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Side-by-side financial comparison of QWEST CORP (CTBB) and KT CORP (KT). Click either name above to swap in a different company.

Qwest Corporation, doing business as CenturyLink QC, is a Regional Bell Operating Company owned by Lumen Technologies. It was originally named Mountain States Telephone and Telegraph Company, later becoming known as Mountain Bell, then US West Communications, Inc. from 1991 to 2000. It includes the former operations of Malheur Bell, Northwestern Bell and Pacific Northwest Bell as well.

KT Corporation, formerly Korea Telecom, is a South Korean telecommunications company, mobile network operator (MNO) and mobile virtual network operator (MVNO). KT is the large wireless carrier in South Korea, with 13.5 million subscribers as of Q4 2023.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
CTBB
CTBB
KT
KT
Q4 25
$1.1B
Q3 25
$1.1B
Q2 25
$1.1B
Q1 25
$1.2B
Q4 24
$1.3B
Q3 24
$1.3B
Q2 24
$1.3B
Q1 24
$1.3B
Net Profit
CTBB
CTBB
KT
KT
Q4 25
$-2.1B
Q3 25
$176.0M
Q2 25
$277.0M
Q1 25
$284.0M
Q4 24
$391.0M
Q3 24
$365.0M
Q2 24
$378.0M
Q1 24
$353.0M
Gross Margin
CTBB
CTBB
KT
KT
Q4 25
67.9%
Q3 25
65.3%
Q2 25
68.2%
Q1 25
69.3%
Q4 24
71.2%
Q3 24
69.9%
Q2 24
71.6%
Q1 24
71.9%
Operating Margin
CTBB
CTBB
KT
KT
Q4 25
-183.2%
Q3 25
22.3%
Q2 25
33.1%
Q1 25
33.7%
Q4 24
40.7%
Q3 24
38.5%
Q2 24
40.3%
Q1 24
37.6%
Net Margin
CTBB
CTBB
KT
KT
Q4 25
-187.5%
Q3 25
16.1%
Q2 25
24.3%
Q1 25
24.7%
Q4 24
30.2%
Q3 24
28.2%
Q2 24
28.7%
Q1 24
26.8%

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

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