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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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-07-28 | 857-396-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2022-07-28 | 857-396-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2022-07-28 | 857-397-7XXX | 7000–7999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-07-28 | 857-397-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-07-28 | 857-397-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-07-28 | 857-675-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-07-28 | 857-693-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-07-28 | 857-746-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2022-07-28 | 857-746-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2022-07-20 | 857-767-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BOSTON | MA |
| 2022-07-20 | 857-767-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-07-20 | 857-767-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-07-08 | 857-365-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-07-05 | 857-394-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | BELMONT | MA |
| 2022-06-29 | 857-365-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | BOSTON | MA |
| 2022-06-29 | 857-491-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | BOSTON | MA |
| 2022-06-24 | 857-788-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BOSTON | MA |
| 2022-06-24 | 857-788-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BOSTON | MA |
| 2022-06-24 | 857-788-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BOSTON | MA |
| 2022-06-24 | 857-788-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BOSTON | MA |
| 2022-06-24 | 857-788-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BOSTON | MA |
| 2022-05-24 | 857-394-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | BELMONT | MA |
| 2022-05-16 | 857-395-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-05-16 | 857-395-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-05-16 | 857-395-2XXX | 2000–2999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-05-16 | 857-693-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-05-16 | 857-693-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-05-16 | 857-693-8XXX | 8000–8999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ROXBURY | MA |
| 2022-05-16 | 857-746-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2022-05-16 | 857-746-1XXX | 1000–1999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BROOKLINE | MA |
| 2022-05-10 | 857-767-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-05-10 | 857-767-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-04-22 | 857-639-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | CAMBRIDGE | MA |
| 2022-04-22 | 857-639-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | CAMBRIDGE | MA |
| 2022-04-22 | 857-639-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MA | 892D | CAMBRIDGE | MA |
| 2022-04-22 | 857-737-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MA | 892D | WATERTOWN | MA |
| 2022-04-20 | 857-639-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CAMBRIDGE | MA |
| 2022-04-20 | 857-706-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CAMBRIDGE | MA |
| 2022-04-20 | 857-757-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CAMBRIDGE | MA |
| 2022-04-20 | 857-799-0XXX | 0000–0999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | CAMBRIDGE | MA |
| 2022-04-14 | 857-363-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | EVERETT | MA |
| 2022-04-07 | 857-373-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BELMONT | MA |
| 2022-04-07 | 857-491-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-04-07 | 857-491-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-04-07 | 857-491-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-04-07 | 857-491-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MA | 892D | BOSTON | MA |
| 2022-03-22 | 857-737-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WATERTOWN | MA |
| 2022-03-18 | 857-371-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | WATERTOWN | MA |
| 2022-03-14 | 857-663-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DORCHESTER | MA |
| 2022-03-14 | 857-703-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HYDE PARK | 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.