NumberResearchThousands-blocks in 304-500
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 304-500 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 |
|---|---|---|---|---|---|---|---|
| 2016-08-31 | 304-500-0XXX | 0000–0999 | Assigned | SHENTEL COMMUNICATIONS, LLC. - WV | 489F | BERKELYSPG | WV |
| — | 304-500-1XXX | 1000–1999 | Available | BERKELYSPG | WV | ||
| 2013-02-28 | 304-500-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | BERKELYSPG | WV |
| 2025-06-16 | 304-500-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BERKELYSPG | WV |
| — | 304-500-4XXX | 4000–4999 | Available | BERKELYSPG | WV | ||
| 2019-06-17 | 304-500-5XXX | 5000–5999 | Assigned | ONVOY, LLC - WV | 449F | BERKELYSPG | WV |
| 2016-02-22 | 304-500-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - WV | 077G | BERKELYSPG | WV |
| 2016-09-26 | 304-500-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BERKELYSPG | WV |
| 2019-06-17 | 304-500-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WV | 449F | BERKELYSPG | WV |
| 2009-09-09 | 304-500-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BERKELYSPG | 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.