NumberResearchThousands-blocks in 518-450
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 518-450 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 |
|---|---|---|---|---|---|---|---|
| — | 518-450-0XXX | 0000–0999 | Reserved | PAETEC ITEL, LLC | 829J | SARATOGSPG | NY |
| 2010-10-04 | 518-450-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SARATOGSPG | NY |
| 2014-04-10 | 518-450-2XXX | 2000–2999 | Assigned | LEVEL 3 TELECOM OF NEW YORK, LP - NY | 8473 | SARATOGSPG | NY |
| 2015-04-27 | 518-450-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SARATOGSPG | NY |
| 2016-11-09 | 518-450-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SARATOGSPG | NY |
| 2016-11-09 | 518-450-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SARATOGSPG | NY |
| 2017-03-02 | 518-450-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | SARATOGSPG | NY |
| 2015-07-01 | 518-450-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SARATOGSPG | NY |
| 2014-10-14 | 518-450-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SARATOGSPG | NY |
| 2014-10-14 | 518-450-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | SARATOGSPG | 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.