NumberResearchThousands-blocks in 908-521
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 908-521 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 908 blocks
Most active assignees, all time — NPA 908
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 908-521-0XXX | 0000–0999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | PHILLIPSBG | NJ |
| 2021-11-09 | 908-521-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PHILLIPSBG | NJ |
| 2021-11-09 | 908-521-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PHILLIPSBG | NJ |
| 2025-09-03 | 908-521-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | PHILLIPSBG | NJ |
| 2012-02-13 | 908-521-4XXX | 4000–4999 | Assigned | ONVOY, LLC - NJ | 637C | PHILLIPSBG | NJ |
| 2018-09-11 | 908-521-5XXX | 5000–5999 | Assigned | BLUEBIRD COMMUNICATIONS, LLC - NJ | 999H | PHILLIPSBG | NJ |
| 2020-01-10 | 908-521-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | PHILLIPSBG | NJ |
| — | 908-521-7XXX | 7000–7999 | Available | PHILLIPSBG | NJ | ||
| 2023-04-21 | 908-521-8XXX | 8000–8999 | Assigned | ONVOY, LLC - NJ | 637C | PHILLIPSBG | NJ |
| 2023-09-27 | 908-521-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ | 6391 | PHILLIPSBG | 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.