NumberResearchRecent thousands-block assignments
19 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, last 30 days — NPA 417
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 |
|---|---|---|---|---|---|---|---|
| 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 |
| 2014-01-28 | 417-630-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | MARSHFIELD | MO |
| 2014-01-27 | 417-757-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BRANSON | MO |
| 2014-01-23 | 417-720-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | SPRINGFLD | MO |
| 2013-12-18 | 417-318-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | HOUSTON | MO |
| 2013-12-12 | 417-228-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EFORTSCOTT | MO |
| 2013-11-11 | 417-556-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-11 | 417-556-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2013-11-08 | 417-248-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | REEDS SPG | MO |
| 2013-11-08 | 417-392-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | WEBB CITY | 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 |
| 2013-10-30 | 417-955-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | STOCKTON | MO |
| 2013-10-25 | 417-248-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | REEDS SPG | MO |
| 2013-10-25 | 417-855-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | WILLOW SPG | MO |
| 2013-10-17 | 417-691-5XXX | 5000–5999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | JOPLIN | MO |
| 2013-10-17 | 417-691-6XXX | 6000–6999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | JOPLIN | MO |
| 2013-10-14 | 417-583-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CLEVER | MO |
| 2013-10-14 | 417-736-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | STRAFFORD | MO |
| 2013-10-03 | 417-454-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | NEOSHO | MO |
| 2013-10-02 | 417-313-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | CARTHAGE | MO |
| 2013-10-02 | 417-450-0XXX | 0000–0999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SPRINGFLD | MO |
| 2013-10-02 | 417-450-2XXX | 2000–2999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SPRINGFLD | 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.