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 |
|---|---|---|---|---|---|---|---|
| 2016-02-23 | 346-315-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | DEER PARK | TX |
| 2016-02-23 | 346-315-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | DEER PARK | TX |
| 2016-02-23 | 346-818-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | CYPRESS | TX |
| 2016-02-23 | 346-818-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | CYPRESS | TX |
| 2016-02-19 | 346-223-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2016-02-19 | 346-223-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | HOUSTON | TX |
| 2016-02-19 | 346-402-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | CLEVELAND | TX |
| 2016-02-19 | 346-404-0XXX | 0000–0999 | Assigned | IP GLOBAL NETWORKS - TX | 763H | HOUSTON | TX |
| 2016-02-19 | 346-616-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | HUMBLE | TX |
| 2016-02-19 | 346-616-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | HUMBLE | TX |
| 2016-02-18 | 346-770-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | BAMMEL | TX |
| 2016-02-18 | 346-770-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | BAMMEL | TX |
| 2016-02-18 | 346-818-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | CYPRESS | TX |
| 2016-02-18 | 346-818-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | CYPRESS | TX |
| 2016-02-17 | 346-754-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HSTNSUBURB | TX |
| 2016-02-16 | 346-230-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | APOLLO | TX |
| 2016-02-16 | 346-230-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | APOLLO | TX |
| 2016-02-16 | 346-402-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CLEVELAND | TX |
| 2016-02-16 | 346-402-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CLEVELAND | TX |
| 2016-02-16 | 346-402-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CLEVELAND | TX |
| 2016-02-16 | 346-402-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CLEVELAND | TX |
| 2016-02-16 | 346-754-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | HSTNSUBURB | TX |
| 2016-02-12 | 346-239-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | RICHMNRNBG | TX |
| 2016-02-12 | 346-802-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2016-02-12 | 346-802-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2016-02-12 | 346-802-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | HOUSTON | TX |
| 2016-02-09 | 346-802-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HOUSTON | TX |
| 2016-02-05 | 346-220-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2016-02-05 | 346-220-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | SPRING | TX |
| 2016-02-04 | 346-223-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2016-02-04 | 346-226-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2016-02-04 | 346-227-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2016-02-03 | 346-232-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-232-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-232-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-232-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-232-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-232-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-232-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-232-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-310-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-310-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-310-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-310-3XXX | 3000–3999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-03 | 346-310-4XXX | 4000–4999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | HOUSTON | TX |
| 2016-02-02 | 346-309-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | SUGAR LAND | TX |
| 2016-02-02 | 346-802-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | HOUSTON | TX |
| 2016-01-29 | 346-232-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HOUSTON | TX |
| 2016-01-29 | 346-232-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HOUSTON | TX |
| 2016-01-28 | 346-616-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | HUMBLE | 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.