 |
| Subject | English | Thesaurus |
| abbr., IT | Custom Local Area Signaling Services | CLASS |
| telecom., abbr. | Custom Local Area Signaling Services | CLASS (Bellcore) |
| IT, abbr. | Custom Local-Area Signaling Services | CLASS |
| abbr. | Local area network Control Program | LCP (Vosoni) |
| telecom., abbr. | Local Area Signaling Services | LASS |