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 508
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-12-08 | 508-526-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | UXBRIDGE | MA |
| 2014-07-30 | 508-304-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2013-08-16 | 508-266-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WHITINSVL | MA |
| 2013-05-29 | 508-461-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WEBSTER | MA |
| 2013-01-02 | 508-329-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WESTBORO | MA |
| 2012-06-25 | 508-731-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | OXFORD | MA |
| 2012-05-01 | 508-859-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LEICESTER | MA |
| 2011-10-11 | 508-434-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CHARLTON | MA |
| 2011-07-25 | 508-581-4XXX | 4000–4999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MILLBURY | MA |
| 2010-01-21 | 508-779-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | UXBRIDGE | MA |
| 2009-11-16 | 508-762-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2008-06-16 | 508-461-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WEBSTER | MA |
| 2008-03-19 | 508-329-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WESTBORO | MA |
| 2008-02-28 | 508-373-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2007-10-17 | 508-796-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2007-08-08 | 508-926-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2007-04-24 | 508-459-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2006-12-21 | 508-372-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WHITINSVL | MA |
| 2006-11-13 | 508-459-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2006-08-08 | 508-459-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2006-05-26 | 508-461-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WEBSTER | MA |
| 2006-05-02 | 508-459-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2006-02-24 | 508-304-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2005-12-22 | 508-304-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2005-10-19 | 508-304-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2004-12-07 | 508-210-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HOLDEN | MA |
| 2004-12-07 | 508-281-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MARLBORO | MA |
| 2004-12-07 | 508-329-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WESTBORO | MA |
| 2004-12-07 | 508-466-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NORTHBORO | MA |
| 2004-12-07 | 508-603-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | UPTON | MA |
| 2004-12-07 | 508-882-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | OAKHAM | MA |
| 2004-12-07 | 508-909-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SOUTHBDG | MA |
| 2004-06-04 | 508-779-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | UXBRIDGE | MA |
| 2004-05-19 | 508-266-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WHITINSVL | MA |
| 2004-05-19 | 508-304-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WORCESTER | MA |
| 2004-05-19 | 508-407-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | AUBURN | MA |
| 2004-05-19 | 508-434-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | CHARLTON | MA |
| 2004-05-19 | 508-461-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WEBSTER | MA |
| 2004-05-19 | 508-476-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | E DOUGLAS | MA |
| 2004-05-19 | 508-637-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | NOBROOKFLD | MA |
| 2004-05-19 | 508-892-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | LEICESTER | MA |
| 2004-05-19 | 508-917-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MILLBURY | MA |
| 2004-05-12 | 508-731-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | OXFORD | MA |
| 2004-05-12 | 508-731-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | OXFORD | 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.