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 336
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-08-27 | 336-490-8XXX | 8000–8999 | Assigned | RANDOLPH TELEPHONE TELECOMMUNICATIONS, INC. - NC | 757D | DENTON | NC |
| 2015-02-20 | 336-737-8XXX | 8000–8999 | Assigned | RANDOLPH TELEPHONE TELECOMMUNICATIONS, INC. - NC | 757D | RAMSEUR | NC |
| 2014-06-20 | 336-872-1XXX | 1000–1999 | Assigned | RANDOLPH TELEPHONE TELECOMMUNICATIONS, INC. - NC | 757D | SEAGROVE | NC |
| 2014-06-13 | 336-523-1XXX | 1000–1999 | Assigned | RANDOLPH TELEPHONE TELECOMMUNICATIONS, INC. - NC | 757D | ASHEBORO | NC |
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.