NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2018-04-12 | 843-895 | 0–9 XXXall 10 · 3 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | HILTONHEAD | SC |
| 2017-10-11 | 843-993 | not yet reported which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | LANE | SC |
| 2016-11-01 | 843-827 | 0XXX which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | AYNOR | SC |
| 2016-10-13 | 843-698 | 0–9 XXXall 10 · 3 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | EASTCONWAY | SC |
| — | 843-515 | 1XXX5XXX · 2 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | NOKINGSTRE | SC |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.