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 |
|---|---|---|---|---|---|---|---|
| 2016-04-01 | 346-315-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DEER PARK | TX |
| 2016-04-01 | 346-315-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DEER PARK | TX |
| 2016-03-30 | 346-323-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF TEXAS, INC. | 2114 | HUMBLE | TX |
| 2016-03-25 | 346-387-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | KATY | TX |
| 2016-03-24 | 346-220-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2016-03-24 | 346-220-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2016-03-24 | 346-239-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | RICHMNRNBG | TX |
| 2016-03-24 | 346-248-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | PINEHURST | TX |
| 2016-03-24 | 346-248-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | PINEHURST | TX |
| 2016-03-24 | 346-857-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | RICHMNRNBG | TX |
| 2016-03-24 | 346-857-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | RICHMNRNBG | TX |
| 2016-03-23 | 346-226-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2016-03-23 | 346-226-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2016-03-23 | 346-226-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2016-03-23 | 346-226-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2016-03-23 | 346-226-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2016-03-23 | 346-230-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | APOLLO | TX |
| 2016-03-23 | 346-230-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | APOLLO | TX |
| 2016-03-23 | 346-787-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | LA PORTE | TX |
| 2016-03-23 | 346-787-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | LA PORTE | TX |
| 2016-03-22 | 346-252-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | HSTNSUBURB | TX |
| 2016-03-21 | 346-831-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | SPRING | TX |
| 2016-03-15 | 346-220-8XXX | 8000–8999 | Assigned | IP GLOBAL NETWORKS - TX | 763H | SPRING | TX |
| 2016-03-15 | 346-239-5XXX | 5000–5999 | Assigned | IP GLOBAL NETWORKS - TX | 763H | RICHMNRNBG | TX |
| 2016-03-11 | 346-248-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | PINEHURST | TX |
| 2016-03-11 | 346-248-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | PINEHURST | TX |
| 2016-03-11 | 346-907-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-11 | 346-907-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-11 | 346-907-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-11 | 346-907-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-09 | 346-209-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | LIVERPOOL | TX |
| 2016-03-09 | 346-209-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | LIVERPOOL | TX |
| 2016-03-09 | 346-708-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | TX |
| 2016-03-09 | 346-708-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | LANGHAMCRK | TX |
| 2016-03-09 | 346-908-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | SMITHERSLK | TX |
| 2016-03-09 | 346-908-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SMITHERSLK | TX |
| 2016-03-08 | 346-252-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-08 | 346-252-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-08 | 346-252-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-08 | 346-304-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | STAFFORD | TX |
| 2016-03-08 | 346-315-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | DEER PARK | TX |
| 2016-03-08 | 346-315-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | DEER PARK | TX |
| 2016-03-08 | 346-321-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | CHANNELVW | TX |
| 2016-03-08 | 346-321-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | CHANNELVW | TX |
| 2016-03-08 | 346-754-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-08 | 346-754-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-03-04 | 346-205-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LANGHAMCRK | TX |
| 2016-03-04 | 346-251-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2016-03-04 | 346-251-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2016-03-04 | 346-251-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | BARKER | 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.