NumberResearchThousands-blocks in 234-380
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 234-380 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 234 blocks
Most active assignees, all time — NPA 234
New assignments by month
Sep 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2009-09-24 | 234-380-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | HUDSON | OH |
| 2006-11-13 | 234-380-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HUDSON | OH |
| 2010-09-03 | 234-380-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HUDSON | OH |
| 2004-04-15 | 234-380-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HUDSON | OH |
| 2005-12-16 | 234-380-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | HUDSON | OH |
| 2009-08-18 | 234-380-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HUDSON | OH |
| 2008-12-04 | 234-380-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - OH | 001F | HUDSON | OH |
| 2004-04-15 | 234-380-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | HUDSON | OH |
| 2005-10-21 | 234-380-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | HUDSON | OH |
| — | 234-380-9XXX | 9000–9999 | Reserved | T-MOBILE USA, INC. | 6529 | HUDSON | OH |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.