NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 417
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 |
|---|---|---|---|---|---|---|---|
| 2025-12-19 | 417-382-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | JOPLIN | MO |
| 2024-02-12 | 417-216-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | GALENA | MO |
| 2024-02-12 | 417-969-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | CAPE FAIR | MO |
| 2021-03-31 | 417-441-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | SPARTA | MO |
| 2020-02-06 | 417-677-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | FORSYTH | MO |
| 2014-04-30 | 417-731-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | OZARK | MO |
| 2014-02-12 | 417-308-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | AURORA | MO |
| 2014-02-04 | 417-242-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | MARIONVL | MO |
| 2014-02-04 | 417-249-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | KIMBELNGCY | MO |
| 2014-02-04 | 417-272-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | REEDS SPG | MO |
| 2014-02-04 | 417-302-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | ROCKAWYBCH | MO |
| 2014-02-04 | 417-313-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | CARTHAGE | MO |
| 2014-02-04 | 417-355-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | NEOSHO | MO |
| 2014-02-04 | 417-386-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | BRANSON W | MO |
| 2014-02-04 | 417-392-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | WEBB CITY | MO |
| 2014-02-04 | 417-476-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | PIERCECITY | MO |
| 2014-02-04 | 417-498-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | VERONA | MO |
| 2014-02-04 | 417-587-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | HIGHLANDVL | MO |
| 2014-02-04 | 417-731-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | OZARK | MO |
| 2014-02-04 | 417-731-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | OZARK | MO |
| 2014-02-04 | 417-772-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | MONETT | MO |
| 2013-11-07 | 417-320-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | BRANSON | MO |
| 2013-11-07 | 417-320-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | BRANSON | MO |
| 2013-11-07 | 417-320-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | BRANSON | MO |
| 2013-11-07 | 417-320-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | BRANSON | MO |
| 2013-11-07 | 417-320-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | BRANSON | MO |
| 2013-11-07 | 417-320-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | BRANSON | MO |
| 2013-11-07 | 417-494-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | NIXA | MO |
| 2013-11-07 | 417-494-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | NIXA | MO |
| 2012-03-16 | 417-312-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | NEOSHO | MO |
| 2010-12-21 | 417-714-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | NIXA | MO |
| 2008-12-11 | 417-498-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | VERONA | MO |
| 2008-07-23 | 417-641-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | HIGHLANDVL | MO |
| 2007-08-27 | 417-237-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | CARTHAGE | MO |
| 2006-12-29 | 417-476-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | PIERCECITY | MO |
| 2006-12-04 | 417-440-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | AURORA | MO |
| 2006-12-04 | 417-463-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | MARIONVL | MO |
| 2006-12-04 | 417-772-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | MONETT | MO |
| 2006-08-28 | 417-386-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | BRANSON W | MO |
| 2006-08-18 | 417-248-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | REEDS SPG | MO |
| 2006-08-18 | 417-302-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | ROCKAWYBCH | MO |
| 2006-07-28 | 417-551-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | OZARK | MO |
| 2006-04-25 | 417-717-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | WEBB CITY | MO |
| 2005-01-31 | 417-249-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | KIMBELNGCY | MO |
| 2005-01-21 | 417-714-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | NIXA | MO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.