NumberResearchThousands-blocks in 315-775
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 315-775 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 315 blocks
Most active assignees, all time — NPA 315
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 315-775-0XXX | 0000–0999 | Reserved | VERIZON NEW YORK, INC. | 9104 | WATERTOWN | NY |
| 2016-09-01 | 315-775-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | WATERTOWN | NY |
| 2007-10-26 | 315-775-2XXX | 2000–2999 | Assigned | RINGSQUARED TELECOM LLC | 8249 | WATERTOWN | NY |
| 2006-09-13 | 315-775-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WATERTOWN | NY |
| 2014-04-28 | 315-775-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | WATERTOWN | NY |
| 2013-12-17 | 315-775-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | WATERTOWN | NY |
| 2010-01-08 | 315-775-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | WATERTOWN | NY |
| 2009-11-20 | 315-775-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | WATERTOWN | NY |
| 2009-02-27 | 315-775-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | WATERTOWN | NY |
| 2016-11-09 | 315-775-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | WATERTOWN | NY |
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.