NumberResearchThousands-blocks in 937-310
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 937-310 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 937-310-0XXX | 0000–0999 | Reserved | PAETEC ITEL, LLC | 829J | BELLBROOK | OH |
| 2006-10-18 | 937-310-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BELLBROOK | OH |
| 2007-02-07 | 937-310-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | BELLBROOK | OH |
| 2008-02-20 | 937-310-3XXX | 3000–3999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | BELLBROOK | OH |
| 2023-07-12 | 937-310-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BELLBROOK | OH |
| 2011-03-16 | 937-310-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | BELLBROOK | OH |
| 2009-10-05 | 937-310-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BELLBROOK | OH |
| 2005-03-15 | 937-310-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | BELLBROOK | OH |
| 2004-09-03 | 937-310-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7836 | BELLBROOK | OH |
| 2024-01-30 | 937-310-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BELLBROOK | OH |
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.