NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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 605
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-09-24 | 605-805-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | PIERRE | SD |
| 2021-06-23 | 605-522-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | YANKTON | SD |
| 2021-05-04 | 605-418-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | ABERDEEN | SD |
| 2021-04-20 | 605-300-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | BERESFORD | SD |
| 2021-04-18 | 605-601-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | SIOUX FLS | SD |
| 2021-04-14 | 605-608-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | RAPID CITY | SD |
| 2021-02-12 | 605-303-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | WATERTOWN | SD |
| 2021-02-12 | 605-736-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | BROOKINGS | SD |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.