NumberResearchThousands-blocks in 856-334
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 856-334 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
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-08-06 | 856-334-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | MARLTON | NJ |
| 2008-05-07 | 856-334-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | MARLTON | NJ |
| 2003-01-15 | 856-334-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | MARLTON | NJ |
| 2009-11-20 | 856-334-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | MARLTON | NJ |
| 2007-08-07 | 856-334-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | MARLTON | NJ |
| 2006-08-15 | 856-334-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MARLTON | NJ |
| 2005-02-15 | 856-334-6XXX | 6000–6999 | Assigned | NETCARRIER TELECOM, INC. - NJ | 9003 | MARLTON | NJ |
| 2019-05-16 | 856-334-7XXX | 7000–7999 | Assigned | CORETEL NEW JERSEY, INC. - NJ | 482F | MARLTON | NJ |
| 2007-11-01 | 856-334-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | MARLTON | NJ |
| 2015-05-04 | 856-334-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - NJ | 118F | MARLTON | NJ |
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.