NumberResearchThousands-blocks in 843-755
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 843-755 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 843 blocks
Most active assignees, all time — NPA 843
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-01-24 | 843-755-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | SOCIETY HL | SC |
| 2023-04-18 | 843-755-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SOCIETY HL | SC |
| — | 843-755-2XXX | 2000–2999 | Available | SOCIETY HL | SC | ||
| 2013-01-23 | 843-755-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SOCIETY HL | SC |
| 2006-02-14 | 843-755-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | SOCIETY HL | SC |
| 2018-02-08 | 843-755-5XXX | 5000–5999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | SOCIETY HL | SC |
| 2018-06-07 | 843-755-6XXX | 6000–6999 | Assigned | ONVOY, LLC - SC | 548E | SOCIETY HL | SC |
| 2016-09-16 | 843-755-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SOCIETY HL | SC |
| 2020-02-25 | 843-755-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA SC- LLC | 635C | SOCIETY HL | SC |
| 2020-12-15 | 843-755-9XXX | 9000–9999 | Assigned | TELNYX LLC | 073H | SOCIETY HL | SC |
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.