NumberResearchRecent thousands-block assignments
5 blocks assigned in January 2026 · from the daily NANPA thousands-block report, 09/19/2026
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, January 2026 — NPA 425
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-01-16 | 425-479-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RENTON | WA |
| 2026-01-16 | 425-479-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RENTON | WA |
| 2026-01-12 | 425-581-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | SILVERLAKE | WA |
| 2026-01-12 | 425-995-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - WA | 006F | EVERETT | WA |
| 2026-01-08 | 425-592-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BELLEVUE | WA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.