NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/26/2026
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 937
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-04-04 | 937-992-0XXX | 0000–0999 | Assigned | FRONTIER NORTH, INC. - OH | 0615 | WILMINGTON | OH |
| 2008-10-29 | 937-549-5XXX | 5000–5999 | Assigned | FRONTIER NORTH, INC. - OH | 0615 | MANCHESTER | OH |
| 2007-08-22 | 937-552-8XXX | 8000–8999 | Assigned | FRONTIER NORTH, INC. - OH | 0615 | TROY | OH |
| 2005-02-16 | 937-302-2XXX | 2000–2999 | Assigned | FRONTIER NORTH, INC. - OH | 0615 | WILMINGTON | OH |
| 2005-02-16 | 937-302-3XXX | 3000–3999 | Assigned | FRONTIER NORTH, INC. - OH | 0615 | WILMINGTON | OH |
| 2005-02-16 | 937-302-4XXX | 4000–4999 | Assigned | FRONTIER NORTH, INC. - OH | 0615 | WILMINGTON | OH |
| 2005-02-16 | 937-302-5XXX | 5000–5999 | Assigned | FRONTIER NORTH, INC. - OH | 0615 | WILMINGTON | OH |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.