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 |
|---|---|---|---|---|---|---|---|
| 2007-07-10 | 636-875-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ST PETERS | MO |
| 2007-07-09 | 636-680-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | FENTON | MO |
| 2007-07-05 | 636-293-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2007-07-03 | 636-524-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2007-07-03 | 636-524-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2007-07-02 | 636-465-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | FSSCRSTLCY | MO |
| 2007-06-22 | 636-542-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | OFALLON | MO |
| 2007-06-07 | 636-283-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | WASHINGTON | MO |
| 2007-05-30 | 636-359-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WARRENTON | MO |
| 2007-05-25 | 636-524-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | FSSCRSTLCY | MO |
| 2007-05-24 | 636-375-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGH RIDGE | MO |
| 2007-05-24 | 636-375-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGH RIDGE | MO |
| 2007-05-24 | 636-388-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2007-05-24 | 636-388-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2007-05-15 | 636-534-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | CHESTERFLD | MO |
| 2007-05-11 | 636-284-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HARVESTER | MO |
| 2007-04-23 | 636-614-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2007-04-23 | 636-614-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2007-04-18 | 636-395-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CHARLES | MO |
| 2007-04-16 | 636-395-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | ST CHARLES | MO |
| 2007-04-11 | 636-387-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST PETERS | MO |
| 2007-03-29 | 636-368-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2007-03-29 | 636-368-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2007-03-06 | 636-544-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OFALLON | MO |
| 2007-02-28 | 636-697-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ST PETERS | MO |
| 2007-02-26 | 636-524-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2007-02-26 | 636-524-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2007-02-16 | 636-534-7XXX | 7000–7999 | Assigned | PAETEC ITEL, LLC | 829J | CHESTERFLD | MO |
| 2007-02-15 | 636-321-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | MAXVILLE | MO |
| 2007-02-12 | 636-234-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2007-02-12 | 636-234-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2007-02-08 | 636-387-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | ST PETERS | MO |
| 2007-02-08 | 636-462-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | TROY | MO |
| 2007-01-26 | 636-235-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | WARRENTON | MO |
| 2007-01-18 | 636-887-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2007-01-18 | 636-887-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2007-01-15 | 636-355-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | FOLEY | MO |
| 2007-01-15 | 636-782-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | HOLSTEIN | MO |
| 2007-01-15 | 636-791-2XXX | 2000–2999 | Assigned | BRIGHTSPEED OF MISSOURI, LLC | 9787 | WRIGHTCITY | MO |
| 2007-01-09 | 636-692-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGH RIDGE | MO |
| 2007-01-09 | 636-692-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGH RIDGE | MO |
| 2006-12-22 | 636-388-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | UNION | MO |
| 2006-12-04 | 636-284-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HARVESTER | MO |
| 2006-11-29 | 636-600-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FENTON | MO |
| 2006-11-21 | 636-359-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WARRENTON | MO |
| 2006-11-21 | 636-387-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST PETERS | MO |
| 2006-11-09 | 636-232-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-11-09 | 636-232-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-11-09 | 636-524-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2006-11-08 | 636-465-0XXX | 0000–0999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | FSSCRSTLCY | 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.