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
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-12-16 | 513-798-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MORNINGSUN | OH |
| 2018-06-29 | 513-499-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAMILTON | OH |
| 2018-06-29 | 513-538-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2018-06-29 | 513-538-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2018-05-02 | 513-514-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2018-03-30 | 513-499-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAMILTON | OH |
| 2018-03-06 | 513-493-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2017-11-03 | 513-493-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2017-09-12 | 513-847-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BETHANY | OH |
| 2016-08-19 | 513-968-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LEBANON | OH |
| 2016-06-20 | 513-883-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAMILTON | OH |
| 2016-06-20 | 513-975-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2016-05-23 | 513-449-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CLERMONT | OH |
| 2016-04-26 | 513-975-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2016-04-26 | 513-975-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2016-04-06 | 513-466-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MASON | OH |
| 2016-04-06 | 513-883-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAMILTON | OH |
| 2016-03-03 | 513-906-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2016-03-03 | 513-997-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MIDDLETOWN | OH |
| 2015-12-14 | 513-832-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-12-14 | 513-954-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-10-20 | 513-973-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAMILTON | OH |
| 2015-10-20 | 513-997-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MIDDLETOWN | OH |
| 2015-10-07 | 513-449-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CLERMONT | OH |
| 2015-09-16 | 513-644-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BETHANY | OH |
| 2015-09-16 | 513-987-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LTL MIAMI | OH |
| 2015-09-01 | 513-914-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-09-01 | 513-918-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-09-01 | 513-918-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-09-01 | 513-918-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-09-01 | 513-918-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-07-16 | 513-996-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-07-16 | 513-996-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-07-16 | 513-996-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-07-16 | 513-996-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-07-16 | 513-996-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-06-09 | 513-857-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAMILTON | OH |
| 2015-06-09 | 513-880-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LTL MIAMI | OH |
| 2015-05-14 | 513-449-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CLERMONT | OH |
| 2015-04-28 | 513-818-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-04-28 | 513-818-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-04-24 | 513-486-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MASON | OH |
| 2015-03-19 | 513-857-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HAMILTON | OH |
| 2015-03-18 | 513-832-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-02-24 | 513-783-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MIDDLETOWN | OH |
| 2015-02-10 | 513-954-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-02-10 | 513-954-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2015-02-10 | 513-954-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2014-12-15 | 513-832-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | OH |
| 2014-12-15 | 513-832-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CINCINNATI | 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.