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 423
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-06-30 | 423-275-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | CHATTNOOGA | TN |
| 2021-04-13 | 423-673-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | JOHNSON CY | TN |
| 2016-12-05 | 423-375-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | BENTON | TN |
| 2015-04-21 | 423-681-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | CHATTNOOGA | TN |
| 2014-08-04 | 423-913-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | JONESBORO | TN |
| 2014-05-15 | 423-207-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | MIDWAY | TN |
| 2013-07-01 | 423-939-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | JASPER | TN |
| 2011-08-19 | 423-271-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | SWEETWATER | TN |
| 2011-03-18 | 423-353-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | MORRISTOWN | TN |
| 2010-08-31 | 423-599-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | CLEVELAND | TN |
| 2010-08-25 | 423-572-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | ENGLEWOOD | TN |
| 2010-07-02 | 423-381-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | ATHENS | TN |
| 2010-03-24 | 423-289-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | MORRISTOWN | TN |
| 2010-01-08 | 423-735-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | ERWIN | TN |
| 2009-04-09 | 423-402-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | CHATTNOOGA | TN |
| 2009-04-09 | 423-402-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | CHATTNOOGA | TN |
| 2009-04-09 | 423-402-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | CHATTNOOGA | TN |
| 2008-09-17 | 423-254-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | MORRISTOWN | TN |
| 2008-07-25 | 423-939-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | JASPER | TN |
| 2008-05-29 | 423-823-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | GREENEVL | TN |
| 2008-02-08 | 423-307-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | MORRISTOWN | TN |
| 2007-02-05 | 423-307-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | MORRISTOWN | TN |
| 2006-06-16 | 423-285-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | DAYTON | TN |
| 2006-04-24 | 423-342-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | ELIZABTHTN | TN |
| 2006-04-24 | 423-529-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | GEORGETOWN | TN |
| 2006-04-12 | 423-228-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | SO PITTSBG | TN |
| 2005-08-26 | 423-354-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | BLOUNTVL | TN |
| 2005-02-14 | 423-665-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | CHARLESTON | TN |
| 2005-02-01 | 423-781-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | ETOWAH | TN |
| 2004-08-11 | 423-829-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | CHARLESTON | TN |
| 2004-02-27 | 423-289-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | MORRISTOWN | TN |
| 2004-01-14 | 423-200-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | MORRISTOWN | TN |
| 2003-07-23 | 423-254-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | MORRISTOWN | TN |
| 2002-09-23 | 423-243-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | SODDYDAISY | TN |
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.