NumberResearchThousands-blocks in 407-391
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 407-391 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 407 blocks
Most active assignees, all time — NPA 407
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 407-391-0XXX | 0000–0999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | SANFORD | FL |
| 2012-10-16 | 407-391-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - FL | 982E | SANFORD | FL |
| — | 407-391-2XXX | 2000–2999 | Reserved | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | SANFORD | FL |
| 2009-06-22 | 407-391-3XXX | 3000–3999 | Assigned | MCI WORLDCOM COMMUNICATIONS, INC. - FL | 7448 | SANFORD | FL |
| 2016-07-06 | 407-391-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | SANFORD | FL |
| 2013-03-13 | 407-391-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - FL | 982E | SANFORD | FL |
| 2013-03-13 | 407-391-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - FL | 982E | SANFORD | FL |
| 2008-06-09 | 407-391-7XXX | 7000–7999 | Assigned | ONVOY, LLC - FL | 937C | SANFORD | FL |
| 2024-12-06 | 407-391-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SANFORD | FL |
| 2024-12-06 | 407-391-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SANFORD | FL |
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.