NumberResearchThousands-blocks in 843-951
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 843-951 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 |
|---|---|---|---|---|---|---|---|
| 2017-03-27 | 843-951-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | HARTSVILLE | SC |
| 2016-08-17 | 843-951-1XXX | 1000–1999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | HARTSVILLE | SC |
| 2016-08-17 | 843-951-2XXX | 2000–2999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | HARTSVILLE | SC |
| 2016-08-17 | 843-951-3XXX | 3000–3999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | HARTSVILLE | SC |
| 2016-08-17 | 843-951-4XXX | 4000–4999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | HARTSVILLE | SC |
| 2016-08-17 | 843-951-5XXX | 5000–5999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | HARTSVILLE | SC |
| 2016-08-17 | 843-951-6XXX | 6000–6999 | Assigned | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | HARTSVILLE | SC |
| 2016-09-14 | 843-951-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HARTSVILLE | SC |
| 2018-06-07 | 843-951-8XXX | 8000–8999 | Assigned | ONVOY, LLC - SC | 548E | HARTSVILLE | SC |
| 2018-03-20 | 843-951-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | HARTSVILLE | 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.