NumberResearchThousands-blocks in 864-618
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 864-618 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 864 blocks
Most active assignees, all time — NPA 864
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 864-618-0XXX | 0000–0999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | WARESHOALS | SC |
| 2013-04-29 | 864-618-1XXX | 1000–1999 | Assigned | PRTCOMMUNICATIONS, LLC - SC | 1701 | WARESHOALS | SC |
| 2021-01-04 | 864-618-2XXX | 2000–2999 | Assigned | ONVOY, LLC - SC | 548E | WARESHOALS | SC |
| 2016-02-24 | 864-618-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | WARESHOALS | SC |
| — | 864-618-4XXX | 4000–4999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | WARESHOALS | SC |
| 2021-01-04 | 864-618-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SC | 548E | WARESHOALS | SC |
| 2020-06-01 | 864-618-6XXX | 6000–6999 | Assigned | ONVOY, LLC - SC | 548E | WARESHOALS | SC |
| 2014-08-28 | 864-618-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WARESHOALS | SC |
| 2012-04-12 | 864-618-8XXX | 8000–8999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | WARESHOALS | SC |
| 2025-11-12 | 864-618-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | WARESHOALS | SC |
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.