Apparatus

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sensors Mode-S transponder

E4A54D

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PR-GKC · BOEING 737-800

Hex
E4A54D
Octal
71122515
Decimal
14,984,525
Country
BR
Tail
PR-GKC
Type
B738
No current signal · last broadcast 2h ago
Flights observed
356
Distinct callsigns
20
Country
BR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S E4A54D.

Country allocation

The ICAO 24-bit address E4A54D falls within the block assigned to Brazil (BR) by ICAO Annex 10, Volume III. Every aircraft registered in Brazil 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
GLO2120 - 5 2026-07-07
GLO2136 Gol Linhas Aéreas Inteligentes 4 2026-05-13
GLO2059 - 4 2026-07-02
GLO2056 Gol Linhas Aéreas Inteligentes 4 2026-05-05
GLO1770 Gol Linhas Aéreas Inteligentes 4 2026-05-22
GLO1648 - 4 2026-06-29
GLO1559 Gol Linhas Aéreas Inteligentes 4 2026-04-25
GLO1444 - 4 2026-07-11
GLO1409 Gol Linhas Aéreas Inteligentes 4 2026-06-17
GLO1207 - 4 2026-07-07
GLO2090 Gol Linhas Aéreas Inteligentes 3 2026-05-30
GLO1965 - 3 2026-07-11
GLO1873 Gol Linhas Aéreas Inteligentes 3 2026-07-08
GLO1690 - 3 2026-07-10
GLO1687 Gol Linhas Aéreas Inteligentes 3 2026-06-28
GLO1658 - 3 2026-06-26
GLO1655 - 3 2026-07-12
GLO1649 Gol Linhas Aéreas Inteligentes 3 2026-05-27
GLO1558 - 3 2026-07-14
GLO1555 Gol Linhas Aéreas Inteligentes 3 2026-06-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 GLO1995 - Jul 14, 07:10 UTCJul 14, 07:30 UTC20m
2026-07-14 GLO1558 - Jul 14, 01:20 UTCJul 14, 04:20 UTC3h 0m
2026-07-13 GLO1387 - Jul 13, 21:50 UTCJul 13, 23:10 UTC1h 20m
2026-07-13 GLO1348 - Jul 13, 19:05 UTCJul 13, 20:10 UTC1h 5m
2026-07-13 GLO1615 FOR → CGH Jul 13, 07:15 UTCJul 13, 17:15 UTC10h 0m
2026-07-13 GLO1558 - Jul 13, 02:55 UTCJul 13, 05:55 UTC3h 0m
2026-07-12 GLO1655 - Jul 12, 18:01 UTCJul 13, 00:01 UTC6h 0m
2026-07-12 GLO1385 - Jul 12, 15:30 UTCJul 12, 16:35 UTC1h 5m
2026-07-12 GLO1384 - Jul 12, 13:25 UTCJul 12, 14:25 UTC1h 0m
2026-07-12 GLO1231 - Jul 12, 09:40 UTCJul 12, 11:35 UTC1h 55m
2026-07-12 GLO1856 - Jul 12, 00:45 UTCJul 12, 01:35 UTC50m
2026-07-11 GLO1985 - Jul 11, 21:55 UTCJul 11, 23:00 UTC1h 5m
2026-07-11 GLO1984 - Jul 11, 19:35 UTCJul 11, 20:45 UTC1h 10m
2026-07-11 GLO1965 - Jul 11, 11:40 UTCJul 11, 18:25 UTC6h 45m
2026-07-11 GLO1444 - Jul 11, 09:10 UTCJul 11, 09:50 UTC40m
2026-07-10 GLO1417 - Jul 10, 20:25 UTCJul 11, 00:10 UTC3h 45m
2026-07-10 GLO1690 - Jul 10, 12:10 UTCJul 10, 17:20 UTC5h 10m
2026-07-10 GLO1495 - Jul 10, 03:00 UTCJul 10, 09:45 UTC6h 45m
2026-07-09 GLO1735 - Jul 9, 07:35 UTCJul 10, 01:45 UTC18h 10m
2026-07-09 GLO2058 - Jul 9, 02:10 UTCJul 9, 05:00 UTC2h 50m
2026-07-08 GLO1895 - Jul 8, 20:15 UTCJul 9, 00:50 UTC4h 35m
2026-07-08 GLO1873 CNF → CGH Jul 8, 17:25 UTCJul 8, 18:40 UTC1h 15m
2026-07-08 GLO1797 - Jul 8, 08:50 UTCJul 8, 13:35 UTC4h 45m
2026-07-07 GLO1284 - Jul 7, 22:00 UTCJul 7, 22:55 UTC55m
2026-07-07 GLO1261 - Jul 7, 20:05 UTCJul 7, 20:40 UTC35m
2026-07-07 GLO1254 - Jul 7, 18:00 UTCJul 7, 18:50 UTC50m
2026-07-07 GLO1207 - Jul 7, 13:35 UTCJul 7, 16:10 UTC2h 35m
2026-07-07 GLO2120 - Jul 7, 03:10 UTCJul 7, 12:05 UTC8h 55m
2026-07-06 GLO1854 - Jul 6, 20:05 UTCJul 7, 00:20 UTC4h 15m
2026-07-06 GLO1965 - Jul 6, 11:30 UTCJul 6, 18:10 UTC6h 40m
2026-07-06 GLO1444 - Jul 6, 09:10 UTCJul 6, 09:45 UTC35m
2026-07-05 GLO1417 - Jul 5, 14:40 UTCJul 5, 23:35 UTC8h 55m
2026-07-05 GLO1745 - Jul 5, 09:15 UTCJul 5, 13:25 UTC4h 10m
2026-07-05 GLO2042 - Jul 5, 01:45 UTCJul 5, 02:55 UTC1h 10m
2026-07-04 GLO1903 - Jul 4, 23:00 UTCJul 4, 23:20 UTC20m
2026-07-04 GLO2120 - Jul 4, 03:00 UTCJul 4, 19:40 UTC16h 40m
2026-07-04 GLO2120 - Jul 4, 02:00 UTCJul 4, 02:10 UTC10m
2026-07-03 GLO1895 CGH → GIG Jul 3, 18:15 UTCJul 4, 00:40 UTC6h 25m
2026-07-03 GLO1203 - Jul 3, 15:50 UTCJul 3, 16:25 UTC35m
2026-07-03 GLO1200 CGH → FLN Jul 3, 14:05 UTCJul 3, 14:25 UTC20m
2026-07-03 GLO1397 - Jul 3, 11:20 UTCJul 3, 12:20 UTC1h 0m
2026-07-03 GLO1396 - Jul 3, 00:40 UTCJul 3, 01:30 UTC50m
2026-07-02 GLO1221 - Jul 2, 20:10 UTCJul 2, 22:55 UTC2h 45m
2026-07-02 GLO2059 - Jul 2, 09:05 UTCJul 2, 18:30 UTC9h 25m
2026-07-01 GLO1772 - Jul 1, 11:30 UTCJul 2, 02:45 UTC15h 15m
2026-07-01 GLO1857 - Jul 1, 09:20 UTCJul 1, 10:15 UTC55m
2026-07-01 GLO1230 - Jul 1, 01:30 UTCJul 1, 02:00 UTC30m
2026-06-30 GLO1579 - Jun 30, 20:55 UTCJun 30, 23:25 UTC2h 30m
2026-06-30 GLO1578 - Jun 30, 17:20 UTCJun 30, 19:35 UTC2h 15m
2026-06-30 GLO1169 - Jun 30, 14:35 UTCJun 30, 15:25 UTC50m

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 PR-GKC page for operator, model, and routing details .

Mode-S E4A54D frequently asked

What is Mode-S code E4A54D?
E4A54D is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PR-GKC.
Where is Mode-S E4A54D registered?
Mode-S code E4A54D is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A54D broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A54D, octal 71122515, decimal 14,984,525.
What flights does E4A54D operate?
Mode-S E4A54D has broadcast 20 distinct callsigns, including GLO2120, GLO2136, GLO2059, GLO2056, GLO1770.