Apparatus

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sensors Mode-S transponder

AC7EA2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N904GD · BRITTEN-NORMAN BN-2 Islander · operated by AIR CHARTER INC DBA, AIR FLAMENCO

Hex
AC7EA2
Octal
53077242
Decimal
11,304,610
Country
US
Tail
N904GD
Type
BN2P
No current signal · last broadcast 3d ago
Flights observed
92
Distinct callsigns
8
Country
US
Last broadcast
3d ago

Last known position

Most recent position reported by Mode-S AC7EA2.

Country allocation

The ICAO 24-bit address AC7EA2 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 8 distinct

Callsign Airline Flights Last seen
N904GD - 44 2026-06-04
WAF904 - 26 2026-07-10
WAF2104 Flamenco Airways 5 2026-06-20
WAF1203 Flamenco Airways 5 2026-06-20
WAF1204 Flamenco Airways 4 2026-06-13
WAF1201 Flamenco Airways 4 2026-06-20
WAF2103 Flamenco Airways 2 2026-06-20
WAF2102 Flamenco Airways 2 2026-06-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-10 WAF904 - Jul 10, 14:10 UTCJul 10, 14:25 UTC15m
2026-07-08 WAF904 - Jul 8, 19:15 UTCJul 8, 19:30 UTC15m
2026-07-08 WAF904 - Jul 8, 16:25 UTCJul 8, 17:30 UTC1h 5m
2026-06-27 WAF904 - Jun 27, 14:29 UTCJun 27, 14:45 UTC15m
2026-06-27 WAF904 - Jun 27, 13:40 UTCJun 27, 13:55 UTC15m
2026-06-25 WAF904 - Jun 25, 09:50 UTCJun 25, 09:59 UTC10m
2026-06-23 WAF904 - Jun 23, 17:09 UTCJun 23, 17:34 UTC25m
2026-06-23 WAF904 - Jun 23, 16:14 UTCJun 23, 16:35 UTC20m
2026-06-23 WAF904 - Jun 23, 11:45 UTCJun 23, 12:09 UTC25m
2026-06-22 WAF904 - Jun 22, 21:30 UTCJun 22, 21:45 UTC15m
2026-06-22 WAF904 - Jun 22, 20:04 UTCJun 22, 20:24 UTC20m
2026-06-22 WAF904 - Jun 22, 19:09 UTCJun 22, 19:29 UTC20m
2026-06-22 WAF904 - Jun 22, 17:00 UTCJun 22, 17:25 UTC25m
2026-06-22 WAF904 - Jun 22, 16:14 UTCJun 22, 16:29 UTC15m
2026-06-22 WAF904 - Jun 22, 11:39 UTCJun 22, 12:05 UTC25m
2026-06-20 WAF2104 NRR → SIG Jun 20, 21:34 UTCJun 20, 21:49 UTC15m
2026-06-20 WAF2103 CPX → SIG Jun 20, 19:40 UTCJun 20, 20:34 UTC55m
2026-06-20 WAF1203 SIG → CPX Jun 20, 17:24 UTCJun 20, 17:49 UTC25m
2026-06-20 WAF2102 CPX → SIG Jun 20, 16:14 UTCJun 20, 16:29 UTC15m
2026-06-20 WAF1201 SIG → CPX Jun 20, 11:49 UTCJun 20, 12:04 UTC15m
2026-06-15 WAF904 - Jun 15, 21:35 UTCJun 15, 21:50 UTC15m
2026-06-15 WAF904 - Jun 15, 20:25 UTCJun 15, 20:50 UTC25m
2026-06-15 WAF904 - Jun 15, 19:39 UTCJun 15, 19:55 UTC15m
2026-06-15 WAF904 - Jun 15, 11:45 UTCJun 15, 12:10 UTC25m
2026-06-13 WAF2104 NRR → SIG Jun 13, 21:35 UTCJun 13, 21:50 UTC15m
2026-06-13 WAF1204 SIG → CPX Jun 13, 20:25 UTCJun 13, 20:40 UTC15m
2026-06-13 WAF2103 CPX → SIG Jun 13, 19:20 UTCJun 13, 19:40 UTC20m
2026-06-13 WAF2102 CPX → SIG Jun 13, 16:15 UTCJun 13, 17:25 UTC1h 10m
2026-06-13 WAF1201 SIG → CPX Jun 13, 11:30 UTCJun 13, 11:50 UTC20m
2026-06-12 WAF2104 NRR → SIG Jun 12, 22:00 UTCJun 12, 22:10 UTC10m
2026-06-12 WAF1204 SIG → CPX Jun 12, 20:35 UTCJun 12, 20:50 UTC15m
2026-06-12 WAF1203 SIG → CPX Jun 12, 18:20 UTCJun 12, 18:30 UTC10m
2026-06-04 N904GD - Jun 4, 21:20 UTCJun 4, 21:35 UTC15m
2026-05-30 WAF1203 SIG → CPX May 30, 17:30 UTCMay 30, 18:05 UTC35m
2026-05-28 WAF904 - May 28, 00:05 UTCMay 28, 00:15 UTC10m
2026-05-27 WAF904 - May 27, 02:24 UTCMay 27, 02:59 UTC35m
2026-05-25 WAF904 - May 25, 23:14 UTCMay 25, 23:24 UTC10m
2026-05-25 WAF904 - May 25, 17:20 UTCMay 25, 17:50 UTC30m
2026-05-25 WAF904 - May 25, 16:10 UTCMay 25, 16:25 UTC15m
2026-05-25 WAF904 - May 25, 11:55 UTCMay 25, 12:20 UTC25m
2026-05-23 WAF2104 NRR → SIG May 23, 21:45 UTCMay 23, 21:55 UTC10m
2026-05-23 WAF1204 SIG → CPX May 23, 20:10 UTCMay 23, 20:25 UTC15m
2026-05-23 WAF1203 SIG → CPX May 23, 17:20 UTCMay 23, 17:30 UTC10m
2026-05-23 WAF1201 SIG → CPX May 23, 11:40 UTCMay 23, 11:55 UTC15m
2026-05-22 WAF2104 NRR → SIG May 22, 21:25 UTCMay 22, 21:35 UTC10m
2026-05-22 WAF1204 SIG → CPX May 22, 20:25 UTCMay 22, 20:40 UTC15m
2026-05-22 WAF1203 SIG → CPX May 22, 17:15 UTCMay 22, 17:35 UTC20m
2026-05-22 WAF904 - May 22, 16:25 UTCMay 22, 16:35 UTC10m
2026-05-22 WAF1201 SIG → CPX May 22, 12:00 UTCMay 22, 12:15 UTC15m
2026-05-21 N904GD - May 21, 21:55 UTCMay 21, 22:10 UTC15m

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 N904GD page for operator, model, and routing details .

Mode-S AC7EA2 frequently asked

What is Mode-S code AC7EA2?
AC7EA2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N904GD.
Where is Mode-S AC7EA2 registered?
Mode-S code AC7EA2 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AC7EA2 broadcasting right now?
No active broadcast right now. Last signal was 3d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC7EA2, octal 53077242, decimal 11,304,610.
What flights does AC7EA2 operate?
Mode-S AC7EA2 has broadcast 8 distinct callsigns, including N904GD, WAF904, WAF2104, WAF1203, WAF1204.