NumberResearchRecent thousands-block assignments
1 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 617
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 |
|---|---|---|---|---|---|---|---|
| 2026-09-02 | 617-609-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | MILTON | MA |
| 2026-08-20 | 617-397-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | CAMBRIDGE | MA |
| 2026-08-20 | 617-609-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MILTON | MA |
| 2026-08-20 | 617-806-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | CAMBRIDGE | MA |
| 2026-08-13 | 617-597-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | NEWTON | MA |
| 2026-07-09 | 617-915-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | MILTON | MA |
| 2026-06-17 | 617-376-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | QUINCY | MA |
| 2026-06-12 | 617-203-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | EVERETT | MA |
| 2026-05-21 | 617-881-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | NEWTON | MA |
| 2026-04-09 | 617-239-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | BOSTON | MA |
| 2026-04-09 | 617-717-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | BOSTON | MA |
| 2026-04-09 | 617-848-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | BOSTON | MA |
| 2026-02-12 | 617-671-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | BOSTON | MA |
| 2026-02-12 | 617-848-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | BOSTON | MA |
| 2026-02-12 | 617-885-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | BOSTON | MA |
| 2025-10-29 | 617-857-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | BROOKLINE | MA |
| 2025-10-29 | 617-857-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | BROOKLINE | MA |
| 2025-10-29 | 617-857-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | BROOKLINE | MA |
| 2025-09-23 | 617-741-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SOMERVILLE | MA |
| 2025-09-10 | 617-690-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MILTON | MA |
| 2025-08-05 | 617-272-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HYDE PARK | MA |
| 2025-04-15 | 617-396-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BROOKLINE | MA |
| 2025-03-18 | 617-617-0XXX | 0000–0999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-1XXX | 1000–1999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-2XXX | 2000–2999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-3XXX | 3000–3999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-4XXX | 4000–4999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-5XXX | 5000–5999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-6XXX | 6000–6999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-7XXX | 7000–7999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-8XXX | 8000–8999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-18 | 617-617-9XXX | 9000–9999 | Assigned | MASS MOBILE LLC | 125L | BOSTON | MA |
| 2025-03-11 | 617-843-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EVERETT | MA |
| 2025-02-07 | 617-781-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DORCHESTER | MA |
| 2024-12-18 | 617-503-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | CAMBRIDGE | MA |
| 2024-11-11 | 617-881-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NEWTON | MA |
| 2024-11-08 | 617-214-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JAMAICA PL | MA |
| 2024-11-08 | 617-214-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JAMAICA PL | MA |
| 2024-11-08 | 617-214-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JAMAICA PL | MA |
| 2024-11-08 | 617-360-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HYDE PARK | MA |
| 2024-11-08 | 617-460-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CAMBRIDGE | MA |
| 2024-11-08 | 617-609-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MILTON | MA |
| 2024-11-08 | 617-609-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MILTON | MA |
| 2024-11-08 | 617-609-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MILTON | MA |
| 2024-11-08 | 617-622-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SO BOSTON | MA |
| 2024-11-08 | 617-622-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SO BOSTON | MA |
| 2024-11-08 | 617-622-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SO BOSTON | MA |
| 2024-11-08 | 617-683-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BOSTON | MA |
| 2024-11-08 | 617-683-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BOSTON | MA |
| 2024-11-08 | 617-693-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CAMBRIDGE | 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.