NumberResearchRecent thousands-block assignments
0 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, all time — NPA 636
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-07-28 | 636-319-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | DARDENNE | MO |
| 2026-06-16 | 636-313-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MANCHESTER | MO |
| 2026-06-16 | 636-430-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | FORISTELL | MO |
| 2026-04-02 | 636-313-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MANCHESTER | MO |
| 2026-01-13 | 636-286-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | UNION | MO |
| 2026-01-06 | 636-298-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MANCHESTER | MO |
| 2025-12-17 | 636-250-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ORCHARDFRM | MO |
| 2025-12-17 | 636-268-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2025-09-09 | 636-393-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | PACIFIC | MO |
| 2025-08-19 | 636-590-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2025-05-05 | 636-430-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FORISTELL | MO |
| 2025-03-17 | 636-250-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ORCHARDFRM | MO |
| 2025-03-17 | 636-267-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ANTONIA | MO |
| 2025-03-17 | 636-628-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MANCHESTER | MO |
| 2025-03-17 | 636-755-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DARDENNE | MO |
| 2025-03-17 | 636-837-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HERCUMPVLY | MO |
| 2024-06-07 | 636-431-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEYPARK | MO |
| 2024-06-07 | 636-431-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEYPARK | MO |
| 2024-06-07 | 636-517-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEYPARK | MO |
| 2023-08-14 | 636-341-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | FSSCRSTLCY | MO |
| 2023-08-14 | 636-341-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | FSSCRSTLCY | MO |
| 2023-08-14 | 636-367-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | TROY | MO |
| 2023-08-14 | 636-367-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | TROY | MO |
| 2023-07-28 | 636-378-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ST PETERS | MO |
| 2023-07-28 | 636-378-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ST PETERS | MO |
| 2023-07-28 | 636-378-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ST PETERS | MO |
| 2023-06-13 | 636-529-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEYPARK | MO |
| 2023-06-13 | 636-529-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEYPARK | MO |
| 2023-06-13 | 636-529-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | VALLEYPARK | MO |
| 2023-01-12 | 636-829-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | HIGH RIDGE | MO |
| 2022-08-10 | 636-829-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | HIGH RIDGE | MO |
| 2022-04-26 | 636-341-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FSSCRSTLCY | MO |
| 2022-04-26 | 636-341-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | FSSCRSTLCY | MO |
| 2022-04-26 | 636-341-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | FSSCRSTLCY | MO |
| 2022-01-11 | 636-213-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WARRENTON | MO |
| 2022-01-11 | 636-214-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-11 | 636-214-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-11 | 636-214-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-09 | 636-201-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | WARRENTON | MO |
| 2022-01-09 | 636-204-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WARRENTON | MO |
| 2022-01-09 | 636-252-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-09 | 636-252-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-09 | 636-252-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-09 | 636-252-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CHESTERFLD | MO |
| 2022-01-09 | 636-369-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | WASHINGTON | MO |
| 2022-01-09 | 636-369-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | WASHINGTON | MO |
| 2022-01-09 | 636-758-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CLAIR | MO |
| 2022-01-09 | 636-758-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CLAIR | MO |
| 2022-01-09 | 636-758-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ST CLAIR | MO |
| 2021-12-13 | 636-525-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | IMPERIAL | 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.