NumberResearchThousands-blocks in 434-939
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 434-939 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
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2019-10-04 | 434-939-0XXX | 0000–0999 | Assigned | ONVOY, LLC - VA | 138E | STANARDSVL | VA |
| 2022-06-21 | 434-939-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | STANARDSVL | VA |
| 2014-07-11 | 434-939-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA | 7238 | STANARDSVL | VA |
| — | 434-939-3XXX | 3000–3999 | Available | STANARDSVL | VA | ||
| 2021-02-04 | 434-939-4XXX | 4000–4999 | Assigned | ONVOY, LLC - VA | 138E | STANARDSVL | VA |
| 2021-02-04 | 434-939-5XXX | 5000–5999 | Assigned | ONVOY, LLC - VA | 138E | STANARDSVL | VA |
| 2013-09-09 | 434-939-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | STANARDSVL | VA |
| — | 434-939-7XXX | 7000–7999 | Reserved | UNITED STATES CELLULAR - VA | 6283 | STANARDSVL | VA |
| — | 434-939-8XXX | 8000–8999 | Reserved | UNITED STATES CELLULAR - VA | 6283 | STANARDSVL | VA |
| 2014-12-05 | 434-939-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | STANARDSVL | 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.