Apparatus

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sensors Mode-S transponder

495243

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-TRC · DE HAVILLAND DHC-8-200 Dash 8

Hex
495243
Octal
22251103
Decimal
4,805,187
Country
PT
Tail
CS-TRC
Type
DH8B
No current signal · last broadcast Jul 26, 20:15 UTC
Flights observed
158
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 20:15 UTC

Last known position

Most recent position reported by Mode-S 495243.

Country allocation

The ICAO 24-bit address 495243 falls within the block assigned to Portugal (PT) by ICAO Annex 10, Volume III. Every aircraft registered in Portugal 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
SAT103 SATA Air Acores 14 2026-07-26
SAT105 SATA Air Acores 12 2026-07-26
SAT403 - 11 2026-07-15
SAT1109 SATA Air Acores 10 2026-07-26
SAT577 SATA Air Acores 8 2026-07-24
SAT104 SATA Air Acores 8 2026-07-26
SAT419 SATA Air Acores 7 2026-07-26
SAT102 SATA Air Acores 7 2026-07-25
SAT1108 SATA Air Acores 6 2026-07-26
SAT7104 SATA Air Acores 4 2026-05-07
SAT575 - 4 2026-07-14
SAT407 SATA Air Acores 4 2026-07-25
SAT2103 SATA Air Acores 4 2026-05-29
SAT101 SATA Air Acores 4 2026-05-26
SAT7105 SATA Air Acores 3 2026-04-30
SAT503 - 3 2026-05-26
SAT437 SATA Air Acores 3 2026-05-28
SAT409 SATA Air Acores 3 2026-05-19
SAT1409 SATA Air Acores 3 2026-05-29
SAT545 SATA Air Acores 2 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SAT1108 SMA → PDL Jul 26, 20:05 UTCJul 26, 20:15 UTC10m
2026-07-26 SAT1109 PDL → SMA Jul 26, 19:05 UTCJul 26, 19:15 UTC10m
2026-07-26 SAT104 SMA → PDL Jul 26, 18:10 UTCJul 26, 18:20 UTC10m
2026-07-26 SAT105 PDL → SMA Jul 26, 17:20 UTCJul 26, 17:30 UTC10m
2026-07-26 SAT103 PDL → SMA Jul 26, 13:00 UTCJul 26, 13:10 UTC10m
2026-07-26 SAT419 GRW → PDL Jul 26, 11:50 UTCJul 26, 12:00 UTC10m
2026-07-25 SAT1108 SMA → PDL Jul 25, 20:15 UTCJul 25, 20:25 UTC10m
2026-07-25 SAT1109 PDL → SMA Jul 25, 19:15 UTCJul 25, 19:25 UTC10m
2026-07-25 SAT104 SMA → PDL Jul 25, 18:15 UTCJul 25, 18:25 UTC10m
2026-07-25 SAT435 PIX → PDL Jul 25, 16:20 UTCJul 25, 16:30 UTC10m
2026-07-25 SAT102 SMA → PDL Jul 25, 13:25 UTCJul 25, 13:35 UTC10m
2026-07-25 SAT103 PDL → SMA Jul 25, 12:25 UTCJul 25, 12:35 UTC10m
2026-07-25 SAT407 TER → PDL Jul 25, 00:10 UTCJul 25, 00:20 UTC10m
2026-07-24 SAT1445 HOR → PDL Jul 24, 21:45 UTCJul 24, 21:55 UTC10m
2026-07-24 SAT577 HOR → PDL Jul 24, 18:35 UTCJul 24, 18:45 UTC10m
2026-07-23 SAT1109 - Jul 23, 19:30 UTCJul 23, 19:40 UTC10m
2026-07-23 SAT1495 TER → PDL Jul 23, 08:25 UTCJul 23, 08:35 UTC10m
2026-07-19 SAT1109 - Jul 19, 19:20 UTCJul 19, 19:30 UTC10m
2026-07-19 SAT105 - Jul 19, 17:35 UTCJul 19, 17:45 UTC10m
2026-07-19 SAT102 SMA → PDL Jul 19, 13:55 UTCJul 19, 14:05 UTC10m
2026-07-19 SAT103 PDL → SMA Jul 19, 12:50 UTCJul 19, 13:05 UTC15m
2026-07-18 SAT3507 - Jul 18, 20:55 UTCJul 18, 21:05 UTC10m
2026-07-18 SAT2505 FLW → PDL Jul 18, 17:25 UTCJul 18, 17:35 UTC10m
2026-07-18 SAT102 SMA → PDL Jul 18, 13:25 UTCJul 18, 13:35 UTC10m
2026-07-18 SAT103 PDL → SMA Jul 18, 12:25 UTCJul 18, 12:35 UTC10m
2026-07-17 SAT1108 - Jul 17, 21:15 UTCJul 17, 21:25 UTC10m
2026-07-17 SAT1109 - Jul 17, 20:10 UTCJul 17, 20:20 UTC10m
2026-07-17 SAT105 - Jul 17, 18:00 UTCJul 17, 18:10 UTC10m
2026-07-17 SAT429 SJZ → PDL Jul 17, 16:59 UTCJul 17, 17:09 UTC10m
2026-07-17 SAT103 PDL → SMA Jul 17, 13:10 UTCJul 17, 13:20 UTC10m
2026-07-17 SAT419 - Jul 17, 11:55 UTCJul 17, 12:04 UTC10m
2026-07-15 SAT1108 - Jul 15, 21:50 UTCJul 15, 22:00 UTC10m
2026-07-15 SAT1109 - Jul 15, 20:45 UTCJul 15, 20:55 UTC10m
2026-07-15 SAT104 - Jul 15, 19:55 UTCJul 15, 20:05 UTC10m
2026-07-15 SAT105 - Jul 15, 19:00 UTCJul 15, 19:10 UTC10m
2026-07-15 SAT103 PDL → SMA Jul 15, 14:25 UTCJul 15, 14:35 UTC10m
2026-07-15 SAT1505 - Jul 15, 13:05 UTCJul 15, 13:15 UTC10m
2026-07-15 SAT403 - Jul 15, 08:55 UTCJul 15, 09:05 UTC10m
2026-07-14 SAT1439 - Jul 14, 21:10 UTCJul 14, 21:20 UTC10m
2026-07-14 SAT575 - Jul 14, 18:30 UTCJul 14, 18:40 UTC10m
2026-07-14 SAT403 - Jul 14, 09:05 UTCJul 14, 09:15 UTC10m
2026-07-13 SAT1108 - Jul 13, 21:10 UTCJul 13, 21:20 UTC10m
2026-07-13 SAT1109 - Jul 13, 20:15 UTCJul 13, 20:25 UTC10m
2026-07-13 SAT105 - Jul 13, 18:40 UTCJul 13, 18:50 UTC10m
2026-07-13 SAT103 PDL → SMA Jul 13, 13:40 UTCJul 13, 13:55 UTC15m
2026-07-11 SAT1109 - Jul 11, 19:40 UTCJul 11, 19:50 UTC10m
2026-07-11 SAT419 - Jul 11, 11:40 UTCJul 11, 11:50 UTC10m
2026-07-10 SAT577 - Jul 10, 20:50 UTCJul 10, 21:00 UTC10m
2026-07-01 SAT103 PDL → SMA Jul 1, 12:25 UTCJul 1, 12:35 UTC10m
2026-06-29 SAT102 SMA → PDL Jun 29, 13:19 UTCJun 29, 13:30 UTC10m

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 CS-TRC page for operator, model, and routing details .

Mode-S 495243 frequently asked

What is Mode-S code 495243?
495243 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-TRC.
Where is Mode-S 495243 registered?
Mode-S code 495243 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 495243 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 495243, octal 22251103, decimal 4,805,187.
What flights does 495243 operate?
Mode-S 495243 has broadcast 20 distinct callsigns, including SAT103, SAT105, SAT403, SAT1109, SAT577.