NumberResearchRecent thousands-block assignments
36 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 |
|---|---|---|---|---|---|---|---|
| 2025-02-07 | 346-856-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHANNELVW | TX |
| 2025-02-07 | 346-856-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHANNELVW | TX |
| 2025-02-06 | 346-736-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | PORTER | TX |
| 2025-02-04 | 346-853-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HSTNSUBURB | TX |
| 2025-02-04 | 346-853-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | HSTNSUBURB | TX |
| 2025-02-04 | 346-856-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CHANNELVW | TX |
| 2025-02-04 | 346-856-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | CHANNELVW | TX |
| 2025-02-04 | 346-858-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CLEVELAND | TX |
| 2025-02-04 | 346-858-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | CLEVELAND | TX |
| 2025-01-31 | 346-362-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SHELDON | TX |
| 2025-01-31 | 346-484-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | SHELDON | TX |
| 2025-01-31 | 346-686-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MANVEL | TX |
| 2025-01-31 | 346-686-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | MANVEL | TX |
| 2025-01-31 | 346-784-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | SEABROOK | TX |
| 2025-01-31 | 346-784-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SEABROOK | TX |
| 2025-01-31 | 346-797-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WESTFIELD | TX |
| 2025-01-31 | 346-797-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WESTFIELD | TX |
| 2025-01-31 | 346-821-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | SPLENDORA | TX |
| 2025-01-31 | 346-821-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SPLENDORA | TX |
| 2025-01-30 | 346-735-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | ALVIN | TX |
| 2025-01-30 | 346-735-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | ALVIN | TX |
| 2025-01-30 | 346-790-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LA PORTE | TX |
| 2025-01-30 | 346-790-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | LA PORTE | TX |
| 2025-01-30 | 346-798-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | FRIENDSWD | TX |
| 2025-01-30 | 346-798-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | FRIENDSWD | TX |
| 2025-01-30 | 346-844-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | DEER PARK | TX |
| 2025-01-30 | 346-844-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | DEER PARK | TX |
| 2025-01-16 | 346-820-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BARKER | TX |
| 2025-01-16 | 346-824-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BARKER | TX |
| 2025-01-16 | 346-824-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BARKER | TX |
| 2025-01-16 | 346-941-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2025-01-16 | 346-941-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2025-01-16 | 346-941-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CHANNELVW | TX |
| 2025-01-15 | 346-852-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-15 | 346-852-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | LANGHAMCRK | TX |
| 2025-01-13 | 346-839-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | APOLLO | TX |
| 2025-01-13 | 346-839-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | APOLLO | TX |
| 2025-01-13 | 346-839-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | APOLLO | TX |
| 2025-01-09 | 346-663-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | HIGHLANDS | TX |
| 2025-01-09 | 346-709-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | LEAGUECITY | TX |
| 2025-01-09 | 346-737-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | BAYTOWN | TX |
| 2025-01-09 | 346-785-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | 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.