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
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Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-08-23 | 973-987-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | MT VIEW | NJ |
| 2014-08-07 | 973-957-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | ROCKAWAY | NJ |
| 2014-04-02 | 973-321-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | PATERSON | NJ |
| 2013-07-09 | 973-588-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | BOONTON | NJ |
| 2013-04-05 | 973-304-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | HAWTHORNE | NJ |
| 2013-03-06 | 973-506-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | W MILFORD | NJ |
| 2013-03-06 | 973-832-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | MT VIEW | NJ |
| 2012-09-28 | 973-750-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | BUTLER | NJ |
| 2012-07-19 | 973-265-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | BOONTON | NJ |
| 2011-11-21 | 973-250-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | BRANCHVL | NJ |
| 2011-11-17 | 973-552-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | MONTAGUE | NJ |
| 2011-10-21 | 973-590-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | MORRISTOWN | NJ |
| 2011-10-04 | 973-521-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | CALDWELL | NJ |
| 2011-07-29 | 973-794-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | BOONTON | NJ |
| 2011-04-22 | 973-646-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | MT VIEW | NJ |
| 2011-04-08 | 973-453-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | ROCKAWAY | NJ |
| 2011-03-25 | 973-558-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | NEWARK | NJ |
| 2009-09-23 | 973-620-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | DOVER | NJ |
| 2008-09-17 | 973-295-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | MADISON | NJ |
| 2008-06-23 | 973-310-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | HAWTHORNE | NJ |
| 2008-06-23 | 973-850-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | BUTLER | NJ |
| 2008-04-16 | 973-653-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | PATERSON | NJ |
| 2008-03-12 | 973-406-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | MT VIEW | NJ |
| 2008-02-13 | 973-520-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | MADISON | NJ |
| 2008-02-13 | 973-653-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | PATERSON | NJ |
| 2008-02-06 | 973-665-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | CHATHAM | NJ |
| 2008-01-23 | 973-856-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | NEWARK | NJ |
| 2007-11-26 | 973-288-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | HOPATCONG | NJ |
| 2007-11-26 | 973-638-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | LITTLE FLS | NJ |
| 2007-11-15 | 973-798-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | NUTLEY | NJ |
| 2007-11-08 | 973-272-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | PASSAIC | NJ |
| 2007-11-08 | 973-433-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | VERONA | NJ |
| 2007-10-19 | 973-240-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | WHIPPANY | NJ |
| 2007-09-06 | 973-234-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | HOPATCONG | NJ |
| 2007-09-06 | 973-339-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | LITTLE FLS | NJ |
| 2007-09-06 | 973-917-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | BOONTON | NJ |
| 2007-09-06 | 973-917-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | BOONTON | NJ |
| 2007-08-24 | 973-513-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | POMPTONLKS | NJ |
| 2007-08-24 | 973-782-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | PATERSON | NJ |
| 2007-08-24 | 973-782-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | PATERSON | NJ |
| 2007-08-24 | 973-782-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | PATERSON | NJ |
| 2007-08-24 | 973-859-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | PASSAIC | NJ |
| 2007-08-24 | 973-874-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | NEWFOUNDLD | NJ |
| 2007-08-24 | 973-894-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | PASSAIC | NJ |
| 2007-08-23 | 973-206-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | MORRISTOWN | NJ |
| 2007-08-23 | 973-588-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | BOONTON | NJ |
| 2007-08-23 | 973-732-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | NEWARK | NJ |
| 2007-08-23 | 973-869-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | ERSKINELKS | NJ |
| 2007-08-07 | 973-270-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | MORRISTOWN | NJ |
| 2007-08-07 | 973-304-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | HAWTHORNE | 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.