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 |
|---|---|---|---|---|---|---|---|
| 2022-05-31 | 413-643-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GILBERTVL | MA |
| 2019-03-11 | 413-224-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ELONGMEDOW | MA |
| 2016-06-03 | 413-232-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | W STOCKBDG | MA |
| 2016-06-03 | 413-353-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HOUSATONIC | MA |
| 2016-06-03 | 413-496-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | PITTSFIELD | MA |
| 2016-06-03 | 413-600-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | STOCKBDG | MA |
| 2016-06-03 | 413-655-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HINSDALE | MA |
| 2015-10-19 | 413-279-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WILBRAHAM | MA |
| 2015-04-17 | 413-610-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LUDLOW | MA |
| 2013-08-21 | 413-331-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CHICOPEE | MA |
| 2012-06-26 | 413-203-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | EASTHAMPTN | MA |
| 2012-05-24 | 413-279-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WILBRAHAM | MA |
| 2011-10-11 | 413-437-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HOLYOKE | MA |
| 2011-05-26 | 413-224-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ELONGMEDOW | MA |
| 2011-05-26 | 413-331-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CHICOPEE | MA |
| 2010-01-05 | 413-213-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BELCHERTN | MA |
| 2009-09-17 | 413-610-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LUDLOW | MA |
| 2008-03-14 | 413-331-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CHICOPEE | MA |
| 2007-11-12 | 413-203-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | EASTHAMPTN | MA |
| 2006-11-16 | 413-315-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HOLYOKE | MA |
| 2006-08-08 | 413-331-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CHICOPEE | MA |
| 2006-05-01 | 413-338-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WARREN | MA |
| 2005-10-17 | 413-203-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | EASTHAMPTN | MA |
| 2005-10-17 | 413-213-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BELCHERTN | MA |
| 2005-10-17 | 413-224-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ELONGMEDOW | MA |
| 2005-10-17 | 413-245-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | BRIMFIELD | MA |
| 2005-10-17 | 413-271-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SPRINGFLD | MA |
| 2005-10-17 | 413-279-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WILBRAHAM | MA |
| 2005-10-17 | 413-315-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HOLYOKE | MA |
| 2005-10-17 | 413-324-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | PALMER | MA |
| 2005-10-17 | 413-387-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NORTHAMPTN | MA |
| 2005-10-17 | 413-461-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | AMHERST | MA |
| 2005-10-17 | 413-566-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HAMPDEN | MA |
| 2005-10-17 | 413-610-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LUDLOW | MA |
| 2005-10-12 | 413-331-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CHICOPEE | MA |
| 2005-09-21 | 413-842-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | DALTON | 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.