NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 350
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-01-12 | 350-235-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLEMENTS | CA |
| 2025-10-30 | 350-252-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TURLOCK | CA |
| 2025-09-15 | 350-955-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WTFR DNPR | CA |
| 2025-06-10 | 350-244-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JACKSON | CA |
| 2022-10-04 | 350-222-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HUGHSON | CA |
| 2022-10-04 | 350-333-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | NEWMAN | CA |
| 2022-10-04 | 350-444-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SNELLING | CA |
| 2022-10-04 | 350-666-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SANANDREAS | CA |
| 2022-10-04 | 350-777-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GALT | CA |
| 2022-10-04 | 350-999-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GUSTINE | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.