Apparatus

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sensors Mode-S transponder

A2C1BD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N277NV · AIRBUS A-320 · operated by SUNRISE ASSET MANAGEMENT LLC

Hex
A2C1BD
Octal
50540675
Decimal
10,666,429
Country
US
Tail
N277NV
Type
A320
No current signal · last broadcast 23h ago
Flights observed
323
Distinct callsigns
20
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A2C1BD.

Country allocation

The ICAO 24-bit address A2C1BD 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
AAY1604 - 10 2026-07-09
AAY1603 - 8 2026-07-08
AAY1601 - 8 2026-07-07
AAY1589 - 7 2026-06-30
AAY1602 - 6 2026-07-07
AAY1592 - 6 2026-07-09
AAY1588 - 6 2026-07-10
AAY3891 - 5 2026-04-16
AAY3212 - 5 2026-07-10
AAY1590 - 5 2026-07-03
AAY711 Allegiant Air 4 2026-06-04
AAY636 - 4 2026-07-12
AAY3231 - 4 2026-07-11
AAY3223 - 4 2026-07-01
AAY3221 - 4 2026-07-09
AAY3214 Allegiant Air 4 2026-04-20
AAY3213 - 4 2026-07-03
AAY3210 - 4 2026-07-08
AAY2305 - 4 2026-07-13
AAY1595 - 4 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AAY638 LAS → AZA Jul 14, 04:05 UTCJul 14, 05:05 UTC1h 0m
2026-07-13 AAY638 AZA → LAS Jul 13, 20:15 UTCJul 14, 02:35 UTC6h 20m
2026-07-13 AAY2305 - Jul 13, 17:45 UTCJul 13, 19:15 UTC1h 30m
2026-07-13 AAY2268 - Jul 13, 15:00 UTCJul 13, 16:20 UTC1h 20m
2026-07-13 AAY658 - Jul 13, 04:50 UTCJul 13, 06:55 UTC2h 5m
2026-07-13 AAY639 - Jul 13, 01:40 UTCJul 13, 03:40 UTC2h 0m
2026-07-12 AAY688 AZA → AZA Jul 12, 18:40 UTCJul 13, 00:20 UTC5h 40m
2026-07-12 AAY673 - Jul 12, 15:50 UTCJul 12, 17:20 UTC1h 30m
2026-07-12 AAY636 - Jul 12, 13:05 UTCJul 12, 14:25 UTC1h 20m
2026-07-11 AAY3231 PVU → AZA Jul 11, 02:05 UTCJul 11, 03:20 UTC1h 15m
2026-07-10 AAY3242 - Jul 10, 23:30 UTCJul 11, 00:50 UTC1h 20m
2026-07-10 AAY1599 - Jul 10, 20:15 UTCJul 10, 22:20 UTC2h 5m
2026-07-10 AAY1588 - Jul 10, 16:40 UTCJul 10, 18:30 UTC1h 50m
2026-07-10 AAY3240 - Jul 10, 14:10 UTCJul 10, 15:30 UTC1h 20m
2026-07-10 AAY1595 AZA → PVU Jul 10, 03:20 UTCJul 10, 04:30 UTC1h 10m
2026-07-10 AAY3212 - Jul 10, 00:00 UTCJul 10, 02:05 UTC2h 5m
2026-07-09 AAY1604 - Jul 9, 21:05 UTCJul 9, 22:55 UTC1h 50m
2026-07-09 AAY3231 PVU → AZA Jul 9, 18:35 UTCJul 9, 19:45 UTC1h 10m
2026-07-09 AAY1592 BUR → PVU Jul 9, 15:45 UTCJul 9, 17:05 UTC1h 20m
2026-07-09 AAY3221 PVU → BUR Jul 9, 13:10 UTCJul 9, 14:45 UTC1h 35m
2026-07-09 AAY3222 - Jul 9, 01:15 UTCJul 9, 02:30 UTC1h 15m
2026-07-08 AAY1588 - Jul 8, 22:25 UTCJul 9, 00:20 UTC1h 55m
2026-07-08 AAY3245 - Jul 8, 19:05 UTCJul 8, 20:40 UTC1h 35m
2026-07-08 AAY3210 PVU → AZA Jul 8, 16:45 UTCJul 8, 17:55 UTC1h 10m
2026-07-08 AAY1603 AZA → PVU Jul 8, 02:45 UTCJul 8, 03:55 UTC1h 10m
2026-07-08 AAY3246 PVU → AZA Jul 8, 00:05 UTCJul 8, 01:30 UTC1h 25m
2026-07-07 AAY1602 - Jul 7, 19:45 UTCJul 7, 22:35 UTC2h 50m
2026-07-07 AAY1601 - Jul 7, 15:35 UTCJul 7, 18:10 UTC2h 35m
2026-07-07 AAY3233 AZA → PVU Jul 7, 04:45 UTCJul 7, 05:55 UTC1h 10m
2026-07-07 AAY3210 PVU → AZA Jul 7, 02:20 UTCJul 7, 03:40 UTC1h 20m
2026-07-06 AAY3241 - Jul 6, 23:45 UTCJul 7, 01:05 UTC1h 20m
2026-07-06 AAY3232 - Jul 6, 20:40 UTCJul 6, 22:45 UTC2h 5m
2026-07-06 AAY1588 - Jul 6, 16:50 UTCJul 6, 18:45 UTC1h 55m
2026-07-06 AAY3240 PVU → SNA Jul 6, 14:20 UTCJul 6, 15:45 UTC1h 25m
2026-07-06 AAY3219 - Jul 6, 01:30 UTCJul 6, 04:15 UTC2h 45m
2026-07-05 AAY1599 PVU → MDW Jul 5, 21:45 UTCJul 6, 00:30 UTC2h 45m
2026-07-05 AAY1603 - Jul 5, 17:35 UTCJul 5, 20:25 UTC2h 50m
2026-07-05 AAY1601 - Jul 5, 13:50 UTCJul 5, 16:25 UTC2h 35m
2026-07-04 AAY1602 AZA → PVU Jul 4, 23:10 UTCJul 5, 00:25 UTC1h 15m
2026-07-04 AAY3243 AZA → AZA Jul 4, 16:35 UTCJul 4, 22:00 UTC5h 25m
2026-07-04 AAY3246 SNA → PVU Jul 4, 14:20 UTCJul 4, 15:30 UTC1h 10m
2026-07-04 AAY1603 AUS → PVU Jul 4, 02:10 UTCJul 4, 04:35 UTC2h 25m
2026-07-03 AAY1590 PVU → AUS Jul 3, 22:35 UTCJul 4, 00:45 UTC2h 10m
2026-07-03 AAY3213 - Jul 3, 18:10 UTCJul 3, 21:20 UTC3h 10m
2026-07-03 AAY1593 AZA → BIL Jul 3, 14:00 UTCJul 3, 17:05 UTC3h 5m
2026-07-03 AAY1595 AZA → PVU Jul 3, 03:30 UTCJul 3, 04:40 UTC1h 10m
2026-07-03 AAY3212 - Jul 3, 00:10 UTCJul 3, 02:25 UTC2h 15m
2026-07-02 AAY1604 HOU → PVU Jul 2, 20:55 UTCJul 2, 22:55 UTC2h 0m
2026-07-02 AAY3231 SNA → MSO Jul 2, 18:20 UTCJul 2, 19:40 UTC1h 20m
2026-07-02 AAY1592 BUR → PVU Jul 2, 15:35 UTCJul 2, 16:50 UTC1h 15m

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 N277NV page for operator, model, and routing details .

Mode-S A2C1BD frequently asked

What is Mode-S code A2C1BD?
A2C1BD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N277NV.
Where is Mode-S A2C1BD registered?
Mode-S code A2C1BD 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 A2C1BD broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2C1BD, octal 50540675, decimal 10,666,429.
What flights does A2C1BD operate?
Mode-S A2C1BD has broadcast 20 distinct callsigns, including AAY1604, AAY1603, AAY1601, AAY1589, AAY1602.