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Lumen Technologies Lumen Technologies, formerly CenturyLink, is a publicly traded (NYSE: LUMN) telecommunications company providing network connectivity, cloud access, security solutions, voice services, and managed IT primarily to enterprise, government, and… read more ↓
Transfer network
How toll free numbers move between Lumen Technologies (IN) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; Lumen Technologies is highlighted. Open the full interactive map →
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- Website: https://www.centurylink.com/ Domain since 2006 (20y)
- Phone: (877) 453-8353 via web search: lumen.com
At a glance
#19 of 206 oldest
Inventory by NPA
Click any NPA for total pool inventory across the industry.
By status
- WORKING 24,354, 97.8%
- TRANSIT 541, 2.2%
- UNAVAIL 8, 0.0%
- DISCONN 1, 0.0%
Inventory age buckets
- < 1 month 3, 0.0%
- 1–3 months 5,814, 21.4%
- 3–12 months 65, 0.2%
- 1–2 years 104, 0.4%
- 2–5 years 945, 3.5%
- 5+ years 17,422, 64.2%
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
Show monthly numbers
| Month | Inventory | Acquired | Harvested | Lost | From spare | To spare |
|---|---|---|---|---|---|---|
| 2018-03 | 106,641 | 0 | 0 | 0 | 0 | 0 |
| 2018-06 | 101,943 | 1,421 | 13 | 6,119 | 972 | 1,217 |
| 2018-09 | 99,132 | 582 | 0 | 3,393 | 422 | 134 |
| 2018-10 | 98,442 | 527 | 0 | 1,217 | 353 | 10 |
| 2018-11 | 97,672 | 345 | 0 | 1,115 | 281 | 30 |
| 2018-12 | 97,222 | 156 | 0 | 606 | 93 | 5 |
| 2019-01 | 96,287 | 85 | 0 | 1,020 | 27 | 15 |
| 2019-02 | 95,515 | 106 | 0 | 878 | 60 | 8 |
| 2019-03 | 93,676 | 50 | 0 | 1,889 | 19 | 3 |
| 2019-04 | 92,420 | 151 | 1 | 1,407 | 79 | 0 |
| 2019-05 | 88,612 | 131 | 0 | 3,939 | 36 | 11 |
| 2019-06 | 88,706 | 743 | 0 | 649 | 592 | 1 |
| 2019-08 | 84,550 | 2,251 | 8 | 6,407 | 176 | 5,054 |
| 2019-09 | 88,110 | 4,447 | 0 | 887 | 4,417 | 19 |
| 2019-10 | 84,064 | 131 | 0 | 4,177 | 63 | 1 |
| 2019-11 | 82,616 | 91 | 0 | 1,539 | 32 | 0 |
| 2019-12 | 82,158 | 140 | 0 | 598 | 73 | 1 |
| 2020-01 | 81,804 | 100 | 0 | 454 | 64 | 0 |
| 2020-02 | 81,055 | 116 | 0 | 865 | 33 | 8 |
| 2020-03 | 80,409 | 180 | 0 | 826 | 156 | 0 |
| 2020-04 | 78,852 | 93 | 0 | 1,650 | 52 | 33 |
| 2020-05 | 76,482 | 68 | 0 | 2,438 | 31 | 9 |
| 2020-06 | 74,465 | 87 | 0 | 2,104 | 45 | 2 |
| 2020-07 | 73,012 | 150 | 0 | 1,603 | 99 | 0 |
| 2020-08 | 69,177 | 172 | 0 | 4,007 | 7 | 2 |
| 2020-09 | 68,742 | 279 | 0 | 714 | 43 | 0 |
| 2020-10 | 68,092 | 42 | 0 | 692 | 15 | 0 |
| 2020-11 | 67,393 | 264 | 3 | 963 | 13 | 0 |
| 2020-12 | 66,048 | 101 | 0 | 1,446 | 3 | 1 |
| 2021-01 | 63,923 | 144 | 0 | 2,269 | 64 | 0 |
| 2021-02 | 62,520 | 37 | 0 | 1,440 | 8 | 1 |
| 2021-03 | 61,246 | 24 | 0 | 1,298 | 13 | 0 |
| 2021-04 | 60,318 | 39 | 0 | 967 | 14 | 0 |
| 2021-05 | 57,226 | 81 | 0 | 3,173 | 47 | 0 |
| 2022-05 | 44,980 | 277 | 4 | 12,523 | 109 | 1,111 |
| 2022-06 | 44,040 | 54 | 10 | 994 | 41 | 0 |
| 2022-07 | 42,718 | 9 | 0 | 1,331 | 3 | 0 |
| 2022-08 | 42,243 | 46 | 0 | 521 | 3 | 0 |
| 2022-09 | 41,877 | 40 | 2 | 406 | 22 | 0 |
| 2022-10 | 40,947 | 5 | 0 | 935 | 1 | 0 |
| 2022-11 | 40,577 | 15 | 0 | 385 | 2 | 0 |
| 2022-12 | 39,961 | 7 | 0 | 623 | 2 | 0 |
| 2023-01 | 39,262 | 7 | 0 | 706 | 2 | 1 |
| 2023-02 | 38,615 | 11 | 0 | 658 | 1 | 0 |
| 2023-03 | 38,177 | 5 | 0 | 443 | 3 | 0 |
| 2023-04 | 37,856 | 92 | 0 | 413 | 83 | 0 |
| 2023-05 | 37,532 | 15 | 0 | 339 | 1 | 42 |
| 2023-06 | 37,287 | 20 | 0 | 265 | 0 | 0 |
| 2023-07 | 42,718 | 5,615 | 10 | 184 | 425 | 22 |
| 2023-08 | 36,279 | 201 | 2 | 6,640 | 27 | 485 |
| 2023-09 | 35,882 | 23 | 0 | 420 | 1 | 0 |
| 2023-10 | 35,599 | 1 | 0 | 284 | 1 | 0 |
| 2023-11 | 34,828 | 43 | 0 | 814 | 41 | 0 |
| 2023-12 | 29,292 | 29 | 0 | 5,565 | 7 | 547 |
| 2024-02 | 33,720 | 4,446 | 19 | 18 | 411 | 8 |
| 2024-03 | 33,163 | 2 | 0 | 559 | 0 | 0 |
| 2024-04 | 32,911 | 3 | 0 | 255 | 2 | 0 |
| 2024-05 | 32,582 | 3 | 0 | 332 | 3 | 0 |
| 2024-06 | 32,156 | 3 | 0 | 429 | 3 | 0 |
| 2024-07 | 31,898 | 2 | 0 | 260 | 1 | 0 |
| 2024-08 | 31,650 | 1 | 0 | 249 | 1 | 0 |
| 2024-09 | 30,724 | 2 | 0 | 928 | 0 | 0 |
| 2024-10 | 30,220 | 1 | 0 | 505 | 0 | 0 |
| 2024-11 | 29,806 | 41 | 0 | 455 | 40 | 0 |
| 2024-12 | 29,494 | 0 | 0 | 312 | 0 | 0 |
| 2025-01 | 29,063 | 43 | 3 | 474 | 38 | 0 |
| 2025-02 | 28,851 | 1 | 0 | 213 | 1 | 0 |
| 2025-03 | 28,851 | 0 | 0 | 0 | 0 | 0 |
| 2025-04 | 28,558 | 2 | 0 | 295 | 0 | 0 |
| 2025-05 | 28,030 | 2 | 0 | 530 | 0 | 0 |
| 2025-06 | 27,811 | 0 | 0 | 219 | 0 | 0 |
| 2025-07 | 27,657 | 0 | 0 | 154 | 0 | 0 |
| 2025-08 | 27,434 | 1 | 0 | 224 | 0 | 0 |
| 2025-09 | 27,104 | 0 | 0 | 330 | 0 | 0 |
| 2025-10 | 26,965 | 0 | 0 | 139 | 0 | 0 |
| 2025-11 | 26,734 | 1 | 0 | 232 | 0 | 0 |
| 2025-12 | 26,463 | 3 | 0 | 274 | 0 | 0 |
| 2026-01 | 26,161 | 0 | 0 | 302 | 0 | 0 |
| 2026-02 | 26,008 | 0 | 0 | 153 | 0 | 0 |
| 2026-03 | 25,887 | 10 | 0 | 131 | 10 | 0 |
| 2026-04 | 25,242 | 0 | 0 | 645 | 0 | 0 |
| 2026-05 | 25,079 | 0 | 0 | 163 | 0 | 0 |
| 2026-06 | 24,918 | 0 | 0 | 161 | 0 | 0 |
Flow patterns (42-month cumulative)
Inbound (numbers acquired)
| Direct transfer from another RespOrg | 43,962.0 |
| Harvested from disconnect pool | 225.0 |
| First assigned from spare pool | 29,061.0 |
| Reactivated own disconnects | 78.0 |
Outbound (numbers lost)
| Direct transfer to another RespOrg | 374,384.0 |
| Standard disconnect aging process (3+ months in DISC) | 2,000 |
| Abbreviated disconnect period (1–2 months in DISC) | 2,923 |
| Released directly to spare pool | 35,124.0 |
Of the 4,923 disconnect episodes this RespOrg has sent through aging, 59% were abbreviated (1–2 snapshots in DISC status).
Top direct-transfer sources (INto IN)
| KS | 2,191.0 | Lumen Technologies (Lumen) |
| QE | 1,744.0 | Cox Communications |
| JY | 868.0 | Bandwidth |
| QT | 816.0 | TouchTone |
| AT | 770.0 | AT&T |
| SO | 645.0 | Signal One |
| LE | 561.0 | Intelepeer |
| LG | 555.0 | Lumen Technologies (Lumen) |
| RB | 548.0 | RingCentral |
| IU | 471.0 | Interactive RespOrg Management |
Top direct-transfer destinations (OUT of IN)
| KS | 26,049.0 | Lumen Technologies (Lumen) |
| AU | 7,124.0 | ATL Communications (ATLC) |
| CE | 5,005.0 | RCN (Astound) |
| JY | 4,352.0 | Bandwidth |
| SO | 3,290.0 | Signal One |
| AT | 3,286.0 | AT&T |
| RB | 2,968.0 | RingCentral |
| LG | 2,614.0 | Lumen Technologies (Lumen) |
| VZ | 2,574.0 | Verizon Business (Verizon) |
| IU | 2,447.0 | Interactive RespOrg Management |
Summary
CenturyLink is part of Lumen Technologies offering quantum fiber, a fully digital platform for delivering fiber-based products and services to residences and small businesses. They have changed names and grown through acquisitions, and use resellers. That means if your number is with them, it may have been serviced by a different organization. It also means that they may have numbers stuck in the cracks.
About Lumen Technologies
Lumen Technologies, formerly CenturyLink, is a publicly traded (NYSE: LUMN) telecommunications company providing network connectivity, cloud access, security solutions, voice services, and managed IT primarily to enterprise, government, and wholesale customers via its extensive fiber optic network spanning ~340,000 route miles in the U.S. and ~500,000 globally.[1][4] Headquartered in Monroe, Louisiana, it was rebranded from CenturyLink in 2020 and is a member of the S&P 500 and Fortune 500 with no mentioned parent company.[2][4] The RespOrg code INF01 and outdated HQ in Arlington Heights, IL appear incorrect based on current sources.[2]
AI-generated summary (confidence: medium), last updated 2026-04-30. Verify against primary sources before quoting.
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