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 906
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2010-07-12 | 906-372-3XXX | 3000–3999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | GWINN | MI |
| 2010-06-03 | 906-339-8XXX | 8000–8999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | CHAMPION | MI |
| 2010-04-13 | 906-203-3XXX | 3000–3999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | SALTSTMARI | MI |
| 2010-04-13 | 906-233-5XXX | 5000–5999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | ESCANABA | MI |
| 2010-04-13 | 906-285-5XXX | 5000–5999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | IRONWOOD | MI |
| 2010-04-13 | 906-290-5XXX | 5000–5999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | MENOMINEE | MI |
| 2010-04-13 | 906-298-3XXX | 3000–3999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | ST IGNACE | MI |
| 2009-01-20 | 906-239-1XXX | 1000–1999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | IRON MT | MI |
| 2008-06-24 | 906-204-3XXX | 3000–3999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | ISHPEMING | MI |
| 2008-06-24 | 906-232-1XXX | 1000–1999 | Assigned | BARAGA TELEPHONE COMPANY | 4253 | MARQUETTE | MI |
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.