NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 917
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2012-08-03 | 917-391-2XXX | 2000–2999 | Assigned | TELENGY L.L.C. - NY | 473G | NWYRCYZN08 | NY |
| 2012-08-03 | 917-732-4XXX | 4000–4999 | Assigned | TELENGY L.L.C. - NY | 473G | NWYRCYZN09 | NY |
| 2012-07-10 | 917-259-1XXX | 1000–1999 | Assigned | TELENGY L.L.C. - NY | 473G | NWYRCYZN03 | NY |
| 2012-04-10 | 917-732-1XXX | 1000–1999 | Assigned | TELENGY L.L.C. - NY | 473G | NWYRCYZN09 | NY |
| 2012-01-24 | 917-396-7XXX | 7000–7999 | Assigned | TELENGY L.L.C. - NY | 473G | NWYRCYZN08 | NY |
| 2012-01-24 | 917-436-1XXX | 1000–1999 | Assigned | TELENGY L.L.C. - NY | 473G | NWYRCYZN07 | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.