NumberResearchThousands-blocks in 518-517
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 518-517 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
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-04-14 | 518-517-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | COBLESKILL | NY |
| 2015-05-04 | 518-517-1XXX | 1000–1999 | Assigned | SEAMLESS GEOPORT COMM DBA MIDDLEBURGH TELEPHONE LD | 506H | COBLESKILL | NY |
| 2018-02-22 | 518-517-2XXX | 2000–2999 | Assigned | ONVOY, LLC- NY | 384C | COBLESKILL | NY |
| 2018-10-25 | 518-517-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | COBLESKILL | NY |
| 2019-08-12 | 518-517-4XXX | 4000–4999 | Assigned | ONVOY, LLC- NY | 384C | COBLESKILL | NY |
| 2018-08-16 | 518-517-5XXX | 5000–5999 | Assigned | BLUEBIRD COMMUNICATIONS, LLC - NY | 970H | COBLESKILL | NY |
| 2025-01-28 | 518-517-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF NEW YORK, LLC - NY | 155E | COBLESKILL | NY |
| 2020-10-22 | 518-517-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NY | 4006 | COBLESKILL | NY |
| 2020-10-08 | 518-517-8XXX | 8000–8999 | Assigned | PEERING HUB, INC. - NY | 818H | COBLESKILL | NY |
| 2022-07-05 | 518-517-9XXX | 9000–9999 | Assigned | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | COBLESKILL | 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.