NumberResearchThousands-blocks in 843-974
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 843-974 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
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 |
|---|---|---|---|---|---|---|---|
| 2018-10-08 | 843-974-0XXX | 0000–0999 | Assigned | NUSO, LLC | 551G | CHARLESTON | SC |
| 2022-09-02 | 843-974-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | CHARLESTON | SC |
| 2023-05-08 | 843-974-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CHARLESTON | SC |
| 2020-06-12 | 843-974-3XXX | 3000–3999 | Assigned | COMCAST IP PHONE, LLC | 318J | CHARLESTON | SC |
| 2012-10-22 | 843-974-4XXX | 4000–4999 | Assigned | COMCAST IP PHONE, LLC | 318J | CHARLESTON | SC |
| 2012-07-12 | 843-974-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | CHARLESTON | SC |
| — | 843-974-6XXX | 6000–6999 | Reserved | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | CHARLESTON | SC |
| 2015-03-02 | 843-974-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | CHARLESTON | SC |
| 2018-09-14 | 843-974-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF SOUTH CAROLINA, LLC - SC | 098H | CHARLESTON | SC |
| 2022-09-02 | 843-974-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | CHARLESTON | 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.