NumberResearchThousands-blocks in 518-837
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 518-837 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
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-02-04 | 518-837-0XXX | 0000–0999 | Assigned | SLIC NETWORK SOLUTIONS, INC. - NY | 193C | LAKEPLACID | NY |
| 2014-10-14 | 518-837-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LAKEPLACID | NY |
| 2015-06-30 | 518-837-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | LAKEPLACID | NY |
| 2006-08-07 | 518-837-3XXX | 3000–3999 | Assigned | RINGSQUARED TELECOM LLC | 8249 | LAKEPLACID | NY |
| 2016-03-14 | 518-837-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | LAKEPLACID | NY |
| 2006-08-14 | 518-837-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | LAKEPLACID | NY |
| 2015-09-09 | 518-837-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - NY | 997E | LAKEPLACID | NY |
| 2008-08-04 | 518-837-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | LAKEPLACID | NY |
| 2012-07-31 | 518-837-8XXX | 8000–8999 | Assigned | ONVOY, LLC- NY | 384C | LAKEPLACID | NY |
| — | 518-837-9XXX | 9000–9999 | Assigned (pending) | LAKEPLACID | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.