NumberResearchRecent thousands-block assignments
12 blocks assigned in May 2026 · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, May 2026 — NPA 856
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-05-21 | 856-349-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | GLOUCESTER | NJ |
| 2026-05-21 | 856-648-3XXX | 3000–3999 | Assigned | ONVOY, LLC - NJ | 637C | HADDONFLD | NJ |
| 2026-05-21 | 856-975-9XXX | 9000–9999 | Assigned | ONVOY, LLC - NJ | 637C | SWEDESBORO | NJ |
| 2026-05-11 | 856-670-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | WOODBURY | NJ |
| 2026-05-08 | 856-277-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BEAVER BRK | NJ |
| 2026-05-08 | 856-277-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BEAVER BRK | NJ |
| 2026-05-07 | 856-286-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | PITMAN | NJ |
| 2026-05-07 | 856-568-5XXX | 5000–5999 | Assigned | ONVOY, LLC - NJ | 637C | LAUREL SPG | NJ |
| 2026-05-07 | 856-594-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | BERLIN | NJ |
| 2026-05-07 | 856-664-1XXX | 1000–1999 | Assigned | ONVOY, LLC - NJ | 637C | GLASSBORO | NJ |
| 2026-05-07 | 856-833-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | COLLINGSWD | NJ |
| 2026-05-01 | 856-660-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | VINELAND | 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.