NumberResearchRecent thousands-block assignments
0 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, all time — NPA 319
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-02-07 | 319-417-6XXX | 6000–6999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | FT MADISON | IA |
| 2025-02-07 | 319-767-4XXX | 4000–4999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | KEOKUK | IA |
| 2025-02-06 | 319-601-3XXX | 3000–3999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | BURLINGTON | IA |
| 2025-01-10 | 319-710-6XXX | 6000–6999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | MTPLEASANT | IA |
| 2024-06-03 | 319-340-6XXX | 6000–6999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | WATERLOO | IA |
| 2020-09-23 | 319-259-7XXX | 7000–7999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | IOWA CITY | IA |
| 2019-08-07 | 319-318-5XXX | 5000–5999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | VINTON | IA |
| 2016-07-11 | 319-519-6XXX | 6000–6999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | IOWA CITY | IA |
| 2016-02-02 | 319-559-2XXX | 2000–2999 | Assigned | IMON COMMUNICATIONS, LLC - IA | 695G | WAVERLY | IA |
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.