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 518
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-10-15 | 518-239-1XXX | 1000–1999 | Assigned | CATSKILLS COMMUNICATIONS, INC - NY | 360H | OAK HILL | NY |
| 2019-08-02 | 518-718-6XXX | 6000–6999 | Assigned | CATSKILLS COMMUNICATIONS, INC - NY | 360H | TANNERSVL | NY |
| 2017-05-25 | 518-989-1XXX | 1000–1999 | Assigned | CATSKILLS COMMUNICATIONS, INC - NY | 360H | LEXINGTON | NY |
| 2017-05-23 | 518-991-1XXX | 1000–1999 | Assigned | CATSKILLS COMMUNICATIONS, INC - NY | 360H | HUNTER | 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.