NumberResearchRecent thousands-block assignments
22 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, last 30 days — NPA 224
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-04-07 | 224-875-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ELK GROVE | IL |
| 2005-04-06 | 224-220-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DESPLAINES | IL |
| 2005-04-06 | 224-238-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ELGIN | IL |
| 2005-03-31 | 224-366-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ELK GROVE | IL |
| 2005-03-28 | 224-538-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WAUKEGAN | IL |
| 2005-03-22 | 224-515-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DEERFIELD | IL |
| 2005-03-16 | 224-610-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUKEGAN | IL |
| 2005-03-15 | 224-543-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | HALF DAY | IL |
| 2005-03-15 | 224-543-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | HALF DAY | IL |
| 2005-03-15 | 224-778-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | MUNDELEIN | IL |
| 2005-03-09 | 224-633-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BARRINGTON | IL |
| 2005-03-08 | 224-717-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ZION | IL |
| 2005-03-04 | 224-265-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ELK GROVE | IL |
| 2005-03-04 | 224-345-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ARLIGTNHTS | IL |
| 2005-03-04 | 224-388-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2005-03-03 | 224-333-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ALGONQUIN | IL |
| 2005-03-03 | 224-333-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ALGONQUIN | IL |
| 2005-02-28 | 224-633-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BARRINGTON | IL |
| 2005-02-28 | 224-757-5XXX | 5000–5999 | Assigned | COMCAST IP PHONE, LLC | 318J | ROUND LAKE | IL |
| 2005-02-23 | 224-207-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | LIBERTYVL | IL |
| 2005-02-23 | 224-220-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DESPLAINES | IL |
| 2005-02-23 | 224-333-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | ALGONQUIN | IL |
| 2005-02-23 | 224-377-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HALF DAY | IL |
| 2005-02-23 | 224-377-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HALF DAY | IL |
| 2005-02-23 | 224-420-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | EVANSTON | IL |
| 2005-02-23 | 224-520-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROSELLE | IL |
| 2005-02-23 | 224-610-1XXX | 1000–1999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUKEGAN | IL |
| 2005-02-23 | 224-610-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUKEGAN | IL |
| 2005-02-23 | 224-610-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUKEGAN | IL |
| 2005-02-23 | 224-610-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUKEGAN | IL |
| 2005-02-23 | 224-610-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUKEGAN | IL |
| 2005-02-23 | 224-610-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUKEGAN | IL |
| 2005-02-23 | 224-643-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | LAKE VILLA | IL |
| 2005-02-18 | 224-388-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2005-02-17 | 224-632-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DEERFIELD | IL |
| 2005-02-15 | 224-238-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELGIN | IL |
| 2005-02-08 | 224-430-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | WAUKEGAN | IL |
| 2005-02-07 | 224-293-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DUNDEE | IL |
| 2005-02-07 | 224-765-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | HIGHLANDPK | IL |
| 2005-02-04 | 224-610-0XXX | 0000–0999 | Assigned | COMCAST IP PHONE, LLC | 318J | WAUKEGAN | IL |
| 2005-01-29 | 224-265-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ELK GROVE | IL |
| 2005-01-26 | 224-238-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELGIN | IL |
| 2005-01-26 | 224-588-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | WHEELING | IL |
| 2005-01-25 | 224-521-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | GLENVIEW | IL |
| 2005-01-19 | 224-361-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DESPLAINES | IL |
| 2005-01-14 | 224-210-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2005-01-13 | 224-210-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2005-01-11 | 224-265-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ELK GROVE | IL |
| 2005-01-03 | 224-210-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2004-12-27 | 224-267-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ANTIOCH | IL |
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.