NumberResearchRecent thousands-block assignments
10 blocks assigned in February 2026 · from the daily NANPA thousands-block report, 09/19/2026
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, February 2026 — NPA 435
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-02-25 | 435-278-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | ENTERPRISE | UT |
| 2026-02-25 | 435-366-3XXX | 3000–3999 | Assigned | WIDE VOICE, LLC - UT | 659H | ST GEORGE | UT |
| 2026-02-25 | 435-366-4XXX | 4000–4999 | Assigned | WIDE VOICE, LLC - UT | 659H | ST GEORGE | UT |
| 2026-02-17 | 435-212-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HILDALE | UT |
| 2026-02-17 | 435-240-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WENDOVER | UT |
| 2026-02-17 | 435-282-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | TREMONTON | UT |
| 2026-02-17 | 435-401-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ROOSEVELT | UT |
| 2026-02-17 | 435-459-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MONTICELLO | UT |
| 2026-02-17 | 435-820-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | PRICE | UT |
| 2026-02-04 | 435-361-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOGAN | UT |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.