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 228
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-10-01 | 228-446-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MS | 992E | BILOXI | MS |
| 2015-10-06 | 228-641-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MS | 992E | TANNERWLMS | MS |
| 2015-05-18 | 228-641-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - MS | 992E | TANNERWLMS | MS |
| 2014-10-08 | 228-641-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MS | 992E | TANNERWLMS | MS |
| 2014-02-18 | 228-641-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MS | 992E | TANNERWLMS | MS |
| 2012-11-16 | 228-641-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MS | 992E | TANNERWLMS | MS |
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.