sensors Mode-S transponder

4951D6

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-TNV · AIRBUS A-320

Hex
4951D6
Octal
22250726
Decimal
4,805,078
Country
PT
Tail
CS-TNV
Type
A320
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
499
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S 4951D6.

Country allocation

The ICAO 24-bit address 4951D6 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
TAP1329 - 13 2026-06-30
TAP1328 - 11 2026-06-30
TAP1920 - 10 2026-06-30
TAP35MT - 9 2026-06-30
TAP826 - 8 2026-06-20
TAP16LN - 8 2026-07-16
TAP1687 TAP Portugal 8 2026-07-24
TAP828 TAP Portugal 7 2026-07-22
TAP827V - 7 2026-06-20
TAP9ML - 6 2026-07-23
TAP94VA - 6 2026-07-22
TAP687 TAP Portugal 6 2026-05-22
TAP686 TAP Portugal 6 2026-05-22
TAP57LK TAP Portugal 6 2026-07-26
TAP42LV - 6 2026-07-22
TAP939 - 5 2026-06-18
TAP938 - 5 2026-06-18
TAP921 - 5 2026-06-30
TAP920 - 5 2026-06-30
TAP88TM TAP Portugal 5 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TAP57LK LIS → FRA Jul 26, 17:50 UTCJul 26, 20:50 UTC3h 0m
2026-07-26 TAP1151 PMI → LIS Jul 26, 12:00 UTCJul 26, 13:45 UTC1h 45m
2026-07-26 TAP1150 LIS → PMI Jul 26, 09:05 UTCJul 26, 10:30 UTC1h 25m
2026-07-25 TAP825 MXP → LIS Jul 25, 17:15 UTCJul 25, 19:45 UTC2h 30m
2026-07-25 TAP824 LIS → MXP Jul 25, 13:40 UTCJul 25, 15:40 UTC2h 0m
2026-07-25 TAP1925 OPO → LIS Jul 25, 11:50 UTCJul 25, 12:25 UTC35m
2026-07-25 TAP1924 LIS → OPO Jul 25, 10:05 UTCJul 25, 10:35 UTC30m
2026-07-25 TAP8RL FCO → LIS Jul 25, 04:10 UTCJul 25, 07:25 UTC3h 15m
2026-07-24 TAP838Z LIS → FCO Jul 24, 20:00 UTCJul 24, 22:15 UTC2h 15m
2026-07-24 TAP88TM FNC → LIS Jul 24, 11:45 UTCJul 24, 13:10 UTC1h 25m
2026-07-24 TAP1687 LIS → FNC Jul 24, 10:35 UTCJul 24, 10:45 UTC10m
2026-07-24 TAP1687 LIS → FNC Jul 24, 09:10 UTCJul 24, 10:00 UTC50m
2026-07-24 TAP53EI BER → LIS Jul 24, 04:20 UTCJul 24, 07:35 UTC3h 15m
2026-07-23 TAP4BE LIS → BER Jul 23, 17:30 UTCJul 23, 20:35 UTC3h 5m
2026-07-23 TAP16AL LIS → LPA Jul 23, 09:50 UTCJul 23, 14:50 UTC5h 0m
2026-07-23 TAP9ML MXP → LIS Jul 23, 04:05 UTCJul 23, 06:45 UTC2h 40m
2026-07-22 TAP828 LIS → MXP Jul 22, 21:10 UTCJul 22, 23:20 UTC2h 10m
2026-07-22 TAP94VA GVA → LIS Jul 22, 16:50 UTCJul 22, 19:25 UTC2h 35m
2026-07-22 TAP42LV LIS → GVA Jul 22, 13:45 UTCJul 22, 15:40 UTC1h 55m
2026-07-22 TAP831 FCO → LIS Jul 22, 10:20 UTCJul 22, 12:35 UTC2h 15m
2026-07-21 TAP1931 OPO → LIS Jul 21, 17:10 UTCJul 21, 18:00 UTC50m
2026-07-21 TAP1930 LIS → OPO Jul 21, 15:20 UTCJul 21, 15:55 UTC35m
2026-07-21 TAP86GM - Jul 21, 10:35 UTCJul 21, 13:40 UTC3h 5m
2026-07-21 TAP86PZ LIS → VCE Jul 21, 06:00 UTCJul 21, 08:25 UTC2h 25m
2026-07-20 TAP755 CPH → LIS Jul 20, 16:25 UTCJul 20, 19:55 UTC3h 30m
2026-07-20 TAP754A LIS → CPH Jul 20, 11:40 UTCJul 20, 15:00 UTC3h 20m
2026-07-20 TAP1923 OPO → LIS Jul 20, 09:15 UTCJul 20, 10:00 UTC45m
2026-07-20 TAP1922 LIS → OPO Jul 20, 07:30 UTCJul 20, 08:05 UTC35m
2026-07-19 TAP645 BRU → LIS Jul 19, 19:05 UTCJul 19, 21:35 UTC2h 30m
2026-07-19 TAP44BR LIS → BRU Jul 19, 15:35 UTCJul 19, 17:50 UTC2h 15m
2026-07-19 TAP931L ZRH → LIS Jul 19, 11:40 UTCJul 19, 14:20 UTC2h 40m
2026-07-19 TAP93ZR LIS → ZRH Jul 19, 07:50 UTCJul 19, 10:00 UTC2h 10m
2026-07-19 TAP901 ATH → LIS Jul 19, 02:05 UTCJul 19, 06:15 UTC4h 10m
2026-07-18 TAP900 LIS → ATH Jul 18, 20:55 UTCJul 19, 00:40 UTC3h 45m
2026-07-18 TAP835 - Jul 18, 16:10 UTCJul 18, 18:55 UTC2h 45m
2026-07-18 TAP83K LIS → FCO Jul 18, 12:25 UTCJul 18, 14:40 UTC2h 15m
2026-07-18 TAP757P CPH → LIS Jul 18, 04:25 UTCJul 18, 07:55 UTC3h 30m
2026-07-17 TAP6CY LIS → CPH Jul 17, 18:10 UTCJul 17, 21:15 UTC3h 5m
2026-07-17 TAP56DT - Jul 17, 11:55 UTCJul 17, 15:10 UTC3h 15m
2026-07-17 TAP560 LIS → HAM Jul 17, 07:44 UTCJul 17, 10:20 UTC2h 35m
2026-07-17 TAP98CX FNC → LIS Jul 17, 04:59 UTCJul 17, 06:15 UTC1h 15m
2026-07-16 TAP16LN - Jul 16, 23:20 UTCJul 16, 23:35 UTC15m
2026-07-16 TAP16LN - Jul 16, 22:05 UTCJul 16, 22:49 UTC45m
2026-07-16 TAP755 CPH → LIS Jul 16, 16:25 UTCJul 16, 20:00 UTC3h 35m
2026-07-16 TAP754A LIS → CPH Jul 16, 11:54 UTCJul 16, 15:05 UTC3h 10m
2026-07-16 TAP575 FRA → LIS Jul 16, 04:30 UTCJul 16, 07:40 UTC3h 10m
2026-07-15 TAP57LK - Jul 15, 17:50 UTCJul 15, 20:20 UTC2h 30m
2026-07-15 TAP56DT HAM → LIS Jul 15, 11:50 UTCJul 15, 15:10 UTC3h 20m
2026-07-15 TAP560 LIS → HAM Jul 15, 07:35 UTCJul 15, 10:25 UTC2h 50m
2026-07-15 TAP1908 FAO → LIS Jul 15, 05:15 UTCJul 15, 05:45 UTC30m

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

Mode-S 4951D6 frequently asked

What is Mode-S code 4951D6?
4951D6 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-TNV.
Where is Mode-S 4951D6 registered?
Mode-S code 4951D6 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4951D6 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4951D6, octal 22250726, decimal 4,805,078.
What flights does 4951D6 operate?
Mode-S 4951D6 has broadcast 20 distinct callsigns, including TAP1329, TAP1328, TAP1920, TAP35MT, TAP826.