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 347
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 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 |
|---|---|---|---|---|---|---|---|
| 2012-09-28 | 347-947-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2012-03-05 | 347-947-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2011-09-23 | 347-955-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2011-09-23 | 347-955-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2011-09-22 | 347-947-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2011-09-01 | 347-980-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2011-07-01 | 347-918-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2011-07-01 | 347-918-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2011-03-28 | 347-915-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2011-03-28 | 347-915-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2011-03-28 | 347-915-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2011-03-24 | 347-913-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2011-03-18 | 347-899-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2010-08-27 | 347-384-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2010-08-23 | 347-378-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2010-05-04 | 347-318-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2010-03-12 | 347-305-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2010-03-12 | 347-770-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2010-03-12 | 347-770-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-07-16 | 347-498-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-06-23 | 347-462-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN07 | NY |
| 2008-06-04 | 347-985-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-06-04 | 347-985-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-04-07 | 347-295-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-04-07 | 347-295-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-04-07 | 347-295-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-04-07 | 347-295-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-03-19 | 347-577-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-03-19 | 347-577-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-03-19 | 347-577-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-03-19 | 347-577-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-03-12 | 347-554-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN07 | NY |
| 2008-03-12 | 347-843-0XXX | 0000–0999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2008-03-11 | 347-270-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-02-20 | 347-843-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2008-02-20 | 347-843-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2008-02-20 | 347-843-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2008-02-07 | 347-964-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN05 | NY |
| 2008-01-25 | 347-269-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-01-25 | 347-269-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-01-25 | 347-269-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-01-25 | 347-269-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-01-25 | 347-271-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-01-25 | 347-271-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
| 2008-01-25 | 347-533-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-01-25 | 347-533-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-01-25 | 347-533-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-01-25 | 347-533-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-01-25 | 347-533-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN06 | NY |
| 2008-01-25 | 347-820-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | NWYRCYZN03 | NY |
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.