NumberResearchRecent thousands-block assignments
36 blocks assigned in the last 30 days · 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, 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 |
|---|---|---|---|---|---|---|---|
| 2025-03-05 | 346-862-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2025-03-05 | 346-862-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2025-03-05 | 346-862-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2025-03-05 | 346-862-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2025-03-05 | 346-862-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | HOUSTON | TX |
| 2025-03-03 | 346-819-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HUMBLE | TX |
| 2025-03-03 | 346-819-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HUMBLE | TX |
| 2025-03-03 | 346-819-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HUMBLE | TX |
| 2025-02-19 | 346-735-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2025-02-19 | 346-785-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2025-02-19 | 346-785-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2025-02-18 | 346-828-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | SPRING | TX |
| 2025-02-18 | 346-860-0XXX | 0000–0999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-5XXX | 5000–5999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-8XXX | 8000–8999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-18 | 346-860-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | HOUSTON | TX |
| 2025-02-13 | 346-713-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | SMITHERSLK | TX |
| 2025-02-13 | 346-850-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | CYPRESS | TX |
| 2025-02-13 | 346-859-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2025-02-12 | 346-845-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2025-02-10 | 346-535-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-535-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-535-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-639-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-678-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-678-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-699-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-761-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SATSUMA | TX |
| 2025-02-10 | 346-769-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SATSUMA | TX |
| 2025-02-10 | 346-769-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SATSUMA | TX |
| 2025-02-10 | 346-793-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | STAFFORD | TX |
| 2025-02-10 | 346-793-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | STAFFORD | TX |
| 2025-02-10 | 346-793-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | STAFFORD | TX |
| 2025-02-10 | 346-829-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SUGAR LAND | TX |
| 2025-02-10 | 346-829-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SUGAR LAND | TX |
| 2025-02-10 | 346-829-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SUGAR LAND | TX |
| 2025-02-10 | 346-853-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-853-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-853-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-853-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-853-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-853-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-853-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-10 | 346-853-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2025-02-07 | 346-856-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHANNELVW | 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.