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 217
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-09-01 | 217-323-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | BEARDSTOWN | IL |
| 2020-04-06 | 217-285-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | PITTSFIELD | IL |
| 2019-10-14 | 217-773-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | MTSTERLING | IL |
| 2015-03-05 | 217-209-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2014-03-05 | 217-209-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2013-08-28 | 217-506-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2012-06-07 | 217-490-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | JACKSONVL | IL |
| 2010-06-10 | 217-491-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | JACKSONVL | IL |
| 2004-08-22 | 217-617-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2004-08-22 | 217-617-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2004-08-22 | 217-617-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2004-08-22 | 217-617-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2004-08-22 | 217-617-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2004-08-22 | 217-617-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2004-08-22 | 217-617-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2004-08-22 | 217-617-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | IL |
| 2004-08-22 | 217-617-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - IL | 6265 | QUINCY | 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.