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 630
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 |
|---|---|---|---|---|---|---|---|
| 2001-10-23 | 630-706-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | HINSDALE | IL |
| 2001-09-21 | 630-534-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GLEN ELLYN | IL |
| 2001-09-21 | 630-534-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GLEN ELLYN | IL |
| 2001-09-21 | 630-534-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GLEN ELLYN | IL |
| 2001-08-28 | 630-371-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | HINSDALE | IL |
| 2001-07-23 | 630-544-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | NAPERVILLE | IL |
| 2001-07-23 | 630-570-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | HINSDALE | IL |
| 2001-07-23 | 630-631-0XXX | 0000–0999 | Assigned | PAETEC ITEL, LLC | 829J | AURORA | IL |
| 2001-07-23 | 630-754-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | LEMONT | IL |
| 2001-07-23 | 630-824-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | DOWNERSGRV | IL |
| 2001-07-23 | 630-948-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | BENSENVL | IL |
| 2001-07-18 | 630-884-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | BIG ROCK | IL |
| 2001-06-04 | 630-557-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | KANEVILLE | IL |
| 2001-05-28 | 630-633-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LEMONT | IL |
| 2001-04-19 | 630-286-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2001-04-19 | 630-286-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2001-04-19 | 630-518-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | AURORA | IL |
| 2001-04-09 | 630-874-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | DOWNERSGRV | IL |
| 2001-03-12 | 630-315-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | WHEATON | IL |
| 2001-03-12 | 630-523-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | ROSELLE | IL |
| 2001-03-12 | 630-925-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | LOMBARD | IL |
| 2001-02-26 | 630-657-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WARRENVL | IL |
| 2001-02-26 | 630-657-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WARRENVL | IL |
| 2001-02-26 | 630-657-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WARRENVL | IL |
| 2001-02-25 | 630-438-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ITASCA | IL |
| 2001-02-07 | 630-225-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | WARRENVL | IL |
| 2001-02-05 | 630-388-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | NAPERVILLE | IL |
| 2001-01-16 | 630-576-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LOMBARD | IL |
| 2001-01-16 | 630-576-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LOMBARD | IL |
| 2001-01-16 | 630-576-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LOMBARD | IL |
| 2001-01-03 | 630-437-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2001-01-03 | 630-437-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2001-01-03 | 630-437-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2001-01-03 | 630-723-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | AURORA | IL |
| 2000-12-27 | 630-544-6XXX | 6000–6999 | Assigned | RCN TELECOM SERVICES OF ILLINIOS, INC. - IL | 8702 | NAPERVILLE | IL |
| 2000-12-16 | 630-388-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | NAPERVILLE | IL |
| 2000-11-17 | 630-437-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2000-11-17 | 630-437-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2000-11-17 | 630-437-8XXX | 8000–8999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2000-11-17 | 630-437-9XXX | 9000–9999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2000-10-20 | 630-315-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WHEATON | IL |
| 2000-10-20 | 630-385-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | YORKVILLE | IL |
| 2000-10-20 | 630-446-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GLEN ELLYN | IL |
| 2000-10-20 | 630-570-4XXX | 4000–4999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | HINSDALE | IL |
| 2000-10-20 | 630-593-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | BATAVIA | IL |
| 2000-10-20 | 630-594-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | BENSENVL | IL |
| 2000-10-20 | 630-625-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ITASCA | IL |
| 2000-10-20 | 630-633-2XXX | 2000–2999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | LEMONT | IL |
| 2000-10-20 | 630-657-6XXX | 6000–6999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | WARRENVL | IL |
| 2000-10-19 | 630-259-8XXX | 8000–8999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | ROSELLE | 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.