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 640
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-11-29 | 640-345-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | SEAIS CITY | NJ |
| 2023-07-17 | 640-344-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | FORT DIX | NJ |
| 2022-12-07 | 640-218-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | DENNISVL | NJ |
| 2020-01-09 | 640-500-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | MAYS LDG | NJ |
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.