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 |
|---|---|---|---|---|---|---|---|
| 2008-10-14 | 636-496-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | FENTON | MO |
| 2008-10-13 | 636-547-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | IMPERIAL | MO |
| 2008-10-03 | 636-590-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | CHESTERFLD | MO |
| 2008-09-19 | 636-587-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EUREKA | MO |
| 2008-09-11 | 636-322-3XXX | 3000–3999 | Assigned | AURORA COMMUNICATIONS, INC. - MO | 506E | ST CLAIR | MO |
| 2008-09-09 | 636-466-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2008-09-09 | 636-466-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2008-09-09 | 636-466-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2008-09-02 | 636-253-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | HIGH RIDGE | MO |
| 2008-09-02 | 636-594-8XXX | 8000–8999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO | 7432 | MANCHESTER | MO |
| 2008-08-26 | 636-364-5XXX | 5000–5999 | Assigned | PAETEC ITEL, LLC | 829J | ST CLAIR | MO |
| 2008-08-22 | 636-234-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2008-08-22 | 636-680-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | FENTON | MO |
| 2008-08-14 | 636-697-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST PETERS | MO |
| 2008-08-12 | 636-209-4XXX | 4000–4999 | Assigned | ONVOY, LLC - MO | 093F | FSSCRSTLCY | MO |
| 2008-08-12 | 636-209-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MO | 093F | FSSCRSTLCY | MO |
| 2008-08-07 | 636-221-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WASHINGTON | MO |
| 2008-08-07 | 636-465-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2008-07-31 | 636-251-8XXX | 8000–8999 | Assigned | PAETEC ITEL, LLC | 829J | FORISTELL | MO |
| 2008-07-31 | 636-295-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | TROY | MO |
| 2008-07-31 | 636-696-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2008-07-22 | 636-333-3XXX | 3000–3999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | MAXVILLE | MO |
| 2008-07-22 | 636-671-7XXX | 7000–7999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | HIGH RIDGE | MO |
| 2008-07-17 | 636-875-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ST PETERS | MO |
| 2008-07-15 | 636-542-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | OFALLON | MO |
| 2008-06-11 | 636-295-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TROY | MO |
| 2008-06-11 | 636-359-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WARRENTON | MO |
| 2008-06-11 | 636-375-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGH RIDGE | MO |
| 2008-06-11 | 636-542-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OFALLON | MO |
| 2008-06-11 | 636-744-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2008-06-10 | 636-356-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | MOSCOW ML | MO |
| 2008-06-10 | 636-661-4XXX | 4000–4999 | Assigned | PAETEC ITEL, LLC | 829J | OLD MONROE | MO |
| 2008-06-06 | 636-582-7XXX | 7000–7999 | Assigned | AURORA COMMUNICATIONS, INC. - MO | 506E | UNION | MO |
| 2008-06-05 | 636-223-2XXX | 2000–2999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | IMPERIAL | MO |
| 2008-06-05 | 636-465-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | FSSCRSTLCY | MO |
| 2008-06-04 | 636-392-9XXX | 9000–9999 | Assigned | AURORA COMMUNICATIONS, INC. - MO | 506E | WASHINGTON | MO |
| 2008-05-05 | 636-293-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2008-05-05 | 636-948-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ANTONIA | MO |
| 2008-04-23 | 636-465-2XXX | 2000–2999 | Assigned | ONVOY, LLC - MO | 093F | FSSCRSTLCY | MO |
| 2008-04-23 | 636-465-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | FSSCRSTLCY | MO |
| 2008-04-18 | 636-686-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | MANCHESTER | MO |
| 2008-04-17 | 636-384-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WRIGHTCITY | MO |
| 2008-04-16 | 636-322-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | ST CLAIR | MO |
| 2008-04-16 | 636-324-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | POND | MO |
| 2008-04-15 | 636-698-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | WENTZVILLE | MO |
| 2008-04-02 | 636-696-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | OFALLON | MO |
| 2008-04-01 | 636-744-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | UNION | MO |
| 2008-03-31 | 636-222-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | CEDAR HILL | MO |
| 2008-03-31 | 636-466-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | MO |
| 2008-03-31 | 636-466-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WENTZVILLE | 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.