NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026
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 630
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-01-20 | 630-381-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | YORKVILLE | IL |
| 2015-01-20 | 630-381-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | YORKVILLE | IL |
| 2010-10-01 | 630-501-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELMHURST | IL |
| 2010-10-01 | 630-501-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELMHURST | IL |
| 2010-07-02 | 630-537-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2010-07-02 | 630-537-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2010-07-02 | 630-537-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2010-07-02 | 630-537-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2010-07-02 | 630-537-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2009-10-01 | 630-256-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | AURORA | IL |
| 2009-10-01 | 630-256-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | AURORA | IL |
| 2009-10-01 | 630-256-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | AURORA | IL |
| 2009-10-01 | 630-256-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | AURORA | IL |
| 2009-10-01 | 630-256-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | AURORA | IL |
| 2008-04-18 | 630-948-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BENSENVL | IL |
| 2008-04-14 | 630-517-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2008-04-14 | 630-765-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2008-04-14 | 630-765-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2007-09-10 | 630-385-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | YORKVILLE | IL |
| 2007-07-23 | 630-914-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LEMONT | IL |
| 2007-02-16 | 630-312-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LEMONT | IL |
| 2007-02-16 | 630-312-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LEMONT | IL |
| 2007-02-16 | 630-312-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LEMONT | IL |
| 2007-02-16 | 630-312-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LEMONT | IL |
| 2007-02-16 | 630-312-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LEMONT | IL |
| 2007-02-16 | 630-312-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LEMONT | IL |
| 2006-08-25 | 630-636-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OSWEGO | IL |
| 2006-05-22 | 630-909-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2006-05-22 | 630-909-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2006-05-22 | 630-909-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2005-12-27 | 630-991-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2005-12-27 | 630-991-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2005-11-23 | 630-551-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OSWEGO | IL |
| 2005-11-10 | 630-882-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | YORKVILLE | IL |
| 2005-06-29 | 630-598-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2005-06-29 | 630-598-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2005-06-29 | 630-598-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2004-10-21 | 630-517-1XXX | 1000–1999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2004-08-24 | 630-580-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2003-12-19 | 630-388-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | NAPERVILLE | IL |
| 2003-06-25 | 630-821-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WARRENVL | IL |
| 2003-04-15 | 630-824-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2003-04-15 | 630-824-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2003-02-13 | 630-384-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2003-02-13 | 630-384-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2003-01-31 | 630-956-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELMHURST | IL |
| 2003-01-31 | 630-956-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELMHURST | IL |
| 2003-01-31 | 630-956-9XXX | 9000–9999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELMHURST | IL |
| 2003-01-08 | 630-468-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2003-01-03 | 630-388-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | NAPERVILLE | IL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.