sensors Mode-S transponder
4A2182
ICAO 24-bit transponder address · allocated to Romania
Currently assigned to YR-HLB · BOEING 737-800
- Hex
- 4A2182
- Octal
- 22420602
- Decimal
- 4,858,242
- Country
- RO
- Tail
- YR-HLB
- Type
- B738
- Flights observed
- 183
- Distinct callsigns
- 20
- Country
- RO
- Last broadcast
- Jul 26, 20:45 UTC
Last known position
Country allocation
The ICAO 24-bit address 4A2182 falls within the block assigned to Romania (RO) by ICAO Annex 10, Volume III. Every aircraft registered in Romania 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 |
|---|---|---|---|
| HLJ1AC | - | 45 | 2026-07-25 |
| HLJ1EG | - | 35 | 2026-07-18 |
| HLJ3DF | - | 15 | 2026-07-23 |
| HLJ1AD | - | 15 | 2026-07-26 |
| HLJ3AP | - | 12 | 2026-07-19 |
| HLJ1QR | - | 8 | 2026-07-21 |
| HLJ5AN | - | 7 | 2026-07-21 |
| HLJ260 | - | 4 | 2026-06-30 |
| HLJ1CF | - | 4 | 2026-07-11 |
| HLJ6SS | - | 3 | 2026-07-21 |
| HLJ3SB | - | 3 | 2026-07-21 |
| HLJ3EH | - | 3 | 2026-07-25 |
| HLJ261 | - | 3 | 2026-06-30 |
| HLJ814F | - | 2 | 2026-06-10 |
| HLJ4AB | - | 2 | 2026-06-11 |
| HLJ909T | - | 1 | 2026-06-24 |
| HLJ815F | - | 1 | 2026-06-11 |
| HLJ813F | Hello Jets | 1 | 2026-06-04 |
| HLJ810F | - | 1 | 2026-05-28 |
| HLJ808F | - | 1 | 2026-05-27 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | HLJ1AD | - | Jul 26, 10:15 UTC | Jul 26, 20:45 UTC | 10h 30m |
| 2026-07-25 | HLJ3EH | - | Jul 25, 22:15 UTC | Jul 26, 09:05 UTC | 10h 51m |
| 2026-07-25 | HLJ1AC | - | Jul 25, 10:15 UTC | Jul 25, 20:55 UTC | 10h 40m |
| 2026-07-24 | HLJ3EH | - | Jul 24, 22:10 UTC | Jul 25, 08:45 UTC | 10h 35m |
| 2026-07-23 | HLJ3DF | - | Jul 23, 22:35 UTC | Jul 24, 09:25 UTC | 10h 50m |
| 2026-07-23 | AWG6000 | - | Jul 23, 16:05 UTC | Jul 23, 17:25 UTC | 1h 20m |
| 2026-07-23 | AWG611T | - | Jul 23, 12:30 UTC | Jul 23, 15:00 UTC | 2h 30m |
| 2026-07-23 | AWG610M | - | Jul 23, 08:55 UTC | Jul 23, 11:25 UTC | 2h 30m |
| 2026-07-23 | AWG4141 | EFL → OTP | Jul 23, 06:15 UTC | Jul 23, 07:40 UTC | 1h 25m |
| 2026-07-23 | AWG4140 | OTP → EFL | Jul 23, 03:45 UTC | Jul 23, 05:15 UTC | 1h 30m |
| 2026-07-22 | AWG6001 | - | Jul 22, 11:20 UTC | Jul 22, 12:35 UTC | 1h 15m |
| 2026-07-21 | HLJ3DF | - | Jul 21, 22:50 UTC | Jul 22, 01:40 UTC | 2h 50m |
| 2026-07-21 | HLJ6SS | - | Jul 21, 14:40 UTC | Jul 21, 15:50 UTC | 1h 10m |
| 2026-07-21 | HLJ1QR | - | Jul 21, 11:15 UTC | Jul 21, 12:45 UTC | 1h 30m |
| 2026-07-21 | HLJ5AN | - | Jul 21, 08:30 UTC | Jul 21, 10:00 UTC | 1h 30m |
| 2026-07-21 | HLJ3SB | - | Jul 21, 05:10 UTC | Jul 21, 06:10 UTC | 1h 0m |
| 2026-07-20 | HLJ1AD | - | Jul 20, 12:50 UTC | Jul 20, 22:55 UTC | 10h 5m |
| 2026-07-20 | HLJ3EH | - | Jul 20, 00:35 UTC | Jul 20, 11:40 UTC | 11h 5m |
| 2026-07-19 | HLJ3AP | - | Jul 19, 10:00 UTC | Jul 19, 20:40 UTC | 10h 40m |
| 2026-07-18 | HLJ1EG | - | Jul 18, 22:10 UTC | Jul 19, 08:30 UTC | 10h 20m |
| 2026-07-18 | HLJ1AC | - | Jul 18, 10:20 UTC | Jul 18, 20:55 UTC | 10h 35m |
| 2026-07-17 | HLJ1EG | - | Jul 17, 22:25 UTC | Jul 18, 08:55 UTC | 10h 31m |
| 2026-07-16 | HLJ1AC | BRQ → BRQ | Jul 16, 22:40 UTC | Jul 17, 09:45 UTC | 11h 5m |
| 2026-07-14 | HLJ1AC | BRQ → BRQ | Jul 14, 22:40 UTC | Jul 15, 09:45 UTC | 11h 4m |
| 2026-07-14 | HLJ6SS | - | Jul 14, 14:30 UTC | Jul 14, 15:45 UTC | 1h 15m |
| 2026-07-14 | HLJ1QR | - | Jul 14, 11:20 UTC | Jul 14, 12:40 UTC | 1h 20m |
| 2026-07-14 | HLJ5AN | - | Jul 14, 08:05 UTC | Jul 14, 09:50 UTC | 1h 45m |
| 2026-07-14 | HLJ3SB | - | Jul 14, 05:00 UTC | Jul 14, 06:00 UTC | 1h 0m |
| 2026-07-13 | HLJ1AD | - | Jul 13, 12:35 UTC | Jul 13, 22:55 UTC | 10h 20m |
| 2026-07-13 | HLJ1EG | - | Jul 13, 00:25 UTC | Jul 13, 11:20 UTC | 10h 55m |
| 2026-07-12 | HLJ1AD | - | Jul 12, 18:05 UTC | Jul 12, 20:25 UTC | 2h 20m |
| 2026-07-12 | HLJ3AP | - | Jul 12, 10:10 UTC | Jul 12, 17:10 UTC | 7h 0m |
| 2026-07-11 | HLJ1CF | - | Jul 11, 22:15 UTC | Jul 12, 08:35 UTC | 10h 20m |
| 2026-07-11 | HLJ1AC | - | Jul 11, 13:20 UTC | Jul 11, 20:50 UTC | 7h 30m |
| 2026-07-11 | HLJ3AP | - | Jul 11, 10:25 UTC | Jul 11, 12:55 UTC | 2h 30m |
| 2026-07-10 | HLJ1EG | - | Jul 10, 22:25 UTC | Jul 11, 08:40 UTC | 10h 15m |
| 2026-07-09 | HLJ1AC | BRQ → BRQ | Jul 9, 22:35 UTC | Jul 10, 09:40 UTC | 11h 5m |
| 2026-07-07 | HLJ1AC | BRQ → BRQ | Jul 7, 22:40 UTC | Jul 8, 09:45 UTC | 11h 5m |
| 2026-07-07 | HLJ6SS | - | Jul 7, 15:00 UTC | Jul 7, 16:15 UTC | 1h 15m |
| 2026-07-07 | HLJ1QR | - | Jul 7, 11:20 UTC | Jul 7, 12:30 UTC | 1h 10m |
| 2026-07-07 | HLJ5AN | - | Jul 7, 08:30 UTC | Jul 7, 09:55 UTC | 1h 25m |
| 2026-07-07 | HLJ3SB | BRQ → TGD | Jul 7, 05:20 UTC | Jul 7, 06:20 UTC | 1h 0m |
| 2026-07-06 | HLJ1AD | - | Jul 6, 12:25 UTC | Jul 6, 22:50 UTC | 10h 25m |
| 2026-07-06 | HLJ1EG | BRQ → OSR | Jul 6, 00:45 UTC | Jul 6, 11:20 UTC | 10h 35m |
| 2026-07-05 | HLJ1AD | - | Jul 5, 10:15 UTC | Jul 5, 20:50 UTC | 10h 35m |
| 2026-07-04 | HLJ1EG | - | Jul 4, 22:30 UTC | Jul 5, 08:40 UTC | 10h 10m |
| 2026-07-04 | HLJ1AC | - | Jul 4, 10:15 UTC | Jul 4, 21:00 UTC | 10h 45m |
| 2026-07-04 | HLJ1EG | - | Jul 4, 05:45 UTC | Jul 4, 09:00 UTC | 3h 15m |
| 2026-07-03 | HLJ3DF | - | Jul 3, 22:10 UTC | Jul 4, 00:20 UTC | 2h 10m |
| 2026-07-02 | HLJ1AC | BRQ → BRQ | Jul 2, 22:35 UTC | Jul 3, 09:35 UTC | 11h 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 YR-HLB page for operator, model, and routing details .