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 |
|---|---|---|---|---|---|---|---|
| 2000-10-19 | 630-276-7XXX | 7000–7999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | NAPERVILLE | IL |
| 2000-10-19 | 630-551-9XXX | 9000–9999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | OSWEGO | IL |
| 2000-10-13 | 630-463-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GENEVA | IL |
| 2000-10-13 | 630-827-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LOMBARD | IL |
| 2000-10-13 | 630-827-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LOMBARD | IL |
| 2000-10-13 | 630-827-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LOMBARD | IL |
| 2000-08-31 | 630-706-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | HINSDALE | IL |
| 2000-08-30 | 630-259-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2000-08-30 | 630-797-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ST CHARLES | IL |
| 2000-08-17 | 630-366-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | HINSDALE | IL |
| 2000-08-17 | 630-463-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GENEVA | IL |
| 2000-08-17 | 630-818-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | W CHICAGO | IL |
| 2000-08-17 | 630-821-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | WARRENVL | IL |
| 2000-08-03 | 630-324-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DOWNERSGRV | IL |
| 2000-08-01 | 630-318-9XXX | 9000–9999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | BIG ROCK | IL |
| 2000-08-01 | 630-324-1XXX | 1000–1999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | DOWNERSGRV | IL |
| 2000-08-01 | 630-723-3XXX | 3000–3999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | AURORA | IL |
| 2000-08-01 | 630-938-5XXX | 5000–5999 | Assigned | FIRST COMMUNICATIONS, LLC | 460K | GENEVA | IL |
| 2000-07-24 | 630-706-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2000-06-27 | 630-534-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | GLEN ELLYN | IL |
| 2000-06-27 | 630-576-2XXX | 2000–2999 | Assigned | ILLINOIS BELL TEL CO | 9329 | LOMBARD | IL |
| 2000-06-16 | 630-649-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | NAPERVILLE | IL |
| 2000-06-16 | 630-649-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | NAPERVILLE | IL |
| 2000-06-16 | 630-706-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2000-06-16 | 630-909-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2000-06-16 | 630-909-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | WHEATON | IL |
| 2000-05-30 | 630-318-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BIG ROCK | IL |
| 2000-05-25 | 630-379-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | ELMHURST | IL |
| 2000-05-24 | 630-706-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2000-05-11 | 630-614-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | WHEATON | IL |
| 2000-05-08 | 630-754-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL | 7196 | LEMONT | IL |
| 2000-04-24 | 630-324-3XXX | 3000–3999 | Assigned | ILLINOIS BELL TEL CO | 9329 | DOWNERSGRV | IL |
| 2000-04-24 | 630-438-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ITASCA | IL |
| 2000-04-12 | 630-671-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | ROSELLE | IL |
| 2000-04-07 | 630-385-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | YORKVILLE | IL |
| 2000-04-07 | 630-938-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | GENEVA | IL |
| 2000-04-03 | 630-324-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DOWNERSGRV | IL |
| 2000-03-30 | 630-823-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | BARTLETT | IL |
| 2000-03-09 | 630-872-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ROSELLE | IL |
| 2000-03-05 | 630-388-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | NAPERVILLE | IL |
| 2000-02-29 | 630-446-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | GLEN ELLYN | IL |
| 2000-02-28 | 630-672-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | ROSELLE | IL |
| 2000-02-25 | 630-324-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DOWNERSGRV | IL |
| 2000-02-25 | 630-324-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | DOWNERSGRV | IL |
| 2000-02-14 | 630-891-7XXX | 7000–7999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 2000-01-18 | 630-318-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | BIG ROCK | IL |
| 1999-11-16 | 630-938-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | GENEVA | IL |
| 1999-11-15 | 630-891-4XXX | 4000–4999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 1999-09-16 | 630-891-5XXX | 5000–5999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | IL |
| 1999-09-16 | 630-891-6XXX | 6000–6999 | Assigned | ILLINOIS BELL TEL CO | 9329 | HINSDALE | 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.