NumberResearchThousands-blocks in 434-381
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 434-381 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
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-11-06 | 434-381-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | AMHERST | VA |
| 2011-08-18 | 434-381-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | AMHERST | VA |
| 2012-02-16 | 434-381-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | AMHERST | VA |
| 2009-01-21 | 434-381-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AMHERST | VA |
| 2014-03-19 | 434-381-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | AMHERST | VA |
| — | 434-381-5XXX | 5000–5999 | Reserved | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | AMHERST | VA |
| — | 434-381-6XXX | 6000–6999 | Reserved | VERIZON SOUTH, INC. - VA (CONTEL) | 0233 | AMHERST | VA |
| 2021-08-30 | 434-381-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | AMHERST | VA |
| 2015-12-23 | 434-381-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | AMHERST | VA |
| 2011-03-04 | 434-381-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. OF VIRGINIA - VA | 367E | AMHERST | VA |
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.