NumberResearchThousands-blocks in 715-787
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 715-787 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 715 blocks
Most active assignees, all time — NPA 715
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-05-02 | 715-787-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GRESHAM | WI |
| — | 715-787-1XXX | 1000–1999 | Available | GRESHAM | WI | ||
| 2022-02-14 | 715-787-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GRESHAM | WI |
| — | 715-787-3XXX | 3000–3999 | Reserved | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | GRESHAM | WI |
| — | 715-787-4XXX | 4000–4999 | Reserved | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | GRESHAM | WI |
| 2025-06-17 | 715-787-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GRESHAM | WI |
| 2009-10-12 | 715-787-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRESHAM | WI |
| 2014-10-23 | 715-787-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - WI | 5489 | GRESHAM | WI |
| 2021-05-26 | 715-787-8XXX | 8000–8999 | Assigned | ONVOY, LLC - WI | 225C | GRESHAM | WI |
| — | 715-787-9XXX | 9000–9999 | Reserved | FRONTIER COMMUNICATIONS OF WISCONSIN LLC | 0964 | GRESHAM | WI |
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.