NumberResearchRecent thousands-block assignments
33 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 |
|---|---|---|---|---|---|---|---|
| 2017-11-07 | 346-263-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BAYTOWN | TX |
| 2017-11-07 | 346-263-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | BAYTOWN | TX |
| 2017-11-03 | 346-282-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2017-11-03 | 346-282-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2017-11-03 | 346-282-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2017-11-03 | 346-282-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHANNELVW | TX |
| 2017-10-31 | 346-255-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2017-10-31 | 346-255-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2017-10-31 | 346-255-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2017-10-30 | 346-280-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CYPRESS | TX |
| 2017-10-30 | 346-280-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CYPRESS | TX |
| 2017-10-30 | 346-280-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CYPRESS | TX |
| 2017-10-25 | 346-280-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2017-10-25 | 346-280-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2017-10-25 | 346-280-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2017-10-20 | 346-412-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CYPRESS | TX |
| 2017-10-19 | 346-279-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | SUGAR LAND | TX |
| 2017-10-18 | 346-242-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2017-10-18 | 346-242-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2017-10-18 | 346-978-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2017-10-18 | 346-978-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2017-10-13 | 346-272-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2017-10-12 | 346-277-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2017-10-12 | 346-616-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | HUMBLE | TX |
| 2017-10-12 | 346-816-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | ARCOLA | TX |
| 2017-10-11 | 346-414-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | CLEVELAND | TX |
| 2017-10-11 | 346-978-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LANGHAMCRK | TX |
| 2017-10-11 | 346-978-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LANGHAMCRK | TX |
| 2017-10-10 | 346-245-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | STAFFORD | TX |
| 2017-10-10 | 346-258-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SHELDON | TX |
| 2017-10-10 | 346-261-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | PORTER | TX |
| 2017-10-10 | 346-414-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | CLEVELAND | TX |
| 2017-10-10 | 346-954-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | DEER PARK | TX |
| 2017-10-06 | 346-268-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2017-10-06 | 346-268-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRING | TX |
| 2017-10-05 | 346-278-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANVEL | TX |
| 2017-10-05 | 346-278-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANVEL | TX |
| 2017-10-03 | 346-275-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2017-10-03 | 346-275-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2017-10-03 | 346-275-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2017-10-03 | 346-275-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2017-10-03 | 346-275-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2017-10-03 | 346-275-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2017-10-03 | 346-277-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SATSUMA | TX |
| 2017-10-03 | 346-277-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SATSUMA | TX |
| 2017-10-02 | 346-707-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | VLY LODGE | TX |
| 2017-09-29 | 346-242-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2017-09-29 | 346-242-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2017-09-29 | 346-242-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2017-09-29 | 346-272-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HOUSTON | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.