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 315
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2019-05-06 | 315-352-6XXX | 6000–6999 | Assigned | CORETEL NEW YORK, INC. - NY | 1215 | BALDWINSVL | NY |
| 2019-05-06 | 315-352-7XXX | 7000–7999 | Assigned | CORETEL NEW YORK, INC. - NY | 1215 | BALDWINSVL | NY |
| 2019-05-06 | 315-743-2XXX | 2000–2999 | Assigned | CORETEL NEW YORK, INC. - NY | 1215 | BALDWINSVL | NY |
| 2019-05-06 | 315-743-3XXX | 3000–3999 | Assigned | CORETEL NEW YORK, INC. - NY | 1215 | BALDWINSVL | NY |
| 2019-02-15 | 315-961-0XXX | 0000–0999 | Assigned | CORETEL NEW YORK, INC. - NY | 1215 | ADAMS | NY |
| 2019-02-15 | 315-971-2XXX | 2000–2999 | Assigned | CORETEL NEW YORK, INC. - NY | 1215 | FAIR HAVEN | NY |
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.