NumberResearchRecent thousands-block assignments
7 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 574
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2002-11-13 | 574-647-7XXX | 7000–7999 | Assigned | INDIANA BELL TEL CO INC | 9325 | SOUTH BEND | IN |
| 2002-11-13 | 574-647-8XXX | 8000–8999 | Assigned | INDIANA BELL TEL CO INC | 9325 | SOUTH BEND | IN |
| 2002-11-13 | 574-647-9XXX | 9000–9999 | Assigned | INDIANA BELL TEL CO INC | 9325 | SOUTH BEND | IN |
| 2002-10-31 | 574-575-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ELKHART | IN |
| 2002-09-12 | 574-626-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | WALTON | IN |
| 2002-09-12 | 574-889-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | LUCERNE | IN |
| 2002-07-12 | 574-516-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | LOGANSPORT | IN |
| 2002-06-20 | 574-206-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | ELKHART | IN |
| 2002-06-20 | 574-538-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | GOSHEN | IN |
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.