NumberResearchRecent thousands-block assignments
10 blocks assigned in March 2026 · 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, March 2026 — NPA 369
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-03-30 | 369-226-4XXX | 4000–4999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | ARCATA | CA |
| 2026-03-30 | 369-239-6XXX | 6000–6999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | PTLM SWIFT | CA |
| 2026-03-26 | 369-233-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | LAKEPORT | CA |
| 2026-03-26 | 369-238-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | HEALDSBURG | CA |
| 2026-03-23 | 369-333-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | LOLETA | CA |
| 2026-03-11 | 369-238-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | HEALDSBURG | CA |
| 2026-03-04 | 369-217-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VALLEJO | CA |
| 2026-03-04 | 369-217-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VALLEJO | CA |
| 2026-03-02 | 369-229-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | DIXON | CA |
| 2026-03-02 | 369-239-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | PTLM SWIFT | CA |
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.