Apparatus

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sensors Mode-S transponder

A2B320

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N273RH · BOEING 737-600 · operated by DEPARTMENT OF THE AIR FORCE (USAF)

Hex
A2B320
Octal
50531440
Decimal
10,662,688
Country
US
Tail
N273RH
Type
B736
No current signal · last broadcast 2d ago
Flights observed
318
Distinct callsigns
20
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A2B320.

Country allocation

The ICAO 24-bit address A2B320 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
JANET31 - 18 2026-06-26
JANET74 - 16 2026-06-02
JANET68 - 13 2026-06-13
JANET24 - 12 2026-06-12
JANET16 - 12 2026-06-25
JANET55 - 11 2026-06-12
JANET43 - 11 2026-06-25
JANET36 - 11 2026-06-25
JANET25 - 11 2026-06-25
JANET86 - 10 2026-06-25
JANET82 - 10 2026-06-24
JANET42 - 10 2026-06-25
JANET27 - 10 2026-06-25
JANET26 - 10 2026-06-25
JANET53 - 9 2026-06-22
JANET46 - 9 2026-06-25
JANET44 - 9 2026-06-25
JANET15 - 9 2026-06-24
JANET13 - 9 2026-06-22
JANET65 - 8 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-26 JANET48 - Jun 26, 22:34 UTCJun 26, 22:55 UTC20m
2026-06-26 JANET47 - Jun 26, 20:10 UTCJun 26, 20:20 UTC10m
2026-06-26 JANET76 - Jun 26, 14:15 UTCJun 26, 14:35 UTC20m
2026-06-26 JANET31 - Jun 26, 12:55 UTCJun 26, 13:10 UTC15m
2026-06-25 JANET16 - Jun 25, 22:45 UTCJun 25, 23:05 UTC20m
2026-06-25 JANET27 - Jun 25, 21:40 UTCJun 25, 21:50 UTC10m
2026-06-25 JANET86 - Jun 25, 20:34 UTCJun 25, 20:54 UTC20m
2026-06-25 JANET46 - Jun 25, 18:45 UTCJun 25, 18:55 UTC10m
2026-06-25 JANET42 - Jun 25, 17:09 UTCJun 25, 17:25 UTC15m
2026-06-25 JANET43 - Jun 25, 13:09 UTCJun 25, 13:20 UTC10m
2026-06-25 JANET44 INS → LAS Jun 25, 12:04 UTCJun 25, 12:19 UTC15m
2026-06-25 JANET33 - Jun 25, 11:10 UTCJun 25, 11:25 UTC15m
2026-06-25 JANET36 - Jun 25, 03:20 UTCJun 25, 03:40 UTC20m
2026-06-25 JANET25 - Jun 25, 02:19 UTCJun 25, 02:35 UTC15m
2026-06-25 JANET26 - Jun 25, 00:55 UTCJun 25, 01:40 UTC45m
2026-06-24 JANET15 - Jun 24, 23:50 UTCJun 25, 00:09 UTC20m
2026-06-24 JANET82 - Jun 24, 20:54 UTCJun 24, 21:14 UTC20m
2026-06-24 JANET31 - Jun 24, 13:40 UTCJun 24, 13:50 UTC10m
2026-06-24 JANET26 - Jun 24, 00:30 UTCJun 24, 00:49 UTC20m
2026-06-23 JANET15 - Jun 23, 23:10 UTCJun 23, 23:19 UTC10m
2026-06-23 JANET16 - Jun 23, 22:19 UTCJun 23, 22:40 UTC20m
2026-06-23 JANET86 - Jun 23, 20:19 UTCJun 23, 20:40 UTC20m
2026-06-23 JANET87 - Jun 23, 14:10 UTCJun 23, 14:19 UTC10m
2026-06-23 JANET88 - Jun 23, 13:19 UTCJun 23, 13:34 UTC15m
2026-06-23 JANET77 - Jun 23, 12:09 UTCJun 23, 12:20 UTC10m
2026-06-22 JANET13 - Jun 22, 18:15 UTCJun 22, 18:35 UTC20m
2026-06-22 JANET53 - Jun 22, 15:10 UTCJun 22, 15:24 UTC15m
2026-06-22 JANET44 - Jun 22, 12:05 UTCJun 22, 12:19 UTC15m
2026-06-22 JANET33 - Jun 22, 11:09 UTCJun 22, 11:24 UTC15m
2026-06-18 JANET84 - Jun 18, 00:20 UTCJun 18, 00:40 UTC20m
2026-06-17 JANET59 - Jun 17, 22:40 UTCJun 17, 22:50 UTC10m
2026-06-17 JANET16 - Jun 17, 21:50 UTCJun 17, 22:05 UTC15m
2026-06-17 JANET27 - Jun 17, 20:35 UTCJun 17, 20:45 UTC10m
2026-06-17 JANET86 - Jun 17, 19:50 UTCJun 17, 20:05 UTC15m
2026-06-17 JANET46 - Jun 17, 18:15 UTCJun 17, 18:25 UTC10m
2026-06-17 JANET42 - Jun 17, 17:10 UTCJun 17, 17:25 UTC15m
2026-06-17 JANET43 - Jun 17, 13:10 UTCJun 17, 13:20 UTC10m
2026-06-17 JANET44 - Jun 17, 12:10 UTCJun 17, 12:20 UTC10m
2026-06-17 JANET33 - Jun 17, 11:15 UTCJun 17, 11:30 UTC15m
2026-06-17 JANET26 - Jun 17, 00:45 UTCJun 17, 01:00 UTC15m
2026-06-16 JANET15 - Jun 16, 23:35 UTCJun 16, 23:50 UTC15m
2026-06-16 JANET48 - Jun 16, 22:50 UTCJun 16, 23:05 UTC15m
2026-06-16 JANET39 - Jun 16, 21:10 UTCJun 16, 21:20 UTC10m
2026-06-16 JANET82 - Jun 16, 20:10 UTCJun 16, 20:30 UTC20m
2026-06-16 JANET17 - Jun 16, 15:24 UTCJun 16, 15:40 UTC15m
2026-06-16 JANET76 - Jun 16, 14:05 UTCJun 16, 14:25 UTC20m
2026-06-16 JANET65 - Jun 16, 12:30 UTCJun 16, 12:45 UTC15m
2026-06-16 JANET22 - Jun 16, 11:35 UTCJun 16, 11:55 UTC20m
2026-06-16 JANET11 - Jun 16, 10:20 UTCJun 16, 10:30 UTC10m
2026-06-16 JANET36 - Jun 16, 03:20 UTCJun 16, 03:35 UTC15m

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 N273RH page for operator, model, and routing details .

Mode-S A2B320 frequently asked

What is Mode-S code A2B320?
A2B320 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N273RH.
Where is Mode-S A2B320 registered?
Mode-S code A2B320 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 A2B320 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2B320, octal 50531440, decimal 10,662,688.
What flights does A2B320 operate?
Mode-S A2B320 has broadcast 20 distinct callsigns, including JANET31, JANET74, JANET68, JANET24, JANET16.