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
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 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 |
| 2023-09-29 | 351-243-9XXX | 9000–9999 | Assigned | AT&T - LOCAL | 7421 | WESTFORD | MA |
| 2023-09-26 | 351-550-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | CLINTON | MA |
| 2023-09-26 | 351-550-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | CLINTON | MA |
| 2023-09-26 | 351-550-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | CLINTON | MA |
| 2023-09-26 | 351-550-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CLINTON | MA |
| 2023-09-26 | 351-550-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CLINTON | MA |
| 2023-09-25 | 351-228-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | ANDOVER | MA |
| 2023-09-25 | 351-228-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | ANDOVER | MA |
| 2023-09-25 | 351-228-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | ANDOVER | MA |
| 2023-09-25 | 351-228-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | ANDOVER | MA |
| 2023-09-25 | 351-228-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | ANDOVER | MA |
| 2023-09-14 | 351-236-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | NEWBURYPT | MA |
| 2023-09-01 | 351-355-3XXX | 3000–3999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | AMESBURY | MA |
| 2023-08-23 | 351-230-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LEOMINSTER | MA |
| 2023-08-23 | 351-230-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LEOMINSTER | MA |
| 2023-08-23 | 351-230-6XXX | 6000–6999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LEOMINSTER | MA |
| 2023-08-23 | 351-237-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | TEMPLETON | 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 |
| 2023-08-22 | 351-388-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | HARVARD | MA |
| 2023-08-16 | 351-240-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | LAWRENCE | MA |
| 2023-08-15 | 351-234-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | HAVERHILL | MA |
| 2023-08-15 | 351-600-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | PEABODY | MA |
| 2023-07-19 | 351-237-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | TEMPLETON | MA |
| 2023-07-19 | 351-266-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | PRINCETON | MA |
| 2023-07-18 | 351-223-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | BEVERLY | MA |
| 2023-07-18 | 351-239-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | LOWELL | MA |
| 2023-07-18 | 351-239-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | LOWELL | MA |
| 2023-07-12 | 351-210-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | HUDSON | MA |
| 2023-07-12 | 351-345-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | HUDSON | MA |
| 2023-07-12 | 351-345-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | HUDSON | MA |
| 2023-07-12 | 351-345-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | HUDSON | 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.