sensors Mode-S transponder

4952CC

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-TVL · AIRBUS A-320neo

Hex
4952CC
Octal
22251314
Decimal
4,805,324
Country
PT
Tail
CS-TVL
Type
A20N
No current signal · last broadcast 15h ago
Flights observed
8
Distinct callsigns
6
Country
PT
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4952CC.

Country allocation

The ICAO 24-bit address 4952CC 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 6 distinct

Callsign Airline Flights Last seen
TAP443 TAP Portugal 2 2026-04-14
TAP440 - 2 2026-04-13
TAP9021 - 1 2026-04-13
TAP6MS - 1 2026-04-13
TAP669 - 1 2026-04-13
TAP57W - 1 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 TAP443 ORY → LIS Apr 14, 07:10 UTCApr 14, 07:50 UTC40m
2026-04-14 TAP443 ORY → LIS Apr 14, 05:50 UTCApr 14, 07:10 UTC1h 20m
2026-04-13 TAP440 - Apr 13, 19:45 UTCApr 13, 19:50 UTC5m
2026-04-13 TAP440 - Apr 13, 17:35 UTCApr 13, 19:50 UTC2h 15m
2026-04-13 TAP669 - Apr 13, 12:25 UTCApr 13, 15:10 UTC2h 45m
2026-04-13 TAP6MS - Apr 13, 08:20 UTCApr 13, 10:50 UTC2h 30m
2026-04-13 TAP9021 - Apr 13, 04:25 UTCApr 13, 06:30 UTC2h 5m
2026-04-12 TAP57W - Apr 12, 18:15 UTCApr 12, 20:15 UTC2h 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 CS-TVL page for operator, model, and routing details .

Mode-S 4952CC frequently asked

What is Mode-S code 4952CC?
4952CC is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-TVL.
Where is Mode-S 4952CC registered?
Mode-S code 4952CC is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4952CC broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4952CC, octal 22251314, decimal 4,805,324.
What flights does 4952CC operate?
Mode-S 4952CC has broadcast 6 distinct callsigns, including TAP443, TAP440, TAP9021, TAP6MS, TAP669.