NumberResearchRecent thousands-block assignments
0 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, all time — NPA 847
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-10-31 | 847-871-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELK GROVE | IL |
| 2015-06-10 | 847-748-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HIGHLANDPK | IL |
| 2013-08-27 | 847-794-0XXX | 0000–0999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | PALATINE | IL |
| 2011-07-06 | 847-979-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELK GROVE | IL |
| 2010-10-19 | 847-610-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROSELLE | IL |
| 2010-09-15 | 847-396-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DUNDEE | IL |
| 2010-06-15 | 847-837-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | MUNDELEIN | IL |
| 2009-12-29 | 847-745-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | SKOKIE | IL |
| 2009-10-06 | 847-586-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DUNDEE | IL |
| 2009-08-21 | 847-551-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DUNDEE | IL |
| 2009-02-06 | 847-810-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | LAKEFOREST | IL |
| 2009-01-06 | 847-496-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | PALATINE | IL |
| 2008-12-16 | 847-834-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLENVIEW | IL |
| 2008-12-16 | 847-916-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | FRANKLINPK | IL |
| 2008-09-08 | 847-905-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | EVANSTON | IL |
| 2008-06-24 | 847-264-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELK GROVE | IL |
| 2008-04-09 | 847-581-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | SKOKIE | IL |
| 2008-03-21 | 847-725-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELK GROVE | IL |
| 2007-11-08 | 847-201-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROUND LAKE | IL |
| 2007-11-08 | 847-474-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | CARY | IL |
| 2007-11-08 | 847-629-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | FOX LAKE | IL |
| 2007-09-14 | 847-403-0XXX | 0000–0999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WHEELING | IL |
| 2007-01-15 | 847-563-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | EVANSTON | IL |
| 2006-10-26 | 847-427-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELK GROVE | IL |
| 2006-09-14 | 847-897-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NORTHBROOK | IL |
| 2006-08-16 | 847-257-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DESPLAINES | IL |
| 2006-08-16 | 847-410-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | SKOKIE | IL |
| 2006-08-16 | 847-595-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | BENSENVL | IL |
| 2006-07-03 | 847-453-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HAMPSHIRE | IL |
| 2006-04-28 | 847-664-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NORTHBROOK | IL |
| 2006-04-25 | 847-499-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WHEELING | IL |
| 2006-04-25 | 847-930-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ELGIN | IL |
| 2006-03-27 | 847-783-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DUNDEE | IL |
| 2006-03-27 | 847-851-0XXX | 0000–0999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DUNDEE | IL |
| 2005-10-07 | 847-405-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2005-09-01 | 847-653-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | PARK RIDGE | IL |
| 2005-08-25 | 847-730-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLENVIEW | IL |
| 2005-08-15 | 847-730-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLENVIEW | IL |
| 2005-07-27 | 847-720-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | PARK RIDGE | IL |
| 2005-06-22 | 847-580-9XXX | 9000–9999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DEERFIELD | IL |
| 2005-05-25 | 847-246-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ZION | IL |
| 2005-05-18 | 847-469-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WAUCONDA | IL |
| 2005-02-23 | 847-246-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ZION | IL |
| 2005-02-23 | 847-260-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | FRANKLINPK | IL |
| 2005-02-23 | 847-305-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ARLIGTNHTS | IL |
| 2005-02-23 | 847-324-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | SKOKIE | IL |
| 2005-02-23 | 847-403-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WHEELING | IL |
| 2005-02-23 | 847-665-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GRAYSLAKE | IL |
| 2005-02-23 | 847-784-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WINNETKA | IL |
| 2005-02-23 | 847-886-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROUND LAKE | 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.