NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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, all time — NPA 351
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-02-08 | 351-232-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | TYNGSBORO | MA |
| 2024-02-07 | 351-426-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | DANVERS | MA |
| 2024-02-07 | 351-426-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | DANVERS | MA |
| 2024-02-06 | 351-238-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | ORANGE | MA |
| 2024-02-06 | 351-251-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | GROTON | MA |
| 2024-02-06 | 351-350-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | IPSWICH | MA |
| 2024-02-06 | 351-352-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | GEORGETOWN | MA |
| 2024-02-06 | 351-550-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | CLINTON | MA |
| 2024-02-02 | 351-243-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | WESTFORD | MA |
| 2024-02-02 | 351-358-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | PEPPERELL | MA |
| 2024-01-31 | 351-223-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | BEVERLY | MA |
| 2024-01-31 | 351-223-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | BEVERLY | MA |
| 2024-01-31 | 351-242-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | FITCHBURG | MA |
| 2024-01-31 | 351-242-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | FITCHBURG | MA |
| 2024-01-31 | 351-377-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | PEABODY | MA |
| 2024-01-31 | 351-377-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MA | 892D | PEABODY | MA |
| 2024-01-31 | 351-600-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | PEABODY | MA |
| 2024-01-26 | 351-235-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | ACTON | MA |
| 2024-01-26 | 351-235-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | ACTON | MA |
| 2024-01-24 | 351-239-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | LOWELL | MA |
| 2024-01-05 | 351-240-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | LAWRENCE | MA |
| 2024-01-05 | 351-240-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | LAWRENCE | MA |
| 2024-01-05 | 351-240-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | LAWRENCE | MA |
| 2023-12-19 | 351-239-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | LOWELL | MA |
| 2023-10-05 | 351-224-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | BARRE | MA |
| 2023-10-05 | 351-224-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | BARRE | MA |
| 2023-10-05 | 351-226-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | WESTFORD | MA |
| 2023-10-05 | 351-226-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | WESTFORD | MA |
| 2023-10-05 | 351-226-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | WESTFORD | MA |
| 2023-10-05 | 351-229-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | AMESBURY | MA |
| 2023-10-05 | 351-229-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | AMESBURY | MA |
| 2023-10-05 | 351-232-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | TYNGSBORO | MA |
| 2023-10-05 | 351-232-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | TYNGSBORO | MA |
| 2023-10-05 | 351-233-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | ASHBURNHAM | MA |
| 2023-10-05 | 351-233-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | ASHBURNHAM | MA |
| 2023-10-04 | 351-230-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | LEOMINSTER | MA |
| 2023-10-04 | 351-231-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | GLOUCESTER | MA |
| 2023-10-04 | 351-231-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | GLOUCESTER | MA |
| 2023-10-04 | 351-231-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | GLOUCESTER | MA |
| 2023-10-04 | 351-231-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | GLOUCESTER | MA |
| 2023-10-04 | 351-231-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | GLOUCESTER | MA |
| 2023-10-04 | 351-231-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | GLOUCESTER | MA |
| 2023-10-04 | 351-236-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | NEWBURYPT | MA |
| 2023-10-04 | 351-236-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | NEWBURYPT | MA |
| 2023-10-04 | 351-236-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | NEWBURYPT | MA |
| 2023-10-04 | 351-236-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | NEWBURYPT | MA |
| 2023-10-04 | 351-236-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | NEWBURYPT | MA |
| 2023-10-04 | 351-236-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | NEWBURYPT | MA |
| 2023-08-23 | 351-241-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | HAMILTON | MA |
| 2023-08-22 | 351-214-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | ROCKPORT | MA |
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.