Decode and organize multiple serial numbers in one workflow. The Large Loss Decoder is built for adjusters, contents professionals, restoration teams, and anyone researching multiple items from the same loss, inventory, or property. Add each item as a row, then process the batch while keeping the age result, model information, and decode status together.
| # | Category | Brand | Serial Number | Model (Optional) | Age/Year | Status | Actions |
|---|
The Large Loss Decoder uses the same brand-specific serial-number decoding approach as the individual Serial Number Decoder, but organizes multiple items into one batch workflow. Each row is evaluated independently, so one unsupported or ambiguous serial does not make the rest of the list unusable.
Each row's Status column moves from Pending to Loading while the batch runs, then settles on either ✓ Decoded or ✗ Error. The Age/Year column shows the decoded result once available, and the Explain button opens a breakdown for that row — estimated age, year code, month or period, decoding method, and any notes on a successful row, or the specific reason a row could not be decoded.
If a serial number can represent more than one possible year, or the brand does not have a verified deterministic rule, Decode My Item should not invent a precise age. You'll see every candidate year the code matches rather than a single guessed date. Review the row individually, or use Smart Lookup for additional product research on items the decoder can't resolve.
Researching many items one at a time in the Serial Number Decoder works, but re-entering brand and category for every item adds up quickly on a large list. The Large Loss Decoder keeps every item's inputs and results in one table, so a full inventory can be built, decoded, and reviewed in a single pass instead of dozens of separate lookups.
Multiple items, one batch. Best when you're researching an inventory rather than a single serial number.
Direct, deterministic serial decoding for a single item. Open the decoder →
Model or product research when serial decoding is insufficient or unsupported. Open Smart Lookup →
Use an established item age as part of a depreciation estimate. Open the calculator →
Results depend on the serial format supplied by the manufacturer. A deterministic decoded year is different from an estimated product age. Decode My Item does not force a year when the available serial data does not support one — see the full methodology for how decoder rules are researched, verified, and how ambiguous results are handled.
Continue your research or move a confirmed age into a depreciation estimate. For discontinued items or documentation beyond what these tools cover, Item Assist also offers human-reviewed Contents Research starting at $75.