NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/25/2026
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
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-01-24 | 417-603-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SPRINGFLD | MO |
| 2019-03-20 | 417-362-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | MT VIEW | MO |
| 2019-02-18 | 417-418-0XXX | 0000–0999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2019-02-18 | 417-418-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | SPRINGFLD | MO |
| 2018-07-10 | 417-596-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | WESTPLAINS | MO |
| 2018-07-03 | 417-554-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | MANSFIELD | MO |
| 2017-12-27 | 417-952-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2015-12-08 | 417-686-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | AVA | MO |
| 2015-10-15 | 417-313-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | CARTHAGE | MO |
| 2015-09-08 | 417-671-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | CASSVILLE | MO |
| 2015-04-09 | 417-213-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | BRANSON | MO |
| 2014-01-28 | 417-630-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | MARSHFIELD | 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 |
| 2013-04-10 | 417-476-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | PIERCECITY | MO |
| 2013-03-20 | 417-635-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | MONETT | MO |
| 2012-05-07 | 417-456-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | NEOSHO | MO |
| 2012-02-16 | 417-313-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | CARTHAGE | MO |
| 2011-11-22 | 417-233-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | REPUBLIC | MO |
| 2011-11-22 | 417-283-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | NEVADA | MO |
| 2011-07-19 | 417-622-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2011-06-16 | 417-726-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
| 2010-10-12 | 417-295-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | LAMAR | MO |
| 2007-10-12 | 417-731-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | OZARK | MO |
| 2006-08-10 | 417-449-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | NIXA | MO |
| 2005-08-24 | 417-208-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7594 | JOPLIN | MO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/25/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.