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
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Jan 2026
Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-08-23 | 346-580-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2022-08-23 | 346-580-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2022-08-23 | 346-580-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2022-08-23 | 346-580-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2022-08-23 | 346-580-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2022-08-23 | 346-580-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2022-08-19 | 346-528-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | MANVEL | TX |
| 2022-08-19 | 346-581-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2022-08-19 | 346-581-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2022-08-19 | 346-581-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2022-08-19 | 346-581-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2022-08-17 | 346-580-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CYPRESS | TX |
| 2022-08-16 | 346-385-8XXX | 8000–8999 | Assigned | VONAGE AMERICA LLC | 197D | FRIENDSWD | TX |
| 2022-08-16 | 346-573-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CYPRESS | TX |
| 2022-08-16 | 346-573-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CYPRESS | TX |
| 2022-08-12 | 346-579-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-12 | 346-579-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-12 | 346-579-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-12 | 346-579-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-11 | 346-902-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-11 | 346-902-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-11 | 346-902-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-11 | 346-902-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-11 | 346-902-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-11 | 346-902-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | DICKINSON | TX |
| 2022-08-09 | 346-578-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-09 | 346-578-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-08-06 | 346-922-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | BROOKSHIRE | TX |
| 2022-08-03 | 346-647-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | MISSOURICY | TX |
| 2022-07-27 | 346-546-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-07-20 | 346-575-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2022-07-20 | 346-575-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2022-07-20 | 346-575-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2022-07-15 | 346-553-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2022-07-15 | 346-553-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2022-07-15 | 346-553-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2022-07-15 | 346-560-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2022-07-15 | 346-560-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HOUSTON | TX |
| 2022-07-15 | 346-574-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2022-07-15 | 346-574-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2022-07-15 | 346-574-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2022-07-13 | 346-573-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CYPRESS | 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.