NumberResearchThousands-blocks in 434-584
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 434-584 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 434 blocks
Most active assignees, all time — NPA 434
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 434-584-0XXX | 0000–0999 | Reserved | BRIGHTSPEED OF VIRGINIA, LLC | 0254 | SOUTH HILL | VA |
| — | 434-584-1XXX | 1000–1999 | Reserved | BRIGHTSPEED OF VIRGINIA, LLC | 0254 | SOUTH HILL | VA |
| — | 434-584-2XXX | 2000–2999 | Reserved | BRIGHTSPEED OF VIRGINIA, LLC | 0254 | SOUTH HILL | VA |
| 2017-06-06 | 434-584-3XXX | 3000–3999 | Assigned | BRIGHTSPEED OF VIRGINIA, LLC | 0254 | SOUTH HILL | VA |
| 2017-06-06 | 434-584-4XXX | 4000–4999 | Assigned | BRIGHTSPEED OF VIRGINIA, LLC | 0254 | SOUTH HILL | VA |
| 2017-06-06 | 434-584-5XXX | 5000–5999 | Assigned | BRIGHTSPEED OF VIRGINIA, LLC | 0254 | SOUTH HILL | VA |
| — | 434-584-6XXX | 6000–6999 | Reserved | BRIGHTSPEED OF VIRGINIA, LLC | 0254 | SOUTH HILL | VA |
| 2005-01-26 | 434-584-7XXX | 7000–7999 | Assigned | CORETEL VIRGINIA, LLC - VA | 5832 | SOUTH HILL | VA |
| 2004-11-24 | 434-584-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | SOUTH HILL | VA |
| 2012-02-01 | 434-584-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | SOUTH HILL | VA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.