NumberResearchThousands-blocks in 304-803
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 304-803 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 304-803-0XXX | 0000–0999 | Reserved | GATEWAY TELECOM LLC DBA STRATUSWAVE COMM LLC WV | 2704 | GASSAWAY | WV |
| — | 304-803-1XXX | 1000–1999 | Reserved | GATEWAY TELECOM LLC DBA STRATUSWAVE COMM LLC WV | 2704 | GASSAWAY | WV |
| 2018-08-10 | 304-803-2XXX | 2000–2999 | Assigned | TELNYX LLC | 073H | GASSAWAY | WV |
| 2018-12-21 | 304-803-3XXX | 3000–3999 | Assigned | ONVOY, LLC - WV | 449F | GASSAWAY | WV |
| 2017-02-22 | 304-803-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GASSAWAY | WV |
| — | 304-803-5XXX | 5000–5999 | Reserved | GATEWAY TELECOM LLC DBA STRATUSWAVE COMM LLC WV | 2704 | GASSAWAY | WV |
| 2018-09-14 | 304-803-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - WV | 077G | GASSAWAY | WV |
| 2020-04-02 | 304-803-7XXX | 7000–7999 | Assigned | ONVOY, LLC - WV | 449F | GASSAWAY | WV |
| 2013-07-30 | 304-803-8XXX | 8000–8999 | Assigned | CORETEL WEST VIRGINIA, INC. - WV | 5833 | GASSAWAY | WV |
| — | 304-803-9XXX | 9000–9999 | Reserved | GATEWAY TELECOM LLC DBA STRATUSWAVE COMM LLC WV | 2704 | GASSAWAY | 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.