NumberResearchThousands-blocks in 937-664
This prefix’s ten 1,000-number blocks and who holds each — 2 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 937-664 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 937 blocks
Most active assignees, all time — NPA 937
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-07-09 | 937-664-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SABINA | OH |
| 2021-05-11 | 937-664-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SABINA | OH |
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.