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 574
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-03-22 | 574-767-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PLYMOUTH | IN |
| 2022-02-23 | 574-768-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ELKHART | IN |
| 2022-02-07 | 574-732-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | LOGANSPORT | IN |
| 2022-02-01 | 574-363-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BOURBON | IN |
| 2022-02-01 | 574-646-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MILLWOOD | IN |
| 2022-01-31 | 574-242-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WINAMAC | IN |
| 2022-01-31 | 574-666-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SOUTH BEND | IN |
| 2022-01-13 | 574-663-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MIDDLEBURY | IN |
| 2022-01-13 | 574-746-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DUNLAP | IN |
| 2022-01-13 | 574-764-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BURKET | IN |
| 2022-01-13 | 574-783-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | LUCERNE | IN |
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.