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Trademark owner · USPTO register · rebuilt nightly

Centurylink Communications, LLC

184 live US trademarks, filing since 1984. The 6th largest trademark holder in Class 38 (telecommunications). 3 new applications filed this year.

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Live marks
184
registered + pending
Registered
174
on the Principal Register
Pending
10
1 open to opposition
Filed in 2026
3
by filing date
Classes used
18
of 45 Nice classes
First filing
1984
42 years on the register
At a glanceplain-language reads of the register
Mostly telecommunications: 107 of 184 live marks are in Class 38. Science & technology (SaaS) (Class 42) is next with 29.
One mark is open to opposition now; the window closes Nov 19.
8 registrations have a maintenance filing due in the next 12 months, 5 already in the grace period.
Filing activityapplications per year, by filing date
0 24 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 3 so far

Marks held on the register, by filing date. 2026 is year to date.

Portfolio by classlive marks · rank among filers in that class

A multi-class mark counts once per class. Rank shown where the owner is in the class's top 50.

Latest activity

What Centurylink Communications, LLC filed most recently.

MarkClassFiledBasisStatusSerial
LUMEN 9, 35, 38, 42 May 20, 2026 — pending 99835982
LUMEN DEFENDER 42 Feb 3, 2026 — published 99631602
LUMEN CONNECT 42 Jan 23, 2026 — pending 99611423
AIR-LINE 9 Dec 18, 2025 — published 99554692
BERKELEY 9 Nov 13, 2025 — pending 99494919
PRIVATE CONNECTIVITY FABRIC 37 Sep 9, 2025 — pending 99382737
PRIVATE CONNECTIVITY FABRIC 42 Sep 9, 2025 — pending 99382764
PCF 42 Sep 8, 2025 — published 99381122
PCF 37 Sep 8, 2025 — registered Sep 22 99381093
CONNECTIVITY FABRIC 38, 42 Aug 7, 2025 — registered Aug 25 99325772
Open to opposition now30-day windows from publication
LUMEN THE TRUSTED NETWORK FOR AI · Cl. 38, 42 · published Oct 20
closes Nov 19

Anyone who believes they would be harmed by registration can oppose during this window.

Recently registeredlast 12 months
THE TRUSTED NETWORK FOR AI · Cl. 38, 42 · Reg. 8,452,028
Sep 22, 2026
PCF · Cl. 37 · Reg. 8,454,143
Sep 22, 2026
CONNECTIVITY FABRIC · Cl. 38, 42 · Reg. 8,417,399
Aug 25, 2026
PRIVATE CONNECTIVITY FABRIC · Cl. 38 · Reg. 8,198,425
Mar 31, 2026
PRIVATE CONNECTIVITY FABRIC · Cl. 38 · Reg. 8,198,426
Mar 31, 2026
PRIVATE CONNECTIVITY FABRIC · Cl. 42 · Reg. 8,198,427
Mar 31, 2026
PRIVATE CONNECTIVITY FABRIC · Cl. 38 · Reg. 8,198,428
Mar 31, 2026
LUMEN CLARKE M. WILLIAMS FOUNDATION · Cl. 36 · Reg. 8,005,209
Oct 28, 2025

Registration starts the maintenance clock: a Section 8 declaration is due between years 5 and 6.

Maintenance windows aheadnext 12 months · from registration dates
CENTURYLINK CARES · Reg. 6,044,191 · registered Apr 2020
Section 8 declaration (years 5–6) · in grace period until Oct 28, 2026
Apr 28, 2025 → Apr 28, 2026
CENTURYLINK WORKPLACE · Reg. 6,065,860 · registered May 2020
Section 8 declaration (years 5–6) · in grace period until Nov 26, 2026
May 26, 2025 → May 26, 2026
LUMEN · Reg. 7,014,454 · registered Jul 2020
Section 8 declaration (years 5–6) · in grace period until Jan 14, 2027
Jul 14, 2025 → Jul 14, 2026
LUMEN TECHNOLOGIES · Reg. 6,122,948 · registered Aug 2020
Section 8 declaration (years 5–6) · in grace period until Feb 11, 2027
Aug 11, 2025 → Aug 11, 2026
LUMEN · Reg. 6,122,949 · registered Aug 2020
Section 8 declaration (years 5–6) · in grace period until Feb 11, 2027
Aug 11, 2025 → Aug 11, 2026
CENTRON 50 · Reg. 1,417,741 · registered Nov 1986
Section 8 & 9 renewal (year 40)
Nov 18, 2025 → Nov 18, 2026
OFFICE NETWORK BACKER · Reg. 3,180,798 · registered Dec 2006
Section 8 & 9 renewal (year 20)
Dec 5, 2025 → Dec 5, 2026
HOME NETWORK BACKER · Reg. 3,180,799 · registered Dec 2006
Section 8 & 9 renewal (year 20)
Dec 5, 2025 → Dec 5, 2026

A filing missed by the due date enters a six-month grace period, then the registration cancels.

Other large filers in Class 38Full ranking →
Switch, Ltd. 404 live
Common questions

About Centurylink Communications, LLC trademarks.

How many trademarks does Centurylink Communications, LLC have?

184 live US trademarks as of October 23, 2026: 174 registered and 10 pending applications. 3 were filed in 2026 so far.

What does Centurylink Communications, LLC sell, according to its trademarks?

Mostly telecommunications (Class 38, 107 live marks). Also science & technology (saas) (Class 42) and construction & repair (Class 37).

Who owns the CENTRAFLEX trademark?

CENTRAFLEX is owned by Centurylink Communications, LLC. It was registered on February 12, 1985 (Reg. No. 1319896) and is live. The same owner holds 183 other live US marks.

When did Centurylink Communications, LLC first file a trademark?

Its oldest live US filing dates from 1984: DIGICOM, filed February 29, 1984.

Know the morning after Centurylink Communications, LLC files.

Watch this company in Thorgate and get an alert for every new application, registration, publication and lapse, with the opposition deadline already worked out. Or monitor your own marks for conflicts with theirs.

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Data: USPTO trademark bulk files, processed nightly by Thorgate. Last rebuilt October 23, 2026. Counts cover the US federal register only, not state or foreign marks. Owner names are shown as recorded by the USPTO. This page reports public-record facts and dates and is not legal advice. For the official record of any mark, follow its serial number to USPTO TSDR.