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
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2015-12-01 | 847-595-9XXX | 9000–9999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | BENSENVL | IL |
| 2010-07-30 | 847-518-5XXX | 5000–5999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | PARK RIDGE | IL |
| 2007-07-05 | 847-499-0XXX | 0000–0999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | WHEELING | IL |
| 2007-07-05 | 847-621-9XXX | 9000–9999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | ELK GROVE | IL |
| 2004-09-23 | 847-348-4XXX | 4000–4999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | PALATINE | IL |
| 2004-08-10 | 847-904-8XXX | 8000–8999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | GLENVIEW | IL |
| 2002-12-20 | 847-929-0XXX | 0000–0999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | SKOKIE | IL |
| 2002-10-02 | 847-484-6XXX | 6000–6999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | WHEELING | IL |
| 2002-08-21 | 847-930-1XXX | 1000–1999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | ELGIN | IL |
| 2000-12-21 | 847-434-6XXX | 6000–6999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | ELK GROVE | IL |
| 2000-12-21 | 847-463-6XXX | 6000–6999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | ARLIGTNHTS | IL |
| 1999-03-19 | 847-327-8XXX | 8000–8999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | LIBERTYVL | IL |
| 1999-03-19 | 847-425-0XXX | 0000–0999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | EVANSTON | IL |
| 1999-03-19 | 847-513-8XXX | 8000–8999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | NORTHBROOK | IL |
| 1999-03-19 | 847-603-0XXX | 0000–0999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | ANTIOCH | IL |
| 1999-03-19 | 847-709-9XXX | 9000–9999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | ELK GROVE | IL |
| 1999-03-19 | 847-739-8XXX | 8000–8999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | LAKEFOREST | IL |
| 1999-03-19 | 847-939-0XXX | 0000–0999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | PARK RIDGE | 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.