NumberResearchThousands-blocks in 304-709
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 304-709 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 304 blocks
Most active assignees, all time — NPA 304
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-06-21 | 304-709-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - WV | 6284 | CLARKSBURG | WV |
| 2007-02-20 | 304-709-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - WV | 6284 | CLARKSBURG | WV |
| 2007-04-30 | 304-709-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - WV | 6284 | CLARKSBURG | WV |
| 2007-10-12 | 304-709-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - WV | 6284 | CLARKSBURG | WV |
| 2011-05-18 | 304-709-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CLARKSBURG | WV |
| 2011-07-07 | 304-709-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - WV | 080F | CLARKSBURG | WV |
| 2011-07-07 | 304-709-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - WV | 080F | CLARKSBURG | WV |
| 2005-05-13 | 304-709-7XXX | 7000–7999 | Assigned | CITYNET WEST VIRGINIA, LLC - WV | 545B | CLARKSBURG | WV |
| 2011-11-15 | 304-709-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | CLARKSBURG | WV |
| 2011-11-15 | 304-709-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CLARKSBURG | WV |
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.