---
id: "h3_cell"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["geo"]
langs: ["common"]
quality: 75
url: "http://registry.apicrafter.io/datatype/h3_cell"
---

# H3 cell index (`h3_cell`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Index of a cell (hexagon or pentagon) of H3, the hierarchical hexagonal grid system developed at Uber. The 64-bit index holds the index mode (1 for a cell), the resolution from 0 to 15, one of 122 base cells and one digit from 0 to 6 for each finer resolution; unused digits are set to 7. The canonical text form is lowercase hexadecimal without padding or prefix, so a cell index has 15 characters, starts with 8, and its second character is the resolution. H3 directed edge and vertex indexes use other modes and are not covered.

- Personal data (PII): no
- Categories: Geographic identifiers (geo)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^8[0-9a-f]{14}$
```

## Examples

- `85283473fffffff` — Resolution 5 cell used in the H3 API documentation
- `822d57fffffffff` — Resolution 2 cell from the H3 API documentation
- `0x85283473fffffff` (invalid example) — The canonical form has no prefix
- `85283473fffffff0` (invalid example) — Sixteen characters

## Sources

- doc: <https://h3geo.org/docs/library/index/cell>
- doc: <https://h3geo.org/docs/core-library/h3Indexing>

## Quality

Score 75/100. Missing: mapping (Wikidata, Schema.org, ...), translation, detector coverage.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/h3_cell.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/geo/h3_cell.yaml>