NumberResearchRecent thousands-block assignments
26 blocks assigned in September 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, September 2026 — NPA 346
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-09-17 | 346-458-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | BEACH CITY | TX |
| 2026-09-17 | 346-751-7XXX | 7000–7999 | Assigned | TELNYX LLC | 073H | ROSHARON | TX |
| 2026-09-17 | 346-912-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | ALVIN | TX |
| 2026-09-16 | 346-938-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BAMMEL | TX |
| 2026-09-16 | 346-981-1XXX | 1000–1999 | Assigned | 8X8, INC. | 193E | HOUSTON | TX |
| 2026-09-15 | 346-682-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | CROSBY | TX |
| 2026-09-11 | 346-947-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ARCOLA | TX |
| 2026-09-10 | 346-821-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | SPLENDORA | TX |
| 2026-09-10 | 346-821-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | SPLENDORA | TX |
| 2026-09-09 | 346-778-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | ARCOLA | TX |
| 2026-09-09 | 346-913-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | TX |
| 2026-09-09 | 346-936-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | CLEVELAND | TX |
| 2026-09-03 | 346-749-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | BAYTOWN | TX |
| 2026-09-03 | 346-912-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | ALVIN | TX |
| 2026-09-03 | 346-945-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | MANVEL | TX |
| 2026-09-03 | 346-945-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | MANVEL | TX |
| 2026-09-01 | 346-821-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | SPLENDORA | TX |
| 2026-09-01 | 346-843-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | RICHMNRNBG | TX |
| 2026-09-01 | 346-906-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2026-09-01 | 346-992-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2026-09-01 | 346-992-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2026-09-01 | 346-992-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2026-09-01 | 346-992-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2026-09-01 | 346-992-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2026-09-01 | 346-992-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2026-09-01 | 346-992-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
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.