NumberResearchRecent thousands-block assignments
19 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, 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 |
|---|---|---|---|---|---|---|---|
| 2010-07-16 | 417-553-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | JOPLIN | MO |
| 2010-07-16 | 417-553-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | JOPLIN | MO |
| 2010-07-16 | 417-719-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | SPRINGFLD | MO |
| 2010-07-16 | 417-719-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | SPRINGFLD | MO |
| 2010-07-16 | 417-719-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | SPRINGFLD | MO |
| 2010-07-14 | 417-501-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SPRINGFLD | MO |
| 2010-07-14 | 417-501-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SPRINGFLD | MO |
| 2010-07-14 | 417-501-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SPRINGFLD | MO |
| 2010-07-14 | 417-501-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SPRINGFLD | MO |
| 2010-07-02 | 417-843-7XXX | 7000–7999 | Assigned | MCC TELEPHONY LLC | 593K | LIBERAL | MO |
| 2010-06-29 | 417-213-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | BRANSON | MO |
| 2010-06-29 | 417-213-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | BRANSON | MO |
| 2010-06-28 | 417-405-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | PURDY | MO |
| 2010-06-28 | 417-638-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | STARK CITY | MO |
| 2010-05-26 | 417-708-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | SPRINGFLD | MO |
| 2010-05-25 | 417-559-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | BRANSON | MO |
| 2010-05-20 | 417-501-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SPRINGFLD | MO |
| 2010-05-20 | 417-501-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SPRINGFLD | MO |
| 2010-05-20 | 417-501-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | SPRINGFLD | MO |
| 2010-05-20 | 417-548-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | SARCOXIE | MO |
| 2010-05-19 | 417-593-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BRANSON | MO |
| 2010-05-18 | 417-935-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | SEYMOUR | MO |
| 2010-05-05 | 417-266-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | BRANSON | MO |
| 2010-05-03 | 417-520-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | SPRINGFLD | MO |
| 2010-05-03 | 417-521-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | SPRINGFLD | MO |
| 2010-05-03 | 417-655-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | SPRINGFLD | MO |
| 2010-05-03 | 417-685-3XXX | 3000–3999 | Assigned | MCC TELEPHONY LLC | 593K | WILLARD | MO |
| 2010-05-03 | 417-717-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | WEBB CITY | MO |
| 2010-05-03 | 417-736-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | STRAFFORD | MO |
| 2010-05-03 | 417-994-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | WALNUT GRV | MO |
| 2010-04-29 | 417-201-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | BRADLEYVL | MO |
| 2010-04-29 | 417-203-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | CRANE | MO |
| 2010-04-29 | 417-232-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | LOCKWOOD | MO |
| 2010-04-29 | 417-250-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | AVA | MO |
| 2010-04-29 | 417-251-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | FORSYTH | MO |
| 2010-04-29 | 417-254-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | CABOOL | MO |
| 2010-04-29 | 417-289-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | BILLINGS | MO |
| 2010-04-29 | 417-310-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | CARTHAGE | MO |
| 2010-04-29 | 417-316-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | MT VERNON | MO |
| 2010-04-29 | 417-323-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | ASH GROVE | MO |
| 2010-04-29 | 417-394-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | JASPER | MO |
| 2010-04-29 | 417-535-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | EVERTON | MO |
| 2010-04-29 | 417-551-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | OZARK | MO |
| 2010-04-29 | 417-553-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | JOPLIN | MO |
| 2010-04-29 | 417-554-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | MANSFIELD | MO |
| 2010-04-29 | 417-630-0XXX | 0000–0999 | Assigned | MCC TELEPHONY LLC | 593K | MARSHFIELD | MO |
| 2010-04-29 | 417-637-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | GREENFIELD | MO |
| 2010-04-29 | 417-649-5XXX | 5000–5999 | Assigned | MCC TELEPHONY LLC | 593K | CARL JCT | MO |
| 2010-04-29 | 417-671-8XXX | 8000–8999 | Assigned | MCC TELEPHONY LLC | 593K | CASSVILLE | MO |
| 2010-04-29 | 417-739-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | KIMBELNGCY | MO |
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.