NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026
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 424
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-05-31 | 424-403-3XXX | 3000–3999 | Assigned | BARR TELL USA, LLC | 026K | CMTN CMTN | CA |
| 2022-05-31 | 424-460-6XXX | 6000–6999 | Assigned | BARR TELL USA, LLC | 026K | CULVERCITY | CA |
| 2022-05-31 | 424-467-0XXX | 0000–0999 | Assigned | BARR TELL USA, LLC | 026K | W ANGELES | CA |
| 2022-05-31 | 424-599-7XXX | 7000–7999 | Assigned | BARR TELL USA, LLC | 026K | BEVERLYHLS | CA |
| 2022-05-27 | 424-471-1XXX | 1000–1999 | Assigned | BARR TELL USA, LLC | 026K | REDONDO | CA |
| 2022-05-27 | 424-475-5XXX | 5000–5999 | Assigned | BARR TELL USA, LLC | 026K | TORRANCE | CA |
| 2022-05-27 | 424-481-1XXX | 1000–1999 | Assigned | BARR TELL USA, LLC | 026K | HAWTHORNE | CA |
| 2022-05-27 | 424-655-4XXX | 4000–4999 | Assigned | BARR TELL USA, LLC | 026K | INGLEWOOD | CA |
| 2022-05-27 | 424-844-1XXX | 1000–1999 | Assigned | BARR TELL USA, LLC | 026K | SNMN SNMN | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.