It’s dark in that the entity who purchased and installed it is not yet using it. Telcos install big multi fiber bundles, then actually use only a few strands. T

It’s dark in that the entity who purchased and installed it is not yet using it. Telcos install big multi fiber bundles, then actually use only a few strands. The rest are dark, waiting for growth or expansion or to be used as backups. You can lease those and light them up yourself until the telco needs them back.