NumberResearchThousands-blocks in 856-396
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 856-396 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 856 blocks
Most active assignees, all time — NPA 856
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 856-396-0XXX | 0000–0999 | Reserved | VERIZON NEW JERSEY, INC. | 9206 | MARLTON | NJ |
| 2013-03-18 | 856-396-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MARLTON | NJ |
| — | 856-396-2XXX | 2000–2999 | Reserved | VERIZON NEW JERSEY, INC. | 9206 | MARLTON | NJ |
| — | 856-396-3XXX | 3000–3999 | Reserved | VERIZON NEW JERSEY, INC. | 9206 | MARLTON | NJ |
| 2004-10-21 | 856-396-4XXX | 4000–4999 | Assigned | VERIZON NEW JERSEY, INC. | 9206 | MARLTON | NJ |
| 2007-07-20 | 856-396-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - NJ | 325E | MARLTON | NJ |
| 2007-10-19 | 856-396-6XXX | 6000–6999 | Assigned | BLOCK LINE SYSTEMS, LLC - NJ | 835E | MARLTON | NJ |
| 2008-06-27 | 856-396-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - NJ | 325E | MARLTON | NJ |
| 2015-05-04 | 856-396-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | MARLTON | NJ |
| 2010-01-27 | 856-396-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | MARLTON | NJ |
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.