Apparatus

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sensors Mode-S transponder

AC7E1C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N904AV · operated by UMB BANK NA TRUSTEE

Hex
AC7E1C
Octal
53077034
Decimal
11,304,476
Country
US
Tail
N904AV
Type
A20N
No current signal · last broadcast Jul 26, 23:00 UTC
Flights observed
332
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 23:00 UTC

Last known position

Most recent position reported by Mode-S AC7E1C.

Country allocation

The ICAO 24-bit address AC7E1C 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 20 distinct

Callsign Airline Flights Last seen
TAI568 - 12 2026-07-17
TAI562 Avianca El Salvador 12 2026-07-26
TAI561 Avianca El Salvador 12 2026-07-25
TAI560 Avianca El Salvador 12 2026-07-24
LRC641 LACSA 12 2026-06-17
TAI563 Avianca El Salvador 11 2026-07-26
LRC651 LACSA 11 2026-07-18
LRC640 LACSA 11 2026-06-16
TAI552 - 10 2026-07-16
TAI553 - 9 2026-07-16
LRC650 LACSA 9 2026-07-18
TAI569 - 8 2026-07-17
TAI583 Avianca El Salvador 6 2026-07-23
TAI582 Avianca El Salvador 6 2026-07-23
TAI327 - 6 2026-07-20
TAI326 - 6 2026-07-19
LRC605 LACSA 6 2026-05-29
LRC604 LACSA 6 2026-05-23
TAI431 Avianca El Salvador 5 2026-06-05
TAI368 - 5 2026-07-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TAI563 SFO → SAL Jul 26, 21:35 UTCJul 26, 23:00 UTC1h 25m
2026-07-26 TAI562 SAL → SFO Jul 26, 14:10 UTCJul 26, 19:20 UTC5h 10m
2026-07-26 LRC661 JFK → GYE Jul 26, 07:15 UTCJul 26, 11:20 UTC4h 5m
2026-07-26 LRC660 SAL → JFK Jul 26, 01:15 UTCJul 26, 04:50 UTC3h 35m
2026-07-25 TAI397 MIA → MGA Jul 25, 18:05 UTCJul 26, 01:10 UTC7h 5m
2026-07-25 TAI310 SAL → MIA Jul 25, 14:10 UTCJul 25, 16:10 UTC2h 0m
2026-07-25 TAI561 SFO → SAL Jul 25, 07:25 UTCJul 25, 12:30 UTC5h 5m
2026-07-24 TAI560 SAL → SFO Jul 24, 23:55 UTCJul 25, 05:00 UTC5h 5m
2026-07-24 TAI311 MIA → SAL Jul 24, 20:00 UTCJul 24, 22:00 UTC2h 0m
2026-07-24 TAI396 MGA → MIA Jul 24, 17:00 UTCJul 24, 17:35 UTC35m
2026-07-24 TAI579 GUA → SAL Jul 24, 11:25 UTCJul 24, 11:40 UTC15m
2026-07-24 TAI578 SAL → GUA Jul 24, 04:55 UTCJul 24, 05:15 UTC20m
2026-07-23 TAI583 IAD → SAL Jul 23, 22:40 UTCJul 24, 02:05 UTC3h 25m
2026-07-23 TAI582 SAL → IAD Jul 23, 16:00 UTCJul 23, 19:50 UTC3h 50m
2026-07-23 TAI433 MEX → SAL Jul 23, 10:25 UTCJul 23, 11:55 UTC1h 30m
2026-07-23 TAI432 SAL → MEX Jul 23, 05:15 UTCJul 23, 07:00 UTC1h 45m
2026-07-22 TAI583 IAD → SAL Jul 22, 22:05 UTCJul 23, 01:45 UTC3h 40m
2026-07-22 TAI582 SAL → IAD Jul 22, 15:50 UTCJul 22, 19:35 UTC3h 45m
2026-07-22 TAI309 MIA → SAL Jul 22, 11:40 UTCJul 22, 13:30 UTC1h 50m
2026-07-22 TAI308 SAL → MIA Jul 22, 04:30 UTCJul 22, 05:25 UTC55m
2026-07-21 TAI527 LAS → SAL Jul 21, 22:05 UTCJul 22, 02:35 UTC4h 30m
2026-07-21 TAI526 - Jul 21, 15:20 UTCJul 21, 19:45 UTC4h 25m
2026-07-20 TAI583 IAD → SAL Jul 20, 21:45 UTCJul 21, 01:45 UTC3h 59m
2026-07-20 TAI582 SAL → IAD Jul 20, 16:00 UTCJul 20, 19:50 UTC3h 50m
2026-07-20 TAI327 - Jul 20, 06:10 UTCJul 20, 10:35 UTC4h 25m
2026-07-19 TAI326 - Jul 19, 23:55 UTCJul 20, 04:25 UTC4h 30m
2026-07-19 TAI441 - Jul 19, 19:35 UTCJul 19, 22:15 UTC2h 40m
2026-07-19 TAI440 SAL → DFW Jul 19, 13:55 UTCJul 19, 16:50 UTC2h 55m
2026-07-19 TAI327 - Jul 19, 06:10 UTCJul 19, 10:40 UTC4h 30m
2026-07-18 TAI326 - Jul 18, 23:55 UTCJul 19, 04:20 UTC4h 25m
2026-07-18 LRC651 CUN → SAL Jul 18, 21:05 UTCJul 18, 22:10 UTC1h 5m
2026-07-18 LRC650 SJO → GUA Jul 18, 18:15 UTCJul 18, 19:30 UTC1h 15m
2026-07-18 TAI561 - Jul 18, 07:25 UTCJul 18, 12:25 UTC5h 0m
2026-07-17 TAI560 - Jul 17, 23:50 UTCJul 18, 05:15 UTC5h 26m
2026-07-17 TAI569 - Jul 17, 11:04 UTCJul 17, 15:05 UTC4h 0m
2026-07-17 TAI568 - Jul 17, 05:35 UTCJul 17, 09:20 UTC3h 45m
2026-07-17 TAI568 - Jul 17, 02:05 UTCJul 17, 05:30 UTC3h 25m
2026-07-17 TAI313 - Jul 17, 00:25 UTCJul 17, 00:55 UTC30m
2026-07-16 TAI553 - Jul 16, 21:30 UTCJul 16, 21:45 UTC15m
2026-07-16 TAI553 SFO → GUA Jul 16, 15:00 UTCJul 16, 20:09 UTC5h 10m
2026-07-16 TAI552 - Jul 16, 08:00 UTCJul 16, 12:30 UTC4h 30m
2026-07-16 TAI552 - Jul 16, 07:20 UTCJul 16, 07:30 UTC10m
2026-07-16 TAI552 - Jul 16, 05:30 UTCJul 16, 05:50 UTC20m
2026-07-15 TAI563 - Jul 15, 22:05 UTCJul 16, 03:10 UTC5h 5m
2026-07-15 TAI562 - Jul 15, 14:05 UTCJul 15, 19:25 UTC5h 20m
2026-07-15 TAI579 - Jul 15, 11:25 UTCJul 15, 11:40 UTC15m
2026-07-15 TAI556 - Jul 15, 05:30 UTCJul 15, 05:55 UTC25m
2026-07-14 TAI585 - Jul 14, 23:45 UTCJul 15, 03:20 UTC3h 35m
2026-07-14 TAI584 - Jul 14, 18:00 UTCJul 14, 21:55 UTC3h 55m
2026-07-14 TAI561 - Jul 14, 07:20 UTCJul 14, 12:30 UTC5h 10m

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 N904AV page for operator, model, and routing details .

Mode-S AC7E1C frequently asked

What is Mode-S code AC7E1C?
AC7E1C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N904AV.
Where is Mode-S AC7E1C registered?
Mode-S code AC7E1C 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 AC7E1C broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 23:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC7E1C, octal 53077034, decimal 11,304,476.
What flights does AC7E1C operate?
Mode-S AC7E1C has broadcast 20 distinct callsigns, including TAI568, TAI562, TAI561, TAI560, LRC641.