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 513
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-01-09 | 513-380-7XXX | 7000–7999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | FELICITY | OH |
| 2023-02-16 | 513-798-1XXX | 1000–1999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | MORNINGSUN | OH |
| 2022-04-15 | 513-949-1XXX | 1000–1999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | WAYNESVL | OH |
| 2018-03-19 | 513-466-5XXX | 5000–5999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | MASON | OH |
| 2018-03-19 | 513-466-6XXX | 6000–6999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | MASON | OH |
| 2018-03-19 | 513-466-7XXX | 7000–7999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | MASON | OH |
| 2016-08-24 | 513-466-2XXX | 2000–2999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | MASON | OH |
| 2016-08-24 | 513-466-3XXX | 3000–3999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | MASON | OH |
| 2015-11-16 | 513-952-4XXX | 4000–4999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2015-11-16 | 513-952-5XXX | 5000–5999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2015-11-16 | 513-952-6XXX | 6000–6999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2015-02-17 | 513-909-0XXX | 0000–0999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2014-05-09 | 513-486-9XXX | 9000–9999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | MASON | OH |
| 2014-05-09 | 513-664-0XXX | 0000–0999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | OXFORD | OH |
| 2013-06-11 | 513-495-0XXX | 0000–0999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-1XXX | 1000–1999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-2XXX | 2000–2999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-3XXX | 3000–3999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-4XXX | 4000–4999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-5XXX | 5000–5999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-6XXX | 6000–6999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-7XXX | 7000–7999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-8XXX | 8000–8999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-06-11 | 513-495-9XXX | 9000–9999 | Assigned | CINCINNATI BELL | 9348 | CLERMONT | OH |
| 2013-05-23 | 513-402-3XXX | 3000–3999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | MONROE | OH |
| 2013-05-03 | 513-517-0XXX | 0000–0999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-1XXX | 1000–1999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-2XXX | 2000–2999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-3XXX | 3000–3999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-4XXX | 4000–4999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-5XXX | 5000–5999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-6XXX | 6000–6999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-7XXX | 7000–7999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-8XXX | 8000–8999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-05-03 | 513-517-9XXX | 9000–9999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-0XXX | 0000–0999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-1XXX | 1000–1999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-2XXX | 2000–2999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-3XXX | 3000–3999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-4XXX | 4000–4999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-5XXX | 5000–5999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-6XXX | 6000–6999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-7XXX | 7000–7999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-8XXX | 8000–8999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2013-03-12 | 513-215-9XXX | 9000–9999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2012-02-01 | 513-601-0XXX | 0000–0999 | Assigned | CINCINNATI BELL | 9348 | CINCINNATI | OH |
| 2011-02-14 | 513-644-0XXX | 0000–0999 | Assigned | CINCINNATI BELL | 9348 | BETHANY | OH |
| 2008-03-11 | 513-280-5XXX | 5000–5999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | OXFORD | OH |
| 2008-02-08 | 513-273-2XXX | 2000–2999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | OXFORD | OH |
| 2008-02-08 | 513-273-8XXX | 8000–8999 | Assigned | CINCINNATI BELL EXTENDED TERRITORIES LLC - OH | 309B | OXFORD | 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.