NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 479
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-01-18 | 479-336-4XXX | 4000–4999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | LONDON | AR |
| 2014-08-20 | 479-219-1XXX | 1000–1999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | RUSSELLVL | AR |
| 2014-05-21 | 479-219-3XXX | 3000–3999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | RUSSELLVL | AR |
| 2014-05-21 | 479-219-4XXX | 4000–4999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | RUSSELLVL | AR |
| 2014-05-21 | 479-219-5XXX | 5000–5999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | RUSSELLVL | AR |
| 2014-01-09 | 479-307-1XXX | 1000–1999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | ATKINS | AR |
| 2014-01-09 | 479-315-1XXX | 1000–1999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | DOVER | AR |
| 2014-01-02 | 479-477-5XXX | 5000–5999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | DARDANELLE | AR |
| 2014-01-02 | 479-647-4XXX | 4000–4999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | CLARKSVL | AR |
| 2014-01-02 | 479-647-5XXX | 5000–5999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | CLARKSVL | AR |
| 2009-02-04 | 479-280-1XXX | 1000–1999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | RUSSELLVL | AR |
| 2006-08-17 | 479-477-3XXX | 3000–3999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | DARDANELLE | AR |
| 2006-08-17 | 479-567-5XXX | 5000–5999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | RUSSELLVL | AR |
| 2006-08-17 | 479-647-3XXX | 3000–3999 | Assigned | TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR | 048G | CLARKSVL | AR |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.