NumberResearchRecent thousands-block assignments
33 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, last 30 days — NPA 346
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-11-16 | 346-497-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2021-11-16 | 346-524-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2021-11-16 | 346-524-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2021-11-16 | 346-524-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2021-11-16 | 346-524-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2021-11-16 | 346-524-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2021-11-16 | 346-524-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2021-11-16 | 346-524-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2021-11-16 | 346-524-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2021-11-16 | 346-902-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DICKINSON | TX |
| 2021-11-10 | 346-486-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LIVERPOOL | TX |
| 2021-11-10 | 346-866-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VLY LODGE | TX |
| 2021-11-10 | 346-866-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VLY LODGE | TX |
| 2021-11-10 | 346-910-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MONTBLVIEU | TX |
| 2021-11-10 | 346-910-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MONTBLVIEU | TX |
| 2021-11-04 | 346-522-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUMBLE | TX |
| 2021-11-04 | 346-522-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUMBLE | TX |
| 2021-11-04 | 346-524-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | HSTNSUBURB | TX |
| 2021-11-04 | 346-524-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | HSTNSUBURB | TX |
| 2021-11-02 | 346-521-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2021-11-02 | 346-521-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2021-11-02 | 346-521-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2021-11-02 | 346-523-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | KEMAH | TX |
| 2021-11-02 | 346-523-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | KEMAH | TX |
| 2021-11-02 | 346-523-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | KEMAH | TX |
| 2021-11-02 | 346-523-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | KEMAH | TX |
| 2021-11-01 | 346-520-1XXX | 1000–1999 | Assigned | CALLWORKS CORPORATION | 475J | HOUSTON | TX |
| 2021-11-01 | 346-755-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2021-10-29 | 346-458-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BEACH CITY | TX |
| 2021-10-29 | 346-458-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BEACH CITY | TX |
| 2021-10-29 | 346-480-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CROSBY | TX |
| 2021-10-29 | 346-480-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CROSBY | TX |
| 2021-10-29 | 346-487-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SEABROOK | TX |
| 2021-10-29 | 346-487-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SEABROOK | TX |
| 2021-10-29 | 346-489-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LA PORTE | TX |
| 2021-10-29 | 346-489-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LA PORTE | TX |
| 2021-10-29 | 346-519-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CHANNELVW | TX |
| 2021-10-29 | 346-519-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHANNELVW | TX |
| 2021-10-29 | 346-655-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ROSHARON | TX |
| 2021-10-29 | 346-688-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MANVEL | TX |
| 2021-10-29 | 346-688-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MANVEL | TX |
| 2021-10-29 | 346-746-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SMITHERSLK | TX |
| 2021-10-29 | 346-966-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTER | TX |
| 2021-10-28 | 346-447-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CLEVELAND | TX |
| 2021-10-28 | 346-458-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | BEACH CITY | TX |
| 2021-10-28 | 346-466-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | HIGHLANDS | TX |
| 2021-10-28 | 346-512-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CHANNELVW | TX |
| 2021-10-28 | 346-518-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | PINEHURST | TX |
| 2021-10-28 | 346-518-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | PINEHURST | TX |
| 2021-10-28 | 346-522-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HUMBLE | TX |
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.