NumberResearchRecent thousands-block assignments
26 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2006-05-16 | 636-232-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-05-12 | 636-229-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | HARVESTER | MO |
| 2006-05-11 | 636-489-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | CHESTERFLD | MO |
| 2006-04-17 | 636-697-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ST PETERS | MO |
| 2006-04-12 | 636-229-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | HARVESTER | MO |
| 2006-04-04 | 636-529-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | VALLEYPARK | MO |
| 2006-03-30 | 636-744-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | UNION | MO |
| 2006-03-28 | 636-489-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2006-03-21 | 636-821-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | POND | MO |
| 2006-03-20 | 636-481-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | HILLSBORO | MO |
| 2006-03-13 | 636-386-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MANCHESTER | MO |
| 2006-03-13 | 636-517-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | VALLEYPARK | MO |
| 2006-03-13 | 636-678-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | FENTON | MO |
| 2006-03-13 | 636-812-2XXX | 2000–2999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CHESTERFLD | MO |
| 2006-03-09 | 636-697-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST PETERS | MO |
| 2006-03-07 | 636-284-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HARVESTER | MO |
| 2006-03-01 | 636-697-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST PETERS | MO |
| 2006-02-27 | 636-388-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | UNION | MO |
| 2006-02-27 | 636-393-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | PACIFIC | MO |
| 2006-02-27 | 636-402-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | GRAYSUMMIT | MO |
| 2006-02-16 | 636-328-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST CHARLES | MO |
| 2006-02-08 | 636-352-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-02-08 | 636-541-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2006-02-03 | 636-422-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | POND | MO |
| 2006-02-03 | 636-548-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MAXVILLE | MO |
| 2006-01-25 | 636-384-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | WRIGHTCITY | MO |
| 2006-01-20 | 636-208-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-01-20 | 636-208-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-01-20 | 636-234-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2006-01-20 | 636-544-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OFALLON | MO |
| 2006-01-20 | 636-544-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OFALLON | MO |
| 2006-01-20 | 636-667-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | MO |
| 2006-01-19 | 636-395-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ST CHARLES | MO |
| 2006-01-19 | 636-577-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST PETERS | MO |
| 2006-01-19 | 636-577-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST PETERS | MO |
| 2006-01-11 | 636-322-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | ST CLAIR | MO |
| 2006-01-11 | 636-432-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | WASHINGTON | MO |
| 2006-01-03 | 636-293-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2006-01-03 | 636-707-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | CEDAR HILL | MO |
| 2005-12-30 | 636-205-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | WINFIELD | MO |
| 2005-12-30 | 636-334-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | PACIFIC | MO |
| 2005-12-30 | 636-364-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ST CLAIR | MO |
| 2005-12-28 | 636-373-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2005-12-28 | 636-887-4XXX | 4000–4999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WENTZVILLE | MO |
| 2005-12-20 | 636-221-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | WASHINGTON | MO |
| 2005-12-20 | 636-764-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | FENTON | MO |
| 2005-12-20 | 636-764-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | FENTON | MO |
| 2005-12-06 | 636-577-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST PETERS | MO |
| 2005-11-28 | 636-627-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2005-11-22 | 636-233-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST CHARLES | MO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.