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 386
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-08-31 | 386-507-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DELAND | FL |
| 2016-06-07 | 386-999-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DAYTONABCH | FL |
| 2016-05-16 | 386-410-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NWSMYRNBCH | FL |
| 2014-08-12 | 386-263-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BUNNELL | FL |
| 2014-05-27 | 386-281-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DAYTONABCH | FL |
| 2014-04-28 | 386-753-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DEBARY | FL |
| 2013-12-18 | 386-302-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PALM COAST | FL |
| 2011-09-08 | 386-256-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DAYTONABCH | FL |
| 2011-09-06 | 386-200-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PIERSON | FL |
| 2010-12-14 | 386-210-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | OAK HILL | FL |
| 2010-12-14 | 386-693-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FLAGLERBCH | FL |
| 2010-12-13 | 386-603-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | WELAKA | FL |
| 2009-12-22 | 386-384-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DELEON SPG | FL |
| 2009-12-22 | 386-463-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | POMONAPARK | FL |
| 2008-10-31 | 386-627-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PALM COAST | FL |
| 2008-10-30 | 386-263-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BUNNELL | FL |
| 2008-10-30 | 386-742-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DEBARY | FL |
| 2008-10-30 | 386-847-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | NWSMYRNBCH | FL |
| 2008-10-30 | 386-873-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DELAND | FL |
| 2008-10-22 | 386-256-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DAYTONABCH | FL |
| 2008-07-28 | 386-487-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LAKE CITY | FL |
| 2008-07-28 | 386-643-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | PALATKA | FL |
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.