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
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | 479-465-1XXX | 1000–1999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | ATKINS | AR |
| 2025-12-15 | 479-592-1XXX | 1000–1999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | FORT SMITH | AR |
| 2023-03-07 | 479-412-1XXX | 1000–1999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | CENTERTON | AR |
| 2022-12-21 | 479-470-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | HECTOR | AR |
| 2022-12-21 | 479-482-1XXX | 1000–1999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | DOVER | AR |
| 2022-12-21 | 479-625-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | LONDON | AR |
| 2021-12-13 | 479-449-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | RUSSELLVL | AR |
| 2021-09-20 | 479-383-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | VAN BUREN | AR |
| 2021-03-16 | 479-425-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | ALMA | AR |
| 2021-03-10 | 479-779-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | OZARK | AR |
| 2019-06-05 | 479-334-7XXX | 7000–7999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | SPRINGDALE | AR |
| 2019-06-05 | 479-335-2XXX | 2000–2999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | ROGERS | AR |
| 2019-06-05 | 479-360-5XXX | 5000–5999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | BENTONVL | AR |
| 2018-09-12 | 479-332-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | FAYETTEVL | AR |
| 2017-01-18 | 479-551-0XXX | 0000–0999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | FORT SMITH | AR |
| 2015-08-11 | 479-214-6XXX | 6000–6999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | CLARKSVL | AR |
| 2015-08-11 | 479-219-9XXX | 9000–9999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | RUSSELLVL | 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.