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 806
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-06-02 | 806-207-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LEFORS | TX |
| 2023-06-02 | 806-375-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ALLISON | TX |
| 2023-06-02 | 806-733-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GRUVER | TX |
| 2023-06-02 | 806-812-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MCLEAN | TX |
| 2023-06-02 | 806-816-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SHAMROCK | TX |
| 2015-10-21 | 806-217-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CANADIAN | TX |
| 2015-02-17 | 806-412-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LUBBOCK | TX |
| 2014-08-06 | 806-784-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LUBBOCK | TX |
| 2012-11-12 | 806-391-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HEREFORD | TX |
| 2012-11-12 | 806-419-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PAMPA | TX |
| 2012-11-12 | 806-464-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BORGER | TX |
| 2011-12-12 | 806-656-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CANYON | TX |
| 2011-12-12 | 806-878-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | STINNETT | TX |
| 2011-10-28 | 806-652-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LOCKNEY | TX |
| 2011-09-27 | 806-307-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SKELLYTOWN | TX |
| 2011-09-12 | 806-302-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HALECENTER | TX |
| 2011-04-15 | 806-429-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PLAINVIEW | TX |
| 2011-01-11 | 806-407-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LUBBOCK | TX |
| 2009-11-18 | 806-407-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LUBBOCK | TX |
| 2009-11-04 | 806-475-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FLOYDADA | TX |
| 2009-02-02 | 806-437-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | AMARILLO | TX |
| 2006-01-18 | 806-329-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SLATON | TX |
| 2005-04-06 | 806-317-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LUBBOCK | 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.