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 413
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-10-07 | 413-337-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CHARLEMONT | MA |
| 2025-10-07 | 413-625-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SHELBUNFLS | MA |
| 2024-01-29 | 413-646-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MILLERSFLS | MA |
| 2022-10-18 | 413-933-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MONROE BDG | MA |
| 2021-12-09 | 413-616-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | OTIS | MA |
| 2021-11-22 | 413-462-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SANDISFLD | MA |
| 2020-08-18 | 413-738-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HANCOCK | MA |
| 2020-06-12 | 413-380-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | RICHMOND | MA |
| 2020-02-20 | 413-655-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HINSDALE | MA |
| 2016-10-07 | 413-347-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PITTSFIELD | MA |
| 2015-07-15 | 413-344-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PITTSFIELD | MA |
| 2010-10-12 | 413-300-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | DALTON | MA |
| 2010-10-05 | 413-248-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SHEFFIELD | MA |
| 2010-10-05 | 413-394-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LEE | MA |
| 2010-10-05 | 413-398-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | NORTHADAMS | MA |
| 2010-10-05 | 413-458-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WILLIAMSTN | MA |
| 2010-10-05 | 413-645-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GREATBNGTN | MA |
| 2010-10-05 | 413-749-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ADAMS | MA |
| 2010-10-05 | 413-881-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LENOX | MA |
| 2010-10-04 | 413-344-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PITTSFIELD | MA |
| 2008-02-04 | 413-464-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PITTSFIELD | MA |
| 2008-02-04 | 413-464-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PITTSFIELD | MA |
| 2007-05-10 | 413-274-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HOUSATONIC | MA |
| 2007-05-10 | 413-298-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | STOCKBDG | MA |
| 2006-09-22 | 413-464-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | PITTSFIELD | MA |
| 2006-08-18 | 413-394-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LEE | MA |
| 2006-08-18 | 413-717-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GREATBNGTN | MA |
| 2006-08-18 | 413-776-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ADAMS | MA |
| 2006-08-14 | 413-346-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | NORTHADAMS | MA |
| 2006-08-14 | 413-551-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LENOX | MA |
| 2006-08-14 | 413-884-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WILLIAMSTN | 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.