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 |
|---|---|---|---|---|---|---|---|
| 2023-02-24 | 346-654-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | PINEHURST | TX |
| 2023-02-23 | 346-618-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-1XXX | 1000–1999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-6XXX | 6000–6999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-8XXX | 8000–8999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-23 | 346-618-9XXX | 9000–9999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2023-02-16 | 346-619-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | HOUSTON | TX |
| 2023-02-15 | 346-612-7XXX | 7000–7999 | Assigned | COMCAST IP PHONE, LLC | 318J | CLEVELAND | TX |
| 2023-02-08 | 346-615-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | KATY | TX |
| 2023-02-08 | 346-615-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | KATY | TX |
| 2023-02-07 | 346-594-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2023-02-07 | 346-623-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2023-02-07 | 346-623-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2023-01-31 | 346-623-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SATSUMA | TX |
| 2023-01-26 | 346-613-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HOUSTON | TX |
| 2023-01-26 | 346-613-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HOUSTON | TX |
| 2023-01-26 | 346-626-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | SUGAR LAND | TX |
| 2023-01-25 | 346-346-2XXX | 2000–2999 | Assigned | USFON, INC. - TX | 473F | FRIENDSWD | TX |
| 2023-01-25 | 346-346-3XXX | 3000–3999 | Assigned | USFON, INC. - TX | 473F | FRIENDSWD | TX |
| 2023-01-25 | 346-346-4XXX | 4000–4999 | Assigned | USFON, INC. - TX | 473F | FRIENDSWD | TX |
| 2023-01-25 | 346-346-5XXX | 5000–5999 | Assigned | USFON, INC. - TX | 473F | FRIENDSWD | TX |
| 2023-01-25 | 346-346-6XXX | 6000–6999 | Assigned | USFON, INC. - TX | 473F | FRIENDSWD | TX |
| 2023-01-25 | 346-346-7XXX | 7000–7999 | Assigned | USFON, INC. - TX | 473F | FRIENDSWD | TX |
| 2023-01-25 | 346-346-8XXX | 8000–8999 | Assigned | USFON, INC. - TX | 473F | FRIENDSWD | TX |
| 2023-01-25 | 346-346-9XXX | 9000–9999 | Assigned | USFON, INC. - TX | 473F | FRIENDSWD | TX |
| 2023-01-25 | 346-620-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | RICHMNRNBG | TX |
| 2023-01-25 | 346-620-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | RICHMNRNBG | TX |
| 2023-01-24 | 346-427-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | APOLLO | TX |
| 2023-01-20 | 346-559-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HUMBLE | TX |
| 2023-01-20 | 346-620-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | RICHMNRNBG | TX |
| 2023-01-20 | 346-620-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | RICHMNRNBG | TX |
| 2023-01-20 | 346-620-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | RICHMNRNBG | TX |
| 2023-01-20 | 346-620-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | RICHMNRNBG | TX |
| 2023-01-20 | 346-620-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | RICHMNRNBG | TX |
| 2023-01-20 | 346-636-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BAMMEL | TX |
| 2023-01-20 | 346-636-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BAMMEL | TX |
| 2023-01-20 | 346-636-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BAMMEL | TX |
| 2023-01-20 | 346-636-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BAMMEL | TX |
| 2023-01-20 | 346-636-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BAMMEL | TX |
| 2023-01-20 | 346-662-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HUMBLE | TX |
| 2023-01-20 | 346-662-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HUMBLE | TX |
| 2023-01-20 | 346-662-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HUMBLE | TX |
| 2023-01-20 | 346-662-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HUMBLE | TX |
| 2023-01-20 | 346-676-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | KEMAH | TX |
| 2023-01-20 | 346-676-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | KEMAH | 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.