Apparatus

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sensors Mode-S transponder

AD1C18

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N944AV · AIRBUS A-320 · operated by BANK OF UTAH TRUSTEE

Hex
AD1C18
Octal
53216030
Decimal
11,344,920
Country
US
Tail
N944AV
Type
A320
No current signal · last broadcast 15m ago
Flights observed
285
Distinct callsigns
20
Country
US
Last broadcast
15m ago

Last known position

Most recent position reported by Mode-S AD1C18.

Country allocation

The ICAO 24-bit address AD1C18 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
TAI425 - 8 2026-07-11
TAI440 Avianca El Salvador 7 2026-06-09
TAI441 Avianca El Salvador 6 2026-06-09
TAI424 - 6 2026-07-11
LRC661 - 5 2026-07-10
LRC660 - 5 2026-07-10
TAI393 - 4 2026-07-02
TAI311 - 4 2026-07-09
LRC671 - 4 2026-07-12
LRC670 - 4 2026-07-12
AVA103 Avianca - Aerovias Nacionales de Colombia, S.A. 4 2026-06-01
TAI521 - 3 2026-06-12
TAI451 - 3 2026-07-02
TAI397 - 3 2026-07-01
TAI392 Avianca El Salvador 3 2026-05-28
TAI385 Avianca El Salvador 3 2026-06-02
TAI368 - 3 2026-06-27
TAI367 - 3 2026-06-27
TAI310 Avianca El Salvador 3 2026-07-01
AVA258 Avianca - Aerovias Nacionales de Colombia, S.A. 3 2026-05-06

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AVR5200 - Jul 14, 17:55 UTCJul 14, 18:00 UTC5m
2026-07-14 AVA8451 - Jul 14, 16:10 UTCJul 14, 16:25 UTC15m
2026-07-14 AVA8537 - Jul 14, 11:50 UTCJul 14, 12:00 UTC10m
2026-07-14 AVA9552 - Jul 14, 01:50 UTCJul 14, 02:00 UTC10m
2026-07-14 AVA9525 - Jul 14, 00:20 UTCJul 14, 00:35 UTC15m
2026-07-13 AVA102 - Jul 13, 19:40 UTCJul 13, 19:55 UTC15m
2026-07-13 TAI429 - Jul 13, 04:40 UTCJul 13, 07:50 UTC3h 10m
2026-07-12 TAI423 - Jul 12, 20:20 UTCJul 12, 22:50 UTC2h 30m
2026-07-12 TAI422 - Jul 12, 15:35 UTCJul 12, 17:50 UTC2h 15m
2026-07-12 LRC671 - Jul 12, 09:25 UTCJul 12, 13:25 UTC4h 0m
2026-07-12 LRC670 - Jul 12, 03:15 UTCJul 12, 07:10 UTC3h 55m
2026-07-11 TAI425 - Jul 11, 22:55 UTCJul 12, 01:15 UTC2h 20m
2026-07-11 TAI424 - Jul 11, 18:35 UTCJul 11, 21:10 UTC2h 35m
2026-07-11 TAI318 - Jul 11, 16:05 UTCJul 11, 16:25 UTC20m
2026-07-11 TAI317 - Jul 11, 06:15 UTCJul 11, 15:00 UTC8h 45m
2026-07-11 TAI425 - Jul 11, 01:00 UTCJul 11, 01:20 UTC20m
2026-07-10 TAI425 - Jul 10, 23:05 UTCJul 11, 00:55 UTC1h 50m
2026-07-10 TAI424 - Jul 10, 18:30 UTCJul 10, 21:00 UTC2h 30m
2026-07-10 LRC661 - Jul 10, 07:10 UTCJul 10, 11:15 UTC4h 5m
2026-07-10 LRC660 - Jul 10, 00:55 UTCJul 10, 05:00 UTC4h 5m
2026-07-09 TAI311 - Jul 9, 20:05 UTCJul 9, 22:05 UTC2h 0m
2026-07-09 TAI396 - Jul 9, 15:50 UTCJul 9, 17:40 UTC1h 50m
2026-07-08 TAI583 - Jul 8, 21:50 UTCJul 9, 01:30 UTC3h 40m
2026-07-08 TAI582 - Jul 8, 16:05 UTCJul 8, 19:40 UTC3h 35m
2026-07-08 TAI317 - Jul 8, 05:40 UTCJul 8, 11:25 UTC5h 45m
2026-07-07 TAI445 - Jul 7, 21:00 UTCJul 8, 01:30 UTC4h 30m
2026-07-07 TAI444 - Jul 7, 14:15 UTCJul 7, 18:40 UTC4h 25m
2026-07-07 LRC671 JFK → SAL Jul 7, 07:40 UTCJul 7, 11:45 UTC4h 5m
2026-07-07 LRC670 - Jul 7, 01:35 UTCJul 7, 05:40 UTC4h 5m
2026-07-05 TAI557 - Jul 5, 20:15 UTCJul 5, 20:30 UTC15m
2026-07-05 TAI557 - Jul 5, 14:35 UTCJul 5, 18:50 UTC4h 15m
2026-07-05 TAI556 - Jul 5, 07:50 UTCJul 5, 12:25 UTC4h 35m
2026-07-05 TAI556 - Jul 5, 06:10 UTCJul 5, 06:30 UTC20m
2026-07-05 TAI573 - Jul 5, 03:50 UTCJul 5, 04:05 UTC15m
2026-07-05 TAI588 - Jul 5, 02:20 UTCJul 5, 02:45 UTC25m
2026-07-04 TAI431 - Jul 4, 23:00 UTCJul 5, 00:30 UTC1h 30m
2026-07-04 LRC632 SJO → MEX Jul 4, 19:25 UTCJul 4, 21:15 UTC1h 50m
2026-07-04 TAI569 - Jul 4, 11:05 UTCJul 4, 15:05 UTC4h 0m
2026-07-04 TAI568 - Jul 4, 05:00 UTCJul 4, 08:55 UTC3h 55m
2026-07-03 TAI311 - Jul 3, 20:05 UTCJul 3, 22:00 UTC1h 55m
2026-07-02 TAI393 - Jul 2, 22:55 UTCJul 3, 17:25 UTC18h 30m
2026-07-02 TAI451 - Jul 2, 10:45 UTCJul 2, 20:15 UTC9h 30m
2026-07-01 TAI397 - Jul 1, 18:05 UTCJul 2, 03:35 UTC9h 30m
2026-07-01 TAI310 SAL → MIA Jul 1, 14:15 UTCJul 1, 16:05 UTC1h 50m
2026-06-29 LRC605 - Jun 29, 18:19 UTCJun 29, 20:24 UTC2h 5m
2026-06-29 LRC604 - Jun 29, 14:04 UTCJun 29, 16:15 UTC2h 10m
2026-06-28 TAI325 - Jun 28, 21:30 UTCJun 29, 01:50 UTC4h 20m
2026-06-28 TAI324 - Jun 28, 14:39 UTCJun 28, 18:59 UTC4h 20m
2026-06-28 LRC661 - Jun 28, 07:50 UTCJun 28, 11:50 UTC4h 0m
2026-06-28 LRC660 - Jun 28, 00:59 UTCJun 28, 05:04 UTC4h 5m

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 N944AV page for operator, model, and routing details .

Mode-S AD1C18 frequently asked

What is Mode-S code AD1C18?
AD1C18 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N944AV.
Where is Mode-S AD1C18 registered?
Mode-S code AD1C18 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 AD1C18 broadcasting right now?
No active broadcast right now. Last signal was 15m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AD1C18, octal 53216030, decimal 11,344,920.
What flights does AD1C18 operate?
Mode-S AD1C18 has broadcast 20 distinct callsigns, including TAI425, TAI440, TAI441, TAI424, LRC661.