NumberResearchThousands-blocks in 757-656
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 757-656 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 757 blocks
Most active assignees, all time — NPA 757
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-05-12 | 757-656-0XXX | 0000–0999 | Assigned | ONVOY, LLC - VA | 138E | BELLEHAVEN | VA |
| 2014-10-08 | 757-656-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BELLEHAVEN | VA |
| 2016-07-25 | 757-656-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BELLEHAVEN | VA |
| 2007-09-05 | 757-656-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | BELLEHAVEN | VA |
| 2004-04-27 | 757-656-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | BELLEHAVEN | VA |
| 2011-08-18 | 757-656-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BELLEHAVEN | VA |
| 2013-11-01 | 757-656-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BELLEHAVEN | VA |
| 2013-08-21 | 757-656-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - VA | 8825 | BELLEHAVEN | VA |
| 2016-11-22 | 757-656-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | BELLEHAVEN | VA |
| 2008-11-10 | 757-656-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - VA | 079F | BELLEHAVEN | VA |
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.