NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 854
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-08-01 | 854-864-2XXX | 2000–2999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | ISLE PALMS | SC |
| 2023-02-22 | 854-263-8XXX | 8000–8999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | ST STEPHEN | SC |
| 2020-06-15 | 854-429-7XXX | 7000–7999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | CHARLESTON | SC |
| 2019-02-08 | 854-429-4XXX | 4000–4999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | CHARLESTON | SC |
| 2019-02-08 | 854-429-5XXX | 5000–5999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | CHARLESTON | SC |
| 2018-03-12 | 854-227-1XXX | 1000–1999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | MTPLEASANT | SC |
| 2018-03-12 | 854-227-2XXX | 2000–2999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | MTPLEASANT | SC |
| 2017-08-18 | 854-429-1XXX | 1000–1999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | CHARLESTON | SC |
| 2016-09-14 | 854-888-2XXX | 2000–2999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | SUMMERVL | SC |
| 2015-11-16 | 854-529-3XXX | 3000–3999 | Assigned | SOUTH CAROLINA NET, INC. - SC | 1784 | 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.