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 435
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-07-31 | 435-868-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | CEDAR CITY | UT |
| 2015-01-20 | 435-265-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | LOGAN | UT |
| 2014-12-09 | 435-315-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | HEBER CITY | UT |
| 2012-08-08 | 435-414-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | ST GEORGE | UT |
| 2009-11-19 | 435-252-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | PARK CITY | UT |
| 2006-10-24 | 435-879-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ST GEORGE | UT |
| 2003-11-19 | 435-627-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ST GEORGE | UT |
| 2003-11-19 | 435-868-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | CEDAR CITY | UT |
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.