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 567
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 |
|---|---|---|---|---|---|---|---|
| 2016-08-02 | 567-970-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOLEDO | OH |
| 2015-07-07 | 567-318-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOLEDO | OH |
| 2015-06-09 | 567-742-4XXX | 4000–4999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOLLAND | OH |
| 2014-10-20 | 567-312-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOLEDO | OH |
| 2014-06-04 | 567-316-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOLEDO | OH |
| 2013-07-05 | 567-315-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TOLEDO | OH |
| 2013-02-01 | 567-245-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FOSTORIA | OH |
| 2012-11-06 | 567-283-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SANDUSKY | OH |
| 2012-01-17 | 567-938-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TIFFIN | OH |
| 2011-08-08 | 567-246-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WHITEHOUSE | OH |
| 2011-03-01 | 567-296-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | UPSANDUSKY | OH |
| 2010-12-10 | 567-206-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LINDSEY | OH |
| 2010-12-10 | 567-281-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NEW RIEGEL | OH |
| 2009-12-08 | 567-325-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BLOOMINGVL | OH |
| 2009-10-05 | 567-342-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FREMONT | OH |
| 2008-07-30 | 567-525-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FINDLAY | OH |
| 2008-07-22 | 567-742-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HOLLAND | OH |
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.