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 |
|---|---|---|---|---|---|---|---|
| 2005-11-22 | 636-233-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST CHARLES | MO |
| 2005-11-18 | 636-451-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | GRAYSUMMIT | MO |
| 2005-11-16 | 636-887-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WENTZVILLE | MO |
| 2005-11-14 | 636-233-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2005-10-17 | 636-896-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - MO | 993E | ST CHARLES | MO |
| 2005-10-07 | 636-577-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST PETERS | MO |
| 2005-10-04 | 636-671-9XXX | 9000–9999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HIGH RIDGE | MO |
| 2005-09-29 | 636-238-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | MANCHESTER | MO |
| 2005-09-29 | 636-238-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | MANCHESTER | MO |
| 2005-09-29 | 636-923-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | VALLEYPARK | MO |
| 2005-09-13 | 636-821-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | POND | MO |
| 2005-09-01 | 636-549-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | EUREKA | MO |
| 2005-08-23 | 636-224-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | HERCUMPVLY | MO |
| 2005-08-16 | 636-234-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | UNION | MO |
| 2005-08-08 | 636-223-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | IMPERIAL | MO |
| 2005-08-08 | 636-333-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MAXVILLE | MO |
| 2005-08-08 | 636-451-6XXX | 6000–6999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | GRAYSUMMIT | MO |
| 2005-07-27 | 636-233-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2005-07-27 | 636-433-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | MARTHASVL | MO |
| 2005-07-27 | 636-634-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2005-07-21 | 636-235-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | WARRENTON | MO |
| 2005-07-11 | 636-293-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2005-07-06 | 636-328-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2005-07-06 | 636-328-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2005-07-06 | 636-328-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2005-07-06 | 636-667-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | MO |
| 2005-07-05 | 636-463-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | FORISTELL | MO |
| 2005-07-05 | 636-566-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | WINFIELD | MO |
| 2005-06-29 | 636-359-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WARRENTON | MO |
| 2005-06-21 | 636-352-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ST CHARLES | MO |
| 2005-06-21 | 636-352-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ST CHARLES | MO |
| 2005-06-13 | 636-321-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | MAXVILLE | MO |
| 2005-06-06 | 636-692-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | HIGH RIDGE | MO |
| 2005-06-06 | 636-692-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | HIGH RIDGE | MO |
| 2005-05-25 | 636-344-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | HARVESTER | MO |
| 2005-05-25 | 636-344-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | HARVESTER | MO |
| 2005-05-25 | 636-344-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | HARVESTER | MO |
| 2005-05-25 | 636-344-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | HARVESTER | MO |
| 2005-05-25 | 636-344-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | HARVESTER | MO |
| 2005-05-20 | 636-233-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST CHARLES | MO |
| 2005-05-13 | 636-422-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | POND | MO |
| 2005-05-03 | 636-489-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CHESTERFLD | MO |
| 2005-05-03 | 636-489-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CHESTERFLD | MO |
| 2005-04-12 | 636-358-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TROY | MO |
| 2005-04-12 | 636-358-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TROY | MO |
| 2005-04-07 | 636-614-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | OFALLON | MO |
| 2005-04-07 | 636-614-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | OFALLON | MO |
| 2005-03-17 | 636-328-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2005-03-17 | 636-328-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2005-03-17 | 636-328-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | 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.