NumberResearchThousands-blocks in 570-612
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 570-612 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 570 blocks
Most active assignees, all time — NPA 570
New assignments by month
Sep 2026
Aug 2026
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Jun 2026
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Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-03-28 | 570-612-0XXX | 0000–0999 | Assigned | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| 2008-03-28 | 570-612-1XXX | 1000–1999 | Assigned | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| 2022-09-28 | 570-612-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | SHENANDOAH | PA |
| 2006-10-04 | 570-612-3XXX | 3000–3999 | Assigned | CTSI, INC. - PA | 7513 | SHENANDOAH | PA |
| 2008-10-13 | 570-612-4XXX | 4000–4999 | Assigned | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| 2008-10-13 | 570-612-5XXX | 5000–5999 | Assigned | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| 2008-10-13 | 570-612-6XXX | 6000–6999 | Assigned | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| 2008-10-13 | 570-612-7XXX | 7000–7999 | Assigned | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| 2008-10-13 | 570-612-8XXX | 8000–8999 | Assigned | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| 2003-07-14 | 570-612-9XXX | 9000–9999 | Assigned | CORE COMMUNICATIONS, INC. - PA | 3806 | SHENANDOAH | PA |
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.