Apparatus

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sensors Mode-S transponder

34754C

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-OBY · AIRBUS A-321neo

Hex
34754C
Octal
15072514
Decimal
3,437,900
Country
ES
Tail
EC-OBY
Type
A21N
Broadcasting now · callsign IBS15UK · 34,975 ft
Flights observed
547
Distinct callsigns
20
Country
ES
Last broadcast
Jul 26, 23:00 UTC

Current position

34754C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 34754C falls within the block assigned to Spain (ES) by ICAO Annex 10, Volume III. Every aircraft registered in Spain 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
IBS1614 Iberia Express 8 2026-07-25
IBS1590 Iberia Express 8 2026-07-18
IBS16NQ - 7 2026-07-14
IBS1925 Iberia Express 6 2026-07-25
IBS16ZD Iberia Express 6 2026-05-21
IBS16RT Iberia Express 6 2026-05-30
IBS16QF - 6 2026-07-07
IBS1695 - 6 2026-07-13
IBS1527 - 6 2026-07-15
IBS1926 Iberia Express 5 2026-07-26
IBS18BW Iberia Express 5 2026-05-28
IBS16YR Iberia Express 5 2026-05-21
IBS16PT Iberia Express 5 2026-06-19
IBS16MX Iberia Express 5 2026-04-28
IBS16KN Iberia Express 5 2026-07-25
IBS16HT Iberia Express 5 2026-06-26
IBS16EA Iberia Express 5 2026-06-26
IBS1581 Iberia Express 5 2026-07-04
IBS1531 Iberia Express 5 2026-07-23
IBS1528 - 5 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 IBS1706 IBZ → MAD Jul 26, 22:50 UTCJul 26, 23:00 UTC10m
2026-07-26 IBS17TR MAD → IBZ Jul 26, 20:55 UTCJul 26, 21:40 UTC45m
2026-07-26 IBS15NL MAD → TFN Jul 26, 17:30 UTCJul 26, 19:25 UTC1h 55m
2026-07-26 IBS15TC MAD → ACE Jul 26, 14:00 UTCJul 26, 15:55 UTC1h 55m
2026-07-26 IBS1502 ACE → MAD Jul 26, 10:35 UTCJul 26, 12:35 UTC2h 0m
2026-07-26 IBS1501 MAD → ACE Jul 26, 07:00 UTCJul 26, 09:10 UTC2h 10m
2026-07-26 IBS1926 KEF → MAD Jul 26, 01:20 UTCJul 26, 04:55 UTC3h 35m
2026-07-25 IBS1925 MAD → KEF Jul 25, 19:50 UTCJul 26, 00:05 UTC4h 15m
2026-07-25 IBS1614 LPA → MAD Jul 25, 16:10 UTCJul 25, 18:10 UTC2h 0m
2026-07-25 IBS16KN MAD → LPA Jul 25, 12:10 UTCJul 25, 14:25 UTC2h 15m
2026-07-25 IBS16KQ MAD → LPA Jul 25, 05:05 UTCJul 25, 10:45 UTC5h 40m
2026-07-24 IBS1684 PMI → MAD Jul 24, 22:05 UTCJul 24, 23:05 UTC1h 0m
2026-07-24 IBS1683 MAD → PMI Jul 24, 20:05 UTCJul 24, 20:55 UTC50m
2026-07-24 IBS1615 MAD → LPA Jul 24, 12:45 UTCJul 24, 18:55 UTC6h 10m
2026-07-24 IBS15RN FUE → MAD Jul 24, 09:20 UTCJul 24, 11:30 UTC2h 10m
2026-07-24 IBS15UA MAD → TFS Jul 24, 05:25 UTCJul 24, 08:00 UTC2h 35m
2026-07-23 IBS1676 PMI → MAD Jul 23, 19:55 UTCJul 23, 21:00 UTC1h 5m
2026-07-23 IBS16DF MAD → PMI Jul 23, 17:55 UTCJul 23, 18:50 UTC55m
2026-07-23 IBS1532 SPC → MAD Jul 23, 14:30 UTCJul 23, 16:35 UTC2h 5m
2026-07-23 IBS1531 MAD → SPC Jul 23, 10:45 UTCJul 23, 13:25 UTC2h 40m
2026-07-23 IBS16SZ IBZ → MAD Jul 23, 08:30 UTCJul 23, 09:15 UTC45m
2026-07-23 IBS16ZZ MAD → IBZ Jul 23, 06:35 UTCJul 23, 07:25 UTC50m
2026-07-23 IBS1926 KEF → MAD Jul 23, 01:00 UTCJul 23, 05:00 UTC4h 0m
2026-07-22 IBS1925 MAD → KEF Jul 22, 19:50 UTCJul 22, 23:45 UTC3h 55m
2026-07-22 IBS1668 - Jul 22, 16:15 UTCJul 22, 17:15 UTC1h 0m
2026-07-22 IBS16LN - Jul 22, 14:10 UTCJul 22, 15:05 UTC55m
2026-07-22 IBS16GJ IBZ → MAD Jul 22, 12:00 UTCJul 22, 12:50 UTC50m
2026-07-22 IBS16GJ IBZ → MAD Jul 22, 11:10 UTCJul 22, 11:15 UTC5m
2026-07-21 IBS15KN TFN → MAD Jul 21, 20:05 UTCJul 21, 22:20 UTC2h 15m
2026-07-21 IBS15BP MAD → TFS Jul 21, 16:40 UTCJul 21, 19:00 UTC2h 20m
2026-07-21 IBS1852 RAK → MAD Jul 21, 12:15 UTCJul 21, 13:50 UTC1h 35m
2026-07-21 IBS1851 - Jul 21, 09:35 UTCJul 21, 10:55 UTC1h 20m
2026-07-20 IBS16KM MAD → LPA Jul 20, 18:50 UTCJul 21, 07:50 UTC12h 59m
2026-07-20 IBS15GR TFS → MAD Jul 20, 14:40 UTCJul 20, 16:50 UTC2h 10m
2026-07-20 IBS15FB MAD → TFS Jul 20, 10:40 UTCJul 20, 13:15 UTC2h 35m
2026-07-20 IBS1656 - Jul 20, 08:25 UTCJul 20, 09:25 UTC1h 0m
2026-07-20 IBS16EW - Jul 20, 06:10 UTCJul 20, 07:05 UTC55m
2026-07-19 IBS1633 MAD → LPA Jul 19, 22:35 UTCJul 20, 04:30 UTC5h 55m
2026-07-19 IBS17VB MAH → MAD Jul 19, 20:10 UTCJul 19, 21:20 UTC1h 10m
2026-07-19 IBS17ER - Jul 19, 18:00 UTCJul 19, 19:05 UTC1h 5m
2026-07-19 IBS15GR TFS → MAD Jul 19, 14:20 UTCJul 19, 16:30 UTC2h 10m
2026-07-19 IBS15FB MAD → TFS Jul 19, 10:40 UTCJul 19, 13:05 UTC2h 25m
2026-07-18 IBS1864 LGW → MAD Jul 18, 22:55 UTCJul 19, 00:50 UTC1h 55m
2026-07-18 IBS18QR - Jul 18, 20:05 UTCJul 18, 21:50 UTC1h 45m
2026-07-18 IBS15NJ - Jul 18, 13:30 UTCJul 18, 15:50 UTC2h 20m
2026-07-18 IBS15ZU - Jul 18, 10:00 UTCJul 18, 12:20 UTC2h 20m
2026-07-18 IBS1590 TFN → MAD Jul 18, 06:10 UTCJul 18, 08:30 UTC2h 20m
2026-07-17 IBS15ZT - Jul 17, 19:09 UTCJul 17, 21:30 UTC2h 20m
2026-07-17 IBS15AA - Jul 17, 15:49 UTCJul 17, 18:00 UTC2h 10m
2026-07-17 IBS15YM - Jul 17, 12:19 UTCJul 17, 14:39 UTC2h 20m

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 EC-OBY page for operator, model, and routing details .

Mode-S 34754C frequently asked

What is Mode-S code 34754C?
34754C is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-OBY.
Where is Mode-S 34754C registered?
Mode-S code 34754C is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 34754C broadcasting right now?
Yes. Mode-S 34754C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 34754C, octal 15072514, decimal 3,437,900.
What flights does 34754C operate?
Mode-S 34754C has broadcast 20 distinct callsigns, including IBS1614, IBS1590, IBS16NQ, IBS1925, IBS16ZD.