NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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, all time — NPA 350
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-12-11 | 350-630-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | RIVERBANK | CA |
| 2023-12-11 | 350-750-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | SNRA MAIN | CA |
| 2023-12-11 | 350-955-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | WTFR DNPR | CA |
| 2023-10-10 | 350-209-4XXX | 4000–4999 | Assigned | TELNYX LLC | 073H | VALLEY SPG | CA |
| 2023-08-30 | 350-210-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | TUOLUMNE | CA |
| 2023-08-17 | 350-250-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | TRACY | CA |
| 2023-06-16 | 350-222-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | HUGHSON | CA |
| 2023-05-03 | 350-444-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SNELLING | CA |
| 2023-04-07 | 350-204-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | ATWATER | CA |
| 2023-03-23 | 350-206-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | TURLOCK | CA |
| 2023-01-30 | 350-205-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PLANADA | CA |
| 2023-01-17 | 350-777-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | GALT | CA |
| 2022-11-22 | 350-305-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | YOSEMITE | CA |
| 2022-10-13 | 350-666-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SANANDREAS | CA |
| 2022-10-13 | 350-888-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | GROVELAND | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.