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 945
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-04-23 | 945-337-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
| 2023-03-29 | 945-292-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
| 2023-03-29 | 945-292-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
| 2023-03-27 | 945-425-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | LEWISVILLE | TX |
| 2023-03-22 | 945-292-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
| 2022-08-09 | 945-218-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
| 2022-08-09 | 945-218-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
| 2022-07-07 | 945-219-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
| 2022-07-07 | 945-219-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | DALLAS | TX |
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.