NumberResearchThousands-blocks in 315-291
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 315-291 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 |
|---|---|---|---|---|---|---|---|
| 2015-03-02 | 315-291-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SKANEATLES | NY |
| 2018-06-11 | 315-291-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SKANEATLES | NY |
| — | 315-291-2XXX | 2000–2999 | Reserved | VERIZON NEW YORK, INC. | 9104 | SKANEATLES | NY |
| — | 315-291-3XXX | 3000–3999 | Reserved | VERIZON NEW YORK, INC. | 9104 | SKANEATLES | NY |
| 2018-08-17 | 315-291-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SKANEATLES | NY |
| 2011-03-11 | 315-291-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY | 7133 | SKANEATLES | NY |
| 2012-04-24 | 315-291-6XXX | 6000–6999 | Assigned | ONVOY, LLC- NY | 384C | SKANEATLES | NY |
| 2010-07-02 | 315-291-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SKANEATLES | NY |
| 2019-08-09 | 315-291-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | SKANEATLES | NY |
| 2018-04-16 | 315-291-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | SKANEATLES | NY |
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.