NumberResearchThousands-blocks in 843-707
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 843-707 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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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-07-07 | 843-707-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | BLUFFTON | SC |
| 2013-01-24 | 843-707-1XXX | 1000–1999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BLUFFTON | SC |
| 2015-04-15 | 843-707-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | BLUFFTON | SC |
| 2015-06-02 | 843-707-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | BLUFFTON | SC |
| 2016-10-18 | 843-707-4XXX | 4000–4999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BLUFFTON | SC |
| 2014-08-25 | 843-707-5XXX | 5000–5999 | Assigned | SUNCOM DBA T-MOBILE USA | 8645 | BLUFFTON | SC |
| 2016-01-08 | 843-707-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | BLUFFTON | SC |
| 2008-12-15 | 843-707-7XXX | 7000–7999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BLUFFTON | SC |
| 2009-04-21 | 843-707-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BLUFFTON | SC |
| 2012-03-07 | 843-707-9XXX | 9000–9999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | BLUFFTON | 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.