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 973
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 |
|---|---|---|---|---|---|---|---|
| 2019-05-07 | 973-447-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NUTLEY | NJ |
| 2019-05-07 | 973-447-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NUTLEY | NJ |
| 2018-01-29 | 973-828-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | MORRISTOWN | NJ |
| 2017-11-24 | 973-737-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | VERNON | NJ |
| 2017-11-24 | 973-749-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | UPGRENWDLK | NJ |
| 2016-08-02 | 973-422-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | LIVINGSTON | NJ |
| 2015-09-23 | 973-840-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | CALDWELL | NJ |
| 2015-08-25 | 973-828-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | MORRISTOWN | NJ |
| 2015-08-06 | 973-755-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NEWARK | NJ |
| 2015-06-04 | 973-755-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NEWARK | NJ |
| 2015-04-09 | 973-559-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | VERONA | NJ |
| 2015-03-04 | 973-917-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | BOONTON | NJ |
| 2015-02-24 | 973-786-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | ANDOVER | NJ |
| 2014-09-29 | 973-755-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NEWARK | NJ |
| 2014-09-22 | 973-577-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | LIVINGSTON | NJ |
| 2014-07-25 | 973-755-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NEWARK | NJ |
| 2014-05-07 | 973-512-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | LAKEMOHAWK | NJ |
| 2014-03-31 | 973-604-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | BELLEVILLE | NJ |
| 2014-03-31 | 973-721-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | SUSSEX | NJ |
| 2013-07-09 | 973-434-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | WHIPPANY | NJ |
| 2013-06-26 | 973-500-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | ANDOVER | NJ |
| 2013-03-07 | 973-949-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | HAWTHORNE | NJ |
| 2012-11-07 | 973-587-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | MT VIEW | NJ |
| 2012-05-23 | 973-435-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | LITTLE FLS | NJ |
| 2012-05-16 | 973-814-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NEWFOUNDLD | NJ |
| 2012-03-01 | 973-816-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | PASSAIC | NJ |
| 2012-02-15 | 973-453-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | ROCKAWAY | NJ |
| 2012-02-09 | 973-261-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | MADISON | NJ |
| 2012-02-09 | 973-542-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NUTLEY | NJ |
| 2011-12-29 | 973-577-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | LIVINGSTON | NJ |
| 2011-12-29 | 973-846-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | W MILFORD | NJ |
| 2011-10-14 | 973-435-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | LITTLE FLS | NJ |
| 2011-10-06 | 973-810-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | HOPATCONG | NJ |
| 2011-03-08 | 973-996-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | SO ORANGE | NJ |
| 2010-11-08 | 973-321-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | PATERSON | NJ |
| 2010-10-26 | 973-435-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | LITTLE FLS | NJ |
| 2010-10-26 | 973-577-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | LIVINGSTON | NJ |
| 2010-01-21 | 973-665-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | CHATHAM | NJ |
| 2008-09-23 | 973-250-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | BRANCHVL | NJ |
| 2008-08-01 | 973-771-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | BLOOMFIELD | NJ |
| 2008-05-07 | 973-587-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | MT VIEW | NJ |
| 2008-05-05 | 973-804-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NETCONG | NJ |
| 2008-05-05 | 973-862-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | NEWTON | NJ |
| 2008-04-11 | 973-510-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | PASSAIC | NJ |
| 2008-02-14 | 973-500-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | ANDOVER | NJ |
| 2008-02-05 | 973-434-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | WHIPPANY | NJ |
| 2008-02-04 | 973-510-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | PASSAIC | NJ |
| 2008-01-31 | 973-309-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | CHATHAM | NJ |
| 2008-01-31 | 973-309-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | CHATHAM | NJ |
| 2008-01-31 | 973-321-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - NJ | 4804 | PATERSON | NJ |
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.