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 352
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-01-23 | 352-358-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HAWTHORNE | FL |
| 2012-01-04 | 352-403-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WEEKICHSPG | FL |
| 2011-09-20 | 352-354-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NEWBERRY | FL |
| 2011-09-20 | 352-388-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | YANKEETOWN | FL |
| 2011-09-20 | 352-469-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | OLD TOWN | FL |
| 2011-09-20 | 352-477-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CEDAR KEYS | FL |
| 2011-09-20 | 352-486-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BRONSON | FL |
| 2011-09-20 | 352-507-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CHIEFLAND | FL |
| 2011-09-20 | 352-578-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CROSS CITY | FL |
| 2011-09-20 | 352-658-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | TRENTON | FL |
| 2011-05-05 | 352-587-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BROOKSVL | FL |
| 2011-02-15 | 352-545-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MICANOPY | FL |
| 2010-12-14 | 352-792-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | GAINESVL | FL |
| 2009-12-22 | 352-623-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ARCHER | FL |
| 2009-03-02 | 352-478-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | KEYSTN HTS | FL |
| 2008-10-22 | 352-462-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DUNNELLON | FL |
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.