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 872
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-06-15 | 872-291-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN08 | IL |
| 2026-06-15 | 872-391-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN06 | IL |
| 2021-12-21 | 872-822-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN07 | IL |
| 2021-12-21 | 872-844-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN09 | IL |
| 2021-12-21 | 872-855-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN04 | IL |
| 2021-10-15 | 872-871-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN01 | IL |
| 2014-10-24 | 872-901-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN07 | IL |
| 2014-10-24 | 872-901-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN07 | IL |
| 2014-10-16 | 872-401-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN07 | IL |
| 2014-07-02 | 872-242-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN04 | IL |
| 2014-06-27 | 872-713-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN04 | IL |
| 2014-06-27 | 872-777-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | CHICGOZN07 | IL |
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.