTC | Jul 25, 08:55 UTC | 3h 40m |
| 2026-07-23 | CMP315 | POS → PTY | Jul 23, 08:10 UTC | Jul 23, 18:05 UTC | 9h 55m |
| 2026-07-22 | CMP229 | ORD → PTY | Jul 22, 20:40 UTC | Jul 23, 05:15 UTC | 8h 35m |
| 2026-07-22 | CMP228 | PTY → ORD | Jul 22, 14:05 UTC | Jul 22, 18:35 UTC | 4h 30m |
| 2026-07-21 | CMP137 | MEX → PTY | Jul 21, 16:10 UTC | Jul 22, 00:40 UTC | 8h 30m |
| 2026-07-20 | CMP138 | PTY → MEX | Jul 20, 10:30 UTC | Jul 21, 00:40 UTC | 14h 10m |
| 2026-07-20 | CMP857 | MEX → PTY | Jul 20, 08:25 UTC | Jul 20, 10:00 UTC | 1h 35m |
| 2026-07-19 | CMP858 | - | Jul 19, 11:05 UTC | Jul 20, 06:35 UTC | 19h 30m |
| 2026-07-19 | CMP253 | - | Jul 19, 09:05 UTC | Jul 20, 06:35 UTC | 21h 30m |
| 2026-07-19 | CMP253 | - | Jul 19, 07:50 UTC | Jul 20, 06:35 UTC | 22h 45m |
| 2026-07-18 | CMP456 | PTY → LAS | Jul 18, 20:10 UTC | Jul 19, 05:35 UTC | 9h 25m |
| 2026-07-18 | CMP389 | GUA → PTY | Jul 18, 13:25 UTC | Jul 18, 18:35 UTC | 5h 10m |
| 2026-07-18 | CMP496 | - | Jul 18, 03:35 UTC | Jul 18, 04:50 UTC | 1h 15m |
| 2026-07-17 | CMP156 | - | Jul 17, 21:25 UTC | Jul 17, 21:34 UTC | 10m |
| 2026-07-17 | CMP894 | JFK → PTY | Jul 17, 18:00 UTC | Jul 17, 18:10 UTC | 10m |
| 2026-07-17 | CMP892 | PTY → ADZ | Jul 17, 16:34 UTC | Jul 17, 16:40 UTC | 5m |
| 2026-07-17 | CMP789 | - | Jul 17, 08:04 UTC | Jul 17, 13:25 UTC | 5h 20m |
| 2026-07-16 | CMP817 | IAD → PTY | Jul 16, 11:05 UTC | Jul 17, 06:45 UTC | 19h 40m |
| 2026-07-16 | CMP817 | IAD → PTY | Jul 16, 10:40 UTC | Jul 17, 06:45 UTC | 20h 5m |
| 2026-07-15 | CMP101 | - | Jul 15, 11:05 UTC | Jul 16, 05:55 UTC | 18h 50m |
| 2026-07-15 | CMP101 | IAD → IAD | Jul 15, 10:50 UTC | Jul 16, 05:55 UTC | 19h 5m |
| 2026-07-15 | CMP404 | - | Jul 15, 05:30 UTC | Jul 15, 08:55 UTC | 3h 25m |
| 2026-07-13 | CMP128 | - | Jul 13, 20:15 UTC | Jul 13, 20:25 UTC | 10m |
| 2026-07-12 | CMP464 | - | Jul 12, 23:05 UTC | Jul 13, 20:25 UTC | 21h 20m |
| 2026-07-12 | CMP763 | - | Jul 12, 14:20 UTC | Jul 12, 14:35 UTC | 15m |
| 2026-07-12 | CMP787 | - | Jul 12, 12:40 UTC | Jul 12, 13:01 UTC | 20m |
| 2026-07-12 | CMP477 | - | Jul 12, 05:05 UTC | Jul 12, 09:35 UTC | 4h 30m |
| 2026-07-11 | CMP476 | BOG → DEN | Jul 11, 15:05 UTC | Jul 11, 23:35 UTC | 8h 30m |
| 2026-07-10 | CMP709 | - | Jul 10, 20:55 UTC | Jul 11, 05:20 UTC | 8h 25m |
| 2026-07-10 | CMP708 | - | Jul 10, 15:35 UTC | Jul 10, 19:10 UTC | 3h 35m |
| 2026-07-10 | CMP451 | - | Jul 10, 09:35 UTC | Jul 10, 09:45 UTC | 10m |
| 2026-07-10 | CMP450 | - | Jul 10, 02:10 UTC | Jul 10, 02:20 UTC | 10m |
| 2026-07-09 | CMP195 | - | Jul 9, 12:20 UTC | Jul 9, 14:50 UTC | 2h 30m |
| 2026-07-08 | CMP194 | - | Jul 8, 20:30 UTC | Jul 9, 06:05 UTC | 9h 35m |
| 2026-07-08 | CMP466 | PTY → RDU | Jul 8, 11:10 UTC | Jul 8, 18:05 UTC | 6h 55m |
| 2026-07-07 | CMP477 | - | Jul 7, 05:00 UTC | Jul 7, 09:40 UTC | 4h 40m |
| 2026-07-06 | CMP476 | - | Jul 6, 14:20 UTC | Jul 7, 00:05 UTC | 9h 45m |
| 2026-07-06 | CMP476 | - | Jul 6, 01:35 UTC | Jul 7, 00:05 UTC | 22h 30m |
| 2026-07-05 | CMP476 | - | Jul 5, 21:05 UTC | Jul 6, 20:35 UTC | 23h 30m |
| 2026-07-05 | CMP884 | - | Jul 5, 20:45 UTC | Jul 6, 18:55 UTC | 22h 10m |
| 2026-07-05 | CMP286 | PTY → SAP | Jul 5, 17:30 UTC | Jul 6, 14:45 UTC | 21h 15m |
| 2026-07-05 | CMP286 | PTY → SAP | Jul 5, 13:05 UTC | Jul 6, 01:45 UTC | 12h 40m |
| 2026-07-04 | CMP897 | - | Jul 4, 08:15 UTC | Jul 4, 12:40 UTC | 4h 25m |
| 2026-07-03 | CMP899 | - | Jul 3, 18:30 UTC | Jul 4, 06:35 UTC | 12h 5m |
| 2026-07-02 | CMP474 | - | Jul 2, 20:25 UTC | Jul 3, 03:40 UTC | 7h 15m |
| 2026-07-02 | CMP737 | - | Jul 2, 10:20 UTC | Jul 2, 18:45 UTC | 8h 25m |
| 2026-07-02 | CMP804 | - | Jul 2, 01:00 UTC | Jul 2, 04:45 UTC | 3h 45m |
| 2026-06-30 | CMP471 | YYZ → PTY | Jun 30, 12:25 UTC | Jun 30, 23:10 UTC | 10h 45m |
| 2026-06-29 | CMP470 | - | Jun 29, 09:05 UTC | Jun 30, 04:55 UTC | 19h 51m |
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-9802CMP page for operator, model, and routing details .