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 405
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-04-21 | 405-784-1XXX | 1000–1999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | ASHER | OK |
| 2019-04-16 | 405-289-2XXX | 2000–2999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | ST LOUIS | OK |
| 2017-07-07 | 405-704-9XXX | 9000–9999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | TECUMSEH | OK |
| 2017-07-06 | 405-927-9XXX | 9000–9999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | PRAGUE | OK |
| 2016-07-12 | 405-461-9XXX | 9000–9999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | ASHER | OK |
| 2015-06-19 | 405-477-9XXX | 9000–9999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | MEEKER | OK |
| 2015-06-19 | 405-955-9XXX | 9000–9999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | PURCELL | OK |
| 2015-06-19 | 405-963-9XXX | 9000–9999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | LINDSAY | OK |
| 2008-12-09 | 405-442-8XXX | 8000–8999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | PURCELL | OK |
| 2006-08-14 | 405-288-3XXX | 3000–3999 | Assigned | VALOR TELECOM TX.LP-OK DBA WINDSTREAM COMM SW | 1165 | WASHINGTON | OK |
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.