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 256
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-08-09 | 256-885-6XXX | 6000–6999 | Assigned | MCC TELEPHONY LLC | 593K | HUNTSVILLE | AL |
| 2012-10-24 | 256-813-3XXX | 3000–3999 | Assigned | MCC TELEPHONY LLC | 593K | HAZELGREEN | AL |
| 2012-02-13 | 256-929-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | HUNTSVILLE | AL |
| 2010-06-22 | 256-943-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | ARDMORE | AL |
| 2010-05-21 | 256-985-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | NEW MARKET | AL |
| 2010-05-13 | 256-693-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | HAZELGREEN | AL |
| 2010-05-13 | 256-756-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | GURLEY | AL |
| 2010-05-13 | 256-867-9XXX | 9000–9999 | Assigned | MCC TELEPHONY LLC | 593K | ATHENS | AL |
| 2010-04-23 | 256-929-1XXX | 1000–1999 | Assigned | MCC TELEPHONY LLC | 593K | HUNTSVILLE | AL |
| 2006-01-11 | 256-693-4XXX | 4000–4999 | Assigned | MCC TELEPHONY LLC | 593K | HAZELGREEN | AL |
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.