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sensors Mode-S transponder

495308

ICAO 24-bit transponder address · allocated to Portugal

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

Hex
495308
Octal
22251410
Decimal
4,805,384
Country
PT
Tail
CS-TXH
Type
A21N
Broadcasting now · callsign TAP052 · 36,000 ft
Flights observed
298
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 18:15 UTC

Current position

495308 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 495308 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
TAP211 - 17 2026-07-10
TAP212 - 16 2026-07-11
TAP1703 - 15 2026-07-12
TAP257N TAP Portugal 11 2026-07-25
TAP1704 - 11 2026-07-12
TAP215 TAP Portugal 10 2026-07-26
TAP254 - 9 2026-07-14
TAP228 - 9 2026-07-13
TAP6MS - 7 2026-07-16
TAP669 - 7 2026-07-16
TAP253R - 7 2026-07-13
TAP011 - 7 2026-06-28
TAP571 TAP Portugal 6 2026-07-23
TAP25YZ TAP Portugal 6 2026-07-25
TAP227 - 6 2026-07-12
TAP218 TAP Portugal 6 2026-07-19
TAP217C - 6 2026-07-19
TAP015 - 6 2026-07-17
TAP7AB TAP Portugal 5 2026-07-23
TAP262M - 5 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TAP215 LIS → BOS Jul 26, 17:30 UTCJul 26, 18:15 UTC45m
2026-07-26 TAP433 ORY → LIS Jul 26, 13:25 UTCJul 26, 15:35 UTC2h 10m
2026-07-26 TAP432 LIS → ORY Jul 26, 09:40 UTCJul 26, 11:55 UTC2h 15m
2026-07-25 TAP25YZ YYZ → LIS Jul 25, 21:55 UTCJul 26, 05:15 UTC7h 20m
2026-07-25 TAP257N LIS → YYZ Jul 25, 10:00 UTCJul 25, 17:00 UTC7h 0m
2026-07-24 TAP202A EWR → LIS Jul 24, 21:40 UTCJul 25, 04:20 UTC6h 40m
2026-07-24 TAP201 LIS → EWR Jul 24, 12:10 UTCJul 24, 19:20 UTC7h 10m
2026-07-24 TAP234Y IAD → LIS Jul 24, 03:20 UTCJul 24, 10:20 UTC7h 0m
2026-07-23 TAP233 RAK → LIS Jul 23, 16:45 UTCJul 24, 00:15 UTC7h 30m
2026-07-23 TAP571 FRA → LIS Jul 23, 12:25 UTCJul 23, 15:00 UTC2h 35m
2026-07-23 TAP7AB LIS → FRA Jul 23, 07:45 UTCJul 23, 10:25 UTC2h 40m
2026-07-22 TAP25YZ YYZ → LIS Jul 22, 21:55 UTCJul 23, 04:50 UTC6h 55m
2026-07-22 TAP257N LIS → YYZ Jul 22, 01:30 UTCJul 22, 17:20 UTC15h 50m
2026-07-21 TAP007 - Jul 21, 12:20 UTCJul 22, 10:25 UTC22h 5m
2026-07-21 TAP007 - Jul 21, 11:05 UTCJul 22, 01:40 UTC14h 35m
2026-07-20 TAP25YZ YYZ → LIS Jul 20, 22:15 UTCJul 21, 05:10 UTC6h 54m
2026-07-20 TAP257N LIS → YYZ Jul 20, 11:25 UTCJul 20, 18:55 UTC7h 30m
2026-07-19 TAP218 BOS → LIS Jul 19, 22:35 UTCJul 20, 04:40 UTC6h 5m
2026-07-19 TAP217C LIS → BOS Jul 19, 11:05 UTCJul 19, 17:50 UTC6h 45m
2026-07-19 TAP216L BOS → LIS Jul 19, 03:00 UTCJul 19, 08:55 UTC5h 55m
2026-07-18 TAP215 LIS → BOS Jul 18, 17:10 UTCJul 19, 00:05 UTC6h 55m
2026-07-18 TAP016 - Jul 18, 07:35 UTCJul 18, 14:40 UTC7h 5m
2026-07-17 TAP015 - Jul 17, 22:40 UTCJul 18, 05:40 UTC7h 1m
2026-07-17 TAP93ZS ZRH → LIS Jul 17, 16:34 UTCJul 17, 19:20 UTC2h 45m
2026-07-17 TAP932 LIS → ZRH Jul 17, 13:10 UTCJul 17, 15:20 UTC2h 10m
2026-07-17 TAP234Y IAD → LIS Jul 17, 02:59 UTCJul 17, 09:35 UTC6h 35m
2026-07-16 TAP233 RAK → LIS Jul 16, 17:05 UTCJul 17, 01:05 UTC8h 0m
2026-07-16 TAP669 - Jul 16, 12:25 UTCJul 16, 15:14 UTC2h 50m
2026-07-16 TAP6MS LIS → AMS Jul 16, 08:15 UTCJul 16, 10:29 UTC2h 15m
2026-07-15 TAP1532 - Jul 15, 23:45 UTCJul 16, 05:05 UTC5h 20m
2026-07-15 TAP1531 - Jul 15, 00:05 UTCJul 15, 23:45 UTC23h 40m
2026-07-14 TAP1531 - Jul 14, 23:30 UTCJul 15, 00:50 UTC1h 20m
2026-07-14 TAP94VA - Jul 14, 17:15 UTCJul 14, 19:45 UTC2h 30m
2026-07-14 TAP42LV LIS → GVA Jul 14, 14:00 UTCJul 14, 16:00 UTC2h 0m
2026-07-14 TAP254 - Jul 14, 10:05 UTCJul 14, 10:50 UTC45m
2026-07-14 TAP254 - Jul 14, 04:30 UTCJul 14, 06:00 UTC1h 30m
2026-07-13 TAP253R LIS → YUL Jul 13, 19:45 UTCJul 14, 02:30 UTC6h 45m
2026-07-13 TAP1929 OPO → LIS Jul 13, 17:35 UTCJul 13, 18:15 UTC40m
2026-07-13 TAP228 BOS → OPO Jul 13, 04:05 UTCJul 13, 10:15 UTC6h 10m
2026-07-12 TAP227 OPO → BOS Jul 12, 17:50 UTCJul 13, 00:30 UTC6h 40m
2026-07-12 TAP1704 - Jul 12, 14:15 UTCJul 12, 15:55 UTC1h 40m
2026-07-12 TAP1703 - Jul 12, 11:25 UTCJul 12, 12:25 UTC1h 0m
2026-07-12 TAP228 BOS → OPO Jul 12, 03:30 UTCJul 12, 09:25 UTC5h 55m
2026-07-11 TAP227 OPO → BOS Jul 11, 17:25 UTCJul 12, 00:10 UTC6h 45m
2026-07-11 TAP212 EWR → OPO Jul 11, 03:25 UTCJul 11, 09:50 UTC6h 25m
2026-07-10 TAP211 OPO → EWR Jul 10, 17:35 UTCJul 11, 00:55 UTC7h 20m
2026-07-10 TAP1704 FNC → OPO Jul 10, 14:15 UTCJul 10, 15:50 UTC1h 35m
2026-07-10 TAP1703 - Jul 10, 13:15 UTCJul 10, 13:20 UTC5m
2026-07-10 TAP1703 - Jul 10, 11:35 UTCJul 10, 12:35 UTC1h 0m
2026-07-10 TAP212 EWR → OPO Jul 10, 03:35 UTCJul 10, 10:00 UTC6h 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-TXH page for operator, model, and routing details .

Mode-S 495308 frequently asked

What is Mode-S code 495308?
495308 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-TXH.
Where is Mode-S 495308 registered?
Mode-S code 495308 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 495308 broadcasting right now?
Yes. Mode-S 495308 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 495308, octal 22251410, decimal 4,805,384.
What flights does 495308 operate?
Mode-S 495308 has broadcast 20 distinct callsigns, including TAP211, TAP212, TAP1703, TAP257N, TAP1704.