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 |
|---|---|---|---|---|---|---|
| 2017-10-24 | 864-733 | 0–9 XXXall 10 · 7 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | GRAY COURT | SC |
| 2017-10-13 | 864-629 | 0XXX5XXX · 2 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | STARR | SC |
| 2017-10-12 | 864-705 | 0–9 XXXall 10 · 4 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | LAURESRURL | SC |
| 2017-10-12 | 864-709 | 0XXX5XXX · 2 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | HICKOYTVRN | SC |
| 2017-10-12 | 864-728 | 3XXX5XXX · 2 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | WEST END | SC |
| 2017-10-12 | 864-730 | 0XXX5XXX · 2 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | ENOREE | SC |
| 2017-10-11 | 864-604 | not yet reported which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | WABBEVILLE | SC |
| 2017-10-11 | 864-628 | not yet reported which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | CLARKSHILL | SC |
| 2017-10-11 | 864-632 | not yet reported which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | PLUMBRANCH | SC |
| — | 864-919 | 5XXX9XXX · 2 holders which blocks → | SOUTH CAROLINA TELECOMM GRP HOLDINGS, LLC - SC | 527H | DUE WEST | 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.