NumberResearchRecent thousands-block assignments
2 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, last 30 days — NPA 857
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-06-27 | 857-354-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BOSTON | MA |
| 2024-05-17 | 857-351-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2024-05-17 | 857-351-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2024-05-16 | 857-339-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2024-05-16 | 857-339-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2024-05-16 | 857-506-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2024-05-13 | 857-428-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | EVERETT | MA |
| 2024-05-08 | 857-565-4XXX | 4000–4999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2024-05-08 | 857-565-5XXX | 5000–5999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2024-05-08 | 857-565-6XXX | 6000–6999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2024-04-22 | 857-467-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SOMERVILLE | MA |
| 2024-04-22 | 857-467-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SOMERVILLE | MA |
| 2024-04-16 | 857-550-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BELMONT | MA |
| 2024-04-10 | 857-279-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | NEWTON | MA |
| 2024-04-09 | 857-231-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEWTON | MA |
| 2024-02-27 | 857-231-4XXX | 4000–4999 | Assigned | TC SYSTEMS, INC. | 7135 | NEWTON | MA |
| 2024-02-15 | 857-279-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | NEWTON | MA |
| 2024-02-15 | 857-325-7XXX | 7000–7999 | Assigned | COMMIO, LLC | 939H | NEWTON | MA |
| 2024-02-09 | 857-339-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | ROXBURY | MA |
| 2024-02-09 | 857-339-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | ROXBURY | MA |
| 2024-02-08 | 857-416-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2024-02-08 | 857-416-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2024-02-08 | 857-466-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | HYDE PARK | MA |
| 2024-02-08 | 857-565-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | BROOKLINE | MA |
| 2024-02-07 | 857-550-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | BELMONT | MA |
| 2024-02-07 | 857-737-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | WATERTOWN | MA |
| 2024-02-06 | 857-257-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | SO BOSTON | MA |
| 2024-02-06 | 857-422-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | SO BOSTON | MA |
| 2024-02-06 | 857-475-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | CHELSEA | MA |
| 2024-02-06 | 857-475-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | CHELSEA | MA |
| 2024-02-06 | 857-497-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | CHARLESTN | MA |
| 2024-02-05 | 857-253-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | CAMBRIDGE | MA |
| 2024-02-05 | 857-253-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | CAMBRIDGE | MA |
| 2024-02-05 | 857-253-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | CAMBRIDGE | MA |
| 2024-02-05 | 857-416-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | BOSTON | MA |
| 2024-02-05 | 857-467-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | SOMERVILLE | MA |
| 2024-02-05 | 857-467-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | SOMERVILLE | MA |
| 2024-02-05 | 857-526-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | QUINCY | MA |
| 2024-02-05 | 857-565-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BROOKLINE | MA |
| 2024-02-05 | 857-565-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | BROOKLINE | MA |
| 2024-02-05 | 857-755-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | QUINCY | MA |
| 2024-01-31 | 857-428-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | EVERETT | MA |
| 2024-01-31 | 857-428-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | EVERETT | MA |
| 2024-01-30 | 857-605-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MA | 892D | BRIGHTON | MA |
| 2024-01-29 | 857-374-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | QUINCY | MA |
| 2024-01-29 | 857-374-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | QUINCY | MA |
| 2024-01-29 | 857-387-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | QUINCY | MA |
| 2024-01-29 | 857-387-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | QUINCY | MA |
| 2024-01-29 | 857-467-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | SOMERVILLE | MA |
| 2024-01-29 | 857-467-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | SOMERVILLE | 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.