NumberResearchRecent thousands-block assignments
13 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 831
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 |
|---|---|---|---|---|---|---|---|
| 2026-09-17 | 831-330-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | CARMEL | CA |
| 2026-09-17 | 831-633-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | CASTROVL | CA |
| 2026-09-14 | 831-689-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | APTOS | CA |
| 2026-09-14 | 831-808-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SOLEDAD | CA |
| 2026-09-09 | 831-366-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | BOULDERCRK | CA |
| 2026-09-03 | 831-312-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | MONTEREY | CA |
| 2026-09-03 | 831-327-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | HOLLISTER | CA |
| 2026-09-03 | 831-327-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | HOLLISTER | CA |
| 2026-09-03 | 831-343-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SALINAS | CA |
| 2026-09-03 | 831-343-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SALINAS | CA |
| 2026-09-01 | 831-289-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | BEN LOMOND | CA |
| 2026-08-27 | 831-348-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | WATSONVL | CA |
| 2026-08-26 | 831-880-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEREY | CA |
| 2026-08-20 | 831-203-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SALINAS | CA |
| 2026-08-20 | 831-203-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SALINAS | CA |
| 2026-08-20 | 831-283-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | CARMEL VLY | CA |
| 2026-08-19 | 831-280-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | APTOS | CA |
| 2026-08-19 | 831-365-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-08-19 | 831-844-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | BIG SUR | CA |
| 2026-08-07 | 831-203-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SALINAS | CA |
| 2026-08-07 | 831-365-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-08-06 | 831-880-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MONTEREY | CA |
| 2026-07-30 | 831-339-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | GONZALES | CA |
| 2026-07-28 | 831-284-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | WATSONVL | CA |
| 2026-07-28 | 831-880-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MONTEREY | CA |
| 2026-07-28 | 831-881-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | MONTEREY | CA |
| 2026-07-28 | 831-881-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | MONTEREY | CA |
| 2026-07-24 | 831-329-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SALINAS | CA |
| 2026-07-24 | 831-329-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SALINAS | CA |
| 2026-07-24 | 831-329-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SALINAS | CA |
| 2026-07-24 | 831-329-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SALINAS | CA |
| 2026-07-24 | 831-340-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-07-24 | 831-365-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-07-24 | 831-460-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-07-21 | 831-280-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | APTOS | CA |
| 2026-07-21 | 831-330-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | CARMEL | CA |
| 2026-07-21 | 831-741-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CASTROVL | CA |
| 2026-07-16 | 831-468-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEREY | CA |
| 2026-07-09 | 831-329-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SALINAS | CA |
| 2026-07-01 | 831-284-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WATSONVL | CA |
| 2026-06-15 | 831-468-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MONTEREY | CA |
| 2026-06-12 | 831-468-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MONTEREY | CA |
| 2026-06-12 | 831-468-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MONTEREY | CA |
| 2026-06-04 | 831-328-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SALINAS | CA |
| 2026-06-04 | 831-328-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SALINAS | CA |
| 2026-06-01 | 831-340-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-06-01 | 831-340-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-06-01 | 831-340-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-06-01 | 831-340-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SANTA CRUZ | CA |
| 2026-05-29 | 831-224-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | MONTEREY | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.