NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 832
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-09-22 | 832-242-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2016-09-22 | 832-242-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2016-08-30 | 832-791-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPRING | TX |
| 2016-05-17 | 832-957-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WESTFIELD | TX |
| 2015-04-02 | 832-759-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RICHMNRNBG | TX |
| 2014-12-22 | 832-336-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MANVEL | TX |
| 2014-11-25 | 832-666-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BAMMEL | TX |
| 2014-11-03 | 832-940-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2014-11-03 | 832-940-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2014-11-03 | 832-940-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2014-10-01 | 832-823-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPRING | TX |
| 2014-09-17 | 832-968-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2014-09-17 | 832-968-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2014-08-22 | 832-761-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOMBALL | TX |
| 2014-08-06 | 832-674-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LANGHAMCRK | TX |
| 2014-07-24 | 832-974-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BARKER | TX |
| 2014-06-06 | 832-269-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2014-05-14 | 832-672-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HSTNSUBURB | TX |
| 2014-04-03 | 832-481-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FRIENDSWD | TX |
| 2014-04-03 | 832-965-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BAMMEL | TX |
| 2014-02-14 | 832-986-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2014-01-24 | 832-672-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HSTNSUBURB | TX |
| 2014-01-22 | 832-761-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOMBALL | TX |
| 2013-10-22 | 832-945-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RICHMNRNBG | TX |
| 2013-10-03 | 832-742-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2013-08-26 | 832-674-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LANGHAMCRK | TX |
| 2013-08-21 | 832-521-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PINEHURST | TX |
| 2013-05-15 | 832-761-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOMBALL | TX |
| 2013-05-14 | 832-664-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HSTNSUBURB | TX |
| 2013-04-04 | 832-945-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RICHMNRNBG | TX |
| 2013-04-02 | 832-653-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CYPRESS | TX |
| 2013-03-19 | 832-781-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HSTNSUBURB | TX |
| 2011-09-06 | 832-585-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPRING | TX |
| 2011-08-31 | 832-328-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HSTNSUBURB | TX |
| 2011-08-31 | 832-491-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2011-08-31 | 832-491-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2011-06-24 | 832-548-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2011-06-07 | 832-717-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOMBALL | TX |
| 2011-05-05 | 832-602-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BAMMEL | TX |
| 2011-04-20 | 832-688-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SATSUMA | TX |
| 2011-03-09 | 832-535-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RICHMNRNBG | TX |
| 2011-03-09 | 832-663-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPRING | TX |
| 2011-02-22 | 832-379-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HSTNSUBURB | TX |
| 2011-01-19 | 832-593-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LANGHAMCRK | TX |
| 2011-01-07 | 832-480-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLEVELAND | TX |
| 2011-01-07 | 832-793-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SPLENDORA | TX |
| 2010-09-01 | 832-516-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2010-09-01 | 832-516-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2010-09-01 | 832-516-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOUSTON | TX |
| 2010-08-04 | 832-534-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOMBALL | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.