NumberResearchThousands-blocks in 724-520
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 724-520 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 724 blocks
Most active assignees, all time — NPA 724
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-10-12 | 724-520-0XXX | 0000–0999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | LATROBE | PA |
| — | 724-520-1XXX | 1000–1999 | Reserved | VERIZON PENNSYLVANIA, INC. | 9208 | LATROBE | PA |
| 2018-10-12 | 724-520-2XXX | 2000–2999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | LATROBE | PA |
| 2024-02-09 | 724-520-3XXX | 3000–3999 | Assigned | ONVOY, LLC - PA | 547E | LATROBE | PA |
| 2004-11-11 | 724-520-4XXX | 4000–4999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | LATROBE | PA |
| 2004-04-02 | 724-520-5XXX | 5000–5999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | LATROBE | PA |
| 2026-02-17 | 724-520-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LATROBE | PA |
| 2024-08-21 | 724-520-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LATROBE | PA |
| 2005-11-25 | 724-520-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - PA | 4007 | LATROBE | PA |
| 2025-09-04 | 724-520-9XXX | 9000–9999 | Assigned | ONVOY, LLC - PA | 547E | LATROBE | 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.