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sensors Mode-S transponder

495301

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-TXA · AIRBUS A-321neo

Hex
495301
Octal
22251401
Decimal
4,805,377
Country
PT
Tail
CS-TXA
Type
A21N
Broadcasting now · callsign TAP231P · 34,000 ft
Flights observed
297
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 22:15 UTC

Current position

495301 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 495301 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
TAP212 - 17 2026-07-16
TAP211 - 16 2026-07-15
TAP1703 - 14 2026-06-29
TAP228 - 9 2026-07-09
TAP215 - 9 2026-07-11
TAP25YZ - 8 2026-07-10
TAP257N - 8 2026-07-10
TAP227 - 8 2026-07-08
TAP216L - 8 2026-07-12
TAP1704 - 8 2026-06-29
TAP234Y TAP Portugal 7 2026-07-23
TAP233 TAP Portugal 7 2026-07-26
TAP218 TAP Portugal 7 2026-07-23
TAP203 TAP Portugal 7 2026-04-17
TAP254 TAP Portugal 6 2026-07-25
TAP253R TAP Portugal 6 2026-07-24
TAP217C TAP Portugal 6 2026-07-23
TAP15NC - 6 2026-07-17
TAP14NC - 6 2026-07-17
TAP7AB TAP Portugal 5 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TAP233 RAK → LIS Jul 26, 17:10 UTCJul 26, 22:15 UTC5h 5m
2026-07-26 TAP571 FRA → LIS Jul 26, 12:35 UTCJul 26, 15:15 UTC2h 40m
2026-07-26 TAP7AB LIS → FRA Jul 26, 07:45 UTCJul 26, 10:30 UTC2h 45m
2026-07-25 TAP202A EWR → LIS Jul 25, 21:45 UTCJul 26, 04:25 UTC6h 40m
2026-07-25 TAP201 LIS → EWR Jul 25, 11:45 UTCJul 25, 19:00 UTC7h 15m
2026-07-25 TAP254 YUL → LIS Jul 25, 03:20 UTCJul 25, 09:50 UTC6h 30m
2026-07-24 TAP253R LIS → YUL Jul 24, 17:45 UTCJul 25, 00:30 UTC6h 45m
2026-07-24 TAP23PN LIS → TER Jul 24, 11:05 UTCJul 24, 16:10 UTC5h 5m
2026-07-23 TAP218 BOS → LIS Jul 23, 22:50 UTCJul 24, 04:55 UTC6h 5m
2026-07-23 TAP217C LIS → BOS Jul 23, 11:55 UTCJul 23, 18:40 UTC6h 45m
2026-07-23 TAP234Y IAD → LIS Jul 23, 03:00 UTCJul 23, 09:55 UTC6h 55m
2026-07-22 TAP233 RAK → LIS Jul 22, 16:45 UTCJul 23, 00:20 UTC7h 35m
2026-07-22 TAP88TM FNC → LIS Jul 22, 12:20 UTCJul 22, 13:35 UTC1h 15m
2026-07-21 TAP232Y IAD → LIS Jul 21, 21:15 UTCJul 22, 04:00 UTC6h 45m
2026-07-21 TAP231P LIS → IAD Jul 21, 11:05 UTCJul 21, 18:50 UTC7h 45m
2026-07-20 TAP202A EWR → LIS Jul 20, 21:55 UTCJul 21, 04:15 UTC6h 19m
2026-07-20 TAP201 LIS → EWR Jul 20, 11:30 UTCJul 20, 18:50 UTC7h 20m
2026-07-20 TAP234Y IAD → LIS Jul 20, 09:10 UTCJul 20, 09:45 UTC35m
2026-07-20 TAP234Y IAD → LIS Jul 20, 03:10 UTCJul 20, 04:45 UTC1h 35m
2026-07-19 TAP233 RAK → LIS Jul 19, 17:00 UTCJul 20, 00:55 UTC7h 55m
2026-07-18 TAP047 LIS → LIS Jul 18, 17:00 UTCJul 19, 09:40 UTC16h 40m
2026-07-18 TAP1929 OPO → LIS Jul 18, 14:50 UTCJul 18, 15:30 UTC40m
2026-07-18 TAP1928 LIS → OPO Jul 18, 13:05 UTCJul 18, 13:35 UTC30m
2026-07-18 TAP262M YYZ → LIS Jul 18, 03:10 UTCJul 18, 09:55 UTC6h 45m
2026-07-17 TAP261 LIS → MPM Jul 17, 17:50 UTCJul 18, 01:15 UTC7h 25m
2026-07-17 TAP15NC - Jul 17, 14:50 UTCJul 17, 16:00 UTC1h 10m
2026-07-17 TAP14NC LIS → MAD Jul 17, 12:15 UTCJul 17, 13:15 UTC1h 0m
2026-07-17 TAP254 YUL → LIS Jul 17, 03:10 UTCJul 17, 09:20 UTC6h 10m
2026-07-16 TAP253R LIS → YUL Jul 16, 17:54 UTCJul 17, 00:55 UTC7h 0m
2026-07-16 TAP1929 OPO → LIS Jul 16, 15:05 UTCJul 16, 15:55 UTC50m
2026-07-16 TAP212 - Jul 16, 03:55 UTCJul 16, 09:55 UTC6h 0m
2026-07-15 TAP211 OPO → EWR Jul 15, 17:50 UTCJul 16, 01:25 UTC7h 35m
2026-07-15 TAP1930 LIS → OPO Jul 15, 15:30 UTCJul 15, 16:05 UTC35m
2026-07-15 TAP006 - Jul 15, 06:05 UTCJul 15, 07:50 UTC1h 45m
2026-07-14 TAP007 - Jul 14, 19:25 UTCJul 14, 19:40 UTC15m
2026-07-14 TAP007 - Jul 14, 11:10 UTCJul 14, 13:05 UTC1h 55m
2026-07-13 TAP005 LIS → LIS Jul 13, 17:30 UTCJul 14, 08:40 UTC15h 10m
2026-07-13 TAP669 - Jul 13, 13:00 UTCJul 13, 15:40 UTC2h 40m
2026-07-13 TAP6MS LIS → AMS Jul 13, 08:25 UTCJul 13, 10:50 UTC2h 25m
2026-07-12 TAP232Y IAD → LIS Jul 12, 22:05 UTCJul 13, 05:20 UTC7h 15m
2026-07-12 TAP231P LIS → IAD Jul 12, 11:05 UTCJul 12, 18:45 UTC7h 40m
2026-07-12 TAP216L BOS → LIS Jul 12, 02:55 UTCJul 12, 08:50 UTC5h 55m
2026-07-11 TAP215 LIS → BOS Jul 11, 17:00 UTCJul 12, 00:01 UTC7h 0m
2026-07-10 TAP25YZ - Jul 10, 22:00 UTCJul 11, 04:35 UTC6h 35m
2026-07-10 TAP257N - Jul 10, 16:10 UTCJul 10, 18:05 UTC1h 55m
2026-07-10 TAP257N - Jul 10, 10:20 UTCJul 10, 16:05 UTC5h 45m
2026-07-10 TAP012 - Jul 10, 01:45 UTCJul 10, 08:45 UTC7h 0m
2026-07-09 TAP011 - Jul 9, 16:50 UTCJul 10, 00:00 UTC7h 10m
2026-07-09 TAP3961 OPO → LIS Jul 9, 12:05 UTCJul 9, 12:50 UTC45m
2026-07-09 TAP228 BOS → OPO Jul 9, 03:40 UTCJul 9, 09:40 UTC6h 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-TXA page for operator, model, and routing details .

Mode-S 495301 frequently asked

What is Mode-S code 495301?
495301 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-TXA.
Where is Mode-S 495301 registered?
Mode-S code 495301 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 495301 broadcasting right now?
Yes. Mode-S 495301 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 495301, octal 22251401, decimal 4,805,377.
What flights does 495301 operate?
Mode-S 495301 has broadcast 20 distinct callsigns, including TAP212, TAP211, TAP1703, TAP228, TAP215.