Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

491115

ICAO 24-bit transponder address · allocated to Portugal

Currently assigned to CS-DHU · TECNAM P-2008

Hex
491115
Octal
22210425
Decimal
4,788,501
Country
PT
Tail
CS-DHU
Type
P208
Broadcasting now · callsign RVP257 · 4,500 ft
Flights observed
105
Distinct callsigns
20
Country
PT
Last broadcast
41m ago

Current position

491115 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 491115 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
RVP268 - 6 2026-07-02
RVP276 - 5 2026-06-09
RVP267 - 4 2026-07-02
RVP256 - 4 2026-07-09
RVP255 - 4 2026-06-28
RVP275 - 3 2026-06-09
RVP272 - 3 2026-05-31
RVP266 - 3 2026-05-30
RVP265 - 3 2026-06-02
RVP258 - 3 2026-07-03
RVP254 - 3 2026-07-03
RVP250 - 3 2026-07-03
RVP248 - 3 2026-07-07
RVP279 - 2 2026-05-29
RVP278 - 2 2026-05-27
RVP277 - 2 2026-05-27
RVP271 - 2 2026-07-07
RVP269 - 2 2026-07-08
RVP263 - 2 2026-06-02
RVP259 - 2 2026-07-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 RVP257 - Jul 9, 16:00 UTCJul 9, 17:15 UTC1h 15m
2026-07-09 RVP256 - Jul 9, 13:05 UTCJul 9, 14:45 UTC1h 40m
2026-07-08 RVP269 - Jul 8, 14:15 UTCJul 8, 15:00 UTC45m
2026-07-08 RVP142 - Jul 8, 08:35 UTCJul 8, 09:20 UTC45m
2026-07-07 RVP248 - Jul 7, 17:45 UTCJul 7, 18:55 UTC1h 10m
2026-07-07 RVP235 - Jul 7, 13:20 UTCJul 7, 16:00 UTC2h 40m
2026-07-07 RVP271 - Jul 7, 11:30 UTCJul 7, 11:45 UTC15m
2026-07-07 RVP134 - Jul 7, 09:40 UTCJul 7, 10:30 UTC50m
2026-07-06 RVP235 - Jul 6, 15:00 UTCJul 6, 18:05 UTC3h 5m
2026-07-06 RVP248 - Jul 6, 12:55 UTCJul 6, 14:00 UTC1h 5m
2026-07-06 RVP133 - Jul 6, 09:05 UTCJul 6, 11:45 UTC2h 40m
2026-07-05 RVP247 - Jul 5, 10:45 UTCJul 5, 12:15 UTC1h 30m
2026-07-05 RVP246A - Jul 5, 06:30 UTCJul 5, 07:25 UTC55m
2026-07-03 RVP250 - Jul 3, 20:55 UTCJul 3, 21:45 UTC50m
2026-07-03 RVP259 - Jul 3, 16:25 UTCJul 3, 17:20 UTC55m
2026-07-03 RVP258 - Jul 3, 14:20 UTCJul 3, 15:20 UTC1h 0m
2026-07-03 RVP258 - Jul 3, 13:15 UTCJul 3, 13:45 UTC30m
2026-07-03 RVP157 - Jul 3, 10:20 UTCJul 3, 11:15 UTC55m
2026-07-03 RVP254 - Jul 3, 08:25 UTCJul 3, 09:30 UTC1h 5m
2026-07-03 RVP254 - Jul 3, 07:10 UTCJul 3, 07:50 UTC40m
2026-07-02 RVP255A - Jul 2, 20:45 UTCJul 2, 21:50 UTC1h 5m
2026-07-02 RVP268 - Jul 2, 18:40 UTCJul 2, 19:35 UTC55m
2026-07-02 RVP268 - Jul 2, 17:25 UTCJul 2, 17:55 UTC30m
2026-07-02 RVP166 - Jul 2, 15:40 UTCJul 2, 16:25 UTC45m
2026-07-02 RVP267 - Jul 2, 13:10 UTCJul 2, 14:35 UTC1h 25m
2026-07-01 RVP242 - Jul 1, 20:55 UTCJul 1, 21:50 UTC55m
2026-07-01 RVP236 - Jul 1, 11:25 UTCJul 1, 12:15 UTC50m
2026-07-01 RVP140 - Jul 1, 06:10 UTCJul 1, 06:55 UTC45m
2026-06-30 RVP250 - Jun 30, 20:55 UTCJun 30, 21:45 UTC50m
2026-06-30 RVP158 - Jun 30, 13:30 UTCJun 30, 14:25 UTC55m
2026-06-30 RVP257 - Jun 30, 11:35 UTCJun 30, 12:25 UTC50m
2026-06-30 RVP156 - Jun 30, 09:55 UTCJun 30, 10:35 UTC40m
2026-06-30 RVP155 - Jun 30, 07:20 UTCJun 30, 08:10 UTC50m
2026-06-30 RVP154 - Jun 30, 05:30 UTCJun 30, 06:15 UTC45m
2026-06-29 RVP239 - Jun 29, 21:05 UTCJun 29, 21:54 UTC50m
2026-06-29 RVP237 - Jun 29, 11:55 UTCJun 29, 13:59 UTC2h 5m
2026-06-29 RVP136 - Jun 29, 10:10 UTCJun 29, 10:55 UTC45m
2026-06-29 RVP134 - Jun 29, 08:29 UTCJun 29, 09:14 UTC45m
2026-06-29 RVP240 - Jun 29, 06:19 UTCJun 29, 07:20 UTC1h 0m
2026-06-28 RVP255 - Jun 28, 11:14 UTCJun 28, 13:10 UTC1h 55m
2026-06-28 RVP153 - Jun 28, 05:49 UTCJun 28, 06:44 UTC55m
2026-06-27 RVP240 - Jun 27, 10:50 UTCJun 27, 12:55 UTC2h 5m
2026-06-10 RVP233 - Jun 10, 09:15 UTCJun 10, 10:05 UTC50m
2026-06-10 RVP232 - Jun 10, 06:35 UTCJun 10, 07:55 UTC1h 20m
2026-06-09 RVP276 - Jun 9, 11:35 UTCJun 9, 13:50 UTC2h 15m
2026-06-09 RVP275 - Jun 9, 09:55 UTCJun 9, 10:20 UTC25m
2026-06-08 RVP230 - Jun 8, 13:30 UTCJun 8, 14:05 UTC35m
2026-06-07 RVP156 - Jun 7, 12:15 UTCJun 7, 13:10 UTC55m
2026-06-07 RVP268 - Jun 7, 08:55 UTCJun 7, 10:10 UTC1h 15m
2026-06-06 RVP248 - Jun 6, 10:04 UTCJun 6, 12:40 UTC2h 35m

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

Mode-S 491115 frequently asked

What is Mode-S code 491115?
491115 is an ICAO 24-bit transponder address. Allocated to Portugal. Assigned to CS-DHU.
Where is Mode-S 491115 registered?
Mode-S code 491115 is allocated to Portugal (PT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 491115 broadcasting right now?
Yes. Mode-S 491115 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 491115, octal 22210425, decimal 4,788,501.
What flights does 491115 operate?
Mode-S 491115 has broadcast 20 distinct callsigns, including RVP268, RVP276, RVP267, RVP256, RVP255.