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 380
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-06-12 | 380-276-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2024-01-17 | 380-267-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2022-10-03 | 380-243-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2022-10-03 | 380-243-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2022-10-03 | 380-243-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2022-10-03 | 380-243-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2022-10-03 | 380-243-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2021-05-26 | 380-218-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2021-03-31 | 380-900-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2021-01-20 | 380-218-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2020-08-12 | 380-215-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2020-02-19 | 380-206-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | DUBLIN | OH |
| 2019-11-29 | 380-203-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2019-11-19 | 380-203-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2019-10-04 | 380-201-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2019-07-09 | 380-201-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2019-02-27 | 380-235-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2018-12-17 | 380-235-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | OH |
| 2018-11-09 | 380-222-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - OH | 4863 | COLUMBUS | 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.