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 464
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-04-16 | 464-265-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | LA GRANGE | IL |
| 2025-03-10 | 464-240-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | BELLWOOD | IL |
| 2025-03-10 | 464-262-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | BLUEISLAND | IL |
| 2025-01-07 | 464-241-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CALUMET CY | IL |
| 2024-10-14 | 464-252-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | LA GRANGE | IL |
| 2024-10-14 | 464-252-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | LA GRANGE | IL |
| 2024-09-19 | 464-251-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | CHICAGOHTS | IL |
| 2022-10-18 | 464-733-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | BLUEISLAND | IL |
| 2022-10-18 | 464-733-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | BLUEISLAND | IL |
| 2022-10-18 | 464-733-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | BLUEISLAND | IL |
| 2022-10-18 | 464-733-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | BLUEISLAND | IL |
| 2022-10-18 | 464-733-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - IL | 984E | BLUEISLAND | IL |
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.