sensors Mode-S transponder

0C2161

ICAO 24-bit transponder address · allocated to Suriname

Currently assigned to HP-9916CMP · BOEING 737 MAX 9

Hex
0C2161
Octal
03020541
Decimal
794,977
Country
SR
Tail
HP-9916CMP
Type
B39M
No current signal · last broadcast Jul 26, 20:35 UTC
Flights observed
225
Distinct callsigns
20
Country
SR
Last broadcast
Jul 26, 20:35 UTC

Last known position

Most recent position reported by Mode-S 0C2161.

Country allocation

The ICAO 24-bit address 0C2161 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
CMP362 - 18 2026-06-26
CMP167 - 15 2026-07-06
CMP809 Copa Airlines 14 2026-07-13
CMP360 Copa Airlines 12 2026-06-25
CMP873 - 9 2026-07-04
CMP704 Copa Airlines 9 2026-07-22
CMP812 - 8 2026-07-13
CMP346 - 7 2026-07-14
CMP168 - 7 2026-07-07
CMP382 Copa Airlines 6 2026-06-13
CMP701 Copa Airlines 5 2026-07-17
CMP486 - 5 2026-06-27
CMP409 - 5 2026-07-16
CMP215 Copa Airlines 5 2026-07-23
CMP124 - 5 2026-07-12
CMP872 - 4 2026-07-05
CMP705 - 4 2026-07-22
CMP328 - 4 2026-06-27
CMP283 - 4 2026-06-30
CMP702 - 3 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CMP306 LAX → PTY Jul 26, 09:25 UTCJul 26, 20:35 UTC11h 10m
2026-07-25 CMP302 PTY → LAX Jul 25, 19:05 UTCJul 26, 06:10 UTC11h 5m
2026-07-24 CMP278 EZE → PTY Jul 24, 19:15 UTCJul 25, 05:50 UTC10h 35m
2026-07-24 CMP278 EZE → PTY Jul 24, 15:15 UTCJul 24, 16:15 UTC1h 0m
2026-07-23 CMP215 GIG → PTY Jul 23, 14:00 UTCJul 24, 08:05 UTC18h 5m
2026-07-22 CMP705 - Jul 22, 21:00 UTCJul 23, 10:50 UTC13h 50m
2026-07-22 CMP704 PTY → BOS Jul 22, 14:15 UTCJul 22, 18:55 UTC4h 40m
2026-07-21 CMP704 PTY → BOS Jul 21, 19:05 UTCJul 22, 18:15 UTC23h 10m
2026-07-21 CMP215 GIG → PTY Jul 21, 15:35 UTCJul 22, 14:15 UTC22h 40m
2026-07-21 CMP215 GIG → PTY Jul 21, 13:40 UTCJul 21, 19:35 UTC5h 55m
2026-07-21 CMP216 PTY → GIG Jul 21, 04:40 UTCJul 21, 10:30 UTC5h 50m
2026-07-19 CMP498 SCL → PTY Jul 19, 18:50 UTCJul 19, 19:40 UTC50m
2026-07-18 CMP444 - Jul 18, 23:05 UTCJul 19, 09:00 UTC9h 55m
2026-07-18 CMP443 PTY → IAD Jul 18, 15:25 UTCJul 18, 19:05 UTC3h 40m
2026-07-18 CMP702 - Jul 18, 06:15 UTCJul 18, 11:45 UTC5h 30m
2026-07-17 CMP701 PTY → GRU Jul 17, 07:44 UTCJul 18, 02:14 UTC18h 30m
2026-07-17 CMP701 PTY → GRU Jul 17, 04:20 UTCJul 18, 02:14 UTC21h 55m
2026-07-17 CMP701 PTY → GRU Jul 17, 03:34 UTCJul 18, 02:14 UTC22h 40m
2026-07-16 CMP219 - Jul 16, 06:30 UTCJul 17, 01:15 UTC18h 45m
2026-07-16 CMP409 - Jul 16, 04:20 UTCJul 17, 01:15 UTC20h 55m
2026-07-16 CMP409 - Jul 16, 03:35 UTCJul 17, 01:15 UTC21h 40m
2026-07-15 CMP408 EZE → SFO Jul 15, 08:35 UTCJul 16, 00:50 UTC16h 15m
2026-07-14 CMP346 - Jul 14, 18:55 UTCJul 15, 07:05 UTC12h 9m
2026-07-13 CMP812 - Jul 13, 19:50 UTCJul 14, 05:55 UTC10h 5m
2026-07-13 CMP809 PTY → JFK Jul 13, 13:45 UTCJul 13, 17:35 UTC3h 50m
2026-07-12 CMP809 PTY → JFK Jul 12, 19:55 UTCJul 13, 17:35 UTC21h 40m
2026-07-12 CMP809 PTY → JFK Jul 12, 17:20 UTCJul 13, 16:15 UTC22h 55m
2026-07-12 CMP124 - Jul 12, 06:10 UTCJul 12, 19:55 UTC13h 45m
2026-07-11 CMP369 MVD → PTY Jul 11, 12:50 UTCJul 12, 04:35 UTC15h 45m
2026-07-10 CMP368 - Jul 10, 19:25 UTCJul 11, 09:35 UTC14h 10m
2026-07-09 CMP812 - Jul 9, 22:20 UTCJul 10, 19:30 UTC21h 10m
2026-07-09 CMP812 - Jul 9, 20:20 UTCJul 10, 19:30 UTC23h 10m
2026-07-09 CMP812 - Jul 9, 20:05 UTCJul 10, 00:15 UTC4h 10m
2026-07-08 CMP809 PTY → JFK Jul 8, 23:05 UTCJul 9, 17:50 UTC18h 45m
2026-07-08 CMP809 PTY → JFK Jul 8, 21:40 UTCJul 9, 17:50 UTC20h 10m
2026-07-08 CMP811 - Jul 8, 08:05 UTCJul 8, 18:45 UTC10h 40m
2026-07-07 CMP810 - Jul 7, 10:20 UTCJul 8, 06:00 UTC19h 40m
2026-07-07 CMP810 - Jul 7, 09:55 UTCJul 8, 06:00 UTC20h 5m
2026-07-07 CMP168 - Jul 7, 05:35 UTCJul 8, 02:15 UTC20h 40m
2026-07-06 CMP167 - Jul 6, 16:25 UTCJul 7, 03:50 UTC11h 25m
2026-07-06 CMP432 - Jul 6, 03:40 UTCJul 6, 05:35 UTC1h 55m
2026-07-05 CMP872 - Jul 5, 04:55 UTCJul 5, 09:20 UTC4h 25m
2026-07-04 CMP873 - Jul 4, 08:20 UTCJul 5, 03:30 UTC19h 10m
2026-07-04 CMP702 - Jul 4, 06:30 UTCJul 5, 03:30 UTC21h 0m
2026-07-03 CMP701 - Jul 3, 08:35 UTCJul 3, 23:30 UTC14h 55m
2026-07-02 CMP346 - Jul 2, 12:30 UTCJul 3, 07:00 UTC18h 30m
2026-07-02 CMP346 - Jul 2, 10:20 UTCJul 3, 07:00 UTC20h 40m
2026-07-02 CMP346 - Jul 2, 08:20 UTCJul 3, 07:00 UTC22h 40m
2026-07-01 CMP743 - Jul 1, 14:35 UTCJul 2, 06:35 UTC16h 0m
2026-06-30 CMP283 - Jun 30, 18:20 UTCJul 1, 12:50 UTC18h 30m

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-9916CMP page for operator, model, and routing details .

Mode-S 0C2161 frequently asked

What is Mode-S code 0C2161?
0C2161 is an ICAO 24-bit transponder address. Allocated to Suriname. Assigned to HP-9916CMP.
Where is Mode-S 0C2161 registered?
Mode-S code 0C2161 is allocated to Suriname (SR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 0C2161 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 0C2161, octal 03020541, decimal 794,977.
What flights does 0C2161 operate?
Mode-S 0C2161 has broadcast 20 distinct callsigns, including CMP362, CMP167, CMP809, CMP360, CMP873.