RespOrg directory

Lumen Technologies

alias: Century Link

Large Telcom Group: Lumen

Looking for a toll free number from Lumen Technologies?

Tell us which number you want. We'll forward your request to Lumen Technologies and follow up. Free to ask, reply within one business day.

Request a number from Lumen Technologies →

Lumen Technologies Lumen Technologies, Inc. (formerly CenturyLink, Inc.) is a public telecommunications company (NYSE: LUMN) providing network, security, cloud, voice, and managed communications services via fiber optic and copper networks, data centers, and … read more ↓

Transfer network

How toll free numbers move between Lumen Technologies (IX) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; Lumen Technologies is highlighted. Open the full interactive map →

Scroll to zoom, drag to pan, drag a node to reposition.

Transfer Funnel (acquired at a drop, then moved on) Off-hours fast pickup
Lumen Technologies website screenshot
Website, visit, full size
Based in Arlington Heights, IL
Based in Arlington Heights, IL, street view, full size
Based in Arlington Heights, IL
Based in Arlington Heights, IL, satellite, full size

At a glance

Active numbers
13,357
#145 of 481
Change over 4 years
+8,783
+192.0%
Opportunism Index
0.45%
#168 of 320
Vanity matches
14.8%
#175 of 206
Median inventory age
57 mo
4.8 years since last change
#65 of 206 oldest
Sub-codes in use
1
IXC01

Inventory by NPA

Click any NPA for total pool inventory across the industry.

By status

  • WORKING 13,335, 99.9%
  • UNAVAIL 8, 0.1%

Inventory age buckets

  • 2–5 years 13,319, 94.8%
  • 5+ years 16, 0.1%

Ages are measured from each number's last change in the Somos registry, that's the most recent activation, transfer, or status move. Not necessarily the date this RespOrg originally acquired it.

Request a manual history review of a specific toll free number →

Trajectory

Total active inventory Numbers harvested from disconnect pool that month
34K25K17K8K02018-032022-122026-06
Show monthly numbers
MonthInventoryAcquiredHarvestedLostFrom spareTo spare
2018-03 4,574 0 0 0 0 0
2018-06 4,565 0 0 9 0 1
2018-09 4,563 0 0 2 0 0
2018-10 4,561 0 0 2 0 0
2018-11 4,561 0 0 0 0 0
2018-12 4,561 0 0 0 0 0
2019-01 4,561 0 0 0 0 0
2019-02 4,562 1 0 0 1 0
2019-03 4,563 1 0 0 1 0
2019-04 4,562 0 0 1 0 0
2019-05 4,562 0 0 0 0 0
2019-06 4,562 0 0 0 0 0
2019-08 4,327 13 0 248 13 247
2019-09 4,572 247 0 2 247 2
2019-10 4,572 0 0 0 0 0
2019-11 4,572 0 0 0 0 0
2019-12 4,575 3 0 0 0 0
2020-01 4,572 0 0 3 0 0
2020-02 24 2 0 4,550 1 0
2020-03 23 0 0 1 0 1
2020-04 23 0 0 0 0 0
2020-05 25 2 0 0 2 0
2020-06 25 0 0 0 0 0
2020-07 23 0 0 2 0 0
2020-08 23 0 0 0 0 0
2020-09 23 0 0 0 0 0
2020-10 23 0 0 0 0 0
2020-11 23 0 0 0 0 0
2020-12 23 0 0 0 0 0
2021-01 23 0 0 0 0 0
2021-02 23 0 0 0 0 0
2021-03 24 1 0 0 1 0
2021-04 70 46 0 0 43 0
2021-05 69 0 0 1 0 1
2022-05 8,834 8,796 6 31 8,677 0
2022-06 8,829 0 0 5 0 5
2022-07 8,829 0 0 0 0 0
2022-08 8,829 0 0 0 0 0
2022-09 8,829 0 0 0 0 0
2022-10 9,329 500 0 0 492 0
2022-11 9,329 0 0 0 0 0
2022-12 9,329 0 0 0 0 0
2023-01 9,329 0 0 0 0 0
2023-02 8,829 0 0 500 0 404
2023-03 8,829 0 0 0 0 0
2023-04 8,829 0 0 0 0 0
2023-05 10,879 2,050 0 0 2,050 0
2023-06 21,109 10,230 0 0 10,170 0
2023-07 8,829 0 0 12,280 0 11,413
2023-08 31,399 22,570 61 0 20,841 0
2023-09 31,399 0 0 0 0 0
2023-10 31,399 0 0 0 0 0
2023-11 31,399 0 0 0 0 0
2023-12 33,798 2,400 153 1 2,241 0
2024-02 31,399 1 0 2,400 0 2,367
2024-03 31,398 0 0 1 0 0
2024-04 31,398 0 0 0 0 0
2024-05 33,802 2,404 0 0 2,404 0
2024-06 33,798 0 0 4 0 0
2024-07 33,798 0 0 0 0 0
2024-08 33,798 0 0 0 0 0
2024-09 33,798 0 0 0 0 0
2024-10 33,798 0 0 0 0 0
2024-11 33,798 0 0 0 0 0
2024-12 33,798 0 0 0 0 0
2025-01 33,798 0 0 0 0 0
2025-02 33,798 0 0 0 0 0
2025-03 33,798 0 0 0 0 0
2025-04 33,798 0 0 0 0 0
2025-05 33,798 0 0 0 0 0
2025-06 33,798 0 0 0 0 0
2025-07 33,798 0 0 0 0 0
2025-08 33,798 0 0 0 0 0
2025-09 33,798 0 0 0 0 0
2025-10 19,487 0 0 14,311 0 0
2025-11 19,487 0 0 0 0 0
2025-12 13,358 1 0 6,130 0 0
2026-01 13,358 0 0 0 0 0
2026-02 13,358 0 0 0 0 0
2026-03 13,358 0 0 0 0 0
2026-04 13,357 0 0 1 0 0
2026-05 13,357 0 0 0 0 0
2026-06 13,357 0 0 0 0 0

Flow patterns (42-month cumulative)

Inbound (numbers acquired)

Direct transfer from another RespOrg5,592.0
Harvested from disconnect pool660.0
First assigned from spare pool141,552.0
Reactivated own disconnects0.0

Outbound (numbers lost)

Direct transfer to another RespOrg16,764.0
Standard disconnect aging process (3+ months in DISC)20,442
Abbreviated disconnect period (1–2 months in DISC)19
Released directly to spare pool43,323.0

Of the 20,461 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 IX)

GA951.0Comet Media
KS322.0Lumen Technologies (Lumen)
OU107.0CallSource
IG77.0Genesys Telecom
WG74.0Immediate Services LLC
OM46.0Intrado Communications (Intrado)
PY42.0Fractel
YC40.0Marchex
LQ32.0Inteliquent
VM32.0Grasshopper

Top direct-transfer destinations (OUT of IX)

KS4,653.0Lumen Technologies (Lumen)
GA585.0Comet Media
OU57.0CallSource
OM46.0Intrado Communications (Intrado)
WG45.0Immediate Services LLC
IG37.0Genesys Telecom
YC36.0Marchex
BC20.0Incontact (Nice)
YV18.0Invoca
VM13.0Grasshopper

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.

About Lumen Technologies

Lumen Technologies, Inc. (formerly CenturyLink, Inc.) is a public telecommunications company (NYSE: LUMN) providing network, security, cloud, voice, and managed communications services via fiber optic and copper networks, data centers, and cloud computing.[1][2][4] Founded as CenturyLink (rebranded to Lumen in 2020), it is headquartered in Monroe, Louisiana, and employs approximately 29,000 people with reported revenues of $12.69 billion.[1][2][5] Note: User-provided HQ (Arlington Heights, IL) and website (centurylink.com) are outdated; current details corrected per sources.[1][2]

Toll free / RespOrg activity: No toll-free or RespOrg-specific news found in available sources. User-provided RespOrg code IXC01 unverified in results.

AI-generated summary (confidence: high), last updated 2026-04-30. Verify against primary sources before quoting.

Top vanity holdings

Contact-form message

with a customer of Lumen Technologies
Request a specific #