What is Lumen Technologies?

Lumen Technologies is a US toll-free Responsible Organization (RespOrg) identified by code FG. They manage and assign toll-free numbers on behalf of business customers.

How many toll-free numbers does Lumen Technologies have?

Lumen Technologies (FG) manages 14 active toll-free numbers as of 2026-04, according to the Somos toll-free registry tracked by Resporgs.com.

How do I request a specific toll-free number from Lumen Technologies?

Resporgs.com hosts a request form for Lumen Technologies at https://resporgs.com/ask/FG. Fill in the number you want and your contact details; we'll route the request to the appropriate party.

Lumen Technologies FG

alias: Century Link

Large Telcom Dormant Group: Lumen

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Website · visit · full size

Based in Arlington Heights, IL · street view · full size

Based in Arlington Heights, IL · satellite · full size

Website: centurylink.com Domain since 2006 (20y)
👥 Shared address (5 resporgs)

At a glance

Active numbers

#407 of 481

Change over 4 years

-1,039

-98.7%

Opportunism Index

0.19%

#215 of 228

Sub-codes in use

FGC01

Dormant RespOrg

This phone company is dead or nearly dead — almost zero numbers and little or no activity. Sometimes called a "zombie" RespOrg because they just won't die.

Last seen with active numbers: 2026-01. Nothing in any monthly snapshot since.

The trajectory chart below shows the full history. The code may have been transferred, retired, or reassigned to a new operator that hasn't begun activating numbers yet.

Trajectory

Total active inventory Numbers harvested from disconnect pool that month

Show monthly numbers

Month	Inventory	Acquired	Harvested	Lost	From spare	To spare
2018-03	1,053	0	0	0	0	0
2018-06	1,053	0	0	0	0	0
2018-09	1,053	0	0	0	0	0
2018-10	1,053	0	0	0	0	0
2018-11	1,053	0	0	0	0	0
2018-12	1,053	0	0	0	0	0
2019-01	1,053	0	0	0	0	0
2019-02	1,053	0	0	0	0	0
2019-03	1,053	0	0	0	0	0
2019-04	1,053	0	0	0	0	0
2019-05	1,053	0	0	0	0	0
2019-06	1,053	0	0	0	0	0
2019-08	599	0	0	454	0	454
2019-09	1,053	454	0	0	454	0
2019-10	1,053	0	0	0	0	0
2019-11	1,053	0	0	0	0	0
2019-12	1,053	0	0	0	0	0
2020-01	1,053	0	0	0	0	0
2020-02	14	0	0	1,039	0	0
2020-03	14	0	0	0	0	0
2020-04	14	0	0	0	0	0
2020-05	14	0	0	0	0	0
2020-06	14	0	0	0	0	0
2020-07	14	0	0	0	0	0
2020-08	14	0	0	0	0	0
2020-09	14	0	0	0	0	0
2020-10	14	0	0	0	0	0
2020-11	14	0	0	0	0	0
2020-12	14	0	0	0	0	0
2021-01	14	0	0	0	0	0
2021-02	14	0	0	0	0	0
2021-03	14	0	0	0	0	0
2021-04	14	0	0	0	0	0
2021-05	14	0	0	0	0	0
2022-05	14	0	0	0	0	0
2022-06	14	0	0	0	0	0
2022-07	14	0	0	0	0	0
2022-08	14	0	0	0	0	0
2022-09	14	0	0	0	0	0
2022-10	514	500	0	0	490	0
2022-11	514	0	0	0	0	0
2022-12	514	0	0	0	0	0
2023-01	514	0	0	0	0	0
2023-02	14	0	0	500	0	375
2023-03	14	0	0	0	0	0
2023-04	14	0	0	0	0	0
2023-05	14	0	0	0	0	0
2023-06	2,078	2,064	0	0	2,064	0
2023-07	14	0	0	2,064	0	1,909
2023-08	138	124	6	0	43	0
2023-09	138	0	0	0	0	0
2023-10	138	0	0	0	0	0
2023-11	138	0	0	0	0	0
2023-12	138	0	0	0	0	0
2024-02	138	0	0	0	0	0
2024-03	138	0	0	0	0	0
2024-04	138	0	0	0	0	0
2024-05	138	0	0	0	0	0
2024-06	138	0	0	0	0	0
2024-07	138	0	0	0	0	0
2024-08	138	0	0	0	0	0
2024-09	138	0	0	0	0	0
2024-10	138	0	0	0	0	0
2024-11	138	0	0	0	0	0
2024-12	138	0	0	0	0	0
2025-01	138	0	0	0	0	0
2025-02	138	0	0	0	0	0
2025-03	138	0	0	0	0	0
2025-04	138	0	0	0	0	0
2025-05	138	0	0	0	0	0
2025-06	138	0	0	0	0	0
2025-07	138	0	0	0	0	0
2025-08	138	0	0	0	0	0
2025-09	138	0	0	0	0	0
2025-10	138	0	0	0	0	0
2025-11	138	0	0	0	0	0
2025-12	138	0	0	0	0	0
2026-01	138	0	0	0	0	0
2026-02	14	0	0	124	0	0
2026-03	14	0	0	0	0	0
2026-04	14	0	0	0	0	0

Flow patterns (42-month cumulative)

Inbound (numbers acquired)

Direct transfer from another RespOrg	30.0
Harvested from disconnect pool	0.0
First assigned from spare pool	7,662.0
Reactivated own disconnects	0.0

Outbound (numbers lost)

Direct transfer to another RespOrg	2,284.0
Standard disconnect aging process (3+ months in DISC)	124
Abbreviated disconnect period (1–2 months in DISC)	0
Released directly to spare pool	2,596.0

Of the 124 disconnect episodes this RespOrg has sent through aging, 0% were abbreviated (1–2 snapshots in DISC status). This RespOrg lets most numbers age the full 3–4 months before release — normal pattern.

Top direct-transfer sources (INto FG)

GA	9.0	Comet Media
OU	1.0	CallSource

Top direct-transfer destinations (OUT of FG)

LQ	725.0	Inteliquent
FQ	225.0	Telcoline
GA	99.0	Comet Media
QI	29.0	Telnyx
DV	20.0	Direct2Market Digital Media Solutions
KS	17.0	Lumen Technologies (Lumen)
VZ	11.0	Verizon Business (Verizon)
IG	4.0	Genesys Telecom
GD	3.0	ANI Networks
BC	2.0	Incontact (Nice)

Summary

Formerly Century Link, among other names, Lumen is a large telecom company that's grown through numerous acquisitions and of course has multiple resporgs and systems and probably numerous numbers lost in the cracks. They also work with a number of resellers, though not as much as they used to. This makes finding the right segment of the company and the actual company providing the service especially hard.

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with Lumen Technologies

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