NumberResearchThousands-blocks in 574-725
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 574-725 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 574 blocks
Most active assignees, all time — NPA 574
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-09-20 | 574-725-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF INDIANA, LLC - IN | 279F | LOGANSPORT | IN |
| 2013-09-20 | 574-725-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF INDIANA, LLC - IN | 279F | LOGANSPORT | IN |
| 2015-06-17 | 574-725-2XXX | 2000–2999 | Assigned | ONVOY, LLC - IN | 097D | LOGANSPORT | IN |
| — | 574-725-3XXX | 3000–3999 | Reserved | FRONTIER NORTH, INC.. - IN | 0772 | LOGANSPORT | IN |
| 2026-02-17 | 574-725-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LOGANSPORT | IN |
| 2016-04-20 | 574-725-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LOGANSPORT | IN |
| — | 574-725-6XXX | 6000–6999 | Available | LOGANSPORT | IN | ||
| 2014-04-02 | 574-725-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LOGANSPORT | IN |
| 2015-04-15 | 574-725-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LOGANSPORT | IN |
| 2018-09-24 | 574-725-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF INDIANA, LLC - IN | 279F | LOGANSPORT | IN |
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.