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 |
|---|---|---|---|---|---|---|---|
| 2016-03-31 | 636-717-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FENTON | MO |
| 2016-03-23 | 636-242-0XXX | 0000–0999 | Assigned | CHARITON VALLEY COMMUNICATIONS CORPORATION | 250A | MARTHASVL | MO |
| 2016-03-15 | 636-481-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | HILLSBORO | MO |
| 2016-03-15 | 636-775-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | TROY | MO |
| 2016-03-15 | 636-789-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | HILLSBORO | MO |
| 2016-03-14 | 636-249-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2016-03-14 | 636-249-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2016-03-11 | 636-757-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ST CHARLES | MO |
| 2016-03-09 | 636-775-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | TROY | MO |
| 2016-03-07 | 636-891-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANCHESTER | MO |
| 2016-03-07 | 636-891-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANCHESTER | MO |
| 2016-03-07 | 636-891-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MANCHESTER | MO |
| 2016-03-04 | 636-888-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | ST CLAIR | MO |
| 2016-03-04 | 636-888-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | ST CLAIR | MO |
| 2016-03-02 | 636-306-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | HERCUMPVLY | MO |
| 2016-03-02 | 636-306-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | HERCUMPVLY | MO |
| 2016-03-02 | 636-384-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WRIGHTCITY | MO |
| 2016-03-02 | 636-384-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WRIGHTCITY | MO |
| 2016-03-02 | 636-434-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | PORTAGSIUX | MO |
| 2016-03-02 | 636-434-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | PORTAGSIUX | MO |
| 2016-03-02 | 636-948-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | ANTONIA | MO |
| 2016-03-02 | 636-948-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | ANTONIA | MO |
| 2016-03-01 | 636-337-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | DE SOTO | MO |
| 2016-03-01 | 636-337-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | DE SOTO | MO |
| 2016-02-29 | 636-249-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | UNION | MO |
| 2016-02-29 | 636-249-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | UNION | MO |
| 2016-02-29 | 636-275-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | MAXVILLE | MO |
| 2016-02-29 | 636-275-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | MAXVILLE | MO |
| 2016-02-29 | 636-551-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | CEDAR HILL | MO |
| 2016-02-29 | 636-551-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | CEDAR HILL | MO |
| 2016-02-26 | 636-428-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | HIGH RIDGE | MO |
| 2016-02-26 | 636-428-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | HIGH RIDGE | MO |
| 2016-02-26 | 636-535-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | FSSCRSTLCY | MO |
| 2016-02-26 | 636-535-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | FSSCRSTLCY | MO |
| 2016-02-26 | 636-741-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | IMPERIAL | MO |
| 2016-02-26 | 636-741-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | IMPERIAL | MO |
| 2016-02-23 | 636-317-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HARVESTER | MO |
| 2016-02-19 | 636-735-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | CHESTERFLD | MO |
| 2016-02-19 | 636-735-8XXX | 8000–8999 | Assigned | ONVOY, LLC - MO | 093F | CHESTERFLD | MO |
| 2016-02-19 | 636-779-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | MANCHESTER | MO |
| 2016-02-19 | 636-779-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | MANCHESTER | MO |
| 2016-02-16 | 636-481-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | HILLSBORO | MO |
| 2016-02-10 | 636-442-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | HARVESTER | MO |
| 2016-02-10 | 636-685-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | HARVESTER | MO |
| 2016-01-12 | 636-900-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | MO |
| 2016-01-12 | 636-900-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | MO |
| 2016-01-08 | 636-383-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TROY | MO |
| 2016-01-08 | 636-383-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TROY | MO |
| 2016-01-08 | 636-409-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | OFALLON | MO |
| 2016-01-08 | 636-633-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | IMPERIAL | 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.