sensors Mode-S transponder

49521A

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-TPZ · EMBRAER ERJ-190-100

Hex
49521A
Octal
22251032
Decimal
4,805,146
Country
PT
Tail
CS-TPZ
Type
E190
No current signal · last broadcast Jul 26, 22:30 UTC
Flights observed
484
Distinct callsigns
20
Country
PT
Last broadcast
Jul 26, 22:30 UTC

Last known position

Most recent position reported by Mode-S 49521A.

Country allocation

The ICAO 24-bit address 49521A 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
TAP3831 - 11 2026-07-02
TAP1717 - 11 2026-07-02
TAP11SV - 11 2026-07-10
TAP1102 - 11 2026-07-10
TAP542U - 10 2026-07-18
TAP543W - 9 2026-07-18
TAP495Y - 8 2026-07-21
TAP494Y TAP Portugal 8 2026-07-20
TAP3834 - 8 2026-07-02
TAP1716 - 8 2026-07-02
TAP85CE - 7 2026-07-23
TAP11ZL TAP Portugal 7 2026-07-26
TAP10VL - 7 2026-07-22
TAP92VC - 6 2026-07-12
TAP82LN - 6 2026-07-06
TAP48M - 6 2026-07-06
TAP11VP TAP Portugal 6 2026-07-20
TAP1139 - 6 2026-07-05
TAP63CT - 5 2026-07-13
TAP62JR - 5 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TAP11ZL LIS → SVQ Jul 26, 22:00 UTCJul 26, 22:30 UTC30m
2026-07-25 TAP885 NAP → LIS Jul 25, 19:15 UTCJul 25, 22:20 UTC3h 5m
2026-07-25 TAP884 LIS → ATH Jul 25, 15:05 UTCJul 25, 17:20 UTC2h 15m
2026-07-25 TAP1335 LGW → OPO Jul 25, 10:15 UTCJul 25, 12:20 UTC2h 5m
2026-07-25 TAP34A LIS → LGW Jul 25, 06:30 UTCJul 25, 08:35 UTC2h 5m
2026-07-23 TAP871 - Jul 23, 16:15 UTCJul 23, 19:10 UTC2h 55m
2026-07-23 TAP870 LIS → BLQ Jul 23, 12:45 UTCJul 23, 15:00 UTC2h 15m
2026-07-23 TAP85CE NCE → LIS Jul 23, 04:15 UTCJul 23, 06:35 UTC2h 20m
2026-07-22 TAP486 LIS → NCE Jul 22, 23:10 UTCJul 23, 01:00 UTC1h 50m
2026-07-22 TAP1933 OPO → LIS Jul 22, 21:20 UTCJul 22, 22:10 UTC50m
2026-07-22 TAP1934 LIS → OPO Jul 22, 19:40 UTCJul 22, 20:15 UTC35m
2026-07-22 TAP10VL VLC → LIS Jul 22, 11:15 UTCJul 22, 12:30 UTC1h 15m
2026-07-21 TAP39PT BCN → LIS Jul 21, 21:00 UTCJul 21, 22:45 UTC1h 45m
2026-07-21 TAP38KJ LIS → BCN Jul 21, 18:10 UTCJul 21, 19:30 UTC1h 20m
2026-07-21 TAP17RA - Jul 21, 13:05 UTCJul 21, 14:40 UTC1h 35m
2026-07-21 TAP16AL LIS → LPA Jul 21, 09:35 UTCJul 21, 11:20 UTC1h 45m
2026-07-21 TAP495Y - Jul 21, 05:00 UTCJul 21, 06:40 UTC1h 40m
2026-07-20 TAP494Y LIS → TLS Jul 20, 19:25 UTCJul 20, 20:50 UTC1h 25m
2026-07-20 TAP10EV - Jul 20, 16:55 UTCJul 20, 18:20 UTC1h 25m
2026-07-20 TAP94EV LIS → VLC Jul 20, 14:50 UTCJul 20, 15:55 UTC1h 5m
2026-07-20 TAP481 NCE → LIS Jul 20, 11:00 UTCJul 20, 13:30 UTC2h 30m
2026-07-20 TAP48N LIS → NCE Jul 20, 07:20 UTCJul 20, 09:15 UTC1h 55m
2026-07-20 TAP11VP SVQ → LIS Jul 20, 04:45 UTCJul 20, 05:30 UTC45m
2026-07-19 TAP11ZL LIS → SVQ Jul 19, 21:50 UTCJul 19, 22:35 UTC45m
2026-07-19 TAP37CN BCN → LIS Jul 19, 18:45 UTCJul 19, 20:25 UTC1h 40m
2026-07-19 TAP1036 LIS → BCN Jul 19, 15:50 UTCJul 19, 17:20 UTC1h 30m
2026-07-19 TAP1143 IBZ → LIS Jul 19, 13:00 UTCJul 19, 14:30 UTC1h 30m
2026-07-19 TAP1142 LIS → IBZ Jul 19, 10:20 UTCJul 19, 11:45 UTC1h 25m
2026-07-19 TAP11VP SVQ → LIS Jul 19, 04:40 UTCJul 19, 05:20 UTC40m
2026-07-18 TAP11ZL LIS → SVQ Jul 18, 21:40 UTCJul 18, 22:20 UTC40m
2026-07-18 TAP543W - Jul 18, 16:25 UTCJul 18, 19:25 UTC3h 0m
2026-07-18 TAP542U LIS → DUS Jul 18, 12:35 UTCJul 18, 15:20 UTC2h 45m
2026-07-18 TAP1123 ALC → LIS Jul 18, 09:40 UTCJul 18, 11:05 UTC1h 25m
2026-07-18 TAP1122 LIS → ALC Jul 18, 05:50 UTCJul 18, 06:55 UTC1h 5m
2026-07-17 TAP1017 - Jul 17, 16:15 UTCJul 17, 17:20 UTC1h 5m
2026-07-17 TAP10AD LIS → MAD Jul 17, 14:00 UTCJul 17, 14:50 UTC50m
2026-07-17 TAP1335 LGW → LIS Jul 17, 09:50 UTCJul 17, 12:10 UTC2h 20m
2026-07-17 TAP34A LIS → LGW Jul 17, 06:15 UTCJul 17, 08:30 UTC2h 15m
2026-07-16 TAP473H LYS → LIS Jul 16, 17:35 UTCJul 16, 20:15 UTC2h 40m
2026-07-16 TAP472C LIS → LYS Jul 16, 14:10 UTCJul 16, 15:49 UTC1h 40m
2026-07-16 TAP1335 LGW → LIS Jul 16, 10:15 UTCJul 16, 12:34 UTC2h 20m
2026-07-16 TAP34A LIS → LGW Jul 16, 06:55 UTCJul 16, 08:55 UTC2h 0m
2026-07-15 TAP543W DUS → LIS Jul 15, 16:10 UTCJul 15, 19:10 UTC3h 0m
2026-07-15 TAP542U LIS → DUS Jul 15, 12:50 UTCJul 15, 15:15 UTC2h 25m
2026-07-15 TAP429 ORY → LIS Jul 15, 08:35 UTCJul 15, 10:55 UTC2h 20m
2026-07-15 TAP428 LIS → ORY Jul 15, 05:15 UTCJul 15, 07:15 UTC2h 0m
2026-07-14 TAP35BL BCN → LIS Jul 14, 16:20 UTCJul 14, 18:00 UTC1h 40m
2026-07-14 TAP1034 LIS → BCN Jul 14, 13:30 UTCJul 14, 14:55 UTC1h 25m
2026-07-14 TAP68JP FNC → LIS Jul 14, 08:20 UTCJul 14, 09:40 UTC1h 20m
2026-07-14 TAP1685 PXO → FNC Jul 14, 06:35 UTCJul 14, 06:45 UTC10m

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

Mode-S 49521A frequently asked

What is Mode-S code 49521A?
49521A is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-TPZ.
Where is Mode-S 49521A registered?
Mode-S code 49521A is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 49521A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 22:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 49521A, octal 22251032, decimal 4,805,146.
What flights does 49521A operate?
Mode-S 49521A has broadcast 20 distinct callsigns, including TAP3831, TAP1717, TAP11SV, TAP1102, TAP542U.