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
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-07-21 | 854-307-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | HILTONHEAD | SC |
| 2026-04-01 | 854-248-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | PAGELAND | SC |
| 2025-07-01 | 854-289-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | HILTONHEAD | SC |
| 2025-07-01 | 854-289-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | HILTONHEAD | SC |
| 2025-07-01 | 854-289-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | HILTONHEAD | SC |
| 2025-07-01 | 854-289-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | HILTONHEAD | SC |
| 2025-07-01 | 854-289-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | HILTONHEAD | SC |
| 2025-06-27 | 854-287-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | MTPLEASANT | SC |
| 2025-06-27 | 854-287-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | MTPLEASANT | SC |
| 2025-06-27 | 854-287-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | MTPLEASANT | SC |
| 2025-06-27 | 854-287-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | MTPLEASANT | SC |
| 2025-06-27 | 854-287-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | MTPLEASANT | SC |
| 2025-02-10 | 854-278-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | BEAUFORT | SC |
| 2024-03-19 | 854-354-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | MTPLEASANT | SC |
| 2023-02-15 | 854-235-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | HILTONHEAD | SC |
| 2022-04-19 | 854-683-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | BLUFFTON | SC |
| 2022-01-26 | 854-214-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | CHARLESTON | SC |
| 2022-01-26 | 854-218-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | EASTCONWAY | SC |
| 2021-05-04 | 854-206-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | MONCKS COR | SC |
| 2015-12-02 | 854-999-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - SC | 5258 | 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.