NumberResearchThousands-blocks in 484-997
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 484-997 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 484 blocks
Most active assignees, all time — NPA 484
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-10-13 | 484-997-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | CENTER PT | PA |
| — | 484-997-1XXX | 1000–1999 | Available | CENTER PT | PA | ||
| — | 484-997-2XXX | 2000–2999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | CENTER PT | PA |
| 2007-02-02 | 484-997-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | CENTER PT | PA |
| — | 484-997-4XXX | 4000–4999 | Available | CENTER PT | PA | ||
| 2021-02-10 | 484-997-5XXX | 5000–5999 | Assigned | ONVOY, LLC - PA | 547E | CENTER PT | PA |
| 2005-03-31 | 484-997-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | CENTER PT | PA |
| 2007-02-02 | 484-997-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | CENTER PT | PA |
| 2010-01-28 | 484-997-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | CENTER PT | PA |
| — | 484-997-9XXX | 9000–9999 | Available | CENTER PT | PA |
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.