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 256
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2012-05-01 | 256-224-0XXX | 0000–0999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | ARAB | AL |
| 2009-09-16 | 256-397-4XXX | 4000–4999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | ALEXANDRCY | AL |
| 2008-11-18 | 256-254-1XXX | 1000–1999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | MENTONE | AL |
| 2008-11-18 | 256-647-2XXX | 2000–2999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | SCOTTSBORO | AL |
| 2008-10-29 | 256-901-1XXX | 1000–1999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | LINEVILLE | AL |
| 2008-10-20 | 256-201-5XXX | 5000–5999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | HEFLIN | AL |
| 2007-03-01 | 256-280-5XXX | 5000–5999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | DECATUR | AL |
| 2006-11-22 | 256-392-2XXX | 2000–2999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | ALEXANDRCY | AL |
| 2006-06-12 | 256-610-0XXX | 0000–0999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | WEDOWEE | AL |
| 2006-03-31 | 256-460-3XXX | 3000–3999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | RUSSELLVL | AL |
| 2005-11-17 | 256-392-0XXX | 0000–0999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | ALEXANDRCY | AL |
| 2005-06-08 | 256-373-1XXX | 1000–1999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | DADEVILLE | AL |
| 2005-05-05 | 256-610-2XXX | 2000–2999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | WEDOWEE | AL |
| 2005-05-05 | 256-618-2XXX | 2000–2999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | ASHLAND | AL |
| 2004-07-14 | 256-391-2XXX | 2000–2999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | SYLACAUGA | AL |
| 2004-07-13 | 256-320-0XXX | 0000–0999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | SHEFFIELD | AL |
| 2004-06-18 | 256-322-5XXX | 5000–5999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | TALLADEGA | AL |
| 2003-11-04 | 256-610-1XXX | 1000–1999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | WEDOWEE | AL |
| 2003-10-07 | 256-618-1XXX | 1000–1999 | Assigned | SOUTHERN COMMUNICATIONS SERVICES, INC. | 6744 | ASHLAND | AL |
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.