---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-24-023610"
form_type: "8-K"
ticker: "RBBN"
cik: "0001708055"
company_name: "Ribbon Communications Inc."
filed_at: "2024-02-14T23:59:59+00:00"
generated_at: "2026-06-06T02:27:51.719593+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# Ribbon Communications Q4 revenue $226M; full-year adjusted EBITDA up 41% to $91M

## Summary
- Q4 revenue $226M (-3% YoY); full-year revenue $826M (+1% YoY).
- GAAP net income Q4 $7M vs $20M; full-year GAAP net loss improved to $(66)M from $(98)M.
- Non-GAAP adjusted EBITDA Q4 $43M (+48% YoY); full-year $91M (+42% YoY).
- IP Optical Networks segment profitable in H2 2023; Q4 sales >$100M with 8% adjusted EBITDA margin.
- CEO expects continued Enterprise and Federal growth; improving Tier One spending in H2 2024.

## SEC filing metadata
- accession: 0001104659-24-023610
- form_type: 8-K
- ticker: RBBN
- cik: 0001708055
- company_name: Ribbon Communications Inc.
- filed_at: 2024-02-14T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1708055/000110465924023610/0001104659-24-023610-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1708055/000110465924023610/tm246216d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-24-023610
- JSON: https://secwatch.observer/filing/0001104659-24-023610.json
- Plain text: https://secwatch.observer/filing/0001104659-24-023610.txt

## Key facts
- Earnings Releases
  Ribbon Communications Inc. reported the fourth quarter and year ended December 31, 2023 results: revenue $226 million, net income $7, EPS $0.04.
  - Period: the fourth quarter and year ended December 31, 2023
  - Revenue: $226 million
  - Net income: $7
  - EPS: $0.04
  - Result: reported results
  source text: Revenue for the fourth quarter of 2023 was $226 million, compared to $234 million for the fourth quarter of 2022 and $203 million for the third quarter of 2023. Revenue for full year 2023 was $826 million, compared to $820 million for full year 2022.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1708055/000110465924023610/0001104659-24-023610-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.