NumberResearchThousands-blocks in 515-364
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 515-364 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 515 blocks
Most active assignees, all time — NPA 515
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-09-05 | 515-364-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | GOLDFIELD | IA |
| 2019-10-11 | 515-364-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | GOLDFIELD | IA |
| 2021-08-11 | 515-364-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | GOLDFIELD | IA |
| 2024-11-06 | 515-364-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - IA | 6266 | GOLDFIELD | IA |
| 2018-05-02 | 515-364-4XXX | 4000–4999 | Assigned | INTEGRATED PATH COMMUNCATIONS, LLC - IA | 544H | GOLDFIELD | IA |
| 2026-06-11 | 515-364-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | GOLDFIELD | IA |
| — | 515-364-6XXX | 6000–6999 | Available | GOLDFIELD | IA | ||
| — | 515-364-7XXX | 7000–7999 | Available | GOLDFIELD | IA | ||
| 2024-07-31 | 515-364-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | GOLDFIELD | IA |
| — | 515-364-9XXX | 9000–9999 | Available | GOLDFIELD | IA |
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.