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
Broadcasting now · callsign TAP48M · 33,000 ft
Flights observed
235
Distinct callsigns
20
Country
PT
Last broadcast
2h ago

Current position

49521A is currently broadcasting. Map zoomed to live position.

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 TAP Portugal 8 2026-05-14
TAP1717 TAP Portugal 8 2026-05-14
TAP85CE - 6 2026-05-11
TAP3834 - 6 2026-05-14
TAP1716 TAP Portugal 5 2026-05-14
TAP11SV TAP Portugal 5 2026-05-27
TAP1102 TAP Portugal 5 2026-05-27
TAP542U TAP Portugal 4 2026-04-25
TAP1139 TAP Portugal 4 2026-05-03
TAP1032 TAP Portugal 4 2026-05-08
TAP92VC TAP Portugal 3 2026-05-16
TAP82LN - 3 2026-05-30
TAP63CT TAP Portugal 3 2026-05-29
TAP62JR TAP Portugal 3 2026-05-29
TAP543W TAP Portugal 3 2026-04-25
TAP495Y TAP Portugal 3 2026-05-18
TAP494Y TAP Portugal 3 2026-05-17
TAP486 TAP Portugal 3 2026-05-10
TAP429 TAP Portugal 3 2026-05-19
TAP428 TAP Portugal 3 2026-05-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 TAP82LN LIS → NCE May 30, 13:20 UTCMay 30, 15:25 UTC2h 5m
2026-05-30 TAP143P CMN → LIS May 30, 10:55 UTCMay 30, 11:50 UTC55m
2026-05-30 TAP1436 LIS → CMN May 30, 08:50 UTCMay 30, 09:55 UTC1h 5m
2026-05-29 TAP35BL BCN → LIS May 29, 15:50 UTCMay 29, 17:25 UTC1h 35m
2026-05-29 TAP1034 LIS → BCN May 29, 13:15 UTCMay 29, 14:40 UTC1h 25m
2026-05-29 TAP63CT BIO → LIS May 29, 10:35 UTCMay 29, 11:45 UTC1h 10m
2026-05-29 TAP62JR LIS → BIO May 29, 08:25 UTCMay 29, 09:25 UTC1h 0m
2026-05-29 TAP11VP SVQ → LIS May 29, 04:50 UTCMay 29, 05:35 UTC45m
2026-05-28 TAP11ZL LIS → SVQ May 28, 21:30 UTCMay 28, 22:15 UTC45m
2026-05-28 TAP37CN BCN → LIS May 28, 18:45 UTCMay 28, 20:15 UTC1h 30m
2026-05-28 TAP1036 LIS → BCN May 28, 15:50 UTCMay 28, 17:25 UTC1h 35m
2026-05-28 TAP1939 OPO → LIS May 28, 12:40 UTCMay 28, 13:30 UTC50m
2026-05-27 TAP36RC LIS → OPO May 27, 21:25 UTCMay 27, 21:55 UTC30m
2026-05-27 TAP1019 MAD → LIS May 27, 18:40 UTCMay 27, 19:35 UTC55m
2026-05-27 TAP1018 LIS → MAD May 27, 16:15 UTCMay 27, 17:10 UTC55m
2026-05-27 TAP1137 AGP → LIS May 27, 13:45 UTCMay 27, 14:45 UTC1h 0m
2026-05-27 TAP1136 LIS → AGP May 27, 11:25 UTCMay 27, 12:15 UTC50m
2026-05-27 TAP11SV SVQ → LIS May 27, 08:30 UTCMay 27, 09:15 UTC45m
2026-05-27 TAP1102 LIS → SVQ May 27, 06:44 UTCMay 27, 07:30 UTC46m
2026-05-26 TAP1931 OPO → LIS May 26, 17:15 UTCMay 26, 17:50 UTC35m
2026-05-26 TAP1930 LIS → OPO May 26, 15:35 UTCMay 26, 16:10 UTC35m
2026-05-26 TAP1143 IBZ → LIS May 26, 12:10 UTCMay 26, 13:54 UTC1h 45m
2026-05-26 TAP1142 LIS → IBZ May 26, 09:35 UTCMay 26, 10:54 UTC1h 20m
2026-05-25 TAP21MM MAD → LIS May 25, 20:45 UTCMay 25, 21:40 UTC55m
2026-05-25 TAP20L LIS → MAD May 25, 18:40 UTCMay 25, 19:35 UTC54m
2026-05-25 TAP1105 SVQ → LIS May 25, 14:30 UTCMay 25, 15:20 UTC50m
2026-05-25 TAP1104 LIS → SVQ May 25, 12:45 UTCMay 25, 13:35 UTC50m
2026-05-24 TAP1825 LIS → TER May 24, 21:10 UTCMay 25, 09:25 UTC12h 15m
2026-05-24 TAP1439 CMN → LIS May 24, 16:35 UTCMay 24, 17:35 UTC1h 0m
2026-05-24 TAP1438 LIS → CMN May 24, 14:20 UTCMay 24, 15:10 UTC50m
2026-05-24 TAP481 NCE → LIS May 24, 10:45 UTCMay 24, 12:55 UTC2h 10m
2026-05-24 TAP48N LIS → NCE May 24, 07:25 UTCMay 24, 09:30 UTC2h 5m
2026-05-23 TAP37CN BCN → LIS May 23, 18:45 UTCMay 23, 20:20 UTC1h 35m
2026-05-23 TAP1036 LIS → BCN May 23, 16:10 UTCMay 23, 17:40 UTC1h 30m
2026-05-23 TAP869 BLQ → LIS May 23, 10:35 UTCMay 23, 13:20 UTC2h 45m
2026-05-23 TAP868 LIS → BLQ May 23, 07:00 UTCMay 23, 09:25 UTC2h 25m
2026-05-22 TAP1931 OPO → LIS May 22, 17:10 UTCMay 22, 17:50 UTC40m
2026-05-22 TAP1930 LIS → OPO May 22, 15:20 UTCMay 22, 15:50 UTC30m
2026-05-22 TAP883 ATH → LIS May 22, 11:10 UTCMay 22, 13:55 UTC2h 45m
2026-05-22 TAP882 LIS → ATH May 22, 07:00 UTCMay 22, 09:35 UTC2h 35m
2026-05-21 TAP403Z MRS → LIS May 21, 18:50 UTCMay 21, 20:45 UTC1h 55m
2026-05-21 TAP02MR LIS → MRS May 21, 15:45 UTCMay 21, 17:30 UTC1h 45m
2026-05-20 TAP1906 FAO → LIS May 20, 17:15 UTCMay 20, 17:45 UTC30m
2026-05-20 TAP1905 LIS → FAO May 20, 15:35 UTCMay 20, 16:05 UTC30m
2026-05-20 TAP471A LYS → LIS May 20, 11:10 UTCMay 20, 13:30 UTC2h 20m
2026-05-20 TAP70YS LIS → LYS May 20, 08:00 UTCMay 20, 10:10 UTC2h 10m
2026-05-19 TAP1455 RAK → LIS May 19, 16:55 UTCMay 19, 17:45 UTC50m
2026-05-19 TAP1454 LIS → RAK May 19, 14:10 UTCMay 19, 15:15 UTC1h 5m
2026-05-19 TAP429 ORY → LIS May 19, 08:30 UTCMay 19, 10:45 UTC2h 15m
2026-05-19 TAP428 LIS → ORY May 19, 05:15 UTCMay 19, 07:20 UTC2h 5m

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?
Yes. Mode-S 49521A is currently airborne.
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, TAP85CE, TAP3834, TAP1716.