Apparatus

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sensors Mode-S transponder

AB5748

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N83PB · CESSNA 402 Businessliner · operated by HYANNIS AIR SERVICE INC DBA, CAPE AIR

Hex
AB5748
Octal
52653510
Decimal
11,229,000
Country
US
Tail
N83PB
Type
C402
No current signal · last broadcast 9h ago
Flights observed
187
Distinct callsigns
20
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S AB5748.

Country allocation

The ICAO 24-bit address AB5748 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
KAP98 Cape Air 16 2026-05-07
KAP87 Cape Air 12 2026-04-25
KAP5150 Cape Air 12 2026-06-11
KAP47 Cape Air 12 2026-06-09
KAP11 Cape Air 11 2026-06-07
KAP63 - 10 2026-06-18
KAP627 Cape Air 10 2026-04-30
KAP202 - 9 2026-07-03
KAP131 - 9 2026-07-12
KAP189 - 8 2026-06-16
KAP161 Cape Air 8 2026-05-24
KAP30 - 7 2026-06-23
KAP230 - 7 2026-06-21
KAP278 Cape Air 6 2026-05-23
KAP211 - 6 2026-07-12
KAP726 Cape Air 5 2026-06-11
KAP252 Cape Air 5 2026-06-14
KAP876 Cape Air 4 2026-05-05
KAP65 - 4 2026-06-25
KAP157 Cape Air 4 2026-06-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 KAP64 - Jul 13, 23:05 UTCJul 13, 23:20 UTC15m
2026-07-13 KAP64 - Jul 13, 22:15 UTCJul 13, 22:25 UTC10m
2026-07-13 KAP64 - Jul 13, 15:00 UTCJul 13, 15:20 UTC20m
2026-07-12 KAP131 - Jul 12, 22:55 UTCJul 12, 23:15 UTC20m
2026-07-12 KAP211 - Jul 12, 21:15 UTCJul 12, 21:25 UTC10m
2026-07-12 KAP211 - Jul 12, 20:20 UTCJul 12, 20:30 UTC10m
2026-07-12 KAP211 - Jul 12, 19:40 UTCJul 12, 19:50 UTC10m
2026-07-12 KAP211 - Jul 12, 18:50 UTCJul 12, 19:05 UTC15m
2026-07-10 KAP131 - Jul 10, 17:35 UTCJul 10, 18:00 UTC25m
2026-07-05 KAP70 - Jul 5, 18:10 UTCJul 5, 18:25 UTC15m
2026-07-05 KAP70 - Jul 5, 15:55 UTCJul 5, 16:10 UTC15m
2026-07-04 KAP323 - Jul 4, 16:50 UTCJul 4, 17:50 UTC1h 0m
2026-07-03 KAP37 - Jul 3, 19:50 UTCJul 3, 20:05 UTC15m
2026-07-03 KAP202 - Jul 3, 13:15 UTCJul 3, 13:25 UTC10m
2026-06-25 KAP65 - Jun 25, 17:44 UTCJun 25, 17:54 UTC10m
2026-06-25 KAP65 - Jun 25, 14:50 UTCJun 25, 14:59 UTC10m
2026-06-25 KAP65 - Jun 25, 13:50 UTCJun 25, 14:04 UTC15m
2026-06-25 KAP65 - Jun 25, 11:30 UTCJun 25, 11:50 UTC20m
2026-06-24 KAP157 SJU → VQS Jun 24, 21:09 UTCJun 24, 21:34 UTC25m
2026-06-24 KAP110 - Jun 24, 19:55 UTCJun 24, 20:05 UTC10m
2026-06-23 KAP30 - Jun 23, 18:50 UTCJun 23, 19:10 UTC20m
2026-06-23 KAP30 - Jun 23, 17:25 UTCJun 23, 17:39 UTC15m
2026-06-23 KAP30 - Jun 23, 13:55 UTCJun 23, 14:15 UTC20m
2026-06-23 KAP30 - Jun 23, 12:49 UTCJun 23, 13:09 UTC20m
2026-06-22 KAP30 - Jun 22, 18:54 UTCJun 22, 19:09 UTC15m
2026-06-22 KAP30 - Jun 22, 18:00 UTCJun 22, 18:15 UTC15m
2026-06-21 KAP230 - Jun 21, 23:24 UTCJun 21, 23:34 UTC10m
2026-06-21 KAP230 - Jun 21, 21:54 UTCJun 21, 22:10 UTC15m
2026-06-21 KAP230 - Jun 21, 20:29 UTCJun 21, 20:50 UTC20m
2026-06-21 KAP202 - Jun 21, 19:29 UTCJun 21, 19:45 UTC15m
2026-06-20 KAP1 - Jun 20, 14:50 UTCJun 20, 15:04 UTC15m
2026-06-20 KAP1 - Jun 20, 14:09 UTCJun 20, 14:19 UTC10m
2026-06-20 KAP222 SJU → VQS Jun 20, 13:04 UTCJun 20, 13:24 UTC20m
2026-06-19 KAP202 - Jun 19, 19:19 UTCJun 19, 19:34 UTC15m
2026-06-19 KAP202 - Jun 19, 16:44 UTCJun 19, 17:04 UTC20m
2026-06-19 KAP202 - Jun 19, 15:19 UTCJun 19, 15:39 UTC20m
2026-06-19 KAP202 - Jun 19, 13:14 UTCJun 19, 13:34 UTC20m
2026-06-18 KAP63 - Jun 18, 21:40 UTCJun 18, 22:00 UTC20m
2026-06-18 KAP63 - Jun 18, 20:20 UTCJun 18, 20:30 UTC10m
2026-06-18 KAP63 - Jun 18, 17:21 UTCJun 18, 18:00 UTC39m
2026-06-18 KAP63 - Jun 18, 15:30 UTCJun 18, 15:40 UTC10m
2026-06-18 KAP63 - Jun 18, 13:40 UTCJun 18, 13:50 UTC10m
2026-06-17 KAP222 SJU → VQS Jun 17, 21:10 UTCJun 17, 21:30 UTC20m
2026-06-17 KAP222 SJU → VQS Jun 17, 18:30 UTCJun 17, 18:45 UTC15m
2026-06-17 KAP63 - Jun 17, 12:50 UTCJun 17, 13:00 UTC10m
2026-06-17 KAP63 - Jun 17, 11:25 UTCJun 17, 11:45 UTC20m
2026-06-16 KAP189 - Jun 16, 21:05 UTCJun 16, 21:20 UTC15m
2026-06-16 KAP189 - Jun 16, 18:15 UTCJun 16, 18:25 UTC10m
2026-06-16 KAP202 - Jun 16, 17:15 UTCJun 16, 17:24 UTC10m
2026-06-16 KAP202 - Jun 16, 12:05 UTCJun 16, 12:30 UTC25m

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 N83PB page for operator, model, and routing details .

Mode-S AB5748 frequently asked

What is Mode-S code AB5748?
AB5748 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N83PB.
Where is Mode-S AB5748 registered?
Mode-S code AB5748 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 AB5748 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB5748, octal 52653510, decimal 11,229,000.
What flights does AB5748 operate?
Mode-S AB5748 has broadcast 20 distinct callsigns, including KAP98, KAP87, KAP5150, KAP47, KAP11.