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 |
|---|---|---|---|---|---|---|---|
| 2006-10-17 | 636-323-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ANTONIA | MO |
| 2006-10-12 | 636-242-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | MARTHASVL | MO |
| 2006-10-12 | 636-377-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WARRENTON | MO |
| 2006-10-12 | 636-400-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | PORTAGSIUX | MO |
| 2006-10-04 | 636-866-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-10-04 | 636-866-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-09-22 | 636-575-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGH RIDGE | MO |
| 2006-09-22 | 636-692-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGH RIDGE | MO |
| 2006-09-19 | 636-866-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-09-19 | 636-866-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-09-15 | 636-293-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2006-09-14 | 636-368-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2006-09-13 | 636-221-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | MO |
| 2006-09-11 | 636-368-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | CHESTERFLD | MO |
| 2006-08-31 | 636-232-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-08-31 | 636-232-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-08-28 | 636-322-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CLAIR | MO |
| 2006-08-28 | 636-432-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WASHINGTON | MO |
| 2006-08-28 | 636-744-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | UNION | MO |
| 2006-08-22 | 636-452-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | WARE | MO |
| 2006-08-16 | 636-203-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | FENTON | MO |
| 2006-08-16 | 636-203-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | FENTON | MO |
| 2006-08-16 | 636-284-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | HARVESTER | MO |
| 2006-08-16 | 636-284-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | HARVESTER | MO |
| 2006-08-07 | 636-234-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2006-07-21 | 636-627-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-07-17 | 636-431-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | VALLEYPARK | MO |
| 2006-06-30 | 636-229-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | HARVESTER | MO |
| 2006-06-30 | 636-237-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | CHESTERFLD | MO |
| 2006-06-23 | 636-866-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-06-23 | 636-866-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-06-22 | 636-232-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-06-22 | 636-544-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OFALLON | MO |
| 2006-06-22 | 636-627-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2006-06-22 | 636-627-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2006-06-21 | 636-322-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ST CLAIR | MO |
| 2006-06-21 | 636-432-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | WASHINGTON | MO |
| 2006-06-21 | 636-744-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | UNION | MO |
| 2006-06-20 | 636-284-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | HARVESTER | MO |
| 2006-06-14 | 636-266-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | WASHINGTON | MO |
| 2006-06-07 | 636-231-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | WASHINGTON | MO |
| 2006-06-02 | 636-695-4XXX | 4000–4999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | DARDENNE | MO |
| 2006-05-26 | 636-290-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | TROY | MO |
| 2006-05-26 | 636-489-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2006-05-26 | 636-541-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-05-26 | 636-541-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-05-17 | 636-224-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HERCUMPVLY | MO |
| 2006-05-17 | 636-337-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | DE SOTO | MO |
| 2006-05-17 | 636-674-5XXX | 5000–5999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | ANTONIA | MO |
| 2006-05-17 | 636-797-8XXX | 8000–8999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HILLSBORO | 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.