NumberResearchThousands-blocks in 904-335
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 904-335 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 904 blocks
Most active assignees, all time — NPA 904
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 904-335-0XXX | 0000–0999 | Reserved | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | YULEE | FL |
| 2006-10-26 | 904-335-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | YULEE | FL |
| — | 904-335-2XXX | 2000–2999 | Reserved | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | YULEE | FL |
| 2006-09-22 | 904-335-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | YULEE | FL |
| 2007-08-22 | 904-335-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM, INC. - FL | 382G | YULEE | FL |
| 2007-11-29 | 904-335-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | YULEE | FL |
| 2019-02-13 | 904-335-6XXX | 6000–6999 | Assigned | ONVOY, LLC - FL | 937C | YULEE | FL |
| — | 904-335-7XXX | 7000–7999 | Reserved | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | YULEE | FL |
| 2009-01-12 | 904-335-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - FL | 982E | YULEE | FL |
| 2019-02-13 | 904-335-9XXX | 9000–9999 | Assigned | ONVOY, LLC - FL | 937C | YULEE | FL |
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.