NumberResearchThousands-blocks in 484-373
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 484-373 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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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 484-373-0XXX | 0000–0999 | Reserved | VERIZON PENNSYLVANIA, INC. | 9208 | EASTON | PA |
| 2015-09-14 | 484-373-1XXX | 1000–1999 | Assigned | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | EASTON | PA |
| 2003-04-15 | 484-373-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EASTON | PA |
| 2005-06-14 | 484-373-3XXX | 3000–3999 | Assigned | CTSI, INC. - PA | 7513 | EASTON | PA |
| 2006-04-14 | 484-373-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | EASTON | PA |
| 2015-02-03 | 484-373-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA | 7434 | EASTON | PA |
| — | 484-373-6XXX | 6000–6999 | Reserved | VERIZON PENNSYLVANIA, INC. | 9208 | EASTON | PA |
| 2016-02-25 | 484-373-7XXX | 7000–7999 | Assigned | ONVOY, LLC - PA | 547E | EASTON | PA |
| 2010-05-05 | 484-373-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EASTON | PA |
| 2010-04-01 | 484-373-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | EASTON | 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.