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sensors Mode-S transponder

4952A1

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-TUA · AIRBUS A-330-900

Hex
4952A1
Octal
22251241
Decimal
4,805,281
Country
PT
Tail
CS-TUA
Type
A339
Broadcasting now · callsign TAP089 · 37,000 ft
Flights observed
203
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 21:15 UTC

Current position

4952A1 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4952A1 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
TAP072 TAP Portugal 14 2026-07-22
TAP104 TAP Portugal 10 2026-07-19
TAP089 - 10 2026-07-13
TAP224 - 9 2026-07-16
TAP088 - 9 2026-07-14
TAP082 - 9 2026-07-15
TAP22MI - 8 2026-07-16
TAP210 TAP Portugal 7 2026-07-22
TAP209K TAP Portugal 7 2026-07-21
TAP084 TAP Portugal 7 2026-07-24
TAP073 - 7 2026-07-01
TAP282 TAP Portugal 6 2026-07-25
TAP011 - 6 2026-07-08
TAP203 - 5 2026-07-12
TAP118 - 5 2026-06-25
TAP087 - 5 2026-07-14
TAP028 - 5 2026-07-07
TAP204A - 4 2026-07-13
TAP083 TAP Portugal 4 2026-07-23
TAP012 - 4 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TAP074 GIG → LIS Jul 26, 18:45 UTCJul 26, 21:15 UTC2h 30m
2026-07-25 TAP075 LIS → GIG Jul 25, 23:35 UTCJul 26, 08:40 UTC9h 6m
2026-07-25 TAP282 MPM → LIS Jul 25, 15:40 UTCJul 25, 17:10 UTC1h 30m
2026-07-24 TAP282 MPM → LIS Jul 24, 18:55 UTCJul 25, 17:10 UTC22h 15m
2026-07-24 TAP084 GRU → LIS Jul 24, 03:55 UTCJul 24, 13:25 UTC9h 30m
2026-07-23 TAP083 LIS → GRU Jul 23, 16:40 UTCJul 24, 02:10 UTC9h 30m
2026-07-22 TAP072 GIG → LIS Jul 22, 17:35 UTCJul 23, 09:05 UTC15h 30m
2026-07-22 TAP072 GIG → LIS Jul 22, 12:25 UTCJul 23, 09:05 UTC20h 40m
2026-07-22 TAP072 GIG → LIS Jul 22, 11:10 UTCJul 23, 09:05 UTC21h 55m
2026-07-22 TAP210 JFK → LIS Jul 22, 02:45 UTCJul 22, 04:25 UTC1h 40m
2026-07-21 TAP209K LIS → JFK Jul 21, 16:40 UTCJul 21, 23:30 UTC6h 50m
2026-07-21 TAP23SL SFO → LIS Jul 21, 00:15 UTCJul 21, 10:45 UTC10h 30m
2026-07-20 TAP237M LIS → SFO Jul 20, 09:00 UTCJul 20, 20:35 UTC11h 35m
2026-07-19 TAP104 CNF → LIS Jul 19, 10:20 UTCJul 20, 05:35 UTC19h 15m
2026-07-19 TAP104 CNF → LIS Jul 19, 09:50 UTCJul 20, 05:35 UTC19h 45m
2026-07-18 TAP074 GIG → LIS Jul 18, 18:45 UTCJul 19, 03:30 UTC8h 45m
2026-07-17 TAP075 LIS → GIG Jul 17, 22:40 UTCJul 18, 08:00 UTC9h 21m
2026-07-16 TAP224 - Jul 16, 21:45 UTCJul 17, 05:20 UTC7h 35m
2026-07-16 TAP22MI - Jul 16, 10:25 UTCJul 16, 18:59 UTC8h 35m
2026-07-15 TAP082 - Jul 15, 18:50 UTCJul 16, 04:05 UTC9h 15m
2026-07-14 TAP087 - Jul 14, 23:00 UTCJul 15, 08:55 UTC9h 55m
2026-07-14 TAP088 - Jul 14, 01:55 UTCJul 14, 10:55 UTC9h 0m
2026-07-13 TAP089 LIS → GRU Jul 13, 13:50 UTCJul 13, 23:50 UTC10h 0m
2026-07-13 TAP204A EWR → LIS Jul 13, 04:20 UTCJul 13, 10:45 UTC6h 25m
2026-07-12 TAP203 LIS → EWR Jul 12, 18:15 UTCJul 13, 01:25 UTC7h 10m
2026-07-12 TAP248 - Jul 12, 00:45 UTCJul 12, 11:20 UTC10h 35m
2026-07-11 TAP247 - Jul 11, 09:50 UTCJul 11, 21:10 UTC11h 20m
2026-07-10 TAP057 - Jul 10, 10:20 UTCJul 11, 05:45 UTC19h 25m
2026-07-09 TAP224 - Jul 9, 21:40 UTCJul 10, 05:15 UTC7h 35m
2026-07-09 TAP22MI LIS → MIA Jul 9, 11:00 UTCJul 9, 19:05 UTC8h 5m
2026-07-09 TAP012 - Jul 9, 01:50 UTCJul 9, 08:45 UTC6h 55m
2026-07-08 TAP011 - Jul 8, 16:45 UTCJul 8, 23:55 UTC7h 10m
2026-07-07 TAP028 LIS → LIS Jul 7, 16:45 UTCJul 8, 10:35 UTC17h 50m
2026-07-06 TAP110 - Jul 6, 18:55 UTCJul 7, 13:00 UTC18h 5m
2026-07-06 TAP110 - Jul 6, 14:20 UTCJul 7, 13:00 UTC22h 40m
2026-07-06 TAP110 - Jul 6, 12:35 UTCJul 7, 12:15 UTC23h 40m
2026-07-06 TAP012 - Jul 6, 02:05 UTCJul 6, 08:55 UTC6h 50m
2026-07-06 TAP011 - Jul 6, 00:00 UTCJul 6, 00:20 UTC20m
2026-07-05 TAP011 - Jul 5, 17:25 UTCJul 5, 19:10 UTC1h 45m
2026-07-05 TAP084 - Jul 5, 13:20 UTCJul 5, 13:55 UTC35m
2026-07-05 TAP084 - Jul 5, 04:45 UTCJul 5, 13:15 UTC8h 30m
2026-07-04 TAP083 - Jul 4, 17:15 UTCJul 5, 02:50 UTC9h 35m
2026-07-04 TAP204A - Jul 4, 06:35 UTCJul 4, 13:00 UTC6h 25m
2026-07-04 TAP203 BOS → EWR Jul 4, 03:10 UTCJul 4, 04:00 UTC50m
2026-07-03 TAP203 LIS → BOS Jul 3, 17:35 UTCJul 4, 00:40 UTC7h 5m
2026-07-02 TAP028 LIS → LIS Jul 2, 16:50 UTCJul 3, 10:25 UTC17h 35m
2026-07-01 TAP072 - Jul 1, 23:55 UTCJul 2, 08:45 UTC8h 50m
2026-07-01 TAP073 - Jul 1, 11:40 UTCJul 1, 20:35 UTC8h 55m
2026-06-30 TAP072 - Jun 30, 23:20 UTCJul 1, 08:20 UTC9h 0m
2026-06-30 TAP073 - Jun 30, 10:50 UTCJun 30, 20:15 UTC9h 25m

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-TUA page for operator, model, and routing details .

Mode-S 4952A1 frequently asked

What is Mode-S code 4952A1?
4952A1 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-TUA.
Where is Mode-S 4952A1 registered?
Mode-S code 4952A1 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4952A1 broadcasting right now?
Yes. Mode-S 4952A1 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4952A1, octal 22251241, decimal 4,805,281.
What flights does 4952A1 operate?
Mode-S 4952A1 has broadcast 20 distinct callsigns, including TAP072, TAP104, TAP089, TAP224, TAP088.