NumberResearchRecent thousands-block assignments
15 blocks assigned in August 2026 · 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, August 2026 — NPA 501
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-08-26 | 501-272-1XXX | 1000–1999 | Assigned | ONVOY, LLC - AR | 348F | LITTLEROCK | AR |
| 2026-08-25 | 501-591-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | BEEBE | AR |
| 2026-08-24 | 501-514-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | CONWAY | AR |
| 2026-08-24 | 501-597-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2026-08-24 | 501-597-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2026-08-24 | 501-881-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AR | 348F | HOTSPRINGS | AR |
| 2026-08-18 | 501-284-8XXX | 8000–8999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | JUDSONIA | AR |
| 2026-08-18 | 501-299-4XXX | 4000–4999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | KENSETT | AR |
| 2026-08-18 | 501-488-3XXX | 3000–3999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | BRADFORD | AR |
| 2026-08-18 | 501-582-8XXX | 8000–8999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | BENTON | AR |
| 2026-08-17 | 501-582-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | BENTON | AR |
| 2026-08-17 | 501-582-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | BENTON | AR |
| 2026-08-17 | 501-582-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | BENTON | AR |
| 2026-08-13 | 501-277-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AR | 348F | GREENBRIER | AR |
| 2026-08-12 | 501-610-0XXX | 0000–0999 | Assigned | ONVOY, LLC - AR | 348F | CABOT | AR |
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.