US-Listed Telephone Communications (No Radiotelephone) — EBITDA Margin Percentiles, FY 2019

Methodology & sources
EBITDA margin = (operating income + depreciation & amortization) / revenue, all values as filed; computed in SQL per company, then percentiles. Fiscal year 2019 = fiscal years ending 2019-06-01 to 2020-05-31 (majority-overlap rule; June-ending fiscal years count toward the ending calendar year).
Source: SEC EDGAR filings (public domain). Data: FACTANKER registry, precomputed 2026-09-03.