NumberResearchRecent thousands-block assignments
7 blocks assigned in February 2026 · from the daily NANPA thousands-block report, 09/18/2026
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, February 2026
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-02-27 | 369-237-8XXX | T-MOBILE USA, INC. | 6529 | LOWER LAKE | CA |
| 2026-02-10 | 539-237-5XXX | T-MOBILE USA, INC. | 6529 | STIGLER | OK |
| 2026-02-05 | 669-362-3XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2026-02-05 | 669-366-6XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2026-02-05 | 669-366-7XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2026-02-05 | 669-366-8XXX | T-MOBILE USA, INC. | 6529 | SARATOGA | CA |
| 2026-02-05 | 951-810-0XXX | T-MOBILE USA, INC. | 6529 | MORENO | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.