NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/22/2026
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 708
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-09-25 | 708-538-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | MAYWOOD | IL |
| 2013-09-25 | 708-538-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | MAYWOOD | IL |
| 2013-09-25 | 708-538-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | MAYWOOD | IL |
| 2013-09-25 | 708-538-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | MAYWOOD | IL |
| 2012-11-20 | 708-520-0XXX | 0000–0999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-1XXX | 1000–1999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-11-20 | 708-520-9XXX | 9000–9999 | Assigned | ILLINOIS BELL TEL CO | 9329 | OAK LAWN | IL |
| 2012-05-25 | 708-617-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BELLWOOD | IL |
| 2012-05-25 | 708-617-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BELLWOOD | IL |
| 2012-05-25 | 708-617-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BELLWOOD | IL |
| 2012-05-25 | 708-617-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BELLWOOD | IL |
| 2012-05-25 | 708-617-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BELLWOOD | IL |
| 2009-07-02 | 708-232-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HARVEY | IL |
| 2009-07-02 | 708-232-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HARVEY | IL |
| 2006-09-29 | 708-688-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BROOKFIELD | IL |
| 2006-09-29 | 708-688-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BROOKFIELD | IL |
| 2005-01-18 | 708-213-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HOMEWOOD | IL |
| 2004-09-29 | 708-213-0XXX | 0000–0999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HOMEWOOD | IL |
| 2004-09-29 | 708-213-1XXX | 1000–1999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HOMEWOOD | IL |
| 2004-09-29 | 708-213-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HOMEWOOD | IL |
| 2004-09-29 | 708-213-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HOMEWOOD | IL |
| 2004-09-29 | 708-213-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HOMEWOOD | IL |
| 2004-09-29 | 708-213-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HOMEWOOD | IL |
| 2004-09-27 | 708-245-0XXX | 0000–0999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-1XXX | 1000–1999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2004-09-27 | 708-245-9XXX | 9000–9999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LA GRANGE | IL |
| 2002-12-09 | 708-845-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | TINLEYPARK | IL |
| 2002-10-21 | 708-326-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | MOKENA | IL |
| 2002-10-21 | 708-326-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | MOKENA | IL |
| 2001-05-28 | 708-272-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BLUEISLAND | IL |
| 2001-05-28 | 708-272-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BLUEISLAND | IL |
| 2001-05-28 | 708-272-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BLUEISLAND | IL |
| 2001-02-28 | 708-384-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BELLWOOD | IL |
| 2000-11-20 | 708-645-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ORLAND | IL |
| 2000-06-27 | 708-697-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | RIVERGROVE | IL |
| 2000-06-16 | 708-697-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | RIVERGROVE | IL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/22/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.