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 |
|---|---|---|---|---|---|---|---|
| 2022-11-16 | 346-559-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | HUMBLE | TX |
| 2022-11-16 | 346-559-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HUMBLE | TX |
| 2022-11-16 | 346-559-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HUMBLE | TX |
| 2022-11-16 | 346-572-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | TX |
| 2022-11-16 | 346-572-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | TX |
| 2022-11-16 | 346-572-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | TOMBALL | TX |
| 2022-11-16 | 346-590-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | WESTFIELD | TX |
| 2022-11-16 | 346-590-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | WESTFIELD | TX |
| 2022-11-16 | 346-626-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2022-11-16 | 346-626-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2022-11-16 | 346-626-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | SUGAR LAND | TX |
| 2022-11-16 | 346-636-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | BAMMEL | TX |
| 2022-11-16 | 346-636-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | BAMMEL | TX |
| 2022-11-16 | 346-636-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | BAMMEL | TX |
| 2022-11-16 | 346-655-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | ROSHARON | TX |
| 2022-11-16 | 346-656-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | TX |
| 2022-11-16 | 346-656-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | TX |
| 2022-11-16 | 346-656-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | TX |
| 2022-11-16 | 346-656-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | TX |
| 2022-11-16 | 346-663-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HIGHLANDS | TX |
| 2022-11-16 | 346-663-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HIGHLANDS | TX |
| 2022-11-15 | 346-523-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | KEMAH | TX |
| 2022-11-15 | 346-584-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | FRIENDSWD | TX |
| 2022-11-15 | 346-584-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | FRIENDSWD | TX |
| 2022-11-15 | 346-589-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2022-11-15 | 346-589-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2022-11-15 | 346-589-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2022-11-15 | 346-601-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2022-11-15 | 346-601-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2022-11-15 | 346-601-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2022-11-15 | 346-601-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2022-11-15 | 346-601-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2022-11-15 | 346-601-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2022-11-15 | 346-604-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-11-15 | 346-604-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-11-15 | 346-604-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-11-15 | 346-604-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-11-15 | 346-604-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-11-15 | 346-604-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-11-15 | 346-604-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-11-15 | 346-604-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2022-11-15 | 346-637-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | KATY | TX |
| 2022-11-15 | 346-637-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | KATY | TX |
| 2022-11-15 | 346-637-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | KATY | TX |
| 2022-11-15 | 346-788-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | LEAGUECITY | TX |
| 2022-11-07 | 346-499-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DEER PARK | TX |
| 2022-11-07 | 346-590-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | WESTFIELD | TX |
| 2022-11-04 | 346-538-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | RICHMNRNBG | TX |
| 2022-11-02 | 346-603-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | TX |
| 2022-11-02 | 346-603-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | ALVIN | 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.