NumberResearchRecent thousands-block assignments
3 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, last 30 days — NPA 847
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 |
|---|---|---|---|---|---|---|---|
| 2001-10-12 | 847-904-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GLENVIEW | IL |
| 2001-10-11 | 847-510-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | GLENVIEW | IL |
| 2001-10-10 | 847-654-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | PALATINE | IL |
| 2001-10-01 | 847-580-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DEERFIELD | IL |
| 2001-09-27 | 847-531-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELGIN | IL |
| 2001-09-27 | 847-531-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELGIN | IL |
| 2001-09-21 | 847-388-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | MUNDELEIN | IL |
| 2001-09-21 | 847-416-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WAUCONDA | IL |
| 2001-09-21 | 847-629-9XXX | 9000–9999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | FOX LAKE | IL |
| 2001-09-21 | 847-829-9XXX | 9000–9999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | CARY | IL |
| 2001-09-21 | 847-892-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLENCOE | IL |
| 2001-09-21 | 847-904-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLENVIEW | IL |
| 2001-09-21 | 847-906-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WILMETTE | IL |
| 2001-09-21 | 847-907-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | PALATINE | IL |
| 2001-09-21 | 847-944-9XXX | 9000–9999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROSELLE | IL |
| 2001-09-07 | 847-626-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | SKOKIE | IL |
| 2001-08-28 | 847-851-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DUNDEE | IL |
| 2001-08-27 | 847-719-1XXX | 1000–1999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LAKEZURICH | IL |
| 2001-08-27 | 847-719-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LAKEZURICH | IL |
| 2001-08-27 | 847-719-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LAKEZURICH | IL |
| 2001-08-27 | 847-719-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LAKEZURICH | IL |
| 2001-08-27 | 847-719-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LAKEZURICH | IL |
| 2001-08-16 | 847-627-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DESPLAINES | IL |
| 2001-07-31 | 847-313-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | NORTHBROOK | IL |
| 2001-07-20 | 847-246-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ZION | IL |
| 2001-07-20 | 847-260-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | FRANKLINPK | IL |
| 2001-07-20 | 847-270-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ROUND LAKE | IL |
| 2001-07-20 | 847-377-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | WAUKEGAN | IL |
| 2001-07-20 | 847-539-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | DESPLAINES | IL |
| 2001-07-20 | 847-745-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | SKOKIE | IL |
| 2001-07-20 | 847-947-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | WHEELING | IL |
| 2001-07-12 | 847-856-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WAUKEGAN | IL |
| 2001-06-15 | 847-531-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELGIN | IL |
| 2001-06-15 | 847-531-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELGIN | IL |
| 2001-06-04 | 847-756-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BARRINGTON | IL |
| 2001-05-28 | 847-783-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DUNDEE | IL |
| 2001-05-28 | 847-783-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DUNDEE | IL |
| 2001-05-28 | 847-979-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELK GROVE | IL |
| 2001-05-21 | 847-377-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | WAUKEGAN | IL |
| 2001-05-11 | 847-984-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LIBERTYVL | IL |
| 2001-04-30 | 847-779-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | SKOKIE | IL |
| 2001-04-26 | 847-521-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | NORTHBROOK | IL |
| 2001-04-26 | 847-596-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | WAUKEGAN | IL |
| 2001-04-19 | 847-285-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2001-04-19 | 847-285-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2001-04-19 | 847-285-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2001-04-19 | 847-285-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2001-04-19 | 847-285-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2001-04-19 | 847-285-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2001-04-19 | 847-307-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LAKEZURICH | 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.