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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2002-12-04 | 224-805-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2002-12-04 | 224-805-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2002-12-04 | 224-805-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2002-12-04 | 224-805-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2002-11-26 | 224-521-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GLENVIEW | IL |
| 2002-10-01 | 224-632-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DEERFIELD | IL |
| 2002-09-30 | 224-293-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DUNDEE | IL |
| 2002-09-25 | 224-698-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2002-09-25 | 224-698-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2002-09-25 | 224-698-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2002-09-25 | 224-698-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2002-09-25 | 224-698-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2002-09-25 | 224-772-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUKEGAN | IL |
| 2002-09-04 | 224-232-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ARLIGTNHTS | IL |
| 2002-09-04 | 224-232-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ARLIGTNHTS | IL |
| 2002-09-04 | 224-232-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ARLIGTNHTS | IL |
| 2002-09-04 | 224-232-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ARLIGTNHTS | IL |
| 2002-09-04 | 224-765-1XXX | 1000–1999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HIGHLANDPK | IL |
| 2002-09-04 | 224-765-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HIGHLANDPK | IL |
| 2002-06-27 | 224-643-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LAKE VILLA | 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.