NumberResearchThousands-blocks in 856-568
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 856-568 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-04-07 | 856-568-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LAUREL SPG | NJ |
| 2017-03-03 | 856-568-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | LAUREL SPG | NJ |
| 2022-07-05 | 856-568-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | LAUREL SPG | NJ |
| — | 856-568-3XXX | 3000–3999 | Reserved | AT&T - LOCAL | 7421 | LAUREL SPG | NJ |
| 2014-09-15 | 856-568-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NJ | 7134 | LAUREL SPG | NJ |
| 2026-05-07 | 856-568-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | LAUREL SPG | NJ |
| 2017-08-22 | 856-568-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | LAUREL SPG | NJ |
| 2022-07-05 | 856-568-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | LAUREL SPG | NJ |
| 2020-05-01 | 856-568-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | LAUREL SPG | NJ |
| 2024-01-08 | 856-568-9XXX | 9000–9999 | Assigned | COMMIO, LLC | 939H | LAUREL SPG | 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.