NumberResearchThousands-blocks in 856-302
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 856-302 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
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-05-07 | 856-302-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | BLACKWOOD | NJ |
| 2010-09-03 | 856-302-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | BLACKWOOD | NJ |
| 2019-04-01 | 856-302-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | BLACKWOOD | NJ |
| 2008-02-08 | 856-302-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - NJ | 325E | BLACKWOOD | NJ |
| 2008-05-13 | 856-302-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | BLACKWOOD | NJ |
| 2006-07-18 | 856-302-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | BLACKWOOD | NJ |
| 2007-08-01 | 856-302-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | BLACKWOOD | NJ |
| 2025-03-13 | 856-302-7XXX | 7000–7999 | Assigned | ONVOY, LLC - NJ | 637C | BLACKWOOD | NJ |
| 2022-03-25 | 856-302-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | BLACKWOOD | NJ |
| 2024-01-30 | 856-302-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | BLACKWOOD | 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.