NumberResearchThousands-blocks in 518-787
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 518-787 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 518 blocks
Most active assignees, all time — NPA 518
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-01-05 | 518-787-0XXX | 0000–0999 | Assigned | PEERING HUB, INC. - NY | 818H | RAVENA | NY |
| 2014-05-06 | 518-787-1XXX | 1000–1999 | Assigned | TVC ALBANY, INC. DBA FIRSTLIGHT FIBER | 7989 | RAVENA | NY |
| — | 518-787-2XXX | 2000–2999 | Available | RAVENA | NY | ||
| — | 518-787-3XXX | 3000–3999 | Available | RAVENA | NY | ||
| — | 518-787-4XXX | 4000–4999 | Available | RAVENA | NY | ||
| — | 518-787-5XXX | 5000–5999 | Available | RAVENA | NY | ||
| — | 518-787-6XXX | 6000–6999 | Available | RAVENA | NY | ||
| 2025-06-18 | 518-787-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RAVENA | NY |
| 2018-04-05 | 518-787-8XXX | 8000–8999 | Assigned | SEAMLESS GEOPORT COMM DBA MIDDLEBURGH TELEPHONE LD | 506H | RAVENA | NY |
| — | 518-787-9XXX | 9000–9999 | Available | RAVENA | 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.