NumberResearchRecent thousands-block assignments
2 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 231
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-09-09 | 231-391-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | WALLOON LK | MI |
| 2026-09-01 | 231-380-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | NEWAYGO | MI |
| 2026-08-07 | 231-371-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | TUSTIN | MI |
| 2026-07-21 | 231-294-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | FIFE LAKE | MI |
| 2026-04-29 | 231-438-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | HARBOR SPG | MI |
| 2026-04-29 | 231-446-5XXX | 5000–5999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | NORTHPORT | MI |
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.