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
Broadcasting now · callsign LRC651 · 35,975 ft
Flights observed
161
Distinct callsigns
20
Country
US
Last broadcast
2h ago

Current position

AC7E1C is currently broadcasting. Map zoomed to live position.

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
TAI562 Avianca El Salvador 9 2026-05-25
LRC641 LACSA 9 2026-05-30
LRC640 LACSA 9 2026-05-30
TAI568 Avianca El Salvador 8 2026-06-02
TAI563 Avianca El Salvador 8 2026-05-25
LRC650 LACSA 7 2026-06-02
LRC651 LACSA 6 2026-05-28
LRC605 LACSA 6 2026-05-29
LRC604 LACSA 6 2026-05-23
TAI569 Avianca El Salvador 5 2026-06-02
TAI431 Avianca El Salvador 4 2026-06-01
TAI591 Avianca El Salvador 3 2026-04-17
TAI561 Avianca El Salvador 3 2026-05-28
TAI560 Avianca El Salvador 3 2026-05-27
TAI523 Avianca El Salvador 3 2026-05-26
TAI522 Avianca El Salvador 3 2026-05-26
TAI521 Avianca El Salvador 3 2026-04-15
TAI520 Avianca El Salvador 3 2026-04-15
LRC670 LACSA 3 2026-05-24
LRC632 LACSA 3 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 LRC650 SJO → GUA Jun 2, 19:10 UTCJun 2, 19:20 UTC10m
2026-06-02 LRC650 SJO → GUA Jun 2, 18:05 UTCJun 2, 18:30 UTC25m
2026-06-02 TAI569 JFK → SAL Jun 2, 10:55 UTCJun 2, 15:15 UTC4h 20m
2026-06-02 TAI568 SAL → JFK Jun 2, 06:30 UTCJun 2, 08:50 UTC2h 20m
2026-06-02 TAI568 SAL → JFK Jun 2, 05:00 UTCJun 2, 05:15 UTC15m
2026-06-01 TAI431 MEX → SAL Jun 1, 23:10 UTCJun 2, 00:45 UTC1h 35m
2026-06-01 LRC632 SJO → MEX Jun 1, 19:20 UTCJun 1, 21:05 UTC1h 45m
2026-05-31 LRC696 BOG → SJO May 31, 13:40 UTCMay 31, 16:40 UTC3h 0m
2026-05-31 LRC691 IAD → SAL May 31, 09:15 UTCMay 31, 09:30 UTC15m
2026-05-30 LRC641 LAX → GUA May 30, 21:50 UTCMay 31, 01:11 UTC3h 21m
2026-05-30 LRC640 GUA → LAX May 30, 14:40 UTCMay 30, 19:20 UTC4h 40m
2026-05-30 LRC692 BOG → SJO May 30, 03:45 UTCMay 30, 12:55 UTC9h 10m
2026-05-29 LRC699 SJO → BOG May 29, 23:55 UTCMay 30, 00:05 UTC10m
2026-05-29 LRC605 LAX → SJO May 29, 18:45 UTCMay 29, 20:55 UTC2h 10m
2026-05-29 TAI310 SAL → MIA May 29, 15:20 UTCMay 29, 17:15 UTC1h 55m
2026-05-28 LRC651 CUN → SAL May 28, 21:00 UTCMay 28, 22:05 UTC1h 5m
2026-05-28 LRC650 SJO → GUA May 28, 18:35 UTCMay 28, 19:45 UTC1h 10m
2026-05-28 TAI573 GUA → SAL May 28, 16:45 UTCMay 28, 16:55 UTC10m
2026-05-28 TA572 GUA → IAD May 28, 15:05 UTCMay 28, 15:25 UTC20m
2026-05-28 TAI561 SFO → SAL May 28, 07:55 UTCMay 28, 12:40 UTC4h 45m
2026-05-27 TAI560 SAL → SFO May 27, 23:45 UTCMay 28, 05:50 UTC6h 5m
2026-05-27 TAI569 JFK → SAL May 27, 11:00 UTCMay 27, 15:15 UTC4h 15m
2026-05-27 TAI568 SAL → JFK May 27, 05:09 UTCMay 27, 09:00 UTC3h 50m
2026-05-26 TAI523 LAX → SAL May 26, 20:50 UTCMay 26, 22:59 UTC2h 10m
2026-05-26 TAI522 SAL → LAX May 26, 14:14 UTCMay 26, 19:15 UTC5h 0m
2026-05-25 TAI563 SFO → SAL May 25, 21:35 UTCMay 26, 02:19 UTC4h 45m
2026-05-25 TAI562 SAL → SFO May 25, 14:05 UTCMay 25, 19:40 UTC5h 34m
2026-05-25 LRC671 JFK → SAL May 25, 07:55 UTCMay 25, 12:10 UTC4h 15m
2026-05-24 LRC670 SJO → SAL May 24, 11:25 UTCMay 25, 05:55 UTC18h 30m
2026-05-24 LRC670 SJO → SAL May 24, 04:10 UTCMay 25, 03:00 UTC22h 50m
2026-05-23 LRC605 LAX → SJO May 23, 18:55 UTCMay 24, 01:30 UTC6h 35m
2026-05-23 LRC604 SJO → LAX May 23, 14:10 UTCMay 23, 16:25 UTC2h 15m
2026-05-23 TAI431 MEX → SAL May 23, 00:45 UTCMay 23, 01:00 UTC15m
2026-05-22 TAI431 MEX → SAL May 22, 23:25 UTCMay 23, 00:05 UTC40m
2026-05-22 LRC632 SJO → MEX May 22, 19:05 UTCMay 22, 20:55 UTC1h 50m
2026-05-22 TAI559 SFO → SAL May 22, 09:50 UTCMay 22, 14:30 UTC4h 40m
2026-05-22 TAI558 SAL → SFO May 22, 00:50 UTCMay 22, 06:40 UTC5h 50m
2026-05-21 LRC651 CUN → SAL May 21, 20:45 UTCMay 21, 21:50 UTC1h 5m
2026-05-21 LRC650 SJO → GUA May 21, 18:35 UTCMay 21, 19:40 UTC1h 5m
2026-05-21 TAI573 GUA → SAL May 21, 16:20 UTCMay 21, 16:35 UTC15m
2026-05-21 TAI572 GUA → IAD May 21, 14:40 UTCMay 21, 14:55 UTC15m
2026-05-20 TAI569 JFK → SAL May 20, 11:05 UTCMay 20, 15:05 UTC4h 0m
2026-05-20 TAI568 SAL → JFK May 20, 05:00 UTCMay 20, 09:15 UTC4h 15m
2026-05-19 TAI563 SFO → SAL May 19, 21:40 UTCMay 20, 02:45 UTC5h 5m
2026-05-19 TAI562 SAL → SFO May 19, 14:00 UTCMay 19, 19:20 UTC5h 20m
2026-05-19 TAI561 SFO → SAL May 19, 07:20 UTCMay 19, 12:20 UTC5h 0m
2026-05-18 TAI560 SAL → SFO May 18, 23:45 UTCMay 19, 05:15 UTC5h 30m
2026-05-18 TAI441 DFW → SAL May 18, 19:05 UTCMay 18, 21:50 UTC2h 45m
2026-05-18 TAI440 SAL → DFW May 18, 13:50 UTCMay 18, 16:55 UTC3h 5m
2026-05-17 TAI523 LAX → SAL May 17, 21:05 UTCMay 18, 01:25 UTC4h 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 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?
Yes. Mode-S AC7E1C is currently airborne.
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 TAI562, LRC641, LRC640, TAI568, TAI563.