NumberResearchThousands-blocks in 904-639
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 904-639 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
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-05-04 | 904-639-0XXX | 0000–0999 | Assigned | ONVOY, LLC - FL | 937C | ORANGEPARK | FL |
| 2007-05-08 | 904-639-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ORANGEPARK | FL |
| 2007-05-08 | 904-639-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ORANGEPARK | FL |
| 2010-11-04 | 904-639-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ORANGEPARK | FL |
| 2016-05-04 | 904-639-4XXX | 4000–4999 | Assigned | ONVOY, LLC - FL | 937C | ORANGEPARK | FL |
| 2006-01-17 | 904-639-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | ORANGEPARK | FL |
| 2006-01-17 | 904-639-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - FL | 4802 | ORANGEPARK | FL |
| 2010-11-04 | 904-639-7XXX | 7000–7999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ORANGEPARK | FL |
| 2010-11-04 | 904-639-8XXX | 8000–8999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ORANGEPARK | FL |
| 2018-10-10 | 904-639-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF FLORIDA, LLC - FL | 902E | ORANGEPARK | 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.