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Idt vs Lumen Technologies: revenue, profit, margins and growth compared

Idt brought in $1.2B of revenue in fiscal 2025, Lumen Technologies $12.4B in fiscal 2025. Revenue changed by +2.1% at Idt and -5.4% at Lumen Technologies on the year before, so Idt grew faster. Idt kept 6.2% of its revenue as net profit, Lumen Technologies -14.0%. Free cash flow was $106.3M at Idt and $371M at Lumen Technologies.

Side by side, latest fiscal year

IDTLUMN
Fiscal year endedFY2025 (July 31, 2025)FY2025 (December 31, 2025)
Revenue$1.2B$12.4B
Revenue growth+2.1%-5.4%
Net income$76.1M-$1.7B
Net margin6.2%-14.0%
Free cash flow$106.3M$371M
Free cash flow margin8.6%3.0%
Earnings per share (diluted)$3.01-$1.75
Cash$226.5M$1B
Debtn/a$17.4B
Price to earnings22.4n/a
Market value$1.7B$5.9B
Dividend yield0.33%n/a
Rank by revenue in sector#23 of 51 · Telecommunications#8 of 51 · Telecommunications

Over the years

Revenue
IDT FY2018: $1.5BIDT FY2019: $1.4BIDT FY2020: $1.3BIDT FY2021: $1.4BIDT FY2022: $1.4BIDT FY2023: $1.2BIDT FY2024: $1.2BIDT FY2025: $1.2BLUMN FY2018: $22.6BLUMN FY2019: $21.5BLUMN FY2020: $20.7BLUMN FY2021: $19.7BLUMN FY2022: $17.5BLUMN FY2023: $14.6BLUMN FY2024: $13.1BLUMN FY2025: $12.4BFY18FY19FY20FY21FY22FY23FY24FY25
IDT $1.2BLUMN $12.4B
Net income
IDT FY2018: $4.2MIDT FY2019: $134KIDT FY2020: $21.4MIDT FY2021: $96.5MIDT FY2022: $27MIDT FY2023: $40.5MIDT FY2024: $64.5MIDT FY2025: $76.1MLUMN FY2018: -$1.7BLUMN FY2019: -$5.3BLUMN FY2020: -$1.2BLUMN FY2021: $2BLUMN FY2022: -$1.5BLUMN FY2023: -$10.3BLUMN FY2024: -$55MLUMN FY2025: -$1.7BFY18FY19FY20FY21FY22FY23FY24FY25
IDT $76.1MLUMN -$1.7B
Net margin
IDT FY2018: 0.3%IDT FY2019: 0.0%IDT FY2020: 1.6%IDT FY2021: 6.7%IDT FY2022: 2.0%IDT FY2023: 3.3%IDT FY2024: 5.3%IDT FY2025: 6.2%LUMN FY2018: -7.7%LUMN FY2019: -24.6%LUMN FY2020: -5.9%LUMN FY2021: 10.3%LUMN FY2022: -8.9%LUMN FY2023: -70.7%LUMN FY2024: -0.4%LUMN FY2025: -14.0%FY18FY19FY20FY21FY22FY23FY24FY25
IDT 6.2%LUMN -14.0%
Revenue growth
IDT FY2019: -8.9%IDT FY2020: -4.5%IDT FY2021: +7.5%IDT FY2022: -5.7%IDT FY2023: -9.2%IDT FY2024: -2.7%IDT FY2025: +2.1%LUMN FY2019: -5.0%LUMN FY2020: -3.5%LUMN FY2021: -4.9%LUMN FY2022: -11.2%LUMN FY2023: -16.7%LUMN FY2024: -10.0%LUMN FY2025: -5.4%FY19FY20FY21FY22FY23FY24FY25
IDT +2.1%LUMN -5.4%
Free cash flow
IDT FY2018: -$173KIDT FY2019: $66.5MIDT FY2020: -$45.6MIDT FY2021: $49.9MIDT FY2022: $7.5MIDT FY2023: $30.4MIDT FY2024: $59.3MIDT FY2025: $106.3MLUMN FY2018: $3.9BLUMN FY2019: $3.1BLUMN FY2020: $2.8BLUMN FY2021: $3.6BLUMN FY2022: $1.7BLUMN FY2023: -$940MLUMN FY2024: $1.1BLUMN FY2025: $371MFY18FY19FY20FY21FY22FY23FY24FY25
IDT $106.3MLUMN $371M

Fiscal years as each company reports them; the two may end in different months.

Questions about Idt and Lumen Technologies

Which is bigger by revenue, Idt or Lumen Technologies?

Lumen Technologies is bigger by revenue: $12.4B in fiscal 2025, against $1.2B for Idt in fiscal 2025.

Which keeps more of its revenue as profit, Idt or Lumen Technologies?

Idt had a net margin of 6.2% in fiscal 2025; Lumen Technologies had -14.0% in fiscal 2025.

Which grew revenue faster, Idt or Lumen Technologies?

In their latest fiscal years revenue changed by +2.1% at Idt and -5.4% at Lumen Technologies.

Where do these numbers come from?

From the annual reports each company files with the SEC (10-K, or 20-F and 40-F for foreign companies), read from their XBRL data. Margins and growth are simple arithmetic on those figures. Nothing here is a recommendation.

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