NumberResearchRecent thousands-block assignments
0 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, all time — NPA 847
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 |
|---|---|---|---|---|---|---|---|
| 2017-06-01 | 847-585-9XXX | 9000–9999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ROSELLE | IL |
| 2016-09-19 | 847-610-1XXX | 1000–1999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ROSELLE | IL |
| 2014-01-29 | 847-598-8XXX | 8000–8999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ROSELLE | IL |
| 2013-12-13 | 847-744-7XXX | 7000–7999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ROSELLE | IL |
| 2013-08-29 | 847-582-6XXX | 6000–6999 | Assigned | ACCESS ONE, INC. - IL | 5447 | LAKEFOREST | IL |
| 2012-03-21 | 847-407-3XXX | 3000–3999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ROSELLE | IL |
| 2012-03-21 | 847-745-7XXX | 7000–7999 | Assigned | ACCESS ONE, INC. - IL | 5447 | SKOKIE | IL |
| 2011-06-10 | 847-252-0XXX | 0000–0999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ROSELLE | IL |
| 2010-07-01 | 847-807-2XXX | 2000–2999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ROSELLE | IL |
| 2008-08-25 | 847-725-2XXX | 2000–2999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ELK GROVE | IL |
| 2008-06-12 | 847-527-1XXX | 1000–1999 | Assigned | ACCESS ONE, INC. - IL | 5447 | DEERFIELD | IL |
| 2006-07-07 | 847-393-1XXX | 1000–1999 | Assigned | ACCESS ONE, INC. - IL | 5447 | MUNDELEIN | IL |
| 2006-07-07 | 847-464-3XXX | 3000–3999 | Assigned | ACCESS ONE, INC. - IL | 5447 | PLATO CTR | IL |
| 2006-07-07 | 847-792-2XXX | 2000–2999 | Assigned | ACCESS ONE, INC. - IL | 5447 | HAMPSHIRE | IL |
| 2006-07-07 | 847-999-9XXX | 9000–9999 | Assigned | ACCESS ONE, INC. - IL | 5447 | WINNETKA | IL |
| 2006-06-22 | 847-773-2XXX | 2000–2999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ITASCA | IL |
| 2006-02-15 | 847-232-2XXX | 2000–2999 | Assigned | ACCESS ONE, INC. - IL | 5447 | PARK RIDGE | IL |
| 2006-02-15 | 847-801-1XXX | 1000–1999 | Assigned | ACCESS ONE, INC. - IL | 5447 | FRANKLINPK | IL |
| 2005-12-29 | 847-231-9XXX | 9000–9999 | Assigned | ACCESS ONE, INC. - IL | 5447 | GRAYSLAKE | IL |
| 2005-12-29 | 847-246-9XXX | 9000–9999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ZION | IL |
| 2005-12-29 | 847-469-2XXX | 2000–2999 | Assigned | ACCESS ONE, INC. - IL | 5447 | WAUCONDA | IL |
| 2005-12-29 | 847-497-1XXX | 1000–1999 | Assigned | ACCESS ONE, INC. - IL | 5447 | PISTAKHLDS | IL |
| 2005-12-29 | 847-499-7XXX | 7000–7999 | Assigned | ACCESS ONE, INC. - IL | 5447 | WHEELING | IL |
| 2005-12-29 | 847-512-9XXX | 9000–9999 | Assigned | ACCESS ONE, INC. - IL | 5447 | WILMETTE | IL |
| 2005-12-29 | 847-579-6XXX | 6000–6999 | Assigned | ACCESS ONE, INC. - IL | 5447 | HIGHLANDPK | IL |
| 2005-12-29 | 847-745-6XXX | 6000–6999 | Assigned | ACCESS ONE, INC. - IL | 5447 | SKOKIE | IL |
| 2005-12-29 | 847-886-5XXX | 5000–5999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ROUND LAKE | IL |
| 2005-12-29 | 847-932-0XXX | 0000–0999 | Assigned | ACCESS ONE, INC. - IL | 5447 | LIBERTYVL | IL |
| 2005-12-13 | 847-242-7XXX | 7000–7999 | Assigned | ACCESS ONE, INC. - IL | 5447 | GLENCOE | IL |
| 2005-12-13 | 847-282-9XXX | 9000–9999 | Assigned | ACCESS ONE, INC. - IL | 5447 | DEERFIELD | IL |
| 2005-12-13 | 847-448-4XXX | 4000–4999 | Assigned | ACCESS ONE, INC. - IL | 5447 | EVANSTON | IL |
| 2005-12-13 | 847-717-8XXX | 8000–8999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ELGIN | IL |
| 2005-12-13 | 847-893-2XXX | 2000–2999 | Assigned | ACCESS ONE, INC. - IL | 5447 | BARTLETT | IL |
| 2005-12-08 | 847-238-7XXX | 7000–7999 | Assigned | ACCESS ONE, INC. - IL | 5447 | BENSENVL | IL |
| 2005-12-08 | 847-385-2XXX | 2000–2999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ARLIGTNHTS | IL |
| 2005-12-08 | 847-493-8XXX | 8000–8999 | Assigned | ACCESS ONE, INC. - IL | 5447 | DESPLAINES | IL |
| 2005-12-08 | 847-594-3XXX | 3000–3999 | Assigned | ACCESS ONE, INC. - IL | 5447 | ALGONQUIN | IL |
| 2005-12-08 | 847-783-1XXX | 1000–1999 | Assigned | ACCESS ONE, INC. - IL | 5447 | DUNDEE | 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.