NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 224
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-10-18 | 224-528-0XXX | 0000–0999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROSELLE | IL |
| 2018-03-07 | 224-282-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NORTHBROOK | IL |
| 2018-01-31 | 224-204-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | EVANSTON | IL |
| 2015-12-17 | 224-998-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | SKOKIE | IL |
| 2015-07-28 | 224-661-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLENVIEW | IL |
| 2015-06-10 | 224-435-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLENVIEW | IL |
| 2015-01-26 | 224-479-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NORTHBROOK | IL |
| 2015-01-12 | 224-662-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | LAKEZURICH | IL |
| 2014-04-30 | 224-655-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | BARRINGTON | IL |
| 2012-07-02 | 224-251-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | SKOKIE | IL |
| 2012-06-08 | 224-206-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | LIBERTYVL | IL |
| 2012-05-03 | 224-254-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DESPLAINES | IL |
| 2012-03-26 | 224-484-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DUNDEE | IL |
| 2011-05-26 | 224-227-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELGIN | IL |
| 2011-05-26 | 224-227-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELGIN | IL |
| 2009-07-29 | 224-676-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WHEELING | IL |
| 2008-08-15 | 224-387-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ARLIGTNHTS | IL |
| 2008-07-25 | 224-387-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ARLIGTNHTS | IL |
| 2008-06-20 | 224-260-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLENVIEW | IL |
| 2008-05-19 | 224-353-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROSELLE | IL |
| 2008-01-15 | 224-764-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ARLIGTNHTS | IL |
| 2007-11-08 | 224-654-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HUNTLEY | IL |
| 2007-01-15 | 224-232-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ARLIGTNHTS | IL |
| 2007-01-15 | 224-552-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | LAKEFOREST | IL |
| 2006-11-28 | 224-653-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROSELLE | IL |
| 2006-10-11 | 224-778-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | MUNDELEIN | IL |
| 2006-09-27 | 224-927-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NORTHBROOK | IL |
| 2006-09-27 | 224-927-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NORTHBROOK | IL |
| 2006-09-27 | 224-927-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NORTHBROOK | IL |
| 2006-09-27 | 224-927-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NORTHBROOK | IL |
| 2006-08-16 | 224-535-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELGIN | IL |
| 2006-07-06 | 224-353-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROSELLE | IL |
| 2006-07-03 | 224-603-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ANTIOCH | IL |
| 2006-07-03 | 224-730-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ZION | IL |
| 2006-04-25 | 224-333-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ALGONQUIN | IL |
| 2006-04-25 | 224-420-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | EVANSTON | IL |
| 2006-04-25 | 224-643-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | LAKE VILLA | IL |
| 2006-04-25 | 224-717-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ZION | IL |
| 2006-04-17 | 224-533-0XXX | 0000–0999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-17 | 224-533-9XXX | 9000–9999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2006-04-05 | 224-233-0XXX | 0000–0999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | SKOKIE | IL |
| 2006-04-05 | 224-233-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | SKOKIE | IL |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.