NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 304
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 |
|---|---|---|---|---|---|---|---|
| 2009-07-28 | 304-275-9XXX | 9000–9999 | Assigned | FIBERNET, LLC - WV | 4095 | ELIZABETH | WV |
| 2008-10-13 | 304-586-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | WINFIELD | WV |
| 2008-05-16 | 304-970-6XXX | 6000–6999 | Assigned | FIBERNET, LLC - WV | 4095 | KIMBALL | WV |
| 2008-03-20 | 304-951-6XXX | 6000–6999 | Assigned | FIBERNET, LLC - WV | 4095 | CHRLSTNZN1 | WV |
| 2007-12-05 | 304-205-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | CHRLSTNZN1 | WV |
| 2007-10-15 | 304-294-1XXX | 1000–1999 | Assigned | FIBERNET, LLC - WV | 4095 | MULLENS | WV |
| 2007-10-15 | 304-732-2XXX | 2000–2999 | Assigned | FIBERNET, LLC - WV | 4095 | PINEVILLE | WV |
| 2007-05-09 | 304-737-5XXX | 5000–5999 | Assigned | FIBERNET, LLC - WV | 4095 | WELLSBURG | WV |
| 2007-05-09 | 304-777-1XXX | 1000–1999 | Assigned | FIBERNET, LLC - WV | 4095 | CHEAT LAKE | WV |
| 2007-02-14 | 304-941-1XXX | 1000–1999 | Assigned | FIBERNET, LLC - WV | 4095 | CHRLSTNZN1 | WV |
| 2006-09-07 | 304-760-6XXX | 6000–6999 | Assigned | FIBERNET, LLC - WV | 4095 | SCOTTDEPOT | WV |
| 2006-04-28 | 304-205-6XXX | 6000–6999 | Assigned | FIBERNET, LLC - WV | 4095 | CHRLSTNZN1 | WV |
| 2006-03-29 | 304-265-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | GRAFTON | WV |
| 2006-03-29 | 304-364-6XXX | 6000–6999 | Assigned | FIBERNET, LLC - WV | 4095 | GASSAWAY | WV |
| 2006-03-29 | 304-536-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | WHSLPHRSPG | WV |
| 2005-10-31 | 304-380-0XXX | 0000–0999 | Assigned | FIBERNET, LLC - WV | 4095 | CHRLSTNZN1 | WV |
| 2005-07-26 | 304-981-0XXX | 0000–0999 | Assigned | FIBERNET, LLC - WV | 4095 | MONTGOMERY | WV |
| 2005-07-26 | 304-981-9XXX | 9000–9999 | Assigned | FIBERNET, LLC - WV | 4095 | MONTGOMERY | WV |
| 2005-04-20 | 304-462-3XXX | 3000–3999 | Assigned | FIBERNET, LLC - WV | 4095 | GLENVILLE | WV |
| 2005-04-20 | 304-489-0XXX | 0000–0999 | Assigned | FIBERNET, LLC - WV | 4095 | MINERLWLLS | WV |
| 2005-04-20 | 304-548-2XXX | 2000–2999 | Assigned | FIBERNET, LLC - WV | 4095 | CLENDENIN | WV |
| 2005-04-20 | 304-592-6XXX | 6000–6999 | Assigned | FIBERNET, LLC - WV | 4095 | SHINNSTON | WV |
| 2005-04-20 | 304-861-2XXX | 2000–2999 | Assigned | FIBERNET, LLC - WV | 4095 | PRKRSBGZN3 | WV |
| 2005-04-15 | 304-981-6XXX | 6000–6999 | Assigned | FIBERNET, LLC - WV | 4095 | MONTGOMERY | WV |
| 2005-03-25 | 304-513-0XXX | 0000–0999 | Assigned | FIBERNET, LLC - WV | 4095 | CHRLSTNZN4 | WV |
| 2005-02-25 | 304-307-6XXX | 6000–6999 | Assigned | FIBERNET, LLC - WV | 4095 | MADISON | WV |
| 2004-10-07 | 304-397-4XXX | 4000–4999 | Assigned | FIBERNET, LLC - WV | 4095 | HURRICANE | WV |
| 2004-09-28 | 304-935-1XXX | 1000–1999 | Assigned | FIBERNET, LLC - WV | 4095 | CHRLSTNZN3 | WV |
| 2004-07-22 | 304-221-2XXX | 2000–2999 | Assigned | FIBERNET, LLC - WV | 4095 | WHELNGZON5 | WV |
| 2004-04-29 | 304-773-1XXX | 1000–1999 | Assigned | FIBERNET, LLC - WV | 4095 | MASON | WV |
| 2004-02-11 | 304-329-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | KINGWOOD | WV |
| 2004-02-11 | 304-466-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | HINTON | WV |
| 2004-02-11 | 304-674-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | PTPLEASANT | WV |
| 2004-02-11 | 304-854-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | WHITESVL | WV |
| 2004-02-11 | 304-927-8XXX | 8000–8999 | Assigned | FIBERNET, LLC - WV | 4095 | SPENCER | WV |
| 2003-09-10 | 304-390-0XXX | 0000–0999 | Assigned | FIBERNET, LLC - WV | 4095 | MILTON | WV |
| 2003-08-12 | 304-373-1XXX | 1000–1999 | Assigned | FIBERNET, LLC - WV | 4095 | RIPLEY | WV |
| 2003-08-12 | 304-465-2XXX | 2000–2999 | Assigned | FIBERNET, LLC - WV | 4095 | OAK HILL | WV |
| 2003-08-12 | 304-517-1XXX | 1000–1999 | Assigned | FIBERNET, LLC - WV | 4095 | WESTON | WV |
| 2003-08-12 | 304-848-2XXX | 2000–2999 | Assigned | FIBERNET, LLC - WV | 4095 | BRIDGEPORT | WV |
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.