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 813
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2009-10-29 | 813-423-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-10-29 | 813-423-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-10-29 | 813-436-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-03-11 | 813-260-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2009-03-11 | 813-260-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2009-03-11 | 813-260-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2009-03-11 | 813-649-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2009-03-11 | 813-658-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2009-03-11 | 813-658-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2009-02-26 | 813-403-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAWST | FL |
| 2009-02-26 | 813-408-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAWST | FL |
| 2009-02-26 | 813-491-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAWST | FL |
| 2009-02-20 | 813-423-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-02-20 | 813-423-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-02-20 | 813-423-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-02-20 | 813-423-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-02-20 | 813-423-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-02-20 | 813-423-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2009-02-20 | 813-474-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2009-02-20 | 813-474-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2009-02-20 | 813-474-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2009-02-20 | 813-474-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2009-02-20 | 813-474-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2009-02-20 | 813-474-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2009-02-10 | 813-667-0XXX | 0000–0999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2009-02-10 | 813-667-1XXX | 1000–1999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2009-02-10 | 813-667-2XXX | 2000–2999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2009-02-10 | 813-667-3XXX | 3000–3999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2009-02-10 | 813-667-4XXX | 4000–4999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2009-02-10 | 813-667-5XXX | 5000–5999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2009-02-10 | 813-667-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2009-02-10 | 813-667-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2008-08-25 | 813-379-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2008-08-25 | 813-379-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2008-08-25 | 813-379-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2008-08-25 | 813-381-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2008-08-25 | 813-381-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2008-08-25 | 813-402-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPACEN | FL |
| 2008-08-25 | 813-406-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2008-08-25 | 813-406-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2008-08-25 | 813-406-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPANTH | FL |
| 2008-08-25 | 813-408-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAWST | FL |
| 2008-08-25 | 813-408-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAWST | FL |
| 2008-08-25 | 813-408-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAWST | FL |
| 2008-08-25 | 813-481-6XXX | 6000–6999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2008-08-25 | 813-481-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPAEST | FL |
| 2008-08-25 | 813-489-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2008-08-25 | 813-938-7XXX | 7000–7999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2008-08-25 | 813-938-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | TAMPASTH | FL |
| 2008-04-22 | 813-479-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - FL | 594D | ZEPHYRHILS | 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.