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 315
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-02-20 | 315-881-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MORAVIA | NY |
| 2019-06-18 | 315-367-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ONEIDA | NY |
| 2019-01-30 | 315-933-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SEMPRONIUS | NY |
| 2019-01-18 | 315-883-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2018-02-02 | 315-937-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2018-02-02 | 315-960-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2017-10-03 | 315-991-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2017-10-03 | 315-991-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2017-08-29 | 315-514-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MASSENA | NY |
| 2017-06-30 | 315-978-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CENTRAL SQ | NY |
| 2017-06-20 | 315-937-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2017-06-20 | 315-937-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2017-03-14 | 315-916-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | AUBURN | NY |
| 2016-11-09 | 315-927-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | UTICA | NY |
| 2016-11-09 | 315-966-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MACEDON | NY |
| 2016-10-10 | 315-371-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROME | NY |
| 2016-07-01 | 315-714-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | CANTON | NY |
| 2016-05-16 | 315-602-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | OSWEGO | NY |
| 2016-03-30 | 315-913-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2016-03-30 | 315-913-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2016-03-18 | 315-830-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | NEWARK | NY |
| 2016-01-22 | 315-864-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | UTICA | NY |
| 2016-01-12 | 315-641-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LIVERPOOL | NY |
| 2015-11-16 | 315-887-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | FULTON | NY |
| 2015-10-23 | 315-965-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WATERTOWN | NY |
| 2015-08-31 | 315-928-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2015-08-31 | 315-991-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2015-07-22 | 315-864-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | UTICA | NY |
| 2015-07-22 | 315-870-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2015-04-02 | 315-795-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | ROME | NY |
| 2015-03-23 | 315-928-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2015-03-23 | 315-928-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2015-03-09 | 315-370-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | AUBURN | NY |
| 2015-03-09 | 315-602-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | OSWEGO | NY |
| 2015-03-09 | 315-922-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | UTICA | NY |
| 2015-02-26 | 315-802-2XXX | 2000–2999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2014-11-17 | 315-802-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2014-10-14 | 315-870-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2014-06-25 | 315-883-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2014-04-09 | 315-802-6XXX | 6000–6999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2014-04-09 | 315-802-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2012-08-15 | 315-826-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | POLAND | NY |
| 2012-08-15 | 315-845-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | NEWPORT | NY |
| 2012-08-15 | 315-891-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MIDDLEVL | NY |
| 2012-03-19 | 315-964-8XXX | 8000–8999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WILLIAMSTN | NY |
| 2011-07-01 | 315-843-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | KNOXBORO | NY |
| 2011-04-01 | 315-760-3XXX | 3000–3999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
| 2011-03-30 | 315-316-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | UTICA | NY |
| 2011-01-13 | 315-221-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | WATERTOWN | NY |
| 2011-01-12 | 315-314-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SYRACUSE | NY |
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.