Apparatus

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sensors Mode-S transponder

AB0D2E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N811BB · SAAB 2000 · operated by MEREGRASS INC

Hex
AB0D2E
Octal
52606456
Decimal
11,210,030
Country
US
Tail
N811BB
Type
SB20
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
223
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S AB0D2E.

Country allocation

The ICAO 24-bit address AB0D2E 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
SRY1402 Sterling Airways 22 2026-07-25
SRY1401 Sterling Airways 21 2026-07-25
QHD811 Meregrass 21 2026-06-28
SRY1403 Sterling Airways 14 2026-07-25
SRY1404 Sterling Airways 13 2026-07-25
SRY1801 Sterling Airways 11 2026-07-21
SRY1406 Sterling Airways 11 2026-07-25
SRY1405 Sterling Airways 11 2026-07-25
SRY1802 Sterling Airways 9 2026-07-22
SRY1602 Sterling Airways 9 2026-07-26
SRY1601 Sterling Airways 9 2026-07-26
SRY1210 Sterling Airways 8 2026-07-25
SRY1105 - 8 2026-07-24
SRY1103 Sterling Airways 7 2026-07-26
SRY1512 Sterling Airways 6 2026-07-26
SRY1511 Sterling Airways 6 2026-07-26
SRY1101 Sterling Airways 5 2026-07-23
0HD811 - 5 2026-05-13
SRY3101 Sterling Airways 4 2026-07-25
SRY3102 Sterling Airways 3 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SRY1602 UNK → ANC Jul 26, 20:35 UTCJul 26, 21:30 UTC55m
2026-07-26 SRY1601 ANC → UNK Jul 26, 18:35 UTCJul 26, 19:35 UTC1h 0m
2026-07-26 SRY1512 AKN → ANC Jul 26, 15:40 UTCJul 26, 16:35 UTC55m
2026-07-26 SRY1511 ANC → AKN Jul 26, 14:15 UTCJul 26, 15:00 UTC45m
2026-07-26 SRY1103 ANC → DUT Jul 26, 00:30 UTCJul 26, 05:35 UTC5h 5m
2026-07-25 SRY3102 DLG → ANC Jul 25, 22:55 UTCJul 25, 23:50 UTC55m
2026-07-25 SRY3101 ANC → DLG Jul 25, 21:10 UTCJul 25, 22:15 UTC1h 5m
2026-07-25 SRY1402 HOM → ANC Jul 25, 20:05 UTCJul 25, 20:30 UTC25m
2026-07-25 SRY1401 ANC → HOM Jul 25, 19:10 UTCJul 25, 19:35 UTC25m
2026-07-25 SRY1522 AKN → ANC Jul 25, 17:50 UTCJul 25, 18:40 UTC50m
2026-07-25 SRY1521 ANC → AKN Jul 25, 16:15 UTCJul 25, 17:10 UTC55m
2026-07-25 SRY1404 HOM → ANC Jul 25, 05:40 UTCJul 25, 06:10 UTC30m
2026-07-25 SRY1403 ANC → HOM Jul 25, 05:00 UTCJul 25, 05:25 UTC25m
2026-07-25 SRY1406 HOM → ANC Jul 25, 03:55 UTCJul 25, 04:20 UTC25m
2026-07-25 SRY1405 ANC → HOM Jul 25, 02:35 UTCJul 25, 03:00 UTC25m
2026-07-25 SRY1210 ANC → SDP Jul 25, 00:25 UTCJul 25, 01:50 UTC1h 25m
2026-07-24 SRY1210 ANC → SDP Jul 24, 20:40 UTCJul 24, 22:05 UTC1h 25m
2026-07-24 SRY1105 - Jul 24, 14:10 UTCJul 24, 19:15 UTC5h 5m
2026-07-24 SRY1404 HOM → ANC Jul 24, 04:00 UTCJul 24, 04:35 UTC35m
2026-07-24 SRY1403 ANC → HOM Jul 24, 02:45 UTCJul 24, 03:10 UTC25m
2026-07-23 SRY1101 ANC → DUT Jul 23, 20:10 UTCJul 24, 01:45 UTC5h 35m
2026-07-23 SRY1502 AKN → ANC Jul 23, 17:35 UTCJul 23, 18:25 UTC50m
2026-07-23 SRY1501 ANC → AKN Jul 23, 15:55 UTCJul 23, 17:05 UTC1h 10m
2026-07-23 SRY1103 ANC → DUT Jul 23, 00:10 UTCJul 23, 05:40 UTC5h 30m
2026-07-22 SRY1101 ANC → DUT Jul 22, 18:00 UTCJul 22, 23:25 UTC5h 25m
2026-07-22 SRY1402 HOM → ANC Jul 22, 16:35 UTCJul 22, 17:10 UTC35m
2026-07-22 SRY1401 ANC → HOM Jul 22, 15:05 UTCJul 22, 15:35 UTC30m
2026-07-22 SRY1403 ANC → HOM Jul 22, 04:45 UTCJul 22, 05:10 UTC25m
2026-07-22 SRY1802 SNP → ANC Jul 22, 02:05 UTCJul 22, 04:00 UTC1h 55m
2026-07-21 SRY1801 ANC → SNP Jul 21, 22:45 UTCJul 22, 01:10 UTC2h 25m
2026-07-21 SRY1602 UNK → ANC Jul 21, 20:35 UTCJul 21, 21:35 UTC1h 0m
2026-07-21 SRY1601 ANC → UNK Jul 21, 18:35 UTCJul 21, 19:40 UTC1h 5m
2026-07-21 SRY1512 - Jul 21, 16:30 UTCJul 21, 17:25 UTC55m
2026-07-21 SRY1511 ANC → AKN Jul 21, 14:50 UTCJul 21, 15:55 UTC1h 5m
2026-07-21 SRY1404 HOM → ANC Jul 21, 03:50 UTCJul 21, 04:15 UTC25m
2026-07-21 SRY1403 ANC → HOM Jul 21, 02:25 UTCJul 21, 02:45 UTC20m
2026-07-20 SRY1406 - Jul 20, 23:20 UTCJul 20, 23:45 UTC25m
2026-07-20 SRY1405 - Jul 20, 22:05 UTCJul 20, 22:30 UTC25m
2026-07-20 SRY1512 AKN → ANC Jul 20, 16:55 UTCJul 20, 17:50 UTC55m
2026-07-20 SRY1511 ANC → AKN Jul 20, 15:20 UTCJul 20, 16:20 UTC1h 0m
2026-07-20 SRY1802 SNP → ANC Jul 20, 03:00 UTCJul 20, 05:10 UTC2h 10m
2026-07-19 SRY1801 ANC → SNP Jul 19, 22:55 UTCJul 20, 01:10 UTC2h 15m
2026-07-19 SRY1602 UNK → ANC Jul 19, 20:55 UTCJul 19, 22:05 UTC1h 10m
2026-07-19 SRY1601 ANC → UNK Jul 19, 19:05 UTCJul 19, 19:55 UTC50m
2026-07-19 SRY1512 - Jul 19, 17:00 UTCJul 19, 17:50 UTC50m
2026-07-19 SRY1511 - Jul 19, 15:20 UTCJul 19, 16:25 UTC1h 5m
2026-07-18 SRY3102 DLG → ANC Jul 18, 23:00 UTCJul 18, 23:50 UTC50m
2026-07-18 SRY3101 ANC → DLG Jul 18, 21:00 UTCJul 18, 22:05 UTC1h 5m
2026-07-18 SRY1512 - Jul 18, 16:20 UTCJul 18, 17:05 UTC45m
2026-07-18 SRY1511 - Jul 18, 14:40 UTCJul 18, 15:40 UTC1h 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 N811BB page for operator, model, and routing details .

Mode-S AB0D2E frequently asked

What is Mode-S code AB0D2E?
AB0D2E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N811BB.
Where is Mode-S AB0D2E registered?
Mode-S code AB0D2E 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 AB0D2E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB0D2E, octal 52606456, decimal 11,210,030.
What flights does AB0D2E operate?
Mode-S AB0D2E has broadcast 20 distinct callsigns, including SRY1402, SRY1401, QHD811, SRY1403, SRY1404.