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 657
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-06-17 | 657-594-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | ANAHEIM | CA |
| 2020-08-03 | 657-438-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | ORANGE | CA |
| 2020-08-03 | 657-438-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | ORANGE | CA |
| 2017-10-25 | 657-345-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | YORBALINDA | CA |
| 2016-06-28 | 657-284-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | ORANGE | CA |
| 2016-03-22 | 657-255-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | BUENA PARK | CA |
| 2015-11-23 | 657-445-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | FULLERTON | CA |
| 2015-08-26 | 657-281-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | ORANGE | CA |
| 2015-07-09 | 657-271-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | WESTMINSTR | CA |
| 2015-02-13 | 657-261-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | SANTA ANA | CA |
| 2014-12-18 | 657-282-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | ORANGE | CA |
| 2014-08-13 | 657-236-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ORANGE | CA |
| 2014-06-17 | 657-238-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | CYPRESS | CA |
| 2014-06-17 | 657-242-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | ANAHEIM | CA |
| 2014-01-31 | 657-231-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | SANTA ANA | CA |
| 2013-02-26 | 657-800-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | GARDEN GRV | CA |
| 2012-09-07 | 657-900-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | SANTA ANA | CA |
| 2012-07-09 | 657-400-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | WESTMINSTR | CA |
| 2011-07-13 | 657-216-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | PLACENTIA | CA |
| 2010-03-31 | 657-269-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | SANTA ANA | CA |
| 2009-08-26 | 657-859-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | SANTA ANA | CA |
| 2008-09-24 | 657-859-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | SANTA ANA | CA |
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.