Apparatus

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sensors Mode-S transponder

A34B30

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N311GT · BOEING 737-400 · operated by UMB BANK NA TRUSTEE

Hex
A34B30
Octal
50645460
Decimal
10,701,616
Country
US
Tail
N311GT
Type
B734
No current signal · last broadcast 21d ago
Flights observed
143
Distinct callsigns
18
Country
US
Last broadcast
21d ago

Last known position

Most recent position reported by Mode-S A34B30.

Country allocation

The ICAO 24-bit address A34B30 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 18 distinct

Callsign Airline Flights Last seen
KII124 - 39 2026-06-24
KII524 - 37 2026-06-23
KII517 - 12 2026-06-24
KII437 - 12 2026-06-11
KII117 - 12 2026-06-25
KII837 - 6 2026-06-10
KII833 - 6 2026-06-16
KII433 - 6 2026-06-17
KII835 - 2 2026-06-05
KII435 - 2 2026-06-06
KII1524 - 2 2026-04-29
KII587 - 1 2026-05-20
KII311 - 1 2026-06-26
KII2195 - 1 2026-06-25
KII187 - 1 2026-05-21
KII1837 - 1 2026-06-25
KII1517 - 1 2026-05-24
KII1117 - 1 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-26 KII311 - Jun 26, 13:19 UTCJun 26, 14:35 UTC1h 15m
2026-06-25 KII2195 - Jun 25, 14:50 UTCJun 25, 16:20 UTC1h 30m
2026-06-25 KII1837 - Jun 25, 11:59 UTCJun 25, 13:35 UTC1h 35m
2026-06-25 KII117 AUS → CVG Jun 25, 03:15 UTCJun 25, 05:15 UTC2h 0m
2026-06-24 KII517 - Jun 24, 10:14 UTCJun 24, 12:25 UTC2h 10m
2026-06-24 KII124 - Jun 24, 04:24 UTCJun 24, 05:20 UTC55m
2026-06-24 KII124 - Jun 24, 02:00 UTCJun 24, 02:54 UTC55m
2026-06-23 KII524 - Jun 23, 14:04 UTCJun 23, 14:59 UTC55m
2026-06-23 KII524 - Jun 23, 12:20 UTCJun 23, 13:09 UTC50m
2026-06-23 KII117 - Jun 23, 03:29 UTCJun 23, 05:39 UTC2h 10m
2026-06-22 KII517 - Jun 22, 06:54 UTCJun 22, 09:10 UTC2h 15m
2026-06-18 KII117 - Jun 18, 03:00 UTCJun 18, 05:35 UTC2h 35m
2026-06-17 KII517 - Jun 17, 09:55 UTCJun 17, 12:10 UTC2h 15m
2026-06-17 KII433 - Jun 17, 03:50 UTCJun 17, 04:55 UTC1h 5m
2026-06-17 KII433 - Jun 17, 02:20 UTCJun 17, 03:00 UTC40m
2026-06-16 KII833 - Jun 16, 14:20 UTCJun 16, 14:55 UTC35m
2026-06-16 KII833 CVG → CID Jun 16, 12:05 UTCJun 16, 13:15 UTC1h 10m
2026-06-16 KII117 AUS → CVG Jun 16, 03:30 UTCJun 16, 05:30 UTC2h 0m
2026-06-15 KII517 - Jun 15, 06:40 UTCJun 15, 09:05 UTC2h 25m
2026-06-13 KII433 - Jun 13, 03:50 UTCJun 13, 04:55 UTC1h 4m
2026-06-13 KII433 - Jun 13, 02:25 UTCJun 13, 03:05 UTC40m
2026-06-12 KII833 - Jun 12, 14:30 UTCJun 12, 15:05 UTC35m
2026-06-12 KII833 - Jun 12, 12:40 UTCJun 12, 13:45 UTC1h 5m
2026-06-12 KII433 - Jun 12, 03:40 UTCJun 12, 04:45 UTC1h 5m
2026-06-12 KII433 - Jun 12, 02:15 UTCJun 12, 02:55 UTC40m
2026-06-11 KII833 - Jun 11, 14:05 UTCJun 11, 15:00 UTC55m
2026-06-11 KII833 - Jun 11, 12:10 UTCJun 11, 13:15 UTC1h 5m
2026-06-11 KII437 STL → CVG Jun 11, 03:45 UTCJun 11, 04:35 UTC50m
2026-06-11 KII437 - Jun 11, 02:00 UTCJun 11, 02:50 UTC50m
2026-06-10 KII837 - Jun 10, 12:45 UTCJun 10, 14:15 UTC1h 30m
2026-06-10 KII437 - Jun 10, 04:25 UTCJun 10, 05:30 UTC1h 5m
2026-06-10 KII437 - Jun 10, 02:40 UTCJun 10, 03:30 UTC50m
2026-06-09 KII837 - Jun 9, 12:40 UTCJun 9, 14:10 UTC1h 30m
2026-06-09 KII437 STL → CVG Jun 9, 04:25 UTCJun 9, 05:20 UTC55m
2026-06-09 KII437 - Jun 9, 02:15 UTCJun 9, 03:05 UTC50m
2026-06-08 KII837 CVG → TUL Jun 8, 06:45 UTCJun 8, 08:20 UTC1h 35m
2026-06-06 KII435 - Jun 6, 04:45 UTCJun 6, 05:45 UTC1h 0m
2026-06-06 KII435 - Jun 6, 02:05 UTCJun 6, 03:00 UTC55m
2026-06-05 KII835 - Jun 5, 13:50 UTCJun 5, 14:35 UTC45m
2026-06-05 KII835 - Jun 5, 11:50 UTCJun 5, 12:50 UTC1h 0m
2026-06-05 KII437 STL → CVG Jun 5, 03:50 UTCJun 5, 04:35 UTC45m
2026-06-05 KII437 - Jun 5, 02:05 UTCJun 5, 02:55 UTC50m
2026-06-04 KII837 - Jun 4, 12:05 UTCJun 4, 13:35 UTC1h 30m
2026-06-04 KII437 STL → CVG Jun 4, 04:10 UTCJun 4, 05:00 UTC50m
2026-06-04 KII437 - Jun 4, 01:55 UTCJun 4, 02:45 UTC50m
2026-06-03 KII837 - Jun 3, 12:15 UTCJun 3, 13:45 UTC1h 30m
2026-06-03 KII437 STL → CVG Jun 3, 03:15 UTCJun 3, 04:05 UTC50m
2026-06-03 KII437 - Jun 3, 01:50 UTCJun 3, 02:40 UTC50m
2026-06-02 KII837 - Jun 2, 13:20 UTCJun 2, 14:55 UTC1h 35m
2026-05-28 KII117 - May 28, 03:40 UTCMay 28, 05:40 UTC2h 0m

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 N311GT page for operator, model, and routing details .

Mode-S A34B30 frequently asked

What is Mode-S code A34B30?
A34B30 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N311GT.
Where is Mode-S A34B30 registered?
Mode-S code A34B30 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 A34B30 broadcasting right now?
No active broadcast right now. Last signal was 21d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A34B30, octal 50645460, decimal 10,701,616.
What flights does A34B30 operate?
Mode-S A34B30 has broadcast 18 distinct callsigns, including KII124, KII524, KII517, KII437, KII117.