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MCI MCI Communications Services, Inc., operating as a subsidiary of Verizon Communications under the d/b/a Verizon Business Services, provides telecommunications services including toll-free offerings such as MCI One Number[1][2][3]. Originally… read more ↓
Transfer network
How toll free numbers move between MCI (MC) and other Resp Orgs, reconstructed from Somos registry snapshots. Larger nodes = more transfer volume; MCI is highlighted. Open the full interactive map →
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- Website: verizon.com Domain since 2000 (26y)
- Phone: (800) 444-3333 via web search: consumer.mci.com
- 👥 Shared address (3 resporgs)
At a glance
This RespOrg has no active inventory
Last seen with active numbers: 2026-05. 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
Show monthly numbers
| Month | Inventory | Acquired | Harvested | Lost | From spare | To spare |
|---|---|---|---|---|---|---|
| 2018-03 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2018-06 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2018-09 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2018-10 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2018-11 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2018-12 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-01 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-02 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-03 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-04 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-05 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-06 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-08 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-09 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-10 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-11 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2019-12 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-01 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-02 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-03 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-04 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-05 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-06 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-07 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-08 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-09 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-10 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-11 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2020-12 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2021-01 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2021-02 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2021-03 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2021-04 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2021-05 | 7 | 0 | 0 | 0 | 0 | 0 |
| 2022-05 | 5 | 0 | 0 | 2 | 0 | 0 |
| 2022-06 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2022-07 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2022-08 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2022-09 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2022-10 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2022-11 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2022-12 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2023-01 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2023-02 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2023-03 | 6 | 1 | 0 | 0 | 0 | 0 |
| 2023-04 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2023-05 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2023-06 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2023-07 | 5 | 0 | 0 | 1 | 0 | 0 |
| 2023-08 | 6 | 1 | 0 | 0 | 0 | 0 |
| 2023-09 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2023-10 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2023-11 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2023-12 | 5 | 0 | 0 | 1 | 0 | 0 |
| 2024-02 | 6 | 1 | 0 | 0 | 0 | 0 |
| 2024-03 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2024-04 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2024-05 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2024-06 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2024-07 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2024-08 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2024-09 | 6 | 0 | 0 | 0 | 0 | 0 |
| 2024-10 | 5 | 0 | 0 | 1 | 0 | 0 |
| 2024-11 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2024-12 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-01 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-02 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-03 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-04 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-05 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-06 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-07 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-08 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-09 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-10 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-11 | 5 | 0 | 0 | 0 | 0 | 0 |
| 2025-12 | 103 | 98 | 0 | 0 | 0 | 0 |
| 2026-01 | 3,103 | 3,000 | 0 | 0 | 0 | 0 |
| 2026-02 | 3,103 | 0 | 0 | 0 | 0 | 0 |
| 2026-03 | 3,103 | 0 | 0 | 0 | 0 | 0 |
| 2026-04 | 3,103 | 0 | 0 | 0 | 0 | 0 |
| 2026-05 | 3,103 | 0 | 0 | 0 | 0 | 0 |
| 2026-06 | 5 | 0 | 0 | 3,098 | 0 | 0 |
Flow patterns (42-month cumulative)
Inbound (numbers acquired)
| Direct transfer from another RespOrg | 3,101.0 |
| Harvested from disconnect pool | 0.0 |
| First assigned from spare pool | 0.0 |
| Reactivated own disconnects | 0.0 |
Outbound (numbers lost)
| Direct transfer to another RespOrg | 3,103.0 |
| Entered multi-month disconnect (aging) | 0.0 |
| Released directly to spare pool | 0.0 |
Summary
This is the Telco Verizon, not the Verizon Cellular.
About MCI
MCI Communications Services, Inc., operating as a subsidiary of Verizon Communications under the d/b/a Verizon Business Services, provides telecommunications services including toll-free offerings such as MCI One Number[1][2][3]. Originally founded as MCI in 1968 and acquired by Verizon in 2006, it is headquartered in Basking Ridge, NJ (with some references to Cary, NC), and operates as a private division of the public company Verizon[1][9]. No specific employee count or revenue figures for MCI as a standalone entity are available from the sources.
Affiliations: Subsidiary of Verizon Communications Inc.; d/b/a Verizon Business Services[1][2][3].
Toll free / RespOrg activity: MCI provides toll-free services via MCI One Number, as noted in North Carolina tariff filings[3]. No recent (past 36 months) toll-free or RespOrg-specific news found.
AI-generated summary (confidence: medium), last updated 2026-04-30. Verify against primary sources before quoting.
Contact-form message
with a customer of MCI (Verizon)