NumberResearchRecent thousands-block assignments
26 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 636
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 |
|---|---|---|---|---|---|---|---|
| 2014-07-01 | 636-392-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | WASHINGTON | MO |
| 2014-07-01 | 636-445-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | WENTZVILLE | MO |
| 2014-07-01 | 636-495-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | HIGH RIDGE | MO |
| 2014-07-01 | 636-638-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | FSSCRSTLCY | MO |
| 2014-07-01 | 636-674-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | ANTONIA | MO |
| 2014-07-01 | 636-755-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DARDENNE | MO |
| 2014-07-01 | 636-775-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | TROY | MO |
| 2014-06-23 | 636-392-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WASHINGTON | MO |
| 2014-06-23 | 636-431-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | VALLEYPARK | MO |
| 2014-06-23 | 636-452-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WARE | MO |
| 2014-06-23 | 636-649-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | UNION | MO |
| 2014-06-23 | 636-888-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ST CLAIR | MO |
| 2014-06-20 | 636-259-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GRAYSUMMIT | MO |
| 2014-06-20 | 636-429-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EUREKA | MO |
| 2014-06-20 | 636-495-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HIGH RIDGE | MO |
| 2014-06-20 | 636-725-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FSSCRSTLCY | MO |
| 2014-06-20 | 636-797-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HILLSBORO | MO |
| 2014-06-19 | 636-422-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | POND | MO |
| 2014-06-19 | 636-753-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PORTAGSIUX | MO |
| 2014-06-17 | 636-551-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CEDAR HILL | MO |
| 2014-06-17 | 636-565-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | DE SOTO | MO |
| 2014-06-17 | 636-674-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ANTONIA | MO |
| 2014-05-30 | 636-438-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANCHESTER | MO |
| 2014-04-29 | 636-238-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | MANCHESTER | MO |
| 2014-04-29 | 636-243-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | DE SOTO | MO |
| 2014-04-29 | 636-259-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | GRAYSUMMIT | MO |
| 2014-04-29 | 636-271-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | PACIFIC | MO |
| 2014-04-29 | 636-283-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | WASHINGTON | MO |
| 2014-04-29 | 636-287-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | MAXVILLE | MO |
| 2014-04-29 | 636-429-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | EUREKA | MO |
| 2014-04-29 | 636-431-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | VALLEYPARK | MO |
| 2014-04-29 | 636-495-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | HIGH RIDGE | MO |
| 2014-04-29 | 636-548-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | MAXVILLE | MO |
| 2014-04-29 | 636-649-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | UNION | MO |
| 2014-04-29 | 636-649-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | UNION | MO |
| 2014-04-29 | 636-733-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CHESTERFLD | MO |
| 2014-04-29 | 636-789-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | HILLSBORO | MO |
| 2014-04-29 | 636-888-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | ST CLAIR | MO |
| 2014-04-17 | 636-856-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WENTZVILLE | MO |
| 2014-04-15 | 636-266-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | MO |
| 2014-04-09 | 636-206-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2014-04-07 | 636-321-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MAXVILLE | MO |
| 2014-04-07 | 636-717-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FENTON | MO |
| 2014-04-07 | 636-741-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | IMPERIAL | MO |
| 2014-04-04 | 636-223-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | IMPERIAL | MO |
| 2014-04-02 | 636-206-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ST CHARLES | MO |
| 2014-03-28 | 636-812-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | CHESTERFLD | MO |
| 2014-03-24 | 636-551-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | CEDAR HILL | MO |
| 2014-03-19 | 636-492-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | FENTON | MO |
| 2014-03-17 | 636-638-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | 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.