NumberResearchRecent thousands-block assignments
3 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 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 |
|---|---|---|---|---|---|---|---|
| 2002-07-22 | 847-905-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | EVANSTON | IL |
| 2002-07-03 | 847-230-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ROSELLE | IL |
| 2002-06-26 | 847-756-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BARRINGTON | IL |
| 2002-06-19 | 847-376-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DESPLAINES | IL |
| 2002-06-19 | 847-460-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DESPLAINES | IL |
| 2002-06-18 | 847-783-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DUNDEE | IL |
| 2002-06-17 | 847-901-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GLENVIEW | IL |
| 2002-06-17 | 847-901-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GLENVIEW | IL |
| 2002-05-29 | 847-313-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | NORTHBROOK | IL |
| 2002-05-29 | 847-313-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | NORTHBROOK | IL |
| 2002-05-23 | 847-385-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ARLIGTNHTS | IL |
| 2002-05-23 | 847-844-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | DUNDEE | IL |
| 2002-05-16 | 847-418-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | NORTHBROOK | IL |
| 2002-05-16 | 847-990-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LIBERTYVL | IL |
| 2002-05-16 | 847-996-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LIBERTYVL | IL |
| 2002-05-16 | 847-996-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LIBERTYVL | IL |
| 2002-04-30 | 847-447-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | FRANKLINPK | IL |
| 2002-04-30 | 847-463-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ARLIGTNHTS | IL |
| 2002-04-30 | 847-596-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WAUKEGAN | IL |
| 2002-04-30 | 847-961-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HUNTLEY | IL |
| 2002-04-30 | 847-964-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2002-04-12 | 847-603-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ANTIOCH | IL |
| 2002-04-12 | 847-978-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | PISTAKHLDS | IL |
| 2002-03-05 | 847-469-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WAUCONDA | IL |
| 2002-02-26 | 847-626-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | SKOKIE | IL |
| 2002-02-22 | 847-851-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DUNDEE | IL |
| 2002-02-22 | 847-851-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DUNDEE | IL |
| 2002-02-22 | 847-851-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF ILLINOIS, LLC - IL | 063E | DUNDEE | IL |
| 2002-02-19 | 847-321-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DESPLAINES | IL |
| 2002-02-15 | 847-301-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ROSELLE | IL |
| 2002-01-28 | 847-239-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | NORTHBROOK | IL |
| 2002-01-25 | 847-627-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DESPLAINES | IL |
| 2002-01-24 | 847-628-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELGIN | IL |
| 2002-01-24 | 847-717-0XXX | 0000–0999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELGIN | IL |
| 2002-01-24 | 847-760-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELGIN | IL |
| 2002-01-24 | 847-841-1XXX | 1000–1999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ELGIN | IL |
| 2002-01-16 | 847-876-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | HALF DAY | IL |
| 2001-12-27 | 847-626-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | SKOKIE | IL |
| 2001-11-28 | 847-756-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BARRINGTON | IL |
| 2001-11-27 | 847-463-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ARLIGTNHTS | IL |
| 2001-11-27 | 847-932-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | LIBERTYVL | IL |
| 2001-11-19 | 847-649-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DUNDEE | IL |
| 2001-11-19 | 847-881-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WINNETKA | IL |
| 2001-11-15 | 847-580-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DEERFIELD | IL |
| 2001-11-08 | 847-453-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - IL | 7136 | HAMPSHIRE | IL |
| 2001-11-08 | 847-859-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | EVANSTON | IL |
| 2001-10-31 | 847-756-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BARRINGTON | IL |
| 2001-10-23 | 847-659-0XXX | 0000–0999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HUNTLEY | IL |
| 2001-10-17 | 847-620-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | BARRINGTON | IL |
| 2001-10-15 | 847-415-9XXX | 9000–9999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HALF DAY | 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.